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 |
|---|---|---|---|---|---|
| HALETHORPE FARMS RD | Maryland | Fair | 1957 | 27.4 m | 8,846 |
| TRANSWAY ROAD | Maryland | Fair | 1957 | 33.2 m | 8,846 |
| ROCK CREEK TRIBUTARY | Maryland | Fair | 1968 | 6.2 m | 8,841 |
| ROCK CREEK TRIBUTARY | Maryland | Fair | 1968 | 8.6 m | 8,841 |
| IS 95/495 & RAMP A(8) | Maryland | Good | 2005 | 147.8 m | 8,837 |
| I-95 | Maryland | Good | 2011 | 150.4 m | 8,815 |
| PATAPSCO RIVER | Maryland | Fair | 1961 | 92.4 m | 8,800 |
| TONY TANK LAKE | Maryland | Fair | 1955 | 13.2 m | 8,796 |
| PARKING LOTS | Maryland | Fair | 1976 | 150.9 m | 8,794 |
| NORTHEAST BRANCH | Maryland | Poor | 1964 | 42.7 m | 8,781 |
| TUCKERS BRANCH | Maryland | Good | 1976 | 20.1 m | 8,770 |
| SOUTH BRANCH PATAPSCO RI | Maryland | Fair | 1973 | 34.7 m | 8,770 |
| PINEY BRANCH | Maryland | Fair | 1982 | 10.7 m | 8,770 |
| IS 495X NBR | Maryland | Good | 1962 | 62.5 m | 8,755 |
| TRIBUTARY TO GWYNNS FALL | Maryland | Fair | 1954 | 7.0 m | 8,752 |
| BR OF MATTAWOMAN CREEK | Maryland | Poor | 1951 | 8.2 m | 8,750 |
| ROCK CREEK | Maryland | Fair | 1962 | 46.9 m | 8,742 |
| SMITHVILLE DITCH | Maryland | Fair | 1957 | 8.0 m | 8,721 |
| JONES FALLS | Maryland | Fair | 1957 | 6.8 m | 8,700 |
| SEVERN RUN | Maryland | Fair | 1933 | 12.4 m | 8,680 |
| JENNINGS RUN | Maryland | Good | 1957 | 24.7 m | 8,670 |
| ROCK CREEK | Maryland | Fair | 1966 | 13.4 m | 8,663 |
| US 40 | Maryland | Fair | 1941 | 67.7 m | 8,661 |
| BENS RUN | Maryland | Fair | 1972 | 11.6 m | 8,650 |
| LITTLE PATUXENT RIVER | Maryland | Good | 1987 | 48.4 m | 8,650 |
| PLUMTREE BRANCH | Maryland | Poor | 1987 | 15.0 m | 8,641 |
| CABIN BRANCH | Maryland | Fair | 1970 | 7.9 m | 8,631 |
| AMTRAK | Maryland | Fair | 1943 | 54.9 m | 8,627 |
| AMTRAK | Maryland | Fair | 1943 | 54.9 m | 8,626 |
| BIG ELK CREEK | Maryland | Fair | 1932 | 33.8 m | 8,616 |
| SILVER CREEK | Maryland | Good | 2022 | 15.2 m | 8,611 |
| ROCK CREEK TRIBUTARY | Maryland | Fair | 1965 | 13.7 m | 8,611 |
| BRIER DITCH | Maryland | Fair | 1970 | 7.3 m | 8,610 |
| TRIBUTARY TO WHITE MARSH | Maryland | Fair | 1981 | 12.2 m | 8,604 |
| HERBERT RUN | Maryland | Fair | 1957 | 70.6 m | 8,600 |
| IS 495 | Maryland | Fair | 1962 | 72.5 m | 8,600 |
| CALVERT ACCESS ROAD | Maryland | Fair | 1957 | 36.6 m | 8,600 |
| LITTLE PATUXENT RIVER | Maryland | Good | 1982 | 101.9 m | 8,593 |
| SLIGO CREEK TRIBUTARY | Maryland | Poor | 1961 | 10.4 m | 8,590 |
| IS 97 | Maryland | Good | 2004 | 83.5 m | 8,580 |
| BRANCH OF FURNACE CREEK | Maryland | Fair | 1975 | 8.4 m | 8,562 |
| W BRANCH OF HERRING RUN | Maryland | Fair | 1930 | 9.1 m | 8,543 |
| PURPLE LINE | Maryland | Good | 2019 | 37.8 m | 8,542 |
| CARROLL CREEK | Maryland | Good | 1995 | 13.4 m | 8,541 |
| WESTERN RUN | Maryland | Fair | 1952 | 25.6 m | 8,531 |
| CABIN JOHN CREEK | Maryland | Fair | 1991 | 8.5 m | 8,530 |
| MD 10 | Maryland | Fair | 1988 | 81.4 m | 8,520 |
| LITTLE GUNPOWDER FALLS | Maryland | Fair | 1928 | 31.7 m | 8,520 |
| WHITEMARSH BRANCH | Maryland | Fair | 1961 | 8.9 m | 8,511 |
| BIG ELK CREEK | Maryland | Good | 2020 | 44.1 m | 8,500 |
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.