Jefferson County Bridge Report Card

Jefferson County scores 78 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C78 / 100

Local infrastructure snapshot

Jefferson County, Kentucky

Jefferson County has 677 bridges in the National Bridge Inventory, with 53 rated poor and 0 rated scour-critical. Its poor-condition share of 7.8% is above the 7.5% statewide average. Poor-condition bridges carry about 1,817,432 daily vehicle crossings.

677Total Bridges

53Poor (7.8%)

546Fair (80.6%)

0Scour-Critical

Quote-Ready Local Facts

7.8%of county bridges are in poor condition, compared with 7.5% statewide and 6.7% nationally.

1,817,432daily 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 Jefferson County a Bridge Condition Exposure Score of 78/100 (C). The county has 677 bridges in the National Bridge Inventory, including 53 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 1,817,432 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	7.8%	15.7
Poor-condition traffic exposure	25	8.1% of measured traffic	6.0
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	45 years vs 48 nationally	0.0
Traffic-data completeness	5	22,571,547 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	7.8%
State Poor-Condition Share	7.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	45 years
Poor-Condition Traffic Exposure	1,817,432 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeI-65 over Standiford LN — 159,448 vehicles/day Oldest Listed BridgePark Boundary RD over Mid Fork Beargrass Creek — built in 1901 All County BridgesBrowse every bridge record in Jefferson County.

Top Bridges to Watch in Jefferson County

Bridge	Reason	Condition	Daily Traffic	Year Built
I-65 over Standiford LN	Poor condition + traffic exposure	Poor	159,448	1988
I-64 over Ky 3077 (river Rd)	Poor condition + traffic exposure	Poor	144,000	1965
I-65 over Bradley AVE	Poor condition + traffic exposure	Poor	129,829	1957
I-65 over Hill Csx Rr & Burnett	Poor condition + traffic exposure	Poor	122,766	1957
I-65 over E Kentucky & S Brook ST	Poor condition + traffic exposure	Poor	122,766	1959
I-65 over Jacob Broadway Gray ST	Poor condition + traffic exposure	Poor	84,001	1960
I-65 over Brook ST & Muhammad Ali	Poor condition + traffic exposure	Poor	84,001	1963
I-65 SB Off Ramp over S Floyd ST	Poor condition + traffic exposure	Poor	84,001	1963
I-64 over Ky 3077 & Belvedere	Poor condition + traffic exposure	Poor	83,121	1972
I-64 EB Off Ramp over Northwestern PKWY	Poor condition + traffic exposure	Poor	81,936	1971

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.