Knox County Bridge Report Card

Knox County scores 80 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B80 / 100

Local infrastructure snapshot

Knox County, Indiana

Knox County has 290 bridges in the National Bridge Inventory, with 13 rated poor and 15 rated scour-critical. Its poor-condition share of 4.5% is at or below the 5.3% statewide average. Poor-condition bridges carry about 1,536 daily vehicle crossings.

290Total Bridges

13Poor (4.5%)

160Fair (55.2%)

15Scour-Critical

Quote-Ready Local Facts

4.5%of county bridges are in poor condition, compared with 5.3% statewide and 6.7% nationally.

1,536daily vehicle crossings are on poor-condition bridges in the county.

15bridges are rated scour-critical, or 5.2% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Knox County a Bridge Condition Exposure Score of 80/100 (B). The county has 290 bridges in the National Bridge Inventory, including 13 in poor condition and 15 rated scour-critical. Poor-condition bridges carry about 1,536 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	4.5%	9.0
Poor-condition traffic exposure	25	0.3% of measured traffic	0.2
Scour-critical bridge share	20	5.2%	10.3
Average age vs national baseline	10	49 years vs 48 nationally	0.7
Traffic-data completeness	5	554,569 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	4.5%
State Poor-Condition Share	5.3%
National Poor-Condition Share	6.7%
County Scour-Critical Share	5.2%
Average Bridge Age	49 years
Poor-Condition Traffic Exposure	1,536 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeTr 257 over Wabash River — 750 vehicles/day Oldest Listed BridgeOil Field Road over Busseron Creek — built in 1895 All County BridgesBrowse every bridge record in Knox County.

Top Bridges to Watch in Knox County

Bridge	Reason	Condition	Daily Traffic	Year Built
Tr 257 over Wabash River	Poor condition + traffic exposure	Poor	750	1906
Oil Field Road over Busseron Creek	Poor condition	Poor	0	1895
E Governors Road over Longpond And White River	Poor condition	Poor	0	1900
Pieper Road over Purdy Marsh	Poor condition	Poor	0	1905
Hazelton Road over White River/local Road	Poor condition	Poor	0	1945
Nimnicht Road over Nimnicht Creek	Poor condition + traffic exposure	Poor	170	1995
Sand Road over Black Creek	Poor condition + traffic exposure	Poor	153	1920
Watson Road over Branch Of Mariah Creek	Poor condition + traffic exposure	Poor	141	1925
Hartley Road over Branch Of White River	Poor condition + traffic exposure	Poor	110	1990
Lucky Point Road over Kessinger Ditch	Poor condition + traffic exposure	Poor	110	1995

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.