Haakon County Bridge Report Card

Haakon County scores 61 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D61 / 100

Local infrastructure snapshot

Haakon County, South Dakota

Haakon County has 69 bridges in the National Bridge Inventory, with 8 rated poor and 3 rated scour-critical. Its poor-condition share of 11.6% is at or below the 16.1% statewide average. Poor-condition bridges carry about 1,501 daily vehicle crossings.

69Total Bridges

8Poor (11.6%)

38Fair (55.1%)

3Scour-Critical

Quote-Ready Local Facts

11.6%of county bridges are in poor condition, compared with 16.1% statewide and 6.7% nationally.

1,501daily vehicle crossings are on poor-condition bridges in the county.

3bridges are rated scour-critical, or 4.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Haakon County a Bridge Condition Exposure Score of 61/100 (D). The county has 69 bridges in the National Bridge Inventory, including 8 in poor condition and 3 rated scour-critical. Poor-condition bridges carry about 1,501 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	11.6%	23.2
Poor-condition traffic exposure	25	7.9% of measured traffic	5.9
Scour-critical bridge share	20	4.3%	8.7
Average age vs national baseline	10	50 years vs 48 nationally	0.8
Traffic-data completeness	5	19,029 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	11.6%
State Poor-Condition Share	16.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	4.3%
Average Bridge Age	50 years
Poor-Condition Traffic Exposure	1,501 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUs014 over Belcher Ck — 660 vehicles/day Oldest Listed BridgeUs014 Ef over Lone Tree Ck — built in 1920 All County BridgesBrowse every bridge record in Haakon County.

Top Bridges to Watch in Haakon County

Bridge	Reason	Condition	Daily Traffic	Year Built
IRR Sd034 over Cheyenne Rv	Poor condition + traffic exposure	Poor	567	1962
Us014 over Belcher Ck	Poor condition + traffic exposure	Poor	660	1955
10 Mile Road over Mexican Ck	Poor condition + traffic exposure	Poor	58	1950
Fas 6253 over North Fork Bad Rv	Poor condition + traffic exposure	Poor	48	1950
Fas 6253 over Ash Ck	Poor condition + traffic exposure	Poor	48	1955
Four Corners Road over Cheyenne Rv	Poor condition + traffic exposure	Poor	45	1930
Main Street over Mitchell Ck	Poor condition + traffic exposure	Poor	45	1955
County RD over Ck	Poor condition + traffic exposure	Poor	30	1941
Us014 over Mitchell Ck	Scour-critical foundation rating	Fair	650	1960
Sd063 over Hermaphrodite Ck	Scour-critical foundation rating	Good	405	1981

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.