Marked east-west.

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No longer assigned (decommissioned).

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MD 441, from 1958 map. MD 280 is now MD 213.

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No longer assigned (decommissioned).

MD 442 last appears in the 1987 state map. Only the route is black indicating state maintenance, but there isn't room for the 442 marker. It disappeared sometime between 1987 and 1993.

The routes from 442-449 are all in Kent County. It's our first large cluster in the numbers above 400. Of these, (signed) 444, 445, 446, (unsigned) 447 and 449 remain.

Remains of MD 442, 1998. Facing west from near the eastern end. Several Kent County routes seem to have been paved in this fashion, with a concrete center portion. This is opposite typical old routes, which have concrete shoulders. Just north of here is former MD 296 in Betterton. It's paved over, but appears to have a similar concrete piece underneath.

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No longer assigned (decommissioned).

Like 442, MD 443 disappears around the same time, 1987-93.

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Marked north-south.

Once ended at a railroad crossing 2 miles north of the current southern end (Blacks Station).

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Markednorth-sou

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Marked north-south.

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No longer assigned (decommissioned).

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No longer assigned (decommissioned), western portion now part of MD 291, small eastern portion part of MD 298.

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No longer assigned (decommissioned c. 1990).

Was likely dropped at the same time that Browntown Rd, which parallels 448 about 1 mile to the east, was made part of an extended MD 298.

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Unmarked. Too short for any signage.

Only 0.07 miles, or about 370 feet long, MD 449 is on the northwest corner of the MD 213/444 intersection. It's in the same vicinity as an incarnation of MD 447, which was on the northeast side.

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No longer assigned (decommissioned).

This was an old part of 222 just north of US 40, bypassed by a bridge to replace the former railroad grade crossing.

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Marked east-west.

MD 450 came into being in the 1950s; as portions of the new US 50 were completed, these old sections would be numbered 450. It crosses the Patuxent River (the Prince George's-Anne Arundel county line) along a short co-signed segment with MD 3. (Prior to the new 50, this short duplex would have been US 50/301) It later underpasses I-97 with no direct access, but ample access is provided via US 50 near Annapolis Mall.

Originally, US 50 ended at Church Circle in Annapolis, and College Ave/King George St were part of MD 2, which at the time went through Annapolis. When the new US 50 was built, MD 2 was rerouted and co-signed with 50 to bypass downtown Annapolis. MD 450 was extended along Ritchie Hwy to its current end at the Route 50 interchange.

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No longer assigned (decommissioned 1940s), entire route now part of MD 16.

MD 450 appears on a map from 1940, gone be 1946.

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No longer assigned (decommissioned 1999).

This was once MD 33, and the southern terminal of a ferry to Romancoke (current MD 8) on the southern tip of Kent Island. At the time, MD 451 was used for the current part of 33 south of Claiborne Rd to Tilghman Island. After the ferry service was terminated, 33 and 451 swapped, and 451 was now used for the spur to Claiborne. The number was dropped in 1999.

MD 451 shown on a 1954 map.

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Marked north-south.

Forms a shortcut between US 50 and 113 northeast of Berlin.

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No longer assigned (decommissioned).

Runs south-southwest off Scenic 40 near I-68 Exit 78.

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Marked north-south.

So named because a crown stone on the Mason-Dixon Line lies alongside the road in Marydel. A so-called crown stone (with the Calvert and Penn coats-of-arms) was placed at every fifth mile instead of the simpler stones used every mile. MD 454 becomes DE 8 across the line.

Associated Secret/Obscure Routes: 821

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No longer assigned (renumbered May 15, 1968), entire route now part of MD 54.

Dates at least as far back as 1937, when a planning budget notes 455 as State St in Delmar. The 1968 Rand McNally atlas shows both 54 and 455; this may be DE 54 and MD 455 together, as the parts entirely in Delaware are also marked 54. In the 1971 version, only 455 is shown again. The 1970 official Maryland map only shows 54, the 1966 version shows 455. The Delaware portion was designated Road 419.

MD 455 shown on a 1958 map. MD 455 and 467 (to the west) are now part of MD 54.

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Marked north-south.

Goes back at least to 1940. Serves now as a small cutoff between US 50 and 301 just east of the split.

Associated Secret/Obscure Routes: 656

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No longer assigned (decommissioned).

Still appears in 1958, but likely gone by 1968.

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Marked, unsure of cardinal directions.

Original east end was as MD 4, but later extended to Walker Mill Rd. On the west end, 458 curved northward at MD 414 before meeting MD 5, along what is now Old Silver Hill Rd. A new 458 was built, straight west 1/4 mile to MD 5, and Old Silver Hill Rd became part of MD 414, which it remains part of today.

Associated Secret/Obscure Routes: 972

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Unmarked.

Originally this route was Cheverly Ave, running north through Cheverly to MD 202. This routing has since been dropped, and from near the southern starting point, now turns west on Tuxedo Rd, parallel to the north side of US 50. It then turns north onto the southernmost part of Kenilworth Rd up to the point where MD 201 comes in off the B/W Parkway and takes it over to points north.

MD 459 on a 1956 map. The current 459 turns west along what was then Arbor St over to Kenilworth Ave, then north to meet the current MD 201.

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