Sullivan County Bridge Report Card

Sullivan County scores 63 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D63 / 100

Local infrastructure snapshot

Sullivan County, Pennsylvania

Sullivan County has 118 bridges in the National Bridge Inventory, with 10 rated poor and 9 rated scour-critical. Its poor-condition share of 8.5% is at or below the 12.1% statewide average. Poor-condition bridges carry about 646 daily vehicle crossings.

118Total Bridges

10Poor (8.5%)

56Fair (47.5%)

9Scour-Critical

Quote-Ready Local Facts

8.5%of county bridges are in poor condition, compared with 12.1% statewide and 6.7% nationally.

646daily vehicle crossings are on poor-condition bridges in the county.

9bridges are rated scour-critical, or 7.6% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Sullivan County a Bridge Condition Exposure Score of 63/100 (D). The county has 118 bridges in the National Bridge Inventory, including 10 in poor condition and 9 rated scour-critical. Poor-condition bridges carry about 646 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	8.5%	16.9
Poor-condition traffic exposure	25	1.2% of measured traffic	0.9
Scour-critical bridge share	20	7.6%	15.3
Average age vs national baseline	10	58 years vs 48 nationally	4.0
Traffic-data completeness	5	52,301 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	8.5%
State Poor-Condition Share	12.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	7.6%
Average Bridge Age	58 years
Poor-Condition Traffic Exposure	646 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSR 4012 over Loyalsock Creek — 113 vehicles/day Oldest Listed BridgeSR 4012 over Loyalsock Creek — built in 1850 All County BridgesBrowse every bridge record in Sullivan County.

Top Bridges to Watch in Sullivan County

Bridge	Reason	Condition	Daily Traffic	Year Built
T-410 over N. Br. Mehoopany Creek	Poor condition + traffic exposure	Poor	50	1925
T-416 over Porter Creek	Poor condition + traffic exposure	Poor	50	1930
Cherry Twp T-474 over Little Loyalsock Creek	Poor condition + traffic exposure	Poor	30	1901
T-460 over Lick Creek	Poor condition + traffic exposure	Poor	30	1920
SR 4012 over Loyalsock Creek	Poor condition + traffic exposure	Poor	113	1850
T-328 over Muncy Creek	Poor condition + traffic exposure	Poor	108	1942
T-359 over Little Loyalsock Creek	Poor condition + traffic exposure	Poor	100	1933
Cabin Road over Loyalsock Creek	Poor condition + traffic exposure	Poor	100	1983
T-346 over Kings Creek	Poor condition + traffic exposure	Poor	50	1925
Rock Run Road over Loyalsock Creek	Poor condition + traffic exposure	Poor	15	1897

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.