Edmunds County Bridge Report Card

Edmunds County scores 45 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F45 / 100

Local infrastructure snapshot

Edmunds County, South Dakota

Edmunds County has 20 bridges in the National Bridge Inventory, with 5 rated poor and 0 rated scour-critical. Its poor-condition share of 25.0% is above the 16.1% statewide average. Poor-condition bridges carry about 2,992 daily vehicle crossings.

20Total Bridges

5Poor (25.0%)

8Fair (40.0%)

0Scour-Critical

Quote-Ready Local Facts

25.0%of county bridges are in poor condition, compared with 16.1% statewide and 6.7% nationally.

2,992daily vehicle crossings are on poor-condition bridges in the county.

0bridges are rated scour-critical, or 0.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Edmunds County a Bridge Condition Exposure Score of 45/100 (F). The county has 20 bridges in the National Bridge Inventory, including 5 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 2,992 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	25.0%	40.0
Poor-condition traffic exposure	25	19.9% of measured traffic	14.9
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	35 years vs 48 nationally	0.0
Traffic-data completeness	5	15,032 measured daily crossings	0.0

Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.

County Comparisons

County Poor-Condition Share	25.0%
State Poor-Condition Share	16.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	35 years
Poor-Condition Traffic Exposure	2,992 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUs012 over Ck — 2,666 vehicles/day Oldest Listed Bridge142nd Street over Snake Creek — built in 1959 All County BridgesBrowse every bridge record in Edmunds County.

Top Bridges to Watch in Edmunds County

Bridge	Reason	Condition	Daily Traffic	Year Built
Us012 over Ck	Poor condition + traffic exposure	Poor	2,666	1974
142nd Street over Snake Creek	Poor condition + traffic exposure	Poor	150	1959
370th Avenue over Creek	Poor condition + traffic exposure	Poor	114	1974
130th Street over Snake Creek	Poor condition + traffic exposure	Poor	31	1980
369th Avenue over Unnamed Creek	Poor condition + traffic exposure	Poor	31	1980
Us012 over Burlington Northern Rr	High traffic	Fair	3,329	1970
Us012 over Preachers Run Ck	High traffic	Fair	3,329	1974
Us012 over Bnsf Rr	High traffic	Good	2,068	2006
Sd045 over Ck	High traffic	Fair	660	1986
Sd045 over Ck	High traffic	Good	391	1992

Important safety note

Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.