Status: Marked east-west.

Associated Secret-Obscure Routes:
872A 872B 872C

MD 180 is the old 2-lane version of US 340, bypassed by a 4-lane limited access highway circa 1970.

There are two parts of this route, the first being Jefferson Pike, and the other is Keep Tryst Rd., passing near US 340 Exit 1.

MD 180 eastbound, Jefferson. (picture 03/20/2010)

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No longer assigned (decommissioned 194x), now part of MD 175.

This number was dropped when 175 was opened through Fort Meade.

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Original extent decommissioned sometime before 1999, Spa Creek Drawbridge revived 2009.

The latest 2009 Route Alert List confirms the return of 181 thus:

MD 181 – Route number re-assigned to Spa Creek bridge (Struc #2053) in Annapolis.

Originally MD 181 began at Forest Drive (which was MD 665 at the time), running north along Bay Ridge Avenue, then northwest along Sixth Street in the Eastport section of Annapolis to the bridge. It changes names to Compromise Street at the northern end of the bridge, as you enter the southern part of downtown Annapolis.

Although it was decommissioned, 181 still showed up in documents concerning the drawbridge-it may have remained state operated and thus possibly 181 may have still been on the books, but only consisting of the bridge. ADC maps still show 'Route 181' written as text along Bay Ridge Ave.

It's also the end of the Anne Arundel County cluster, now back we go to Montgomery County.

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Marked north-south.

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No longer assigned (decommissioned).

Dropped sometime after late 1976. Was also known as Glenmont Road.

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No longer assigned (decommissioned 1999).

Does a loop back into DC from US 29 at the line. There was an 'END 184' sign where Blair dips into DC for good.

MD 184 depicted on a 1956 map. It remained until 1998.

MD 184 sign, from the intersection of US 29, and End 184 sign at the DC border, 1998.  

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Marked north-south.

A major commuting artery. MD 185 once ended at 193, with 193 going to the DC line. South of 410, 185 was once Alt. US 240. All those Chevy Chase town names are separate incorporated areas.

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Decommissioned. Nothing remains of it.

May have been the shortest route in the primary sequence (<379). Consisted mainly of a rail crossing. East end was near Montgomery College. The bridge that formed the bulk of this route is gone. In the map inset for 184 above, it is the short piece crossing the railroad between Routes 184 and 605.

The remains of the original MD 185. The road is Blair Rd (former MD 184). MD 185 veered left into the knoll that formed a railroad bridge abutment.

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Marked southbound, no cardinal directions; unmarked northbound.

MD 186 is a minimally marked residential street with several 4-way stops and a 25 MPH limit through parts of Chevy Chase and Martin's Additions. It would seem likely that this route will be downloaded sometime soon.

MD 186 sign, southbound (photo 02-18-01).

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Marked north-south.

Does a loop west of 355; another parallel to a often clogged commuter route.

MD 187 (southern Terminus) turnoff viewed from MD 355 in Bethesda.

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Marked east-west.

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The obligatory view... MD 188 turnoff viewed from MD 355 in Bethesda.

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Marked north-south.

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Marked east-west.

Passes through Potomac, which features some of the nation's most valuable real estate.

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Marked east-west.

MD 191 used to do an inverted-U shaped loop over I-495 out to MD 190, then returns inside the Beltway. The western end was rolled back in 1999 to MD 190. On the eastern end, it's a narrow neighborhood street which from the looks of it, would be closed as a through road or get speed bumps as soon as SHA drops the route.

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Marked east-west.

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NHS: Between MD 97 and Belvidere Pl

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Marked east-west.

Despite the loss of Connecticut Ave, 193 has grown longer over the years. Its original eastern end was at US 1 in College Park adjacent to the University of Maryland, taking a direct route through the campus. Circa 1956, the current route was built, bypassing the campus to the north, meeting US 1 near Greenbelt Rd (MD 430). There was one ramp from southbound US 1 to westbound 193, 193 then veered south to Greenbelt Rd, via which US 1 could be accessed. By 1964, MD 193 was extended east over Greenbelt Rd, taking over much of MD 430 with it, to the interchange with the B-W Parkway. Around 1968, 193 went east to MD 450 in Glenn Dale. At a later point (1970s?) came the final expansion, the bypass of the Glenn Dale grade rail crossing, taking over Enterprise Rd (MD 556) to the current eastern end of 193 at MD 202.

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Number changed on Connecticut Avenue portion of MD 193, now MD 185.

Connecticut Ave south of current MD 193 was once also part of 193; it seems to have been changed to 185 around the time the Capital Beltway was built, thus avoiding two interchages with the same route number a few exits apart.

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Marked north-south.

Was once MD 71. Number changed to match with PA 194..

Associated Secret-Obscure Routes: 853

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No longer assigned (decommissioned), now MD 787.

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Marked north-south.

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Unsigned south of Industrial Pkwy., decommissioned north of same to MD 198.

Most of this route, parallel with US 29, was decommissioned in the early seventies after 29 was completed. All that's left is a small broken frontage near 650 in White Oak. The old bridge over Paint Branch has been taken out. Route 196 is only so designated on SHA grid maps, and the back of emissions test notices, as there's a testing station on nearby Industrial Parkway. It's nowhere to be found on the free official Maryland maps, nor is there any signage.

Why the broken pieces south of Industrial Parkway were kept and not dropped like the more traveled northern part is beyond me. A similar thing happens in Ellicott City, while MD 99 east of US 29 was dropped, the old road, secret route 985, remains, in two parts.

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Marked north-south.

NHS: From US 50 north to Baltimore-Washington Pkwy (MD 295)

Passes through Beltsville Agricultural Research Center. Though many routes in this range cross between Montgomery and Prince George's Counties, this is as good a point as any to begin the PG County cluster (197 through 223 or 224).

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Marked east-west.

NHS: From I-95 east to US 1

Near MD 32, 198 was once designated MD 602. The only reminder is a derelict sign and building, once called 'Club 602'.

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No longer assigned (decommissioned 1953-55), entire route now MD 953.

It now dead-ends at the Amtrak crossing near 564. It appears as 199 in the 1948 and 1953 map, and gone in '55. It's now bypassed by 193. [There was a program in the 40s & 50s to eliminate railroad grade crossings with state highways. Often the bypassed section remained under state maintenance with a more obscure number. Thus the 953 number may date from 1953-55.]

Or so I thought...199 wasn't bypassed by 193, it became 193 and was later bypassed, at which time it became 953. There may have been some time between the two, being decommissioned as 199 and returning to the system as 193 (?). Thanks to Jim Titus for this correction:
    Just wanted to let you know that Md-953 is much newer than the 1950s. When I bought a house in Glenn Dale, the last two grade crossings between DC and New York were in Glenn Dale---Hillmeade Rd and Glenn Dale Rd, which was Md-193. Only when the road was re-routed as Glenn Dale Boulevard and connected to Enterprise Rd, did the Md-953 come about.  And Enterprise became 193 as well. So basically, there must have been two name changes, from 199 to 193 and then to 953.  Your info says that 193 was originally a Mongomery County number, so perhaps it went from 199 to 193 when it was first connected to 193 (or when Greenbelt Rd was connected to 193).

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