LISTING OF NUMBERED MARYLAND STATE HIGHWAYS Compiled by Mike Pruett Last updated: February 26, 2021 This is a listing of present and past numbered Maryland state highways. Each instance of a number is given only one line, therefore for some of the longer routes with many names only a general description, such as endpoints and destination, are given; they're usually not hard to find on maps. When a number traverses three or fewer different road names, I have given them, along with endpoints and county or town name. Some names of numbered roads within incorporated cities and towns have been omitted for brevity. For some of the more obscure or otherwise 'secret' routes, I have given a more detailed description, as much as can be packed in one line. All cross references to numbers are Maryland routes unless noted as US or Interstate. Generally, the more elaborate the description, the more obscure, and obscurity is not confined to the higher numbers in Maryland. (Recommended reading: MD 37, 44, & 95) Decommissioned routes are indicated by 'was' preceding the description. If the same number has been used on two totally different roads, each gets a line with the same number, the current or most recent first, followed by earlier routings. For some of the obscure routes I have observed whether or not they are signed. They'll have (signed) or (unsigned) next to them. (Guess that's the difference between 'obscure' and 'secret') The text listing here is a preliminary for a website which will give the below route descriptions in more detail. It will have more in-depth discussion about such things as route clustering by county, numbering of old alignments, exact route description, name changes of numbered routes within cities & towns, more elaborate history notes/maps, and any other stuff you may come up with. I would welcome and appreciate comments, corrections, updates, and other info about Maryland maps or routing info, especially 1950s and earlier. MARYLAND'S 23 COUNTIES + 1 INDEPENDENT CITY County & Abbr. County Seat Region(s) of Maryland --------------- -- ---------------- --------------------------------- Allegany AL Cumberland Western Mountains Anne Arundel AA Annapolis Baltimore Metro/Southern Baltimore BA Towson Baltimore Metro/North Central Baltimore City* BC Baltimore Baltimore Metro Calvert CV Prince Frederick Southern Carroll CR Westminster Baltimore Metro/North Central Caroline CL Denton Middle Eastern Shore Cecil CE Elkton Northeast Charles CH La Plata Washington Metro/Southern Dorchester DO Cambridge Lower Eastern Shore Frederick FR Frederick North Central Garrett GA Oakland Western Mountains Harford HA Bel Air Baltimore Metro/Northeast Howard HO Ellicott City Baltimore Metro/Washington Metro Kent KE Chestertown Upper Eastern Shore Montgomery MO Rockville Washington Metro Prince George's PG Upper Marlboro Washington Metro Queen Anne's QA Centreville Upper Eastern Shore St. Mary's SM Leonardtown Southern Somerset SO Princess Anne Lower Eastern Shore Talbot TA Easton Middle Eastern Shore Washington WA Hagerstown Western Mountains Wicomico WI Salisbury Lower Eastern Shore Worcester WO Snow Hill Lower Eastern Shore/Atlantic Shore *-Independent city-separate political entity from Baltimore County. See notes below. IMPORTANT NOTES ABOUT BALTIMORE CITY: The SHA maintains all state, US, and Interstate highways except within Baltimore City. All Baltimore City 95-x95 interstates (+ MLK Blvd.?) and other Maryland toll roads are maintained by the Maryland Transportation Authority (MdTA-formerly Toll Facilities). Baltimore City DOT also \ maintains I-83 within the city. All surface streets are maintained and are given state or US signage by Baltimore City, which places them to continue routes into/through the city as it sees fit. Of routes entering the city shown on SHA maps, those I've obsereved signed are US 1 & 40, Truck US 40, and Maryland 2, 25, 26, 45, 129, 140, 144, 147, 295, & 542. Others not signed are Alt US 1, and Maryland 126, 150, & 372. In the case of MD 150 & Alt US 1, they are signed on I-95 guide signs near their respective exits. There are still some signed references to Maryland 3 in downtown Baltimore, although MD Route 3 now 'ends' at its junction with I-97 in Anne Arundel County. No signed Maryland routes run exclusively within Baltimore City. Some city signs for Maryland routes are on non-standard shape markers, with the number in a circle, not the usual MD square/rectangle. WICOMICO COUNTY ROUTE SYSTEM: Shown on ADC maps, which make no graphic distinction between state and county/secondary routes. Some of these numbers made it to other sources via TIGER, with these numbers in lieu of actual names. Unsigned by county roads department; where you will find these numbers is on plats and deed descriptions in this county. Quadrant based similar to PA: 100s NE, 200s SE, 300s SW, 400s NW. GARRETT COUNTY ROUTE SYSTEM: Garrett Co. may also have an unsigned internal route system. Seen on a few state topo maps. ORIGINAL CLUSTERING: 2-6 Major routes (southern MD) 12-21 Major routes (Eastern Shore) 22-37 Major routes (Central-Western MD, east-west) 38-42 Garrett Co. 44-55 Allegany Co. 56-68 Washington Co. 69-81 Frederick Co. 83-93 Carroll Co. 94-106 Howard co. 107-124 Montgomery Co. (northern & central) 125-151 Baltimore Co. 152-165 Harford Co. 166-181 Anne Arundel Co. (northern) 182-196 Montgomery Co. (southern) 197-214 Prince Georges Co. (northern) 215-217 Howard Co. (eastern) 218-224 Prince Georges Co. (southern) 225-234 Charles Co. 234-252 St. Mary's Co. 253-259 Anne Arundel Co. (southern) 260-266 Calvert Co. 267-287 Cecil Co. 288-299 Kent Co. 300-305 Queen Anne's Co. 306-319 Caroline Co. 320-323 Howard Co. 327-334 Talbot Co. 335-344 Dorchester Co. 346-354 Wicomico Co. 356-364 Somerset Co. 364-378 Worcester Co. SOURCES: Personal observations and memory (?) Official Maryland Highway Maps (1961-62-85-89-93-95-97) & assorted Maryland SHA sheet maps Delorme- Maryland/Delaware Atlas SA4 CD-ROM Assorted maps from ADC- County Book Maps Maryland/Delaware Road Atlas (c. 1994) Baltimore 50 Mile Radius Map (1997) Gousha Washington, DC & Vicinity (c. 1990) old Hearne Brothers wall maps- Washington, DC & Vicinity (c. 1960s) Howard County, Maryland (c. 1960s) Anne Arundel County, Maryland (c. early 1970s) Prince George's County, Maryland (c. early 1970s) State of Maryland (c. 1960s) (Five maps above located at the Catonsville Comm. College Library) State of Maryland (c. 1952-58) 1952-58 because Bay Bridge is present but not Harbor Tunnel Baltimore & Vicinity (c. 1960s) (These two maps located on 2nd floor of Geography Dept. of Essex Comm. College) Champion wall map (1985) (copies at Essex & White Marsh branches of Baltimore Co. Public Library) Copy of (1960s?) USGS map covering between 39-40 N lat. & 76-78 W long. (FM19) Used as adjunct to other maps, as it has a tendency to extend numbers to adjoining states and other roads that were never numbered, but seem logical extensions if a number was to be extended. Most numbers from this map have been confirmed by other maps) State Report on Transportation: Consolidated Transportation Program; 1988, 1991, 1998 Route Transfer Data Sheets 1930s-1990 (all 23 counties) Two letter county codes after the description are routes I've found but haven't yet given descriptions for. THE ROUTES: 1 (US 1) (ALT US 1) (BUSINESS US 1) 2 Ritchie Hwy.-Solomons Island Rd., Baltimore to Annapolis to Solomons 2 TRUCK McComas St.-Key Hwy., South Baltimore 3 Crain Hwy., US 50 to I-97 - was US 301 to Baltimore (Monroe St.) 3 BUSINESS Old Crain Hwy, I-97 to 2, Glen Burnie 3 TRUCK Along Pratt/Lombard St., Baltimore City. (nowhere near current 3) 3 was also along current US 301, then south along 257, 254, Charles Co. 4 Pennsylvania Ave.-Marlboro Pike-Goldstein Hwy, Washington to 5 4 BUSINESS was Marlboro Pike fr District Hghts. to DC line 5 Branch Ave., etc., Washington to Point Lookout 5 BUSINESS Leonardtown 6 Riverside to Newmarket through LaPlata, Charles-St. Marys Co. 7 (old US 40) Old Philadelphia Rd.-Old Post Rd., Baltimore-Harford-Cecil Co. 8 Romancoke Rd. S of 18, Kent Island (was 33 (northern)) 10 Arundel Frwy., I-695 to 2, Anne Arundel Co. 11 (US 11) 12 Snow Hill Rd., Salisbury to VA line, Wicomico-Worcester Co. 13 (US 13) (BUSINESS US 13) 14 Secretary to Eldorado, 16 to 313, Dorchester Co. 15 (US 15) (BUSINESS US 15) 16 Taylors Island to DE line, Dorchester-Caroline Co. 17 Potomac River-Brunswick to Smithsburg, Frederick-Washington Co. 17 Old number for current 33 (swapped numbers) 18 Love Point to Centreville, Queen Anne's Co. 19 Roberts Station Rd., US 301 to 313, Queen Anne's Co. 20 (western) was Old North Pt. Rd. (151), city line to 718, Baltimore Co. 20 (eastern) Rock Hall to Chestertown, Kent Co. 21 Tolchester Beach Rd., Sandy Bottom to Tolchester, W of 20 (eastern), Kent Co. 22 Churchville Rd.-Aberdeen Thruway, Harford Co. 23 Bel Air to Norrisville, Harford Co. 24 Edgewood N to PA line, Harford Co. 25 Falls Rd., Baltimore Co. 26 Liberty Rd., Baltimore to Frederick 27 Ridge Rd., Manchester to Germantown 27 old number for original US 29 28 Norbeck Rd.-Darnestown Rd.-Tuscarora Rd., Montgomery-Frederick Co. 29 (US 29) 29 old number for 27 (fr 1928 pict) 30 Hanover Pike, Hampstead Bypass (u/c), 140 in Reisterstown to PA line 30 BUSINESS Hanover Pike, Main St., Hampstead 31 New Windsor Rd., Westminster to 26, Carroll-Frederick Co. 32 Patuxent Frwy.-Sykesville Rd., Crownsville to Westminster 33 St. Michaels Rd.-Tilghman Rd., Easton to Tilghman, Talbot Co. 33 was also current 8 on Kent Island (ferry?) 33 Old number for current 17 (swapped numbers) 34 Shepherdstown Pike, US Alt. 40 to Potomac nr Shepherdstown, WV 35 Ellerslie Rd. fr. 36 to PA line, Allegany Co. 36 Westernport to Cumberland, Allegany Co. 37 was McDonough Rd. ~1/2 mi. nr. I-795 overpass, Owings Mills (signed-& there since the 50s!) 37 Old number for US 219 S of US 40, before 219 was extended through Oakland 38 Kitzmiller Rd., 135 to WV line, Garrett Co. 39 Hutton-Oakland Rd., US 219 to WV line, Garrett Co. 40 (US 40) (ALT US 40) (SCENIC US 40) (TRUCK US 40) 41 Perring Pkwy., Baltimore Co. (excluding portion in Baltimore City) 41 was Mountain Cove Rd., E of Oakland to 38, Garrett Co. 42 fr. US 219 N of McHenry to PA line, Garrett Co. 43 White Marsh Blvd., I-695 to MD 150, Baltimore Co. 44 Fort Frederick Rd., ~1/2 mi., off 56 at Ft. Frederick St. Park, Washington Co. (fr ADC map) 45 York Rd., Baltimore Co. (Old US 111) 45 BYPASS Bosley Ave. (Towson Bypass) sign is white on green-signed by Baltimore Co. 45 was Water St., Frostburg 46 Old number for I-195 BWI approach 47 Barrellville Rd., 36 to PA line, Allegany Co. 48 (US 48), now I-68 48 was Pineridge Rd., sliver NE off US 200 to PA Line, Allegany Co. 49 Braddock Rd. W from Cumberland city line to 53, Allegany Co. 50 (US 50) 51 Industrial Blvd.-Uhl Hwy., Cumberland to WV line 52 was Williams Rd., E of Cumberland 53 Winchester Rd., US 40 to US 220, Allegany Co. 54 US 50, 313 to DE line, along DE line to 353, Wicomico Co. 54 was Canada Hill Rd., Myersville to Jerusalem 55 Vale Summit Rd., Alt. US 40 to 36, Allegany Co. 56 Big Pool Rd., US 40 to 68, Washington Co. 57 Saint Paul Rd., US 40 N to PA line, Washington Co. 58 Cearfoss Pike-Salem Ave., Hagerstown to PA line 59 was Holter Rd., fr 17 to 180, Frederick Co. 60 N. Potomac Ave.-Leitersburg Pike, Hagerstown to PA line 61 Canal Pkwy, SW off 51 to WV line, Cumberland (unsigned) 61 was Old Forge Rd. east of Antietam Dr., Washington Co. 62 Little Antietam Rd., 60 to 64, Washington Co. 63 Spielman Rd.-Greencastle Pike, 65 to 163/PA line, Washington Co. 64 Jefferson Blvd., Hagerstown to 17, Washington Co. 65 S. Potomac Ave.-Sharpsburg Pike, Hagerstown to Sharpsburg 66 Mapleville Rd.-Water St., Alt. US 40 to 64, Washington Co. 67 fr. Alt US 40 to US 340, Washington Co. 68 Clear Spring Rd.-Lappans Rd., US 40 to Alt. US 40, Washington Co. 69 was Jefferson Blvd., old 59 to Alt US 40, Frederick Co. 70 (I-70) 70 Rowe Blvd., US 50/301 to State Capitol, Annapolis 70 old number for 478 in Brunswick 71 old number for Eastern Shore US 301 71 old number for 194 before taken for above 72 was Powell Rd.-Lewistown Rd.-Old Frederick Rd., US 15 to 77, Frederick Co. 73 was Yellow Springs Rd.-Bethel Rd. N of Frederick 74 was Opossumtown Pike N of Frederick (fr USGS & Hearne map) 75 Green Valley Rd., 355 to 84, Montgomery-Frederick-Carroll Co. 76 Motters Station Rd., US 15 to 77, Frederick Co. 77 Rocky Ridge Rd.-Foxville Rd., 194 to 17, Carroll-Frederick Co. 78 was Ballenger Creek Pike, Frederick Co. (some now 351) 79 Petersville Rd. bet 17 & 180, Brunswick 80 Fingerboard Rd. 27 to 85, Frederick-Montgomery Co. 81 (I-81) 81 Old number for 550 N of Thurmont 82 Leland St./Maple Ave. ~2 blocks bet 355 & 191 (was to 410), Bethesda 83 (I-83) 83 was Church St., New Windsor 84 Clear Ridge Rd.-Trevanion Rd.-Baust Church Rd., 75 to 140, Carroll Co. 85 Buckeystown Rd. (Old US 15), Frederick Co. 86 Lineboro Rd., 30 to PA line 87 was Leisters Church Rd., S of 27/482, Carroll Co. (bet 27 & 482 now 849) 88 Black Rock Rd.-Lower Beckleysville Rd., from 25 NW to Bus 30, Hampstead 89 was Lower Beckleysville Rd., between 88 to county line E of Hampstead 90 Ocean City Expwy., Worcester Co. 90 was Houcksville Rd., Hampstead 91 Emory Rd.-Gamber Rd., 30 to 32, Carroll-Baltimore Co. 92 was Rowe Rd. nr Smithsburg, Washington Co. 93 was Oakland Rd., Carroll Co. 94 Ellicott Rd.-Florence Rd., from I-70 to 108, Howard Co. 95 (I-95) 95 was Comus Rd. W of 109, northern Montgomery Co. (dropped 2000) 96 was Daisy Rd., 144 S to former 583, Howard Co. 97 (I-97) 97 Georgia Ave.-Old Wash. Rd., Washington to PA line 98 was Folly Quarter Rd., Howard Co. (from old Hearne & USGS map) 99 Old Frederick Rd.-Rogers Ave., 32 to US 29, Howard Co. 100 From US 29 to 177, Anne Arundel-Howard Co. 100 was Wainwright Rd.-Old Frederick Rd., E off 99 to Patapsco River, Howard Co. (portion was 985) 101 was Henryton Rd., Ellicott City N of 144 102 was Maryland Ave., S off 144 parallel to B&O, Ellicott City 103 Montgomery Rd.-Meadowridge Rd., US 29 to US 1, Howard Co. 104 Waterloo Rd., from 103 to 108, Howard Co. 104 was Ilchester Rd., E off 103, Howard Co. 105 was Rogers Ave., current 99 E of St. Johns Lane, Ellicott City 106 was Guilford Rd., current 732-32 south of 98 107 Whites Ferry Rd., 28 to 109, Poolesville (was also west of 109 to White's Ferry?) 108 from 182 near Olney to 175 in Columbia, Montgomery-Howard Co. 109 Old Hundred Rd.-Beallsville Rd., 355 to 107, Montgomery Co. 110 was Woodville Rd., N off 144, Frederick Co. 111 (US 111) now 45, I-83 112 Seneca Rd., 28 to 190, Darnestown 113 (US 113) (BUSINESS US 113) 113 old number for current 115? 114 was Summit Ave.-Goshen Rd., 355 to Brink Rd. (was 420), Montgomery Co. 115 Muncaster Mill Rd., Montgomery Co. 116 old number for 650 north of 108 when south of jct was US 29 117 Clopper Rd, Boyds to Gaithersburg 118 Germantown Rd., Montgomery Co. 119 Great Seneca Highway, Montgomery Co. (added 1999) 119 was White Grounds Rd., Germantown 120 was Aircraft Rd., off 118, Germantown (also may have been signed as 120A) 120 was Waters Rd., off 118, Germantown (also Alt 120 west) 121 Boyds-Clarksburg Rd.-White Grounds Rd. (broken), Montgomery Co. 122 Security Blvd., Woodlawn 122 was Bethesda Church Rd., Montgomery Co. 123 was Prices Distillery Rd., W of Damascus (fr USGS & Hearne map) 124 from Damascus to 108, Montgomery Co. 125 Old Court Rd., Granite (may be dropped soon) 126 was Gwynn Oak Rd., city line to Windsor Mill Rd., Baltimore Co. 127 was Chatsworth Ave. bet. 140 and 128, Reisterstown 128 Butler Rd., Baltimore Co. 129 Park Heights Ave., Baltimore City-Co. 130 Greenspring Valley Rd., 25 to 140, Baltimore Co. 131 Seminary Ave., Lutherville-Timonium 132 Old Post Rd.-Bel Air Ave., Aberdeen - was Mays Chapel Rd., Lutherville 133 Old Court Rd.-Ruxton Rd., 129 to 25, Pikesville 134 Bellona Ave., 139 to Ruxton Rd. Towson 135 Oakland-Westernport Rd.-Luke Rd., Garrett-Washington Co. 136 from 7 nr. Abingdon to 23 in Norrisville, Harford Co. 137 Mt. Carmel Rd. 45 to 25, Baltimore Co. 138 Monkton Rd.-Sheppard Rd.-Troyer Rd., 45 to 439, Baltimore-Harford Co. 139 N. Charles St., US 1 to I-695, Baltimore City-County 140 (US 140) Baltimore to Emmitsburg, was US 140 to Gettysburg (now 97) 141 was Allegany Ave., Towson 142 was White Hall Rd., Baltimore Co. 143 was Warren Rd., Baltimore Co. 144 (old US 40) Old National Pike-Frederick Rd. (several locations and names) 144 was part of 146 south of Loch Raven Reservoir, Towson 145 Paper Mill Rd.-Sweet Air Rd., Baltimore Co. 146 Dulaney Valley Rd.-Jarrettsville Pike, 45 to 23, Baltimore-Harford Co. 147 Harford Rd., Baltimore to Bel Air 148 was E. Joppa Rd., 45 in Towson to US 1 in Perry Hall 149 was Ebenezer Rd., Whitemarsh to Chase 149 was to be Windlass Frwy W to I-95 & Moravia Rd. (only partially built-became part of I-695) 150 Eastern Ave. & Blvd., Baltimore to Chase 151 Erdman Ave.-North Pt. Blvd., Baltimore to Sparrows Pt. 152 Fallston Rd.-Mountain Rd., Harford Co. 153 Old number for 17 N of Middletown, Frederick Co. (fr USGS & Hearne map) 154 was Thomas Run Rd., N off 22, Harford Co. 155 Level Rd., Churchville to Havre de Grace 156 Aldino Rd., 22 to 155, Harford Co. 157 Peninsula Expwy. bet. Beth Steel & Bear Creek, Sparrows Pt. 157 was Chapel Rd., 462 to US 40, Harford Co. 158 Bethlehem Blvd., Sparrows Pt. 158 was Belcamp Rd., Aberdeen 159 Perryman Rd. off 7, Perryman 160 was Shuresville Rd., US 1 to 161 W of Conowingo Dam, Harford Co. 161 Darlington Rd., US 1 to 543, Harford Co. 162 Aviation Blvd. bet. 170 & 176 E of BWI 162 was Berkley Rd, NE off US 1 nr Conowingo 163 ha (S off 165) 164 was Carpenters Point Rd., SW off 267, Cecil Co. 165 Pylesville Rd.-?-145 Baldwin to PA line, Harford-Baltimore Co. 166 S. Rolling Rd., Catonsville 167 was Hammonds Ferry Rd. Lansdowne to Linthicum 168 Nursery Rd., Linthicum 169 Maple Rd., Linthicum 170 (I-170)(decommissioned), West Baltimore 170 Camp Meade Rd.-Aviation Blvd.-Telegraph Rd., 2 to 175, Anne Arundel Co. 171 Church St. 2 to 173, Linthicum 172 (unsigned) Arundel Cove Ave., fr Hawkins Pt. Rd. to Coast Guard Yard, Curtis Bay (called Colfax Ave. in '50) 173 Patapsco Ave.-Ft. Smallwood Rd., Brooklyn to Ft. Smallwood 174 Quarterfield Rd., Glen Burnie 175 Annapolis Rd.-Odenton Rd.-Little Pat. Pkwy., Columbia to Millersville 176 Dorsey Rd., 100 (was fr. US 1) to 648, Anne Arundel Co. 177 Mountain Rd., Pasadena 178 General's Hwy., Anne Arundel Co. 179 St. Margarets Rd., Annapolis 180 Old Jefferson Pike, Frederick Co.- also Keep Tryst Rd. nr US 340 180 old number for 175 between 3 and Ft. Meade entrance, Anne Arundel Co. 181 was Bay Ridge Ave.-Compromise St., Annapolis (still written "Route 181" on ADC map) 182 Olney to Glenmont, 108 to 97, Montgomery Co. 183 was Randolph Rd., fr 97 to 650, Montgomery Co. 184 Blair Ave., US 29 to DC line, Silver Spring 185 Connecticut Ave., 97 to DC line, Montgomery Co. 186 Brookville Rd. from 410 to DC line, Bethesda 187 Old Georgetown Rd., loop fr. 355, Montgomery Co. 188 Wilson Lane, Bethesda 189 Falls Rd., Rockville to Great Falls 190 River Rd., Potomac, 112 to DC line 191 Bradley Blvd.-Persimmon Tree Rd., Bethesda to Carderock 192 Metropolitan Av-Capitol View Ave.-Forest Glen Ave., Kensington 193 Univ. Blvd.-Greenbelt Rd., 185 to 202, Montgomery-Prince Georges Co. 193 old number for 185, Montgomery Co. 194 FS Key Hwy.-Woodsboro Pike, Carroll-Frederick Co. (was 71) 194 old number for 787 before taken for above 194 BYPASS Walkersville 195 (I-195) 195 Carroll Ave. bet. 193 & DC line, Takoma Park 196 Old Columbia Pike, Montgomery Co. (fr USGS & Hearne map) 197 Laurel-Bowie Rd.-Collington Rd., Laurel to Bowie 198 from 650 to 32, Montgomery-Anne Arundel Co. 199 was Enterprice Road (now 193), Prince George's County 200 Intercounty Connector (toll), I-370 east to US 1, Montgomery-Prince George's Co. 200 was Larchmont Ave., Capitol Heights (former names: 57th Ave. '56, Crystal Spring Ave. '46) 201 BW Pkwy.-Kenilworth Ave.-Edmonston Ave., Prince Georges Co. 202 Landover Rd.-Largo Rd., Bladensburg to Upper Marlboro 203 was College Ave, College Park 204 was Poplar Ave.-Ray Rd., Takoma Park 205 was Mattawoman-Beantown Rd., US 301 / 5 to 5, Waldorf (now new Rt 5) 205 was Edmonston Ave.-Old Baltimore Pike, Beltsville (some now 201) 206 Konterra Drive, from Old Gunpowder Road east to 212, Laurel/Konterra 206 was 38th Ave., US 1 to Bladensburg Rd. (ALT US 1), Bladensburg 207 was Pennwood Rd. & Cottage Terr. NE from 38th St. parallel to both sides of Amtrak 208 Hamilton St.-38th St.-was Windom-37th-Taylor-34th, Hyattsville 209 was Ager Rd., Hamilton St., 212 to US 1, Hyattsville 210 Indian Head Rd., DC line to Indian Head, Prince Georges-Charles Co. 210 old number for 500 S of 208, Hyattsville 211 Sargent Rd. from 212 to DC line, Chillum Heights 212 Riggs Rd.-Powder Mill Rd., DC line to US 1, Prince Georges Co. 213 (US 213) Old US 213 from US 50 nr. Wye Mills to 273 214 Central Ave.-Mayo Rd.- DC line to Mayo, Prince Georges-Anne Arundel Co. 215 was Lawyers Hill Rd., Elkridge (fr. old Hearne map) 216 Scaggsville Rd.-7th St., Laurel - also Camp Meade Rd. east of Laurel 217 was Landing Rd., old 104 to old 215, Howard Co. 218 Suitland Rd. from 458 to DC Line, Suitland 219 (US 219) 219 9th St. between Oak St. (US 219) & Green St., Oakland (associated with prop. Oakland Bypass) 220 (US 220) 221 Ritchie-Marlboro Rd. (only section near interhcange with I-95/495), Prince Georges Co. 221 was Ritchie-Marlboro Rd., Prince Georges Co. 222 (US 222) 222 from US 1 to 7 (Old US 222 - still US 222 N of US 1), Cecil Co. 223 Woodyard Rd.-Piscataway Rd., 4 to Piscataway nr 210, Prince Georges Co. 224 from 227 along Potomac River to 6 nr. Riverside, Charles Co. 224 was Livingston Rd., Prince Georges Co. 225 Indian Head-La Plata Rd., Charles Co. 226 old number for 227 N of 210 227 Marshall Hall to Marshalls Corner (225), Charles Co. 228 Bennsville Rd.-Berry Rd.,US 301/5 W to 227, Charles Co. 229 Bennsville Rd.-Billingsley Rd., Charles Co. 229 was Morgantown Rd., W off 257, Charles Co. 230 was Mt. Victoria Rd., E off 257, Charles Co. 231 Burnt Store to Pr. Frederick (2/4) acr. Patuxent, Charles-Calvert Co. 232 was Trinity Ch. Rd.-Olivers Shop Rd.-Bryantown Rd.,Charles Co. 233 was Aquasco Rd.-Dr. Bowen Rd., Charles-Calvert Co. 234 Budds Creek Rd., US 301 to 5, Charles-St. Mary's Co. 235 Three Notch Rd., loop E of 5, St. Mary's Co. 236 Thompson Corner Rd., 5 t o234, St. Mary's Co. 237 Chancellors Run Rd., 235 to 246, St. Mary's Co. 237 was Hurry Rd., loop W off 234, St. Mary's Co. 238 Maddox Rd., 234 to 242, Chaptico to Bushwood, St. Mary's Co. 239 was Bushwood Wharf Rd., W off 242, St. Mary's Co. 240 (US 240) (ALT US 240-was 410 to 193 to DC) now 355, I-270 241 was Hatchet Thicket Rd.-Abell Rd., E off 241, St. Mary's Co. 242 Colton Pt. Rd., 5 to Colton Point, St. Mary's Co. 243 Compton Rd., 5 to Compton, St. Mary's Co. 244 Beauvue Rd., 4 to 249, St. Mary's Co. 245 Old Hollywood Rd.- Sotterley Gate Rd., Leonardtown to Hollywood 246 Great Mills Rd., 5 to 235, Lexington Park. 247 Loveville Rd., 5 to 235 nr Morganza, St. Mary's Co. 248 was within Patuxent NAS before WWII 249 Piney Pt. Rd., 5 to St. George Island, St. Mary's Co. 250 was Old Virginia Rd., Worcester Co.-also several off US 13 in area 251 was 58th Ave., Berwyn Heights 251 was Porto Bello Rd., St. Mary's Co. 252 Wynne Rd., W off 5 nr 5/235 split, Charles Co. 253 Mayo Rd., 2 to 214 nr Londontown, Anne Arundel Co. 254 Cobb Island Rd., fr 257 to Cobb Island, Charles Co. 254 was old number for part of 216 in Anne Arundel Co. 255 Owensville Rd.-Galesville Rd., E fr 2, Anne Arundel Co. 256 Deale Rd.-Deale-Churchton Rd., 2 to 468, Anne Aundel Co. 257 Rock Point Rd., E fr US 301, Charles Co. 258 Bay Front Rd., E fr 4 to 256 nr Deale, Anne Arundel Co. 259 Greenock Rd., 4 to 408, Anne Arundel Co. 260 Chesapeake Beach Rd., E fr 4, Anne Arundel-Calvert Co. 261 E&S fr 2 through Chesapeake Beach to 263, Anne Arundel-Calvert Co. 262 Lower Marlboro Rd., W fr 2/4, Calvert Co. 263 Plum Point Rd., E fr 2/4, Calvert Co. 264 Broomes Island Rd., S fr 2/4, Calvert Co. 265 Mackall Rd., E fr 264, Calvert Co. 266 was Sollers Wharf Rd., W off 765, Calvert Co. 267 Baltimore St.-Balden St., loop S of 7, Charlestown, Cecil Co. 268 North St., 279 to 281, Elkton 269 was Liberty Grove Rd., US 1 to 222, Cecil Co. (fr USGS map) 270 (I-270) 270 Furnace Branch Rd., Glen Burnie 271 ce 272 Northeast Rd.-Turkey Point Rd., Elk Neck to PA line 273 Rising Sun Rd.-Telegraph Rd., E fr US 1 to DE line, Cecil Co. also Old Conowingo Rd. 274 Joseph Biggs Mem. Hwy, Rising Sun to 272 nr I-95, Cecil Co. 275 Craigtown Rd., 222 to 276, Cecil Co. 276 Jacob Tome Mem. Hwy., US 1 to 222, Cecil Co. 277 Fletchwood Rd., 316 to 279, Cecil Co. 278 old number for 896, Cecil Co. 279 Newark Rd., 213 nr Elkton to DE line, Cecil Co. 280 old number for 213 N of US 40 before US 213 was decommissioned (now MD 213) 281 Red Hill Rd., 7 to DE line, Elkton 282 Crystal Beach Rd.-Grove Neck Rd.-Cecilton-Warwick Rd. to DE line, Cecil Co. 283 old number for Crystal Beach Rd. when 282 ran to Grove Neck (now 282) 284 Hemphill St., loop off 285, Chesapeake City 285 Biddle St. N side of C&D Canal, E of 213 to DE line, Chesapeake City 286 Bethel Rd., S side of C&D Canal, E of 213 to DE line, Chesapeake City 287 Sandy Island Rd., Goldsboro to DE line, Caroline Co. 288 Crosby Rd., from 20 (eastern) to Crosby, Kent Co. 289 Quaker Neck Rd., S fr 213, Kent Co. 290 fr 300 N to US 301, Queen Anne's-Kent Co. 291 Morgnec Rd.-River Rd.-Millington-Smyrna Rd., fr 213 E to DE line, Kent Co. 292 Still Pond Rd., N fr 213 to Main St., Betterton, Kent Co. 293 1st Ave. fr 292 to Park St., also unidentified rd to west of 292, Betterton 294 Wheeler Ave., Betterton 295 Baltimore-Washington Pkwy., fr 175 N to Baltimore (S of 175 US Park Service maint.) 295 was Howell Pt. Rd. bet 292 & 293, Betterton 296 old number for 293, 1st Avenue, Betterton 297 Worton Rd.-Smithville Rd., W fr 213 to Worton Creek, Kent Co. 298 Fairlee-Still Pond Rd.-Still Pond-Harmony Woods Rd., 20 (eastern) to 213, Kent Co. 299 Massey-Sassafras Rd.-Galena-Sassafras Rd., 313 to US 301, Kent-Cecil Co. 300 Church Hill-Sudlersville Rd.-Sublersville-Smyrna Rd., 213 E to DE line, Queen Anne's Co. 301 (US 301) 301 old number for 290 south of 291, Queen Anne's Co. 302 Barclay Rd., 300 E to DE line, Queen Anne's-Caroline Co. (forms eastenmost part of border) 303 Old Cordova Rd. (309) S of Queen Anne, Talbot Co. 304 fr 312 nr Bridgetown to Corsica Neck, Queen Anne's-Caroline Co. 305 Hope Rd.-Hope-Roe Rd.- Roe-Ingleside Rd., 213 to 19 (now ends in Hope?), Queen Anne's Co. 306 Houston Branch Rd., fr Federalsburg NE to DE line, Caroline Co. 307 Williamsburg Rd.-Academy Ave., Federalsburg to Hurlock 308 S Main St., Federalsburg 309 Starr Rd.-Cordova Rd., 213 to US 50, Queen Anne's-Talbot Co. 310 Cayots-Mt. Pleasant Rd., 213 E to DE line, Cecil Co. 311 Goldsboro-Marydel Rd., 311 NE to DE line, Caroline Co. 312 Ridgely-Bridgetown Rd., 313 to 404, Caroline Co. 313 fr US 50 nr 54 & Mardela Springs N to US 301 nr Unicorn 313 BYPASS Sharptown 314 Greensboro-Whiteleysburg Rd., 480 E to DE line, Caroline Co. 315 Federalsburg Hwy.-Bloomingdale Ave.- N Main St., Liberty Rd., Federalsburg 315 was Railroad Ave., Greensboro ('37->40) 316 Appleton Rd., 279 to 277 (was to 273), Elkton 316 was Bush to Graceton Rd., Harford Co. ('37) 317 E from 313 N of Denton to DE line, Caroline Co. 318 Preston-Federalsburg Rd., fr 16 E to DE line, Caroline-Dorchester Co. (forms pt of line) 319 old number for 318 west of Federalsburg 320 Piney Branch Rd., Takoma Park 321 was Main St., Elkridge 322 Easton Pkwy., loop W of US 50, Easton 322 ho (Elkridge) 323 ho (Elkridge) 324 was Choptank Rd., W off 331, Caroline Co. 325 was Wade Ave., S fr 144 to Spring Grove State Hospital, Catonsville 326 Washington Rd., portion S of Business 5, Leonardtown 327 Firestone Ave S of 7, Perryville 327 was Mitchell Rd., US 301 SW to 225 nr La Plata, Charles Co. 328 Matthewstown Rd.-Easton-Denton Rd., fr. US 50 to BR 404, Easton to Denton 328 ALT Denton 329 Royal Oak Rd., loop S of 33, Talbot Co. 330 Massey-Delaware Line Rd., E of 313, Kent Co. 330 was Kingsville Triangle, Baltimore Co. 331 Loop E of US 50, Easton to Vienna, Talbot-Caroline-Dorchester Co. 332 Central Ave. bet. 214 & DC line, Seat Pleasant 332 was Aurora St., Easton 333 Oxford Rd., Easton to Oxford, Talbot Co. 333 was Harrison St., Easton 334 Port St.-Tred Avon Rd., Easton (directions signed backwards!) 335 Church Creek-Golden Hill Rd.-Hooper Island Rd., S from 16 to Honga, Dorchester Co. 336 Crapo Rd., E from 335 to Lakesville, Dorchester Co. 337 Allentown Rd. N edge of Andrews AFB, Camp Springs 338 was Rowlandsville Rd.-Doctor Jack Rd., US 1/US 222 jct to old 269, Port Deposit 339 Sligo Ave., Silver Spring 339 do 340 (US 340) 341 Race St., from 343 to 16, Cambridge 341 TRUCK Goodwill Ave., Cambridge 342 St. Augustine Rd., 213 to 310, Cecil Co. 343 Washington St.-Cambridge-Hudson Rd., US 50 Cambridge to Hudson, Dorchester Co. 344 Gilroy Rd., 6 to 224, Charles Co. 344 old number for US 50 between Vienna and Cambridge prior to 1940 (Choptank Bridge) 345 was Table Rock Rd.-Wilson Rd., US 50 S to WV line, Garrett Co. 346 Old Ocean City Rd., Worcester Co. 347 Quantico Rd., US 50 to 349, Wicomico Co. 348 Sharptown Rd., from Sharptown nr. 313 to DE line, Wicomico Co. 349 Salisbury-Nanticoke Rd., Wicomico Co. 350 Mt. Hermon Rd., Salisbury to 354, Wicomico Co. 351 Ballenger Creek Pike, US 15/340 to Manor Woods Rd., Frederick Co. 351 former 663 to Little Brown Road, Wicomico co. 352 Whitehaven Rd., loop S of 349, Wicomico Co. 353 Pittsville-Delaware Line Rd., N of 346, Wicomico Co. 354 Willards-Whiton Rd., from 346 to 12, Worcester-Wicomico Co. 355 Wisconsin Ave.-Frederick Rd. (US 240/I-270) Frederick to DC Line 356 was Kingston Lane (Stumpthdasheill Rd.), from MD 413 at Kingston to Co 107 357 was Tulls Corner Rd., SE off 413, Somerset Co. 358 was Jacksonville Rd.-Plantation Ave., N off 413 to Janes Island State Park, Somerset Co. 359 Bypass Rd. W of US 113, Pocomoke City, was also in Crisfield 359 was Boone Rd. SW off 380 , Crisfield 360 was Sackertown Rd., SW off 380, Crisfield 361 Fairmount Rd., W from 413 to Manokin, Somerset Co. 362 Mt. Vernon Rd., W from US 13, Somerset Co. 363 Deal Island Rd., Princess Anne to Deal Island 364 Dividing Creek Rd., W of Pocomoke St. Forest, Worcester-Somerset Co. (ADC shows bridge out) 365 Public Landing Rd., Worcester Co. 366 Stockton Rd.-George Island Landing Rd., E of US 13 nr. Pocomoke City, Worcester Co. 367 Bishopville Rd.,US 113 to DE line, Worcester Co. 368 Saint Martins Neck Rd., 367 to Ames Rd., Bishopville, Worcester Co. (unsigned) 369 was Old Bachman Valley Rd., Carroll Co. (fr USGS map) typo of 569? 369 was off 113 near Basket Switch, Worcester Co. 370 (I-370) 370 Unionville Rd., N from 33 over Miles River, Talbot Co. 371 Cedar Hall Rd., from Princess Anne off 675 to Pocomoke River, Somerset Co. 372 Wilkens Ave., US 1 to 166, Catonsville 373 Accokeek Rd., 5 to 210, Prince Georges Co. 374 Libertytown Rd.-Burbage Crossing Rd., 354 to 818, Worcester-Wicomico Co. 375 was Commerce Street between N Main and Broad Streets, Berlin 376 Bay St., Assateague Rd., Berlin to 611, Worcester Co. 377 Williams St., Berlin 378 was Baltimore Ave., Ocean City (now northbound 528) 379 sm 380 Byrdtown Rd., S off 413 to Byrdtown, Somerset Co. 381 Brandywine Rd., US 301 to 321, was also old 5, Prince Georges-Charles Co. 382 Croom Rd.,-Davis Shop Rd., US 301 to 381, Prince Georges Co. 383 Broad Run Rd.-Jefferson Rd., 17 to 180, Frederick Co. 384 Colesville Rd. bet US 29 & 16th St. (390), Silver Spring 385 old number for Whithaven Rd. portion of current 352 386 was Benfield Rd., Anne Arundel Co. 387 Spa Rd., Annapolis S of Forest Dr. - was also N of Forest Dr. 388 E. Antioch Ave.-W. Post Office Rd., off US 13 E of Princess Anne 389 was Addison Rd from 704 S to 214 390 16th St., between 97 & DC line, Silver Spring 391 was Seminary Rd.-Dale Dr., 192 to 320, Silver Spring 392 from 331 nr Hurlock E to DE line, Reliance 393 South River Rd., off 2 bet. 450 & 665, Annapolis (from NGRA & ADC) 394 was Market St., loop W of US 113, Snow Hill (signed Business US 113) 394 qa 394 ga 395 (I-395) 395 was Naves Cross Rd., Cumberland, when US 220 ran through town (now US 220 to I-68) 396 Massachusetts Ave., Bethesda 397 was Aireys Road, SE off old US 50, Cambridge 398 was parallel W of 63 N of Williamsport, Washington Co. 399 was Howard Chapel Rd.-Long Corner Rd., Montgomery-Howard Co. 400 was Mt. Wilson La. 140 to former Mt. Wilson St. Hosp., Garrison 401 was Stringtown Rd., Butler 402 Dares Beach Rd., E of 2/4 nr. Prince Frederick, Calvert Co. 403 was Level Rd., Harford Co.? 403 old number for 410 bet. 500 & US 1 404 From US 50 E around Denton to DE line, Queen Anne's-Talbot (forms line)-Caroline Co. 404 ALT Queen Anne-Hillsboro 404 BUSINESS Denton 404 was nr. current 8, Kent Island? 405 Price Station Rd., 19 S to 304, Queen Anne's Co. 406 old number for 667 bet Hudsons Corner & US 13 407 Marston Rd., 27 to 31, Carroll Co. 408 Mt. Zion-Marlboro Rd., 2 to 4, Calvert Co. 408 old number for 755 south of 7 409 was Freeland Rd., 45 to NCRR, Maryland Line 410 East-West Hwy., 355 to 450 (proposed to 704) Prince George's-Montgomery Co. 411 was Rhode Island Ave., Bladensburg (co-signed with US 1 in 1940s) 412 Riverdale Rd. parallel to 410, Riverdale 413 US 13 to Crisfield, Somerset Co. 414 Oxon Hill Rd.-St. Barnabas Rd., 210 to 458, Prince George's Co. 415 was Scotland Beach Rd., E off 5 nr Pt. Lookout 416 old number for 4 in NW Calvert Co. 417 old number for 669, Garrett Co. 418 Ringgold Pike, 60 NE to PA line, Washington Co. 419 was Martinsburg Rd.-Dickerson Rd., fr 107 to 109, Montgomery Co. 420 was Brink Rd., 27 to 108, Montgomery Co. (fr USGS & Hearne map) 421 was Travilah Rd., bet 28 & 190, Montgomery Co. 422 Bayard Rd., W off 2, Anne Arundel Co. 423 Fairhaven Rd., E off 2 to Fairhaven Cliff, Anne Arundel Co. 424 Davidsonville Rd., 3 SE to 214, Anne Arundel Co. 425 Mason Springs-Ironsides-Riverside Rd., 224 to 6, Charles Co. 426 was Liverpool Pt. Rd., bet 6 & 224, Charles Co. 427 Chapel Pt. Rd., W of US 301 to Chapel Pt. State Park, Charles Co. 428 was Penns Hill Rd, from 6 south to 234, Charles Co. 429 was Popes Creek Rd., SW off US 301, Charles Co. 430 Metzerott Rd. from US 1 to 193, College Park 431 was Cherryfield Rd., SW off old 244, St. Mary's Co. 431 sm 432 Glen Oak Rd., W off 732 NE of I-95/32 interchange, Howard Co. 432 was Kingsley Rd.-Hawkes Rd., Montgomery Co. 433 was Smithville Rd., Caroline Co. 433 was Prince Georges Ave, Beltsville (on 1940 map-gone by '46) 434 Pontiac St.-57th Ave.-Berwyn Rd., Berwyn Heights 435 Taylor Ave., Annapolis (signed) 436 Ridgely Ave. (Revell St.), W. Annapolis (signed) 436 was Annapolis St., W. Annapolis 437 was Severn Ave., W. Annapolis 438 was Annapolis St.-Melvin Ave., off 435, Annapolis 438 was Revell St., W. Annapolis (current 436) 439 Old York Rd., 45 to 23, Baltimore-Harford Co. 440 Dublin Rd., US 1 W to 543, Harford Co. 441 was Providence Rd., W off 213, Cecil Co. 442 was Stoneton La.-Royal Swan Rd., E off to 292, Kent Co. 443 was Still Pond Neck Rd. off 292, Kent Co. 444 Kentmore Park Rd. N of 213, Kent Co. (was all) 445 Eastern Neck Island Rd., S of 21, Kent Co. 446 Broad Neck Rd., S off 20 (eastern), Kent Co. 447 was Morgnec Rd., Kent Co., also later was through Locust Grove bet 213 & 444 448 was Turners Creek Rd. nr Kennedyville, Kent Co. 449 was Aikin Road, 2 sections of old US/MD 222, Perryville 450 Old US 50, US 1 to Annapolis Rd.-Defense Hwy. through Annapolis to S end of Ritchie Hwy. 450 old number for 16 from 313-404 east to DE line, Andersontown 451 Old Claiborne Rd., N off 33, Talbot Co.-was all of 33 S to Tilghman 452 Friendship Rd., US 50 to US 113, Berlin 453 was Woodmont Rd., S off Scenic US 40, Washington Co. 454 Crown Stone Rd., Templeville to Marydel, Caroline Co. 455 old number for 54 west portion from 313 to DE line 456 Del Rhodes Ave., Queenstown (signed n-s) 457 was Knife Box Rd., 313 nr Greensboro SE to 317 nr DE line, Caroline Co. 458 Silver Hill Rd., Suitland 459 was Tuxedo Rd.-Cheverly Ave., Cheverly 460 Hall Hwy., W off 358 in Crisfield 461 was Lake Fanny Rd., S off BUS US 1 over Winters Run, Bel Air 462 Paradise Rd. 155 to 132 N of Aberdeen 463 Main St., Parkton - unsigned but "MD RT 463" on green sign 464 Olive School Rd.-Souder Rd., 17 to US 15, Frederick Co. 465 was Herald Harbor Rd. E off 178, Anne Arundel Co. 466 was Old Rolling Rd., Relay 467 old number for 54, Mardela Springs 468 Muddy Creek Rd.-Shady Side Rd., S off 214, Anne Arundel Co. 469 was Chapel Pt. Rd., S off 6, Charles Co. 470 Oakley Rd., loop E of 242, St. Mary's Co. 471 Indian Bridge Rd., 4 to 5, St. Mary's Co. 472 Sandgates Rd., E off 235, St. Mary's Co. 473 was Fairview Rd., N off 273, Cecil Co. 474 was Hobbs Rd.-Andersontown Rd., loop E off 313 nr Denton 475 was East St., Frederick, part of MD 85 interchange construction (never signed) 475 old number for 358, Somerset Co. (?) 476 was Morgan Station Rd, off 144 w/bridge over I-70, Howard Co. 477 was Old Washington Blvd., Elkridge 478 Knoxville Rd., W of Brunswick 478 wa 479 was Western Shore Dr. N fr US 50 to former Eastern Shore St. Hosp., Cambridge (road gone-now part of Hyatt resort property) 480 Hillsboro-Ridgely-Greensboro Rd., Caroline Co. 481 Damsontown Rd, 309 to 204, Queen Annes Co. 482 Hampstead-Mexico Rd., 27 to Business 30, Carroll Co. 483 (old 174) Old Camp Meade Rd.-Severn Rd. nr. 174 & Amtrak br. (from 1985 Champion) 484 was Bicknell Rd., bet. 224 & 425, Charles Co. 485 Saathoff Rd, loop S off 404, Caroline Co. 485A Shady Oak La., off E end of 485 (signed as 485) 486 do (Vienna-1930s) 487 do (Vienna-1930s) 488 La Plata-Bryantown Rd., 6 to 5, Charles Co. 489 Park Hall Rd., Bet. 5 & 235, St. Mary's Co. 489 cl (Whiteleysburg) 490 Union St. S of 7, Havre de Grace (signed) 491 Raven Rock Rd., 64 to 550, South Mtn., Washington-Frederick Co. 491 old number for 425 S of 6 492 pg 492 old number for part of 302 forming Queen Annes-Caroline border 493 was Old Orems Rd., Middle River 494 Fairview Rd.,63 W to PA line, Washington Co. 495 (I-495) 495 Bittinger Rd.-Swanton Rd. Alt US 40 to 135,Garrett Co. 496 Bachmans Valley Rd., Carroll Co. 497 Cove Point Rd. E from 2/4, Calvert Co. 498 Lighthouse Rd., W off 249, Piney Pt., St. Mary's Co. 499 was Manor Rd., bet 238 & 234, St. Mary's Co. 500 Queens Chapel Rd., Hyattsville 501 Chillum Rd. bet 212 & 500, Hyattsville 502 was Greenbackville Rd., S off 366 to VA line, Worcester Co. 503 old number for current 760, Calvert Co. 504 was Olivet Rd., Calvert Co. 505 was Coster Rd., W fr 765 across 2/4, Calvert Co. 506 Bowens-Sixes Rd, 2/4 W to 508, Calvert Co. 507 was Stoakley Rd.-Leitchs Rd., W off 2/4, Calvert Co. 508 Adelina Rd., 231 to 506, Calvert Co. 509 Governors Run Rd., E off 2/4, Calvert Co. 510 was Huntingtown Rd., NW off 524 to 262, Calvert Co. 511 was Island Point Rd., Calvert Co. 512 was Williams Wharf Rd., W off 264, Calvert Co. 513 Cedar La. US 13 to Bus. US 13, Fruitland 513 was Spears Hill Rd., NW off 213, Cecil Co. 513 was Saratoga Ave., now part of 320, Takoma Park 514 Flatland Rd.-Porters Grove-Hanesville Rd., 20 (east) to 298, Kent Co. 515 was Second St., Silver Spring 516 was Franklin Ave. bet. 193 & US 29, Silver Spring 517 old number for 136 W of 24 518 First St., Queen Anne 519 was Greenspring Rd. N of Dover Rd., Baltimore Co. 520 Whites Neck Rd.-Bailey Rd., S off 239, St. Mary's Co. 521 Huntingtown Rd.-Hunting Creek Rd., W off 2/4, Calvert Co. 522 (US 522) 523 was Chaneyville Rd., W off 2/4, Calvert Co., was also Warfordsburg Rd., N of Hancock 524 loop W off 2/4 nr. Huntingtown, Calvert Co. 524 Old Town Rd., loop W off 2/4, Huntingtown 525 was Ferry Landing Rd., W off 4, Calvert Co. 526 was Penna. Ave., Westminster - was also Old US 140 E of Westminster 527 was Bonnie View La., north off US 1, Elkridge (0.1 mi.) 528 Coastal Hwy., Ocean City 529 Old Loretto Rd., off US 13 near UMES, Somerset Co. was also Allen Rd. N to Salisbury 530 was small stub off 213 in Chestertown 531 was Reliance-Galestown Rd. 392 to 313 along DE line, Dorchester Co. 532 was Watersville Rd., 27 to 144, Carroll-Howard Co. 533 was Cobb Island Rd., Charles Co. (now 254) 534 was Richie Rd, Forestville Rd, Prince George's Co. 535 was Brookview St, old 14 over Marshyhope Creek, Dorchester Co. 535 A Auth Rd E off 5 (forms part of ramp), Prince George's Co 536 was Cedar Pt. Neck Rd., S off 6, Charles Co. 537 Basil Rd. off 213, S of Chesapeake City 537 was old number for northern part of 495, Garrett Co. 539 was old number for 108 between 104 & 29, Howard Co. 540 was N off 320 to 410, Takoma Park 541 was Tyaskin Rd., N off 349, Wicomico Co. 542 Loch Raven Blvd.-The Alameda, Baltimore to I-695 & old 567 543 Ady Rd.-Hickory Rd.-Riverside Pkwy., Harford Co. 544 McGinnes Rd., 213 to 313/US 301, Queen Anne's Co. 545 Blue Ball Rd., Cecil Co. 546 Finzel Rd., N off I-68, Garrett Co. 547 Strathmore Ave.-Knowles Ave., 355 to 185, Kensington 548 was Upper Ferry Rd., 349 S to Allen Rd. (was 529) w/ferry across Wicomico, Wicomico Co. 549 was Fort Washington Rd., W off old 224 to Fort Washington, Prince George's Co. 550 fr. 26 NW to PA line, Frederick-Washington Co. 551 was Washington St., Cambridge (old 16) 552 Dominion Rd., S of 18 on Kent Island (2.1 mi.) 553 South River Rd. nr South River Bridge off 2, Anne Arundel Co. 554 old number for Old Severn Rd. (now 174) West of 170 555 was Wilson Rd., bet 263 & 402, Calvert Co. 556 was N from 4 to former 221, Ritchie, Prince George's Co. 557 was Brookes Ave, E off 355 Gaithersburg 558 was Bel Alton-Newtown Rd., US 301 NE to 6, Charles Co. 559 was Gorsuch Rd., from 140 NE to WMRR tracks, Carroll Co. 560 Gorman Rd., 135 to US 50, Garrett Co. 561 Hassengers Corner Rd., 213 to 298, Kent Co. 562 Troyer Rd. S of 138-Old York Rd., nr Monkton 563 old number for 224 S of 344 along Potomac shore 564 Lanham-Severn Rd. from 450 to 197 565 Old Trappe Rd. loop W of US 50-also S. Washington St., Easton, Talbot Co. 566 Still Pond-Harmony Woods Rd., bet. 292 & 298 - was also east to 213 (now 298) 567 was Cromwell Bridge Rd. from aqueduct to Cub Hill Rd., Towson 568 Hatchery Rd., 367 to DE line nr 368, Bishopville, Worcester Co. (unsigned) 569 was Old Bachman Valley Rd., 97 to 496 (also 369?) 570 New number for former I-70 stub inside I-695 beltway to Parn & Ride 570 was O'Brecht Rd., W of Sykesville to 97, also old number for 97 N of same, Carroll Co. 571 was Tracet Rd., Frederick Co. 572 was Gapland Rd., E fr 67, Washington Co. 573 was Bartholow Rd, small piece near MD 32, Eldersburg 574 was Clarks Landing Rd., NE off 235, St. Mary's Co. 575 Worcester Hwy (old US 113), Worcester Co. 575 was Pond Woods Rd., E off 2/4 to 261, Calvert co. 576 was Dunn Swamp Rd.-Colona Rd., loop off 371, Worcester Co. 577 from 313 to Reliance, forms Caroline-Dorchester Co. line 578 Bethlehem-Harmony Rd., fr 16 to 331, Caroline Co. 579 Bozman-Neavitt Rd., from 33 S to Neavitt, Talbot Co. 580 so 581 was Keysville-Frederick County Rd., Keysville-Bruceville Rd, Keysville, Carroll Co. 582 was Zion Rd., old 420 S to 108, Montgomery Co. 583 was Jennings Chapel Rd., 94 to 97, Howard Co. 584 unidentified road loop W off 5 in St. Mary's City 585 was Airport Rd., 12 to 350 E of Salisbury 586 Veirs Mill Rd., Montgomery Co. 587 Wilson Point Rd. from 150 to Dogwood Dr. (was all), Middle River 588 Golden Ring Rd.-Kenwood Ave from 7 to Lillian Holt, Rosedale 589 Race Track Rd., US 50 to US 113, Ocean Pines 590 (old US 1) was Forge Hill Rd., loop S off US 1, Harford Co. 591 (old US 1) loop S off US 1, Cecil Co. 592 was Half Mile Loop, (old US 1?), Rising Sun 593 was Brunett Ave., Montgomery Co. 594 was Wayne Ave., Montgomery Co. 595 was Bonifant Ave., Montgomery Co. 597 was Forest Glen Rd, old number for 192 east of 97, Montgomery Co. 597 ho 598 was Old Princess Anne Rd., loop E of US 13 S of Princess Anne 599 (old 493) was Baker Ave., Old Orems Rd., Middle River 600 (old 150) was Old Eastern Ave., Essex-Middle River (from old Hearne & USGS map) 601 was Harrison Blvd., Middle River 602 Old number for 198 east of Laurel 603 mo 604 was Watkins Rd., 27 to 124, Montgomery Co. 605 Albany Ave., Takoma Park 606 Old number for 304 W of Centreville 607 Hog Neck Rd. nr end of 100 & 177, Anne Arundel Co. 608 was Arrington Rd.-Raincliffe Rd. E of Sykesville 609 Old number for 28 E of Norbeck-was E to 182, Montgomery Co. (fr USGS map) 610 Whaleyville Rd., Worcester Co. 611 Stephen Decatur Hwy., Worcester Co. 612 was Harney Rd., PA Line south to Harney, Carroll Co. 613 Old number for 261, Anne Arundel Co. 614 Goldsboro Rd., Bethesda 615 Heavenly Acres Ridge Rd.-also parallel rd. of I-70/US 40, Washington Co. 616 was Broadfording Rd.-Gossard Mill Rd., 58 to 494 Washington Co. 617 old 16 near Beauchamp Branch Rd/Williston Rd. Caroline Co. 617 was American Corner Rd. bet 621 & 318, Caroline Co. 618 was Detour Rd., fr 77 to 194, Frederick Co. 619 6th St., Denton (old 313 before bypass) 619 was Quaker Hill Rd.-McKinstry Mill Rd., SE off 75, Union Bridge 620 was Trevanion Rd., W of 84 to Taneytown 621 Grove-Agner Rd., 16 to 313, Caroline Co. 622 was Stone Chapel Rd., bet 27 & 31, Carroll Co. 623 Flintville Rd.-Castleton Rd., fr US 1 at 161 jct N to PA line, Harford Co. 624 Constitution Rd.-Graceton Rd., 165 to (forms) PA line, Harford Co. 625 Leonardtown Rd, number for old 5, Hughesville 625A Foster Lane off Gallant Green Rd, Hughesville 625 fr (along 550 nr Pen Mar) 626 W. Wharf Rd., West Ocean City, also small road S off east end of 707 (fr 1988 SHA) 627 Oriole Rd., S from 363 to Oriole, Somerset Co. 628 Rice Rd., Western Run Rd. to PA line, Washington Co. 629 Exline Rd., Washington Co. 630 was American Corner Rd., N of 621 to 16, Caroline Co. 630 was Baust Church Rd. S off 140 (now part of 84), Carroll Co. 631 Old Brandywine Rd., parallel E of 5 S off 373 nr. US 301/5 jct, T.B. (fr 1998 SHA) 632 Maryland Ave., Downsville Pike, fr. Hagerstown SW to 63, Washington Co. 633 Unionville Rd., loop S off 26, Unionville, Frederick Co. 634 Reliance Ave., Federalsburg 635 was Oakington Rd., S off 132, Aberdeen 636 Warrior Dr, US 220 to 53, Cresaptown, Allegany Co. 637 Naylor Rd. bet. 5 & DC line, Suitland 638 Parkersburg Rd., 36 to Alt. US 40 E of Frostburg 639 Willowbrook Rd., Williams Rd., I-68 S to MD 51, Cumberland 639 was White Church-Steyer Rd., from 560 E to Kearney, Garrett Co. 640 off US 13 nr Eastern Correctional Institution, Somerset Co. 640 fr 641 was Middleburg Rd.-Simpsons Mill Rd., 77 to 75 642 Greenland Beach Rd, small stub off 173 near Stony Creek Bridge, Anne Arundel Co. 643 was Sulphur Spring Rd., Arbutus 644 Ridge Rd. (Francis Ave.), overpass over US 1 & Amtrak, Arbutus 645 Old Dorsey Rd. off 176 nr 170 jct. (from 1985 Champion) 646 Prospect Rd., Harford Co. 646 was Thurston Rd., 80 S to 109, Frederick-Montgomery Co. 647 was Whiskey Bottom Rd., near R/R bridge, Laurel 648 Old Baltimore-Annapolis Blvd. (old 2), Baltimore to Annapolis 649 aa? 650 New Hampshire Ave., Montgomery Co. 651 was North Bend Rd. W of Rocks St. Park, Harford Co. (fr USGS map) 652 (old 170) Old Telegraph Rd., Harmans 653 old number for 390 from 410 S to DC line 654 al 655 (old 97) several parallel to 97, Montgomery Co. 655 al 656 Friels Rd., 18 to 456, S of Queenstown (was numbered 456 as well) (signed e-w) 657 Douglas Ave, between Lonaconing western limit and Allegany-Garrett Co line 658 Vocke Rd, LaVale (signed at traffic lights, no reassurance markers) 659 was Stonestreet Ave., Baltimore Rd. (old 676) to road end, Rockville 660 Dodge St., section between MD 28 and MD 355, Rockville 661 was Quaker Neck Landing Rd.,from 289 to Quaker Neck Landing, Kent Co. 662 off US 50 (several) from Wye Mills to Easton (old US 213?) Queen Anne's-Talbot Co. 662 was old number for 448 north of 213, Kent Co. 663 was Camden Ave., Salisbury 664 was Wilkins La., S from 289, Kent Co. 665 Aris T. Allen Blvd.-Forest Dr., Annapolis 665 old number for first parts of new US 40, Ellicott City (1940s) 666 (old 193) was St. Paul St., Armory Ave., Howard Ave., Kensington 667 (old 413) US 13 to Crisfield, Somerset Co. 668 (old 30) was Old Hanover Rd., Boring (from Hearne Bros wall map) 669 Springs Rd., fr Alt. US 40 in Grantsville to PA line, Garrett Co. 669 Benevola Church Rd. fr Alt US 40 to 66, Washington Co. (fr. ADC map) 670 Lillian St. from US 50 to 347, Wicomico Co. 671 was Taylor Landing Rd., E off 12, Worcester Co. 672 Greenbury Point Rd., off 648 east of Naval Academy Bridge, Annapolis 673 was Costen Rd., loop E off US 13, Somerset Co., also between US 13 & 413 674 Sharp St., off 20 (eastern), Rock Hall 675 Old US 13 nr. Delmar & Pocomoke City 675 cr 675 Bi-State Blvd, Wicomico Co. and Somerset Ave, Princess Anne 676 was Baltimore Rd, between 28 & 355, Rockville 677 was Odenton Rd., Odenton 678 was Deer Park Rd., bet 32 & 91, Carroll Co. 679 cr 680 was Gillis Falls Rd., bet. 27 & 94, Carroll Co. 681 was Hughes Shop Rd., N off 140, Carroll Co. 682 was N. Church St., 86 N to PA line, Lineboro 683 was Poole Rd., SE off 140, Westminster 684 was Broadbranch Rd., 186 S to DC line, Chevy Chase 686 was Hanover St., off 2 near BC-AA line 687 was Gillis Rd., bet. 27 & 94, Carroll Co. (parallel N of 680 above) 688 was Redland Rd. bet. 355 & 115, Montgomery Co. 690 ce 690 al 691 Old number for US 40 SE of Hagerstown, 1946 (during construction?) 692 al 693 Old route 5, loop W of 5, Charlotte Hall, St. Mary's Co. 694 Agricultural Farm Rd (?) across from Cook Rd intersection with 212, Beltsville 695 (I-695) 695 Broening Hwy., Dundalk - was all of Beltway S&E of 95 - N&W was I-695 695 was Addison Rd, small piece nr DC line, Cheverly (1950s) 696 was Perryhawkin Rd., SE fr 388 to Cokesbury, Somerset Co. 697 was Old Farmington Rd, old 274 nr Bayview, Cecil Co. 698 ke 699 old 272 nr Amtrak crossing, North East 700 Martin Blvd., Middle River 701 Howard Johnson Rd., parallel E of US 301 just N of US 301/291 jct. 701 was Sundown Rd., 108 to 650, Montgomery Co. 702 Southeast Frwy./Blvd., Essex 702 was Jones Bridge Rd., E off 355, Bethesda 703 Klej Grange Rd, small part off 113 SW of Snow Hill 703 was Race Track Rd., Bowie 704 MLK Blvd., Prince Georges Co. 705 Old Berlin-Lewis Store Rd., Worcester Co. 705 was Croom Airport Rd., E off 382, Prince George's Co. 706 old number for part of 648 between 915 & 177 before 100 built (fr 1970 SRC) 707 Grays Corner Rd.-Old Bridge Rd., W. Ocean City 708 was 1st St., Ocean City 709 was Green Ridge Rd., N off Scenic US 40 to PA line, Allegany Co. 710 Ordnance Rd., Glen Burnie 711 Arundel Corp Rd. (Old Ordnance Rd.), was also Blades Rd., Glen Burnie 711 old sections of 268, former Amtrak grade crossing, Elkton 712 Hermanville Rd., 235 to Patuxent NAS, Lexington Park 713 Ridge Rd., nr Ft. Meade 714 across from Westphalia Rd intersection with MD 4 south to MD 337 near AAFB 715 Short Rd., from US 40 to APG, Aberdeen (old name: Boothby Hill Rd.) 716 (old 202) was Old Landover Rd., loop N of 202 nr US 50, Cheverly 717 Water St. from 725 south to PG Equestrian Ctr., Upper Marlboro 717 al 718 was Sparrows Point Rd., Edgemere 719 ga 720 off 818 near northern US 113 jct. at R/R tracks, Berlin 721 was C St., E off 147 to Joppa Rd. (old 148), Carney 722 (old 235) sm 723 Old Jessup Rd., loop E off 175 nr Howard-AA border, Jessup 724 al 725 Marlboro Pike, Upper Marlboro 726 Green Landing Rd between old and current 4, Prince George's Co. 726 al 727 (old 268) at Amtrak bridge, Elkton 728 al 729 al 730 al 731 Old US 50, Vienna - (only rect. green sign "ROUTE 731" - decommisioned?) 731 al 732 Old Guilford Rd. (old 32) 732 al 733 eastern approach to abandoned bridge north of Alt US 40, Grantsville 733A small stub across Alt US 40 from MD 946, Frostburg 734 wa 735 wa (Hancock) 736 Braddock Rd, between I-68 to Center St, Frostburg 736 was John St., Westminster, 1 block outside town limits (fr 1950 SRC) 739 al 740 was Sullivan Rd/Wimert Ave (.11 mile near 140), Westminster 740A was Hahn Rd, Westminster 740 US 40, Wilston to road end, Washington Co. 741 small stub off US 40 Alt, Washington Co. 742 fr 742 First Ave.-Maple St., Friendsville (fr 1998 SHA) 743 Old National Pike, between 36 and Alt US 40 just west of 55, Allegany Co. 744 was Dorchester Ave., parallel W of US 50, Cambridge 745 wa 746 Old Falls Rd. (25) near Jones Falls/Light Rail, Baltimore Co. (fr 1991 SHA) 747 wa 748 wa 749 cv (Solomons Island) 750 Bucktown Rd., loop off US 50 nr SHA, E of Cambridge (from personal obs.) 750 cv 751 old number for Chesapeake Beach Rd. SE of 2 nr. Owings, Calvert Co. (now part of 260) 752 cv 753 was Street Rd.-Davis Rd., 24 to 165, Harford Co. 754 was Highland Road, Harford Co. 755 Old Emmorton Rd.-Van Bibber Rd., Abingdon 756 Old Snow Hill Rd., Pocomoke City 757 (old 165) Harford Co. 758 Corporate Center Dr, from Stoney Run Rd to Ridge Rd, Hanover, Anne Arundel Co. 758 wi 759 qa 759B unidentified rd. nr. 18 at Castle Marina Rd., Stevensville (759B) (1998 SHA) 760 Olivet Rd.-Rousby Hall Rd., Chesapeake Ranch Estates 760 was Van Bibber Rd between 7 and Walton Rd, Edgewood 761 Old Plum Point Rd., loop off 263, Calvert Co. 761 was Old Crain Hwy. nr Upper Marlboro 762 from 170 to 162 NE of BWI 763 Superior St., off 155 nr US 40, Havre de Grace (signed) 764 Breezy Point Rd., E off 261, Calvert Co. 765 (old 2/4) Multiple rds off 2/4, Calvert Co. 766 was Avenel Rd., loop W of 650, Montgomery Co. 768 Dares Wharf Rd., off 402, Dares Beach, Calvert co. 769 frontages east of 201, Bladensburg 770 was Conley St. between 151 & 20 north of 150, Eastpoint 771 was Nine Mile Loop, 3 sections off 144, east of Ellicott City in Baltimore Co. 772 ta 773 was nr 2/100 jct, N off Kellington Dr. at Hammock La. (rd no longer exists?) 775 was Cox Rd., loop S of 260, Chesapeake Beach 776 Railroad Ave., Ridgely (unsigned exc. on some street name markers) 778 (old 2) Old Solomons Island Rd. (several), Anne Arundel Co. 779 Old Quarterfield Rd, off MD 174 east of I-97 interchange 779A Old Quarterfield Rd, off MD 174 west of I-97 interchange 781 Delancy Rd., from 281 to 40 nr. Delaware line, Elkton (signed) 783 Riverview Ave., E off 436 S of US 50 overpass, Annapolis 784 Acorn Dr.-Pafel Rd., E off 436 N of US 50 overpass, Annapolis 785 Acorn Dr., E off 784 N of US 50/436 overpass, Annapolis 786 was South Winchester Rd., parallel S of US 50 E of Severn River Bridge 787 Flower Ave. bet. 195 & 516, Takoma Park 788 Old Forest Dr., SE off 387 to Forest Ave (formerly 665), Annapolis 788 was Forest Hills Ave., Annapolis 790 Old 4 W of 2/4 split, also Old Muddy Creek Rd. & others off 468, Anne Arundel Co. 793 was Old Davidsonville Rd., parallel N of 424 nr US 50 jct, Anne Arundel Co. 794 SE ramp of 4-258 exit, Anne Arundel Co. (fr ADC map) 795 (I-795) 795 Maryland Ave. (drawbridge only), Cambridge 796 aa 797 State Circle, Annapolis (around State Capitol) 798 Old Generals Hwy. (178), Crownsville 800 Watson La. nr 75, Linwood (signed) 802 Batts Neck Rd., loop E of 8, Kent Island, Queen Anne's Co. (signed) 803 wa 804 Old 64 nr Cavetown & Chewsville, Washington Co. 805 Leiter St., off 60, Leitersburg 806 Old US 15, Frederick Co. 807 (old US 220) Bedford Rd., old US 220 between Naves Cross Rd. and Cumberland city line 808 (old 27) Main St., Mount Airy - also assorted rds near Westminster 809 ce 810 frontages of MD 210, Prince George's Co. 811 was Wilson Avenue, S off 273, Rising Sun 812 (old 272) ce 813F Twiford Rd., off 313, Sharptown 813 (old 273) ce 814 Penterra Manor La., parallel E off 550 just S of Creagerstown (bridge out at Monocacy) 815 Old Quantico Rd., loop off 349, Salisbury (signed) 817 (old 16) Old Federalsburg-Preston Rd. (16/318) SE of Preston 818 (old US 113) Main St., Berlin 819 Reids Grove Rd, loop off 331, Dorchester Co. 820 Castle Hall Rd., loop N off MD 313, Caroline Co. 821 Main St., Marydel 822 UMES Blvd, Princess Anne 823 was Belle Hill Rd., east from 316 to 279, Cecil Co. 824 Bainbridge Rd., off 222 nr I-95 jct, Perryville (signed) 825 Oakland Dr., loop N off 135 Mountain Lake Park, Garrett Co. 826 old US 219, off 825, Garrett Co. (fr 1988 SHA) 827 nr. I-95/222 exit, Perryville (heard on traffic report c. 1991) 828 ga 830 qa 830 al 831 (old 36) small road parallel W of 36 nr US 40 jct NW of Cumberland 831J Main St. (old 31) from High St. to Union Bridge Rd., Carroll Co. 832 (old 32) Old Taneytown Pike, Carroll Co. 833 (old 88) Black Rock Rd., Hampstead (signed) 834 U-turn on US 301 south of MD 405, Queen Anne's Co. 835 Love Pt. Rd., Kent Narrows Rd. (old 18), Kent Island 835A Thompson Creek Service Rd., parallel S of US 50/301, E off 8, Stevensville (signed!) 836 qa 837 S. Church St., 313 to 300, Sudlersville 838 Wye Island Rd., Queen Anne's Co. (fr 1988 SHA) 839 unidentified road off Washington St. nr Easton Pkwy adjacent to cemetery, Easton 840 ta (Easton) 841 May Port Rd., S. off 579, Talbot Co. 842 wa 843 wa (Hagerstown) 844 Cavetown Church Rd., Smithsburg 845 (old 34) Main St., Keedysville, Washington Co. 846 Barkdoll Rd., bet 418 & 847, Ringgold, Washington Co. 847 (old 64) (several) Washington Co. 848 wa 849 Leisters Church Rd. bet. 482 & 852, Mexico (unsigned) (was part of 87) 850 (old 26) Old Liberty Rd., various along 26 851 (old 32) Main St. Sykesville, also several rds east of & parallel to 32 852 (old 31) Old New Windsor Rd. off 31, Old Manchester Rd. off 27, nr Westminster 853 (old 71/194) several rds nr & parallel to 194, Carroll Co. 854 (old 97) Old Washington Rd. & several rds west of & parallel to 97, Carroll Co. 855 loop off 213, Kennedyville 856 Old Lynch Rd, loop off 298, Kent Co. 857 ke 858 (old 67) several, Washington Co. 859 was Hadaway Dr., Chestertown 860 Old 235 nr 235/489 jct, St. Mary's Co. 861 sm 862 sm 863 sm 864 Bessicks Corner Rd, loop off 292, Still Pond 865 (old 224) Marbury Run Rd, plus 2 old alignments to south of Marbury 866 was Pennies Rd, between 224 and 225 at intersection of the two 867 was Bunker Hill Rd, loop S off 228, Berry 867 was small piece parallel N of 228 W of US 301 in Waldorf 867 sm 868 sm 869 was Hilltop Rd/Welcome Rd, loops N off 6. 869 small road N off 6 just W of jct with Annapolis Woods Rd., Charles Co. 870 fr 870 was small road S off 383 W of Catoctin Creek Bridge 871 Rosemont Rd., bet. 17 & 79, Rosemont, Frederick Co. 872 fr 872A unknown but should be E of 872 B 872B Brentland Rd., W off Catholic Church Rd., parallel N of US 340 872C small road E off South Mountain Rd., N of & parallel to US 340, Washington Co. 873 fr 874 Loop W off 75 N of New Market, Frederick Co. 875 was Whates La., parallel E of US 15, Frederick Co. 876 fr 877 W. Baldwin Rd., W off 75, New Market 878 wa (Hagerstown) 879 Cedarhurst & Old Gamber Rds. (several off 91), Finksburg 880 Michaels Mill Rd., bet. 80& 85, Buckeystown 881 wa (Williamsport) 882 was Walton Rd, Edgewood 882 A was Woodsdale Rd between 24 & I-95, Edgewood 884 was (Old) Old York Rd, Parkton 885 was Old Freeland Rd (old 409), Maryland Line 886 (old 131) Old Seminary Avenue, Lutherville 887 was off 45 nr old NCRR underpass, Cockeysville (fr 1988 & 1991 SHA) 888 (old US 1) Old Washington Blvd., Halethorpe 889 driveway N off 137 to SHA facility, N off 137 near I-83 Exit 27, Hereford 890 was Slade Ave. W of 140 to Milford Mill Metro station, Pikesville 891 Hollins Ferry Rd. nr jct w/I-695 (Exit 9), Lansdowne 892 (old 7) stubs off MD 7 near bridge over MD 43, White Marsh 893 al 894 Limestone Rd., Hancock, nr I-70/I-68/US 40/US 522 jct 895 (I-895) 895 was Lockwood Dr. off US 29, White Oak (dropped 2000) 896 DE 896, PA 896 through NE corner of Cecil Co. 897 al 898 was SW off 28 nr Rock Creek Park. (fr 1973) 899 American Way, Montgomery Co. 900 mo 901 was Whelan Dr., N off 109 parallel W of I-270, Montgomery Co. (dropped 2000) 902 wa 903 wa (along I-68) 904 several east of & parallel to 97, north of & parallel to Taneytown Pike 905 wa 906 wa 907 wa 908 frontage roads each side of US 50/301 nr 179 W of Bay Bridge (unsigned) 909 service rd., parallel S of 424 nr US 50 jct, Anne Arundel Co. 910 C Western Maryland Pkwy, between US 40 and 144, Hagerstown 911 Norbeck Rd. between 28/586 & 355, Rockville (signed) 911 wa 912 fr 914 was Adventist Dr., bet. 355 & New Design Rd., Parallel N of I-70, Frederick 915 Old B&A Rd. nr. 100, also Arcadia Rd., Irene Ave. in same area (unsigned) 917 was Max Blob Park Rd, trailer park access road, nr 175/BW Pkwy interchange 918 was E Broad St (new name: Dr. William P. Hytche Blvd.), Princess Anne to UMES 920 Edge Hill Terrace, frontage rd. W of US 13, N of 362 nr UMES, Princess Anne 920 (old US 13) so 922E Churchville Rd., Hays St, from 924 N to Bus US 1, Bel Air. 922 (old 152) Old Mountain Rd, Edgewood 922 (old 22), Bel Air 924 (old 24) Harford Co. (signed) 924 mo 925 off US 301 to 5, Waldorf 927 do 927 Montrose Rd at I-270 interchange, Montgomery Co. (only the section at the interchange) 929A E Randolph Rd, section near new US 29 interchange, Montgomery Co. 929B Cherry Hill Rd, Montgomery Co. 929C Old Columbia Pike, Montgomery Co. 929D Prosperity Dr, off 929B, Montgomery Co. 929E Gracefield Rd, from beginning of state maintenance to road end, Montgomery Co. 929F Dustin Rd, small section near US 29, Burtonsville 930 aa 931 aa 932 was Charles Hall Rd. & Morris Tongue Dr., nr I-97/3/32 jct, Millersville 935 Old 36 nr. Pekin, Allegany Co. 936 Old 36, Midland to Frostburg, Allegany Co. 937 Old 36 nr. Westernport, Allegany Co. 939 Laurel Run Cemetery Rd. 940 Owings Mills Blvd. - also small sliver off 30 north of Reisterstown (signed) 941 al 942 Bridge St. bridge to WV 28, Cumberland 943 Warren Rd. from I-83 ramps to Beaver Dam Rd. (unsigned) 943 was at 243-5 jct W of Leonardtown 944 sm 945 Old MD 235, near MD 245, Hollywood, St. Marys Co. 946 off 546 nr Alt. US 40, Garrett Co. 948 ga-al 949 al 950 Garden City Dr., NW of I-95/495-US 50 jct nr New Carrollton Metro Station, New Carrollton 951 al 952 Frontage road along south side of I-68 at Exit 45 ramps, Cumberland 953 Glenn Dale Rd., Prince Georges Co. 954 Marina Dr, Ferry Pt Dr, at north end of US 50 Choptank Bridge, Talbot Co. 956 E of US 220 S of Pinto to WV line, Allegany Co. 957 Old Waterloo Rd. (108) nr 108-175 jct (from 1985 Champion & ADC) 958 was Elibank Rd., E off Montgomery (old 103) N of I-95 (from 1985 Champion) 958P Crestmount Rd., N off US 1 west of 175, Waterloo 959 pg 963 Deputy Ln, Prince George's Co. 964 Truman Rd, Prince George's Co. 965 small frontage parallel E of 201 (BW Pkwy) at DC line, Prince George's Co. (was MD 695) 967 frontages off MD 5, Prince George's Co. 968 National Guard Armory entrance, N off 193 just west of 201, Greenbelt 969 Fairview Ave., ramp off Nursery Rd (168) to I-695 (unsigned) 970 ho 971 pg 972 Old Silver Hill Rd., off 458 nr MD 4, District Heights 973 Tuxedo Rd, W off 459, Cheverly 974 frontage road east off MD 193 Enterprise Rd to Sondberg Ln. (just S of US 50), Prince George's Co. 975 Montevideo Rd. S off US 1, Howard Co. 976 frontages/spurs off US 301, Prince George's Co. 977F Old Largo Rd, from 202 north to 214 east (ramp & connector), Largo 978 frontages off MD 214, Pringe George's Co. 979 Main St., between 2nd & 3rd Sts. (1-way US 1s), Laurel 980 Access Rd., parallel W of 4, Anne Arundel Co. 981 Tricross Dr., nr 100-104 interchange, Howard Co. 982 Old Columbia Pike., west of 29, Columbia (from 1992 state planning map) 983 old 216 E of Leishear Rd. & other E of I-95, Laurel 984 ho (off US 40) 985 (old 99/105) Old Rogers Ave., Ellicott City (unsigned) 986 Old Columbia Rd., parallel E of US 29, Columbia 987 (old US 29) Old Columbia Pike, Ellicott City (unsigned) 988 was Milton Ave. off Catherine parallel to & S of 100 (fr 1985 Champion) 989 was Seaborne Dr., NW off south end of 607, Anne Arundel Co. 990 aa 991 wi (Salisbury) 992 John Deere Rd., service Rd., parallel S of US 50, Wicomico Co. 993B (old US 1) Old Washington Blvd., Lansdowne (unsigned) 994 aa 995 from 170 to BWI Amtrak Station (unsigned) 996 Eggert Dr. nr 191 & I-495, Carderock (signed) 997D between Morris Tongue Dr. & Jabez Run, passes under I-97 north of Exit 7 997E Stevenson Rd, west off Bus 3 (New Cut Rd) to Cresthill Dr, Anne Arundel Co. 997 Parallel Dr.? near SSA Woodlawn (from Hearne Bros wall map) 998A MD 198 service road, off Star Pointe La., Montgomery Co. 999 Old Frederick Rd.?, Catonsville (from Hearne Bros wall map) 999D Old Hammonds Ferry Rd., off Newport Rd S of 176, nr BWI Airport Explanation of unmarked 'secret' routes: Unmarked numbers are assigned to old parts of a state route that were later bypassed or otherwise realigned. In earlier times, the main reason for this would be to eliminate a railroad grade crossing with a new bridge for the main route adjacent to the old, the old being assigned one of these higher numbers. The old road would then be closed at the crossing, but the number would remain. Some examples of this appear below: main# old# location 25 746 Ruxton 30 668 Woodensburg 45 463 Parkton 185 666 Kensington 174 483 Severn 493* 599 Middle River *later became 700 175 677 Odenton 176 645 Harmans 166 466 Relay Another early reason would be new bridge construction...sometimes the old bridge would remain in service, sometimes it wouldn't, leaving a two-part stub route. US 1 461 S of Bel Air (now Bus 1) US 1 590 Winters Run US 1 591 Richardsmere 2 553 South River As speeds increased, whole sections of narrower two-lane routes would be rebuilt straighter and wider, leaving sections of the old road to either side in many cases. In most cases, all such old sections of a route were given the same higher route number. Some examples are below: main# old# US 15 806 US 40 144 west of Baltimore US 40 7 east of Baltimore US 50 662 Talbot Co. US 340 180 2 648 B&A Blvd 2 778 Southern AA Co. 2-4 765 Calvert Co. 3 761 Upper Marlboro 4 725 PG Co. 5 722 17 871 18 759 22 132 24 755, 924 25 746 26 850 27 852 30 668 32* 832 Carroll Co. (now 140) 32 851 34 845 36 936 67 868 80 880 140 526 150 600 178 776 194 853 140 526 313 619 Denton 349 815 west of Salisbury 454 821 Marydel Clusters of Routes in or near Towns: (West) Annapolis 435-436-437-438 Betterton 293-294-295-296 Crisfield 358-359-360-380-460 Elkridge 321-322-323-477 Federalsburg 307-308-315-318 Middle River 599-600-601 Vienna 485-486-487 Paired parallel old-new or loop/spur routes: US 1 477 993 US 13 529 598 675 US 15 806 875 US 29 196 895 982 987 US 40 7 99 144 914 985 999 US 50 18 346 450 565 662 707 731 750 835 US 113 394 818 US 301 18 701 835 835A US 340 180 872 US 522 894 2 553 648 765 778 3 932 4 725 765 794 980 5 326 584 637 6 826 7 490 8 759 802 16 817 18 835 22 922 24 755 924 25 746 26 850 27 808 852 30 668 31 852 32 432 732 851 34 845 36 935 936 937 45 887 60 805 64 804 844 846 847 67 858 75 874 84 800 91 879 97 655 854 904 99 985 135 825 140 526 832 904 144 997 999 165 757 166 466 150 600 151 20 718 152 922 174 483 175 677 723 176 845 178 776 193 666 194 853 197 953 198 216 602 202 716 210 810 216 983 235 722 860 944 268 727 272 699 274 697 331 817 367 368 568 383 870 413 667 424 793 909 456 656 464 871 550 814 648 915 Unassigned numbers (I have nothing on these routes): 9 538 596 649? 685 689 738 774 777 780 782 789 791 792 799 801 816 829 865 866 883 892 913 916 919 921 923 926 933 934 938 947 955 959 960 961 962 966