Jefferson County Bridge Report Card

Jefferson County scores 70 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C70 / 100

Local infrastructure snapshot

Jefferson County, Pennsylvania

Jefferson County has 201 bridges in the National Bridge Inventory, with 14 rated poor and 12 rated scour-critical. Its poor-condition share of 7.0% is at or below the 12.1% statewide average. Poor-condition bridges carry about 13,626 daily vehicle crossings.

201Total Bridges

14Poor (7.0%)

128Fair (63.7%)

12Scour-Critical

Quote-Ready Local Facts

7.0%of county bridges are in poor condition, compared with 12.1% statewide and 6.7% nationally.

13,626daily vehicle crossings are on poor-condition bridges in the county.

12bridges are rated scour-critical, or 6.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Jefferson County a Bridge Condition Exposure Score of 70/100 (C). The county has 201 bridges in the National Bridge Inventory, including 14 in poor condition and 12 rated scour-critical. Poor-condition bridges carry about 13,626 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	7.0%	13.9
Poor-condition traffic exposure	25	2.7% of measured traffic	2.1
Scour-critical bridge share	20	6.0%	11.9
Average age vs national baseline	10	53 years vs 48 nationally	2.2
Traffic-data completeness	5	497,689 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	7.0%
State Poor-Condition Share	12.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	6.0%
Average Bridge Age	53 years
Poor-Condition Traffic Exposure	13,626 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSr0080 EB over North Fork & Wat Plnt RD — 12,277 vehicles/day Oldest Listed BridgeT-386 Dobson RD over Big Run — 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
Sr3031 over Lick Run	Poor condition + traffic exposure	Poor	279	1954
Sr4006 over North Fork Creek	Poor condition + traffic exposure	Poor	197	1961
T-353 Bottom RD over Mill Run	Poor condition + traffic exposure	Poor	50	1909
T-396 Seldom Seen over Coder Run	Poor condition + traffic exposure	Poor	50	1914
T-472 Humpback RD over North Fork Creek	Poor condition + traffic exposure	Poor	50	1935
T-346 Cathers Run over Cathers Run	Poor condition + traffic exposure	Poor	50	1936
Sr0080 EB over North Fork & Wat Plnt RD	Poor condition + traffic exposure	Poor	12,277	1962
Sr3003 over Cherry Run	Poor condition + traffic exposure	Poor	254	1982
Sr3003 over Redbank Creek	Poor condition + traffic exposure	Poor	244	1938
Anderson Road over Runaway Run	Poor condition + traffic exposure	Poor	50	1911

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.