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Browse Bridge Database

5,883 bridges in the FHWA National Bridge Inventory in South Dakota.

National Bridge Inventory Database

Browse 5,883 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.

Clear
BridgeLocationConditionYear BuiltLengthADT
BIG SIOUX RV South Dakota Fair 1986 69.0 m 1,888
I029 South Dakota Fair 1963 77.4 m 1,888
SUMNER SLOUGH South Dakota Good 2003 6.7 m 1,876
SQUAW CK South Dakota Fair 1977 6.7 m 1,867
I029 South Dakota Fair 1967 77.4 m 1,867
LAKE NORDEN OUTLET South Dakota Fair 1949 22.4 m 1,862
CK South Dakota Good 2008 6.3 m 1,860
LITTLE WHITE RIVER South Dakota Poor 1972 33.5 m 1,851
NEWTON FORK CK South Dakota Fair 1987 7.6 m 1,837
NEWTON FORK CK South Dakota Fair 1987 7.6 m 1,837
SNAKE CK South Dakota Good 2018 13.2 m 1,836
CK South Dakota Good 1956 6.2 m 1,836
DRY CK South Dakota Fair 1957 11.7 m 1,836
LONG CK South Dakota Fair 1952 39.2 m 1,836
CK South Dakota Good 2018 29.3 m 1,836
VERMILLION RV South Dakota Good 2013 52.7 m 1,836
I029 South Dakota Fair 1960 76.9 m 1,836
BIG SIOUX RIVER South Dakota Fair 1977 43.9 m 1,831
I029 South Dakota Fair 1978 110.3 m 1,830
CK South Dakota Good 1997 6.6 m 1,811
EAST FORK VERMILLION RV South Dakota Fair 1983 7.5 m 1,811
CK South Dakota Good 1997 11.4 m 1,811
CK South Dakota Fair 1973 32.3 m 1,803
BELLE FOURCHE RV South Dakota Fair 2002 66.4 m 1,790
SOUTH CANAL South Dakota Good 2002 11.7 m 1,790
CK South Dakota Good 1961 7.6 m 1,790
BATTLE CK South Dakota Good 1954 9.7 m 1,786
CHOTEAU CK South Dakota Fair 1961 24.4 m 1,785
BR CHOTEAU CK South Dakota Good 1960 6.2 m 1,785
LONE WELL CK South Dakota Fair 1956 9.5 m 1,782
ANGOSTURA MAIN CANAL South Dakota Fair 1956 7.1 m 1,782
HURLEY CK South Dakota Good 2019 36.3 m 1,775
EAST FORK VERMILLION RV South Dakota Fair 1947 48.1 m 1,768
CK South Dakota Good 1985 7.3 m 1,758
CK South Dakota Fair 2022 8.0 m 1,756
NORTH FORK YELLOW BANK R South Dakota Good 2023 50.8 m 1,756
COTTONWOOD CK South Dakota Fair 1965 20.4 m 1,746
BIG HOLLOW CK South Dakota Good 1965 22.4 m 1,746
EAST BRULE CK South Dakota Fair 1954 32.2 m 1,745
CK South Dakota Fair 1954 7.1 m 1,745
SOUTH FORK PEARL CK South Dakota Fair 1965 9.5 m 1,743
DRAINAGE DITCH South Dakota Fair 1936 6.3 m 1,738
MOCCASIN CK South Dakota Fair 1972 52.5 m 1,726
MOCCASIN CK South Dakota Fair 1972 47.2 m 1,726
MOCCASIN CK South Dakota Fair 1972 52.5 m 1,726
MOCCASIN CK South Dakota Fair 1971 47.2 m 1,726
CK South Dakota Fair 1954 6.2 m 1,725
ICE BOX CK South Dakota Poor 1964 8.9 m 1,725
CAMPBELL CREEK South Dakota Good 2013 29.7 m 1,720
I090 South Dakota Fair 1965 77.4 m 1,694

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.