Maryland Route 456
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| Del Rhodes Avenue | ||||
Maryland Route 456 highlighted in red
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| Route information | ||||
| Maintained by MDSHA | ||||
| Length: | 1.20 mi (1.93 km) 2 sections |
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| Existed: | 1933 – present | |||
| Major junctions | ||||
| South end: |
 US 50 near Queenstown
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 US 301 in Queenstown |
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| North end: |
 MD 18 in Queenstown |
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| Location | ||||
| Counties: | Queen Anne's | |||
| Highway system | ||||
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Maryland Route 456 (MD 456) is a state highway in the U.S. state of Maryland. Known as Del Rhodes Avenue, the state highway runs 1.20 miles (1.93 km) from U.S. Route 50 (US 50) north to MD 18 within Queenstown. MD 456, which serves as a cut-off between US 50 and US 301 just east of the split of the two highways, is officially separated into two sections, MD 456 and MD 456A, by a superstreet intersection with US 301. The state highway was constructed in the early 1930s as a cut-off between Queenstown and MD 404, then the main east–west highway in western Queen Anne's County. MD 456 was extended south in the late 1940s when US 50 was moved to its present course.
MD 456 begins at an intersection with US 50 (Ocean Gateway) just east of Queenstown. The ramp from westbound US 50 to northbound MD 456 is the original alignment and has the unsigned designated US 50QB. MD 456 heads northwest along a row of residences. The state highway enters the town of Queenstown after crossing the Wye River. MD 656 (Friels Road) splits to the west before MD 456 officially ends at US 301 (Blue Star Memorial Highway), where the two highways meet at a superstreet intersection. Traffic on MD 456 is required to turn right onto US 301, make a U-turn, and turn right again to continue on MD 456. The roadway, now officially MD 456A, continues 0.32 miles (0.51 km) to the highway's northern terminus at MD 18 (Main Street), officially MD 18C, in the center of Queenstown.
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