Unmarked, associated with MD 4.

For the most part, an unmarked number for sections of frontage roads on the south side of MD 4, the north side frontages bearing route number 794.

Sections of MD 980: A, B, C, D are mainline.
MD 980A: MD 4 Service Rd. (AA) 1.07 mi.; from MD 4-408 junction south to MD 980E (Plummer La.) - Runs along the northern half of the Anne Arundel Co. section of MD 4.
MD 980B: MD 4 Service Rd. (AA) 2.05 mi.; from Wrighton Rd. south to road end. - Accompanies the southern part of MD 4.
MD 980C: Fishers Station Rd. (AA) 0.52 mi.; from MD 4 south to end of state maintenance.
MD 980D: Ritchie Marlboro Rd. (PG) 0.44 mi.; from Old Marlboro Pike east to MD 4 - Access ramp to westbound MD 4, which is full limited access in that area. Only section of 980 in Prince George's County.
MD 980E: Plummer La. (AA) 0.13 mi.; from MD 4 north to MD 980A-end of state maintenance.

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Unmarked.

MD 981 is a small loop west of the busy 104-108 junction and their ramps to the new MD 100.

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No longer assigned (decommissioned around 1993).

Saw this one on a 1992 planning map. Probably never marked.

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Unmarked, associated with MD 216.

Number 983 is assigned to the old alignments of MD 216. Realignment was made necessary by construction of the I-95 interchange with 216. The two sections of this route lie on opposite sides of I-95.

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Unmarked.

MD 984 is a frontage to the south of US 40, about ¾ mile east of US 29.

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Unmarked, associated with former MD 99.

MD 985 comprises the old Route 99 (it was 105 in this area further back), but this frontage road's designation has outlasted that of the new road that replaced it! East of US 29 (29's northern terminus), Rogers Ave. was stripped of its 99 designation. MD 985 remains in two parts, both just to the north of I-70.

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Unmarked, associated with US 29.

Only the K and L sections of this route remain. A through J were probably scattered all up and down US 29 during its upgrade to limited access.

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No longer assigned (decommissioned 1995).

MD 987 was the pre-freeway US 29, ending at Main St. in Ellicott City, which was then US 40. 29 and 40 continued together east along modern MD 144 into Baltimore. It's an awfully high number, considering it was once a US highway and it's not a frontage, more a spur as it drops steeply into the Patapsco river valley. It may have not been marked for years, but ADC showed 987 at least until 2001. Other commercial maps may still yet show it. The southern end of this former route is now at MD 103, as 987 near the old US 29 junction was removed for an interchange with the new MD 100.

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No longer assigned (decommissioned 1999-officially was MD 988A).

Previous Designation: Milton Ave, east off Catherine Ave. south of MD 100. Runs for two blocks parallel to and south of MD 100. Got this one off a Champion wall map, circa 1985. MD 988, 989, and 990 are small stubs to the south of MD 100 in Anne Arundel county. Only 990 is still on the books today. The rest were dropped in the late eighties.

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Unmarked.

MD 989 is the former US 50 approach to the old Choptank River Bridge, of which parts remain as a fishing pier.

Previous Designation: Seaborne Dr. northwest from southern end of MD 607. Probably never signed; I never knew this one existed. Provides access to a residential area and a Seventh Day Adventist church, which seems to face MD 607. This road may have had to be reconfigured for improvements to the MD 100-607 grade intersection, i.e. access controls on 607, thus placing Seaborne under SHA maintenance.

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Unmarked.

Access road to undeveloped athletic complex, off 177 just east of MD 100.

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Unmarked.

Main Street in Salisbury was the original route of US 50, and before 1949, US 213. Maintenance of the old route has been turned over to Salisbury except for the drawbridge over the Wicomico River in downtown Salisbury. The last non-bridge part of 991 once stretched 0.70 miles west of the bridge, as the route log begins with that mileage.

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Unmarked, associated with US 50.

The frontage roads that form MD 992 are of much less historical significance than 991. We're back to our plain old service roads here.

Sections of MD 992: running west to east. MD 992, 992C, and 992F are north of US 50, all others south.
MD 992: (no name) (WI) 0.22 mi.; from Philip Morris Dr. east to road end. MD 992A: John Deere Rd. (WI) 0.74 mi.; from Hobbs Rd. east to road end.
MD 992B: Eastside Rd. (WI) 0.22 mi.; from US 50 south to road end.
MD 992C: (no name) (WI) 0.07 mi.; from Sixty Foot Rd. east to road end.
MD 992D: (no name) (WI) 0.21 mi.; from Friendship Rd. east to road end.
MD 992E: Tankard Rd. (WI) 0.37 mi.; from White Richardson Rd. east to road end.
MD 992F: Caleb Rd. (WO) 0.25 mi.; from US 50 north to road end.

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Unmarked (officially 993B).

This one could fit into a single photo. It's part of the old US 1 before some tight curves were removed.

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Not assigned.

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Unmarked.

NHS: Entire length. (intermodal connector)

The access road to the BWI Airport rail station, with a loop and multilevel parking garage at the end.

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No longer assigned (decommissioned 1999).

This was the highest number on a route marker in Maryland, and the third highest overall. That distinction is now left to MD 956. Also gone is the section of MD 191 to the east, in a large clean-up of state routes in Montgomery County.

This route was in 1966 called "US Navy Truck Rd" on a Washington DC area map, the access road to the David Taylor Model Basin. Perhaps a reason that this otherwise unimportant road would be selected as a state route.

MD 996 marker at MD 191.

West end of MD 996 near Tammy Dr.

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Unmarked (officially 997D).

The highest route number in Maryland until 2001, 997 (it's actually 997D) passes under I-97, connecting the two sides of old MD 3, just north of I-97 Exit 7. Jabez Run is the name of a small segment of what was the southbound side of MD 3.

An unconfirmed instance of 997 is Parallel Dr. south of the Social Security complex in Woodlawn, running alongside the north side of I-70 west off Ingleside Ave. I once saw it in the mid 80s on an old Hearne Brothers wall map, but nowhere else. If only I remembered where this wall map was....

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Not assigned.

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Unmarked, officially MD 999D.

A new route in 2001, MD 999 takes the highest route number overall. Appears to be south of the intersection of MD 176 and MD 162 southeast of BWI Airport.

Previous Usage?The same Hearne Bros. map that shows 997 in Woodlawn also showed a 999 as Old Frederick Rd. in Catonsville. This may be a 'trap' to catch other map publishers in the act of cribbing route numbers off Hearne maps. It's a very curvy road, the original route from the colonial era. It's very unlikely it was ever a state route, but I mention it here in case anyone has seen it elsewhere.

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