Marked north-south.

According to SHA maps, state maintenance ends near the Hagerstown city line. Becomes North Potomac St. in Hagerstown. Across US 40, it becomes South Potomac St., and MD 65.

Associated Secret-Obscure Routes:
805

Suffixed section of MD 60:
MD 60A: (no name) 0.10 mi.; between MD 60 and MD 418.

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Status: Unmarked.

A new route in 2001, offering a new Potomac River crossing into West Virginia. It links MD 51 east of Cumberland to WV 28 and the Cumberland municipal airport which is on the West Virginia side of the river. It's only 2 lanes, wedged in tightly between the massively wide rail yard and the Potomac River. South of West Elder Street, it's divided, but only one lane each way.

No trucks over 5 tons are permitted. Brown signage is used and brick on walls and bridge abutments.

Suffixed sections of MD 61:
MD 61A: (no name) 0.14 mi.; from MD 61/River Ave. intersection west to road end.
MD 61B: River Ave. 0.08 mi.; East from the same intersection to road end.

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Decommissioned 1956 (SRC Min. 10-15-1953, Effective 07-01-1956), number reassigned 2001.

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Marked north-south.

Does not technically reach MD 64, but the 'old' 64, now assigned unmarked MD 804B.

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Marked north-south.

Associated Secret-Obscure Routes:
843

North of Williamsport, this route was MD 398, because of the old 'no duplex' policy; 63 and 68 share a 2-mile section.

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Marked east-west.

Associated Secret-Obscure Routes:
804 844 846 847

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Marked north-south.

Near its southern end in Sharpsburg, Route 65 passes near Antietam National Battlefield.

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Marked north-south.

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Marked north-south.

Associated Secret-Obscure Routes:
572 858

Sections of MD 67:
MD 67A: 0.00 mi.; .
MD 67B: 0.00 mi.; .
MD 67C: 0.00 mi.; .
MD 67D: 0.00 mi.; .
MD 67E: 0.00 mi.; .
MD 67F: 0.00 mi.; .

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Marked north-south.

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Marked east-west.

I-68 has its own page in the Interstate section.

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No longer assigned (decommissioned 1956).

Gone by 1961. Had nothing to do with sign theft, more like the Twelve Year Program. Theft of Route 69 markers in other states such as New Jersey, which changed its Route 69 to 31 to save money on replacement, was discussed in a recent misc.transport.road thread. Also mentioned was theft of route markers depicting other suspect numbers, such as various states' 420, and the infamous US 666 in Arizona and New Mexico. FYI, MD 69 was dropped before 1961, MD 420 was gone by the seventies, and MD 666 (ironically, Saint Paul St. in Kensington) was probably never signed, but also gone by the fifties.

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Marked north-south.

I-70 has its own page in the Interstate section.

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Offers best entrance to Annapolis, on axis with the State Capitol. The State Archives are at the first left after MD 435; spent many a Saturday there researching for this site. It's well out of the way of I-70, so peaceful coexistence without confusion is possible. Interstate numbers don't seem to be a consideration when using or changing Maryland route numbers as is the case in other states.

Rowe Blvd was completed by 1955; though the number is not shown on official maps, the old 70 was by then changed to 464.

Marked north-south.

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No longer assigned, route is now MD 478.

The 70 number was already switched to 478 to make way for Rowe Blvd sometime between 1949 and 1953, too early for the change to be for I-70; the Interstate Highway legislation wasn't passed till 1956.

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No longer assigned, changed to part of US 301 circa 1960.

Current US 301 on the Eastern Shore opened as MD 71 on December 3, 1956. Number removed when US 301 rerouted into Delaware on this highway; 71 is the only 2 digit number to be scrapped twice! However, both former 71s are not only still numbered highways, but main drags. Choice of 71 may have been an attempt to match numbers with nearby Delaware 71 or vice-versa.

MD 71 on the Upper Eastern Shore, 1958.

US 50 / MD 71 split, from A History of Road Building in Maryland, 1957-58.

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No longer assigned (decommissioned c. 1958), now MD 194.

Entire route now MD 194. Number 71 later given to Blue Star Mem. Hwy., now the Eastern Shore part of US 301.

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No longer assigned (decommissioned 1956).

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No longer assigned (decommissioned c. 1967).

A northern portion of this route survived into 1966, but gone by '68.

MD 73, 74, 59, 69, 71, 78 around Frederick, 1955. MD 71 became 194, 78 became 180, then 351. The rest were gone by 1970.

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No longer assigned (decommissioned 1956).

Gone by 1961, possibly engulfed by annexation of entire route by Frederick. May also explain northern part of 73 sticking around another five years. The formerly state maintained portion has been made into a 4 lane divided suburban access road. There's no way of telling that it ever was anything other than a new road to get to new subdivisions wedged in on the edge of Fort Detrick.

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Marked north-south.

In the Carroll County portion, from Union Bridge to the 'northern' terminus' in New Windsor, northbound traffic actually heads east-southeast!

Associated Secret-Obscure Routes:
83 800 874 877

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Marked north-south.

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Marked east-west.

MD 77 passes through Catoctin Mountain Park, and runs near to the presidential retreat, Camp David.

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No longer assigned (became part of MD 180 in early 70s, and MD 351 since 1988).

MD 78 comprised all of what is now Route 351, with exception of some changes in alignment at the northern end with I-70 and US-340. It still ends in the same indeterminate place just short of Church Hill as 351 now as it did then as 78. Has been part of U-shaped 180 and now 351 since dropping of 78. Through these number changes, the route itself is mostly unchanged.

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Marked east-west.

Awfully short for a 2-digit route.

Associated Secret-Obscure Routes:
871

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