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.

Bridge	Location	Condition	Year Built	Length	ADT
RCP&E RR	South Dakota	Good	2005	20.1 m	14,488
BR SADDLE CK	South Dakota	Fair	1960	8.9 m	14,270
HARAM CK	South Dakota	Good	1960	7.3 m	14,270
I090	South Dakota	Fair	1983	76.4 m	13,848
BURLINGTON NORTHERN RR	South Dakota	Fair	1993	68.8 m	13,820
SILVER CK	South Dakota	Good	1993	58.6 m	13,820
BIG SIOUX RV DITCH RD	South Dakota	Good	1992	102.3 m	13,820
SILVER CK	South Dakota	Good	1992	58.6 m	13,820
I029 DRAINAGE DITCH	South Dakota	Fair	1961	96.9 m	13,820
BURLINGTON NORTHERN RR	South Dakota	Fair	1992	68.8 m	13,820
DAKOTA & IOWA RR	South Dakota	Good	1993	47.4 m	13,820
DAKOTA & IOWA RR	South Dakota	Good	1992	47.4 m	13,820
I029 DRAINAGE DITCH	South Dakota	Fair	1961	96.9 m	13,820
BIG SIOUX RV DITCH RD	South Dakota	Good	1993	102.3 m	13,820
BIG SIOUX RIVER	South Dakota	Poor	1979	78.5 m	13,800
CK	South Dakota	Good	1960	7.2 m	13,790
HILGERS GULCH	South Dakota	Fair	1969	7.5 m	13,755
SKUNK CREEK	South Dakota	Fair	2003	77.0 m	13,700
DRY RUN CK	South Dakota	Good	2001	8.7 m	13,545
BNSF RR	South Dakota	Fair	2001	60.7 m	13,545
BIG SIOUX RIVER	South Dakota	Fair	1994	84.7 m	13,370
I229	South Dakota	Good	1992	57.8 m	13,170
BNSF RAILROAD	South Dakota	Fair	1990	44.3 m	13,000
CK	South Dakota	Fair	1970	6.9 m	12,968
BIG SIOUX RV	South Dakota	Fair	1995	138.6 m	12,742
RAPID CK	South Dakota	Fair	1962	39.0 m	12,575
3RD AVE BIG SIOUX RVR RR	South Dakota	Fair	1971	481.1 m	12,500
CHIMNEY CANYON RD	South Dakota	Good	2018	60.3 m	12,411
CHIMNEY CANYON RD	South Dakota	Good	2017	60.3 m	12,411
BOXELDER CK	South Dakota	Fair	1973	93.3 m	12,395
BOXELDER CK	South Dakota	Fair	1959	93.3 m	12,395
LITTLE ELK CK	South Dakota	Good	2017	45.9 m	12,320
ELK CK	South Dakota	Good	2017	48.6 m	12,320
LITTLE ELK CK	South Dakota	Good	2018	45.9 m	12,320
ELK CK	South Dakota	Good	2018	48.6 m	12,320
BEAVER CK	South Dakota	Fair	1958	58.5 m	12,315
BNSF RR	South Dakota	Good	2001	44.2 m	12,315
BEAVER CK	South Dakota	Fair	1958	58.5 m	12,315
BNSF RR	South Dakota	Good	2000	44.2 m	12,315
SPLIT ROCK CK	South Dakota	Fair	2017	115.4 m	12,279
SPLIT ROCK CK	South Dakota	Good	2018	115.4 m	12,279
CK	South Dakota	Fair	1966	8.8 m	12,240
CK	South Dakota	Fair	1966	9.4 m	12,240
I029	South Dakota	Good	1996	75.0 m	12,200
SPEARFISH CK	South Dakota	Fair	1966	21.9 m	12,135
CK	South Dakota	Good	1961	6.3 m	11,970
CK	South Dakota	Good	1961	8.9 m	11,970
CK	South Dakota	Good	1961	8.9 m	11,970
DRY RUN CK	South Dakota	Good	1990	9.8 m	11,950
I090 WF & BH NAT CEM RD	South Dakota	Fair	1963	36.3 m	11,863

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.