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
GUNPOWDER FALLS	Maryland	Fair	1963	99.1 m	178,830
MD 5	Maryland	Fair	1963	104.5 m	177,270
BENSON AVENUE	Maryland	Good	2004	39.6 m	177,072
WEST BRANCH HERBERT RUN	Maryland	Fair	1969	12.2 m	176,834
SULPHUR SPRING ROAD	Maryland	Fair	1971	45.1 m	176,796
IS 695 RAMP C	Maryland	Fair	1969	43.3 m	176,796
SULPHUR SPRING ROAD	Maryland	Fair	1971	40.5 m	176,796
CARVILLE & OREGON AVENUE	Maryland	Fair	1970	76.8 m	176,796
IS 195	Maryland	Fair	1970	142.3 m	176,796
IS 195	Maryland	Fair	1970	142.3 m	176,796
OAKLAND ROAD	Maryland	Fair	1969	39.9 m	176,796
OAKLAND ROAD	Maryland	Fair	1969	39.9 m	176,796
CARVILLE & OREGON AVENUE	Maryland	Fair	1970	76.8 m	176,796
US 1 AMTRAK POTOMAC AV	Maryland	Fair	1970	149.0 m	176,796
GREENSPRING AVENUE	Maryland	Fair	1961	40.2 m	176,700
MD 25A	Maryland	Good	2005	65.5 m	176,700
SLAUGHTERHOUSE BRANCH	Maryland	Fair	1961	6.7 m	176,700
SUITLAND ROAD	Maryland	Good	2016	45.0 m	175,200
CSX PATAPSCO RIVER CO	Maryland	Fair	1968	248.4 m	172,509
CSX PATAPSCO RIVER CO	Maryland	Fair	1968	281.6 m	172,509
HONEYGO RUN	Maryland	Fair	1963	8.1 m	172,113
GUNPOWDER FALLS	Maryland	Fair	1963	11.7 m	172,113
MD 117	Maryland	Fair	1954	37.5 m	171,940
REDHOUSE RUN	Maryland	Fair	1960	14.4 m	168,940
EAST BRANCH HERBERT RUN	Maryland	Fair	1969	13.3 m	165,744
WINTERS RUN RD WINTERS R	Maryland	Fair	1963	91.3 m	161,591
IS 97 EBR	Maryland	Fair	1987	60.0 m	159,360
MD 41	Maryland	Fair	1961	50.0 m	157,940
GR SENECA CR & GAME PRE	Maryland	Fair	1954	70.4 m	154,247
MD 124	Maryland	Fair	1955	53.0 m	154,247
IS 95	Maryland	Good	1958	79.6 m	153,970
MD 542	Maryland	Fair	1961	82.1 m	149,621
CROMWELL BRIDGE ROAD	Maryland	Fair	1957	57.0 m	149,261
ON RAMP FROM FALLS ROAD	Maryland	Fair	1959	36.0 m	147,849
IS 95/IS 495 RAMPS B & T	Maryland	Good	2007	47.5 m	146,744
IS 95/IS 495 RAMP Q	Maryland	Good	2008	36.3 m	146,744
RAMP Q(1)	Maryland	Good	2005	37.5 m	146,744
JOPPA ROAD	Maryland	Fair	1961	39.4 m	144,880
BALD HILL BRANCH	Maryland	Good	1955	6.7 m	144,254
MD 414	Maryland	Fair	1963	68.0 m	143,828
HENSON CREEK	Maryland	Fair	1963	90.5 m	143,828
MD 414	Maryland	Fair	1963	68.0 m	143,828
IS 95/IS 495 RAMPS B & T	Maryland	Good	2004	49.1 m	141,180
IS 95/IS 495 RAMPS B & T	Maryland	Good	2006	47.5 m	141,180
IS 95/IS 495 RAMP Q	Maryland	Good	2006	35.1 m	141,180
PAINT BRANCH	Maryland	Good	1964	28.3 m	139,680
PAINT BRANCH	Maryland	Fair	1964	36.3 m	139,680
TIMONIUM ROAD	Maryland	Fair	1954	40.5 m	137,301
TIMONIUM ROAD	Maryland	Fair	1954	40.5 m	137,301
MD 3 BUSINESS	Maryland	Good	1990	78.0 m	135,900

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.