Monroe County Bridge Report Card

Monroe County scores 74 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C74 / 100

Local infrastructure snapshot

Monroe County, Illinois

Monroe County has 132 bridges in the National Bridge Inventory, with 11 rated poor and 2 rated scour-critical. Its poor-condition share of 8.3% is at or below the 9.5% statewide average. Poor-condition bridges carry about 33,850 daily vehicle crossings.

132Total Bridges

11Poor (8.3%)

42Fair (31.8%)

2Scour-Critical

Quote-Ready Local Facts

8.3%of county bridges are in poor condition, compared with 9.5% statewide and 6.7% nationally.

33,850daily vehicle crossings are on poor-condition bridges in the county.

2bridges are rated scour-critical, or 1.5% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Monroe County a Bridge Condition Exposure Score of 74/100 (C). The county has 132 bridges in the National Bridge Inventory, including 11 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 33,850 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	8.3%	16.7
Poor-condition traffic exposure	25	8.5% of measured traffic	6.4
Scour-critical bridge share	20	1.5%	3.0
Average age vs national baseline	10	39 years vs 48 nationally	0.0
Traffic-data completeness	5	399,530 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	8.3%
State Poor-Condition Share	9.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.5%
Average Bridge Age	39 years
Poor-Condition Traffic Exposure	33,850 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeFai 255 Nb/eb over Uprr — 25,850 vehicles/day Oldest Listed BridgeMaeystown RD over Maeystown Creek — built in 1881 All County BridgesBrowse every bridge record in Monroe County.

Top Bridges to Watch in Monroe County

Bridge	Reason	Condition	Daily Traffic	Year Built
Fai 255 Nb/eb over Uprr	Poor condition + traffic exposure	Poor	25,850	1984
Fau 9300 over Carr Creek	Poor condition + traffic exposure	Poor	3,750	1995
Fas-1858 (ch-12) over Dennis Hollow	Poor condition + traffic exposure	Poor	1,350	1927
Ms 6190 (carl St) over Creek	Poor condition + traffic exposure	Poor	1,050	1972
Gall Rd/ Fau 9345 over Carr Creek	Poor condition + traffic exposure	Poor	675	1978
Maeystown Mss 1030 over Maeystown Creek	Poor condition + traffic exposure	Poor	350	1941
Bluff Rd/ Fas 1857 over Fults Creek	Poor condition + traffic exposure	Poor	300	1983
Tr 85 Nike RD over Richland Creek	Poor condition + traffic exposure	Poor	275	2001
Tr 96 "m" Road over Richland Creek	Poor condition + traffic exposure	Poor	100	1987
Tr139/outlet RD over Monroe City Ck	Poor condition + traffic exposure	Poor	75	1978

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.