Franklin County Bridge Report Card

Franklin County scores 93 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A93 / 100

Local infrastructure snapshot

Franklin County, Illinois

Franklin County has 310 bridges in the National Bridge Inventory, with 9 rated poor and 0 rated scour-critical. Its poor-condition share of 2.9% is at or below the 9.5% statewide average. Poor-condition bridges carry about 12,425 daily vehicle crossings.

310Total Bridges

9Poor (2.9%)

63Fair (20.3%)

0Scour-Critical

Quote-Ready Local Facts

2.9%of county bridges are in poor condition, compared with 9.5% statewide and 6.7% nationally.

12,425daily 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 Franklin County a Bridge Condition Exposure Score of 93/100 (A). The county has 310 bridges in the National Bridge Inventory, including 9 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 12,425 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	2.9%	5.8
Poor-condition traffic exposure	25	2.2% of measured traffic	1.7
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	42 years vs 48 nationally	0.0
Traffic-data completeness	5	554,450 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	2.9%
State Poor-Condition Share	9.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	42 years
Poor-Condition Traffic Exposure	12,425 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeIll 154 over Rend Lake — 2,650 vehicles/day Oldest Listed BridgeFas 1880 Crocker R over Little Muddy River — built in 1900 All County BridgesBrowse every bridge record in Franklin County.

Top Bridges to Watch in Franklin County

Bridge	Reason	Condition	Daily Traffic	Year Built
Ill 154 over Rend Lake	Poor condition + traffic exposure	Poor	2,650	1966
Ill 154 over Rend Lake	Poor condition + traffic exposure	Poor	2,650	1966
Ill 154 over Rend Lake	Poor condition + traffic exposure	Poor	2,650	1967
Ill 34 over Halltown Creek	Poor condition + traffic exposure	Poor	2,100	1929
Fas 868 (ewing Rd) over Sugar Camp Creek	Poor condition + traffic exposure	Poor	1,050	1936
Fau 9452 over Sugar Creek	Poor condition + traffic exposure	Poor	1,050	1964
Fas 875 over Middle Fork Creek	Poor condition + traffic exposure	Poor	125	1988
Tr 229a over Anoy Creek	Poor condition + traffic exposure	Poor	100	1986
Tr 388 over Thompson Reservoir	Poor condition + traffic exposure	Poor	50	1900
I 57 over Tr 213 Linn RD	High traffic	Fair	37,200	1962

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.