Jefferson County Bridge Report Card

Jefferson 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

Jefferson County, Missouri

Jefferson County has 410 bridges in the National Bridge Inventory, with 10 rated poor and 3 rated scour-critical. Its poor-condition share of 2.4% is at or below the 8.8% statewide average. Poor-condition bridges carry about 23,156 daily vehicle crossings.

410Total Bridges

10Poor (2.4%)

257Fair (62.7%)

3Scour-Critical

Quote-Ready Local Facts

2.4%of county bridges are in poor condition, compared with 8.8% statewide and 6.7% nationally.

23,156daily vehicle crossings are on poor-condition bridges in the county.

3bridges are rated scour-critical, or 0.7% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Jefferson County a Bridge Condition Exposure Score of 93/100 (A). The county has 410 bridges in the National Bridge Inventory, including 10 in poor condition and 3 rated scour-critical. Poor-condition bridges carry about 23,156 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	2.4%	4.9
Poor-condition traffic exposure	25	0.7% of measured traffic	0.5
Scour-critical bridge share	20	0.7%	1.5
Average age vs national baseline	10	43 years vs 48 nationally	0.0
Traffic-data completeness	5	3,254,204 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	2.4%
State Poor-Condition Share	8.8%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.7%
Average Bridge Age	43 years
Poor-Condition Traffic Exposure	23,156 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUS 61 S over Brauhn CR — 5,707 vehicles/day Oldest Listed BridgeJohn Mckeever RD over Labarque CR — built in 1900 All County BridgesBrowse every bridge record in Jefferson County.

Top Bridges to Watch in Jefferson County

Bridge	Reason	Condition	Daily Traffic	Year Built
US 61 S over Br Of Brauhn CR	Poor condition + traffic exposure	Poor	5,707	1900
US 61 S over Brauhn CR	Poor condition + traffic exposure	Poor	5,707	1923
US 61 S over Gibson CR	Poor condition + traffic exposure	Poor	5,707	1935
US 61 S over Joachim CR	Poor condition + traffic exposure	Poor	4,488	1933
Eime RD over Trib Of Big Rvr	Poor condition + traffic exposure	Poor	305	1900
De Witt ST over Tanyard Br	Poor condition + traffic exposure	Poor	300	1900
Commerce DR over Black CR	Poor condition + traffic exposure	Poor	300	1986
Regina RD over Trib Of Belew CR	Poor condition + traffic exposure	Poor	300	1995
Harness RD over Plattin CR	Poor condition + traffic exposure	Poor	242	1906
Harmony Hills DR over Pomme CR	Poor condition + traffic exposure	Poor	100	1964

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.