Alexander County Bridge Report Card

Alexander County scores 77 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C77 / 100

Local infrastructure snapshot

Alexander County, Illinois

Alexander County has 93 bridges in the National Bridge Inventory, with 8 rated poor and 0 rated scour-critical. Its poor-condition share of 8.6% is at or below the 9.5% statewide average. Poor-condition bridges carry about 9,750 daily vehicle crossings.

93Total Bridges

8Poor (8.6%)

59Fair (63.4%)

0Scour-Critical

Quote-Ready Local Facts

8.6%of county bridges are in poor condition, compared with 9.5% statewide and 6.7% nationally.

9,750daily 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 Alexander County a Bridge Condition Exposure Score of 77/100 (C). The county has 93 bridges in the National Bridge Inventory, including 8 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 9,750 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	8.6%	17.2
Poor-condition traffic exposure	25	8.1% of measured traffic	6.1
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	119,981 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	8.6%
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	9,750 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUS 60 & 62 over Mississippi R — 3,450 vehicles/day Oldest Listed BridgeFas 946 over Pigeon Roost Creek — built in 1900 All County BridgesBrowse every bridge record in Alexander County.

Top Bridges to Watch in Alexander County

Bridge	Reason	Condition	Daily Traffic	Year Built
US 60 & 62 over Mississippi R	Poor condition + traffic exposure	Poor	3,450	1929
Ill 3 over Drainage Ditch	Poor condition + traffic exposure	Poor	2,500	1948
Fas 945 over Clear Creek Ditch	Poor condition + traffic exposure	Poor	1,100	1959
Fas 943 over Sandy Creek W Fork	Poor condition + traffic exposure	Poor	1,100	1983
Fas 941 over Mill Creek	Poor condition + traffic exposure	Poor	800	1980
Fas 943 over Ambeer Creek	Poor condition + traffic exposure	Poor	650	1982
Tr 150 over Hartline Creek	Poor condition + traffic exposure	Poor	125	1980
Twp RD 106 over East Fork Sandy Ck	Poor condition + traffic exposure	Poor	25	1974
Fai 57 over Mississippi River	High traffic	Fair	15,000	1978
Fap 312-il 146 over Mississippi River	High traffic	Fair	9,350	2003

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.