Hughes County Bridge Report Card

Hughes County scores 30 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F30 / 100

Local infrastructure snapshot

Hughes County, South Dakota

Hughes County has 40 bridges in the National Bridge Inventory, with 8 rated poor and 4 rated scour-critical. Its poor-condition share of 20.0% is above the 16.1% statewide average. Poor-condition bridges carry about 8,140 daily vehicle crossings.

40Total Bridges

8Poor (20.0%)

15Fair (37.5%)

4Scour-Critical

Quote-Ready Local Facts

20.0%of county bridges are in poor condition, compared with 16.1% statewide and 6.7% nationally.

8,140daily vehicle crossings are on poor-condition bridges in the county.

4bridges are rated scour-critical, or 10.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Hughes County a Bridge Condition Exposure Score of 30/100 (F). The county has 40 bridges in the National Bridge Inventory, including 8 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 8,140 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	20.0%	40.0
Poor-condition traffic exposure	25	13.0% of measured traffic	9.7
Scour-critical bridge share	20	10.0%	20.0
Average age vs national baseline	10	46 years vs 48 nationally	0.0
Traffic-data completeness	5	62,623 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	20.0%
State Poor-Condition Share	16.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	10.0%
Average Bridge Age	46 years
Poor-Condition Traffic Exposure	8,140 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeCapitol AVE over Capitol Lake Outlet — 7,155 vehicles/day Oldest Listed BridgeAdams Street over Ck — built in 1925 All County BridgesBrowse every bridge record in Hughes County.

Top Bridges to Watch in Hughes County

Bridge	Reason	Condition	Daily Traffic	Year Built
Sd034 over Chapelle Ck	Poor condition + traffic exposure	Poor	691	1949
Capitol AVE over Capitol Lake Outlet	Poor condition + traffic exposure	Poor	7,155	1950
321 Avenue over Chapelle Ck	Poor condition + traffic exposure	Poor	99	1963
311 Avenue over South Medicine Ck	Poor condition + traffic exposure	Poor	96	1964
310 Avenue over North Medicine Ck	Poor condition + traffic exposure	Poor	33	1934
314 Avenue over Chapelle Ck	Poor condition + traffic exposure	Poor	33	1961
Adams Street over Ck	Poor condition + traffic exposure	Poor	20	1925
314 Avenue over South Medicine Ck	Poor condition + traffic exposure	Poor	13	1961
Us014 over South Medicine Ck	Scour-critical foundation rating	Fair	1,914	1951
Sd034 over Dry Run Ck	Scour-critical foundation rating	Fair	1,578	1955

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.