McDonough County Bridge Report Card

McDonough County scores 86 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B86 / 100

Local infrastructure snapshot

McDonough County, Illinois

McDonough County has 210 bridges in the National Bridge Inventory, with 13 rated poor and 0 rated scour-critical. Its poor-condition share of 6.2% is at or below the 9.5% statewide average. Poor-condition bridges carry about 4,120 daily vehicle crossings.

210Total Bridges

13Poor (6.2%)

85Fair (40.5%)

0Scour-Critical

Quote-Ready Local Facts

6.2%of county bridges are in poor condition, compared with 9.5% statewide and 6.7% nationally.

4,120daily 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 McDonough County a Bridge Condition Exposure Score of 86/100 (B). The county has 210 bridges in the National Bridge Inventory, including 13 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 4,120 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	6.2%	12.4
Poor-condition traffic exposure	25	2.8% of measured traffic	2.1
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	44 years vs 48 nationally	0.0
Traffic-data completeness	5	148,450 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	6.2%
State Poor-Condition Share	9.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	44 years
Poor-Condition Traffic Exposure	4,120 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeIll 9 over Drowning Fork — 1,850 vehicles/day Oldest Listed BridgeTr 268 over Town Creek — built in 1899 All County BridgesBrowse every bridge record in McDonough County.

Top Bridges to Watch in McDonough County

Bridge	Reason	Condition	Daily Traffic	Year Built
Ill 9 over Drowning Fork	Poor condition + traffic exposure	Poor	1,850	1960
Fas 441 - Ch 9 over Carter CR	Poor condition + traffic exposure	Poor	750	1955
Ms-1505 Bulingtonr over E Fork Lamoine River	Poor condition + traffic exposure	Poor	550	1931
Tr 418 over Drowning Fork	Poor condition + traffic exposure	Poor	250	1976
Tr 408 over Drowning Fork	Poor condition + traffic exposure	Poor	225	1977
Fas 1439 - Ch 8 over Camp Creek	Poor condition + traffic exposure	Poor	200	1937
Tr 225 over E.f. Lamoine River	Poor condition + traffic exposure	Poor	125	1900
Tr 200 over Troublesome Creek	Poor condition + traffic exposure	Poor	50	1900
Tr 15 over N. Fork Crooked Cree	Poor condition + traffic exposure	Poor	50	1959
Tr 234 over Camp Creek	Poor condition + traffic exposure	Poor	25	1900

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.