| U.S. Route 1 Business | |
|---|---|
| Route information | |
| Business route of US 1 | |
| Maintained by MDSHA | |
| Length: | 6.90 mi (11.10 km) |
| Existed: | 1966 – present |
| Major junctions | |
| South end: |
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| North end: |
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| Location | |
| Counties: | Harford |
| Highway system | |
MD 24 in Bel Air![]()
MD 22 / MD 924 in Bel Air
MD 924 in Bel Air
MD 23 in Hickory