Adams County Bridge Report Card

Adams County scores 82 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B82 / 100

Local infrastructure snapshot

Adams County, Illinois

Adams County has 317 bridges in the National Bridge Inventory, with 19 rated poor and 1 rated scour-critical. Its poor-condition share of 6.0% is at or below the 9.5% statewide average. Poor-condition bridges carry about 26,575 daily vehicle crossings.

317Total Bridges

19Poor (6.0%)

169Fair (53.3%)

1Scour-Critical

Quote-Ready Local Facts

6.0%of county bridges are in poor condition, compared with 9.5% statewide and 6.7% nationally.

26,575daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 0.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Adams County a Bridge Condition Exposure Score of 82/100 (B). The county has 317 bridges in the National Bridge Inventory, including 19 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 26,575 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	6.0%	12.0
Poor-condition traffic exposure	25	7.0% of measured traffic	5.2
Scour-critical bridge share	20	0.3%	0.6
Average age vs national baseline	10	49 years vs 48 nationally	0.4
Traffic-data completeness	5	379,790 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	6.0%
State Poor-Condition Share	9.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.3%
Average Bridge Age	49 years
Poor-Condition Traffic Exposure	26,575 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeHarrison Street over Curtis Creek — 6,150 vehicles/day Oldest Listed BridgeTr 0164 over Grindstone Creek — built in 1898 All County BridgesBrowse every bridge record in Adams County.

Top Bridges to Watch in Adams County

Bridge	Reason	Condition	Daily Traffic	Year Built
Il 57 over Mill Creek	Poor condition + traffic exposure	Poor	4,450	1932
Harrison Street over Curtis Creek	Poor condition + traffic exposure	Poor	6,150	1967
Fai 172 SB over Burton Creek	Poor condition + traffic exposure	Poor	4,875	1980
Fai 172 SB over Bn Rr	Poor condition + traffic exposure	Poor	3,675	1976
Fai 172 NB over Bn Rr	Poor condition + traffic exposure	Poor	3,675	1976
Ch 11 over South Forkbear Creek	Poor condition + traffic exposure	Poor	900	1975
Il 61 over Big Neck Creek	Poor condition + traffic exposure	Poor	850	1925
Ch 11 over Mckee Creek	Poor condition + traffic exposure	Poor	725	1988
Ch 14 over Cedar Creek	Poor condition + traffic exposure	Poor	325	1921
Tr 495 over S Quincy Ditch	Poor condition + traffic exposure	Poor	250	1996

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.