Macoupin County Bridge Report Card

Macoupin County scores 55 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F55 / 100

Local infrastructure snapshot

Macoupin County, Illinois

Macoupin County has 240 bridges in the National Bridge Inventory, with 40 rated poor and 0 rated scour-critical. Its poor-condition share of 16.7% is above the 9.5% statewide average. Poor-condition bridges carry about 16,565 daily vehicle crossings.

240Total Bridges

40Poor (16.7%)

111Fair (46.2%)

0Scour-Critical

Quote-Ready Local Facts

16.7%of county bridges are in poor condition, compared with 9.5% statewide and 6.7% nationally.

16,565daily 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 Macoupin County a Bridge Condition Exposure Score of 55/100 (F). The county has 240 bridges in the National Bridge Inventory, including 40 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 16,565 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	16.7%	33.3
Poor-condition traffic exposure	25	8.9% of measured traffic	6.6
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	59 years vs 48 nationally	4.6
Traffic-data completeness	5	187,050 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	16.7%
State Poor-Condition Share	9.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	59 years
Poor-Condition Traffic Exposure	16,565 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeIl 111 over Piasa Creek — 4,200 vehicles/day Oldest Listed BridgeTr 203 over Creek — built in 1899 All County BridgesBrowse every bridge record in Macoupin County.

Top Bridges to Watch in Macoupin County

Bridge	Reason	Condition	Daily Traffic	Year Built
Il 111 over Piasa Creek	Poor condition + traffic exposure	Poor	4,200	1929
Fas 736 over Girder Br	Poor condition + traffic exposure	Poor	2,650	1919
Fas 0736 over Wood River	Poor condition + traffic exposure	Poor	1,900	1932
Bunkr Hil Stuntn R over Paddock Creek	Poor condition + traffic exposure	Poor	1,250	1980
Fas 732 over Otter Lake	Poor condition + traffic exposure	Poor	950	1968
Staunton Bunkr Hil over Br. Sherrycreek	Poor condition + traffic exposure	Poor	900	1970
9 Mi. Lane over Sugar Creek	Poor condition + traffic exposure	Poor	650	1932
Tr 395 over Fai 55	Poor condition + traffic exposure	Poor	650	1973
Ch 36 over E.fk. Otter Ck.	Poor condition + traffic exposure	Poor	450	1959
Ch 29 over Cahaoka Creek	Poor condition + traffic exposure	Poor	350	1975

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.