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 |
|---|---|---|---|---|---|
| US 1 PATAPSCO RIVER RAMP | Maryland | Fair | 1973 | 205.7 m | 15,114 |
| IS 695 | Maryland | Fair | 1983 | 92.4 m | 15,090 |
| STONEY CREEK | Maryland | Fair | 1947 | 270.9 m | 15,071 |
| MD 665 SBR IS 595 | Maryland | Fair | 1991 | 95.4 m | 15,006 |
| MD 414 (OXON HILL ROAD) | Maryland | Fair | 1990 | 45.4 m | 14,985 |
| BRANCH OF CATTAIL CREEK | Maryland | Fair | 1989 | 6.7 m | 14,962 |
| WATTS BRANCH | Maryland | Fair | 1972 | 34.7 m | 14,951 |
| PATAPSCO RIVER | Maryland | Fair | 1992 | 128.0 m | 14,929 |
| NORTHEAST CREEK | Maryland | Fair | 1939 | 41.8 m | 14,917 |
| LITTLE NORTHEAST CREEK | Maryland | Fair | 1939 | 34.7 m | 14,917 |
| MD 170 | Maryland | Fair | 1957 | 61.9 m | 14,912 |
| BARNABY RUN | Maryland | Fair | 1959 | 9.1 m | 14,865 |
| BEAR CREEK | Maryland | Fair | 1975 | 1,190.5 m | 14,819 |
| LITTLE GUNPOWDER FALLS | Maryland | Good | 1935 | 30.4 m | 14,805 |
| LITTLE GUNPOWDER FALLS | Maryland | Good | 1935 | 30.4 m | 14,805 |
| GUNPOWDER FALLS | Maryland | Good | 1935 | 60.6 m | 14,805 |
| GUNPOWDER FALLS | Maryland | Good | 1935 | 60.6 m | 14,805 |
| TRIB TO PATUXENT RIVER | Maryland | Good | 1927 | 20.7 m | 14,730 |
| LITTLE PAINT BRANCH | Maryland | Fair | 1969 | 13.1 m | 14,725 |
| CSX TRANS. MD 61 | Maryland | Fair | 1965 | 142.3 m | 14,721 |
| IS 70 | Maryland | Fair | 1966 | 68.9 m | 14,721 |
| IS 270 & NB C-D ROAD | Maryland | Good | 1989 | 97.8 m | 14,642 |
| IS 270 & NB C-D ROAD | Maryland | Good | 1989 | 97.8 m | 14,642 |
| TRIBUTARY TO HERRING RUN | Maryland | Fair | 1969 | 8.8 m | 14,613 |
| MD 200 (ICC) | Maryland | Good | 2010 | 70.4 m | 14,607 |
| BEAR BRANCH | Maryland | Good | 1972 | 21.3 m | 14,590 |
| US 301 RAMPS S-W & N-E | Maryland | Good | 1992 | 92.7 m | 14,577 |
| IS 595 RAMP N-E(5) | Maryland | Good | 1992 | 29.0 m | 14,577 |
| MD 3 & RAMP S-W(1) | Maryland | Good | 1992 | 68.6 m | 14,577 |
| TRIBUTARY TO NORTHEAST B | Maryland | Good | 2007 | 12.8 m | 14,565 |
| LONG BRANCH | Maryland | Fair | 1949 | 8.0 m | 14,551 |
| US 50/US 301 | Maryland | Fair | 1991 | 59.4 m | 14,550 |
| PIKE BRANCH | Maryland | Good | 2003 | 8.4 m | 14,501 |
| WATTS BRANCH TRIBUTARY | Maryland | Fair | 1971 | 6.4 m | 14,464 |
| IS 97 | Maryland | Fair | 1989 | 67.4 m | 14,460 |
| TRIB TO NORTHWEST BRANCH | Maryland | Fair | 1962 | 8.8 m | 14,451 |
| INDIAN CREEK | Maryland | Fair | 1984 | 17.1 m | 14,447 |
| IS 81 | Maryland | Fair | 1958 | 77.1 m | 14,431 |
| NORFOLK SOUTHERN RAILROA | Maryland | Fair | 1900 | 22.9 m | 14,403 |
| GUNPOWDER FALLS | Maryland | Good | 1998 | 75.6 m | 14,402 |
| US 40 EBR | Maryland | Good | 2012 | 38.1 m | 14,400 |
| IS 81 | Maryland | Fair | 1965 | 101.2 m | 14,341 |
| BUFFALO RUN | Maryland | Fair | 1975 | 13.3 m | 14,341 |
| NORTHEAST CREEK | Maryland | Fair | 1939 | 41.8 m | 14,332 |
| LITTLE NORTHEAST CREEK | Maryland | Fair | 1939 | 34.7 m | 14,332 |
| CENTURY BOULEVARD | Maryland | Good | 1995 | 57.3 m | 14,319 |
| I-270 | Maryland | Good | 1995 | 98.1 m | 14,319 |
| IS 370 | Maryland | Good | 1989 | 93.3 m | 14,302 |
| LITTLE OWENS CREEK | Maryland | Fair | 1954 | 12.2 m | 14,250 |
| SUSQUEHANNA RIVER | Maryland | Fair | 1927 | 1,367.9 m | 14,243 |
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.