Deuel County Bridge Report Card

Deuel County scores 39 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F39 / 100

Local infrastructure snapshot

Deuel County, South Dakota

Deuel County has 72 bridges in the National Bridge Inventory, with 13 rated poor and 11 rated scour-critical. Its poor-condition share of 18.1% is above the 16.1% statewide average. Poor-condition bridges carry about 2,335 daily vehicle crossings.

72Total Bridges

13Poor (18.1%)

43Fair (59.7%)

11Scour-Critical

Quote-Ready Local Facts

18.1%of county bridges are in poor condition, compared with 16.1% statewide and 6.7% nationally.

2,335daily vehicle crossings are on poor-condition bridges in the county.

11bridges are rated scour-critical, or 15.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Deuel County a Bridge Condition Exposure Score of 39/100 (F). The county has 72 bridges in the National Bridge Inventory, including 13 in poor condition and 11 rated scour-critical. Poor-condition bridges carry about 2,335 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	18.1%	36.1
Poor-condition traffic exposure	25	2.5% of measured traffic	1.8
Scour-critical bridge share	20	15.3%	20.0
Average age vs national baseline	10	54 years vs 48 nationally	2.6
Traffic-data completeness	5	94,724 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	18.1%
State Poor-Condition Share	16.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	15.3%
Average Bridge Age	54 years
Poor-Condition Traffic Exposure	2,335 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSd022 over Ck — 1,559 vehicles/day Oldest Listed BridgeTwnshp RD 187th ST over Cobb Ck — built in 1908 All County BridgesBrowse every bridge record in Deuel County.

Top Bridges to Watch in Deuel County

Bridge	Reason	Condition	Daily Traffic	Year Built
Twnshp RD 480 Av over Mud Creek	Poor condition + traffic exposure	Poor	25	1950
Sd022 over Ck	Poor condition + traffic exposure	Poor	1,559	1959
188 Street over Ck	Poor condition + traffic exposure	Poor	381	1930
188 Street over Hidewood Ck	Poor condition + traffic exposure	Poor	90	1978
2nd AVE (gary) over W Br Lac Qui Parle River	Poor condition + traffic exposure	Poor	50	1930
Parle ST (gary) over W Br Lac Qui Parle River	Poor condition + traffic exposure	Poor	50	1950
Twnshp RD 186th ST over Cobb Ck	Poor condition + traffic exposure	Poor	45	1950
Twnshp RD 185th ST over Ck	Poor condition + traffic exposure	Poor	35	1970
Twnshp RD 187th ST over Cobb Ck	Poor condition + traffic exposure	Poor	25	1908
Twnshp RD 483rd Av over Ck	Poor condition + traffic exposure	Poor	25	1930

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.