Browse Bridge Database
5,500 bridges in the FHWA National Bridge Inventory in Maryland.
National Bridge Inventory Database
Browse 5,500 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.
| Bridge | Location | Condition | Year Built | Length | ADT |
|---|---|---|---|---|---|
| MD 3 BUSINESS | Maryland | Good | 1990 | 78.0 m | 135,900 |
| POTOMAC RIVER | Maryland | Fair | 2008 | 1,855.3 m | 135,287 |
| CSXT & COLLINGTON BRANCH | Maryland | Fair | 1992 | 62.8 m | 134,833 |
| MIDDLEBROOK ROAD | Maryland | Fair | 1990 | 44.2 m | 133,720 |
| AMTRAK SER RD BEAVERDAM | Maryland | Good | 2008 | 88.7 m | 132,060 |
| AMTRAK SER RD BEAVERDAM | Maryland | Fair | 2008 | 86.9 m | 132,060 |
| PADONIA ROAD | Maryland | Good | 2022 | 31.2 m | 131,750 |
| JAMES RUN | Maryland | Fair | 1963 | 44.2 m | 130,492 |
| IS 270Y RAMPS B & B3 | Maryland | Fair | 1958 | 91.1 m | 130,450 |
| US 29 RAMP A (07) | Maryland | Fair | 1966 | 54.9 m | 130,203 |
| FREDERICK ROAD | Maryland | Fair | 1966 | 41.1 m | 130,203 |
| FREDERICK ROAD | Maryland | Fair | 1948 | 41.8 m | 130,203 |
| POTOMAC RIVER | Maryland | Fair | 2006 | 1,855.3 m | 128,275 |
| MD 295 SBR | Maryland | Fair | 1951 | 18.0 m | 128,182 |
| TRIB TO PATAPSCO RIVER | Maryland | Fair | 1951 | 6.1 m | 128,182 |
| MD 168 | Maryland | Fair | 1958 | 39.0 m | 128,182 |
| MD 295 NBR | Maryland | Fair | 1951 | 18.0 m | 128,182 |
| CSX MTA AMTRAK AND NOR | Maryland | Poor | 1959 | 360.6 m | 127,291 |
| MD 193 | Maryland | Fair | 1955 | 54.9 m | 124,950 |
| MD 648E MTA LIGHT RAIL | Maryland | Fair | 1955 | 79.9 m | 124,594 |
| WEEMS CREEK | Maryland | Fair | 1953 | 86.6 m | 123,940 |
| MD 2 RAMP 9 | Maryland | Fair | 1991 | 41.1 m | 123,940 |
| ADMIRAL DRIVE | Maryland | Fair | 1953 | 43.0 m | 123,940 |
| MOORES RUN | Maryland | Fair | 1971 | 15.9 m | 121,313 |
| BOULTERS WAY | Maryland | Fair | 1953 | 35.3 m | 121,160 |
| MTA AND JONES FALLS | Maryland | Fair | 1959 | 238.0 m | 120,795 |
| MTA LIGHT RAIL YARD | Maryland | Fair | 1959 | 282.9 m | 117,171 |
| MD ROUTE 197 (EBL) | Maryland | Fair | 2001 | 55.0 m | 117,000 |
| MD ROUTE 197 (WBL) | Maryland | Fair | 2001 | 44.6 m | 117,000 |
| MD ROUTE 197 (EBL) | Maryland | Fair | 2001 | 43.9 m | 117,000 |
| MD ROUTE 197 (WBL) | Maryland | Fair | 2001 | 42.7 m | 117,000 |
| MD ROUTE 212 | Maryland | Fair | 1953 | 21.0 m | 117,000 |
| GRAYS RUN | Maryland | Good | 1963 | 8.5 m | 116,162 |
| IS 270Y | Maryland | Fair | 1996 | 93.3 m | 115,850 |
| PATAPSCO RIVER | Maryland | Fair | 1958 | 418.2 m | 114,870 |
| IS 270Y MEDIAN | Maryland | Good | 2003 | 153.9 m | 114,000 |
| FOLLY BRANCH | Maryland | Fair | 1955 | 25.9 m | 113,590 |
| MD 704 | Maryland | Fair | 1955 | 91.7 m | 113,590 |
| FOLLY BRANCH | Maryland | Fair | 1955 | 25.9 m | 113,590 |
| MD 193 | Maryland | Fair | 1955 | 54.9 m | 113,590 |
| MD 187 (OLD GEORGETOWN R | Maryland | Good | 1962 | 41.1 m | 113,030 |
| WASH. BLVD & GWYNNS FALL | Maryland | Good | 1977 | 242.9 m | 111,945 |
| MD 85 (Buckeystown Pike) | Maryland | Good | 2020 | 131.7 m | 111,550 |
| MD 70 | Maryland | Fair | 1991 | 70.7 m | 111,323 |
| CSX RR BERNARD DR | Maryland | Fair | 1976 | 467.7 m | 111,060 |
| GWYNNS FALLS | Maryland | Fair | 1984 | 175.0 m | 110,982 |
| IS 695 RAMP B | Maryland | Fair | 1983 | 155.1 m | 110,982 |
| GWYNNS FALLS | Maryland | Fair | 1984 | 159.4 m | 110,982 |
| CSX TRANSPORTATION | Maryland | Fair | 1984 | 98.8 m | 110,982 |
| MT WILSON LANE | Maryland | Fair | 1983 | 39.0 m | 110,982 |
Frequently Asked Questions
The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.
ADT stands for Average Daily Traffic — the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.
Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.