Hardin County Bridge Report Card

Hardin County scores 81 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B81 / 100

Local infrastructure snapshot

Hardin County, Illinois

Hardin County has 61 bridges in the National Bridge Inventory, with 4 rated poor and 0 rated scour-critical. Its poor-condition share of 6.6% is at or below the 9.5% statewide average. Poor-condition bridges carry about 1,635 daily vehicle crossings.

61Total Bridges

4Poor (6.6%)

22Fair (36.1%)

0Scour-Critical

Quote-Ready Local Facts

6.6%of county bridges are in poor condition, compared with 9.5% statewide and 6.7% nationally.

1,635daily 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 Hardin County a Bridge Condition Exposure Score of 81/100 (B). The county has 61 bridges in the National Bridge Inventory, including 4 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 1,635 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	6.6%	13.1
Poor-condition traffic exposure	25	6.8% of measured traffic	5.1
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	50 years vs 48 nationally	0.7
Traffic-data completeness	5	24,115 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	6.6%
State Poor-Condition Share	9.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	50 years
Poor-Condition Traffic Exposure	1,635 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeIll 146 over Hosick Creek — 1,500 vehicles/day Oldest Listed BridgeMarket Street over Unnamed Stream — built in 1900 All County BridgesBrowse every bridge record in Hardin County.

Top Bridges to Watch in Hardin County

Bridge	Reason	Condition	Daily Traffic	Year Built
Ill 146 over Hosick Creek	Poor condition + traffic exposure	Poor	1,500	1953
Fas 2934-fh 141 over Big Creek	Poor condition + traffic exposure	Poor	100	1968
Tr 85 over Branch Of Big Creek	Poor condition + traffic exposure	Poor	25	1968
Market Street over Unnamed Stream	Poor condition + traffic exposure	Poor	10	1900
Ill 146 over Big Creek	High traffic	Good	1,900	2004
Ill 34 & Ill 146 over Threemile Creek	High traffic	Fair	1,550	2009
Ill 146 over Stream	High traffic	Good	1,500	1954
Ill 146 over Peters Creek	High traffic	Good	1,500	2013
Ill 34 over Rose Creek	High traffic	Fair	1,400	1924
Ill 34 over Hobbs Creek	High traffic	Fair	1,200	1923

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.