Union County Bridge Report Card

Union 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

Union County, Pennsylvania

Union County has 164 bridges in the National Bridge Inventory, with 7 rated poor and 15 rated scour-critical. Its poor-condition share of 4.3% is at or below the 12.1% statewide average. Poor-condition bridges carry about 2,315 daily vehicle crossings.

164Total Bridges

7Poor (4.3%)

71Fair (43.3%)

15Scour-Critical

Quote-Ready Local Facts

4.3%of county bridges are in poor condition, compared with 12.1% statewide and 6.7% nationally.

2,315daily vehicle crossings are on poor-condition bridges in the county.

15bridges are rated scour-critical, or 9.1% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Union County a Bridge Condition Exposure Score of 70/100 (C). The county has 164 bridges in the National Bridge Inventory, including 7 in poor condition and 15 rated scour-critical. Poor-condition bridges carry about 2,315 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	4.3%	8.5
Poor-condition traffic exposure	25	0.4% of measured traffic	0.3
Scour-critical bridge share	20	9.1%	18.3
Average age vs national baseline	10	55 years vs 48 nationally	2.9
Traffic-data completeness	5	533,531 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	4.3%
State Poor-Condition Share	12.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	9.1%
Average Bridge Age	55 years
Poor-Condition Traffic Exposure	2,315 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSR 3012 over Over Sweitzers Run — 1,383 vehicles/day Oldest Listed BridgeT-319 Red Bridge over Penns Creek — built in 1855 All County BridgesBrowse every bridge record in Union County.

Top Bridges to Watch in Union County

Bridge	Reason	Condition	Daily Traffic	Year Built
SR 3012 over Over Sweitzers Run	Poor condition + traffic exposure	Poor	1,383	1948
T-357 over N. Br. Buffalo Creek	Poor condition + traffic exposure	Poor	119	1900
SR 2001 over Buffalo Creek	Poor condition + traffic exposure	Poor	586	1960
T-376 Cty Br. 20 over Buffalo Creek	Poor condition + traffic exposure	Poor	150	1900
T-428 (cty Br 6) over Spruce Run	Poor condition + traffic exposure	Poor	54	1925
T-421 (cty. Br. 2) over White Deer Hole Creek	Poor condition + traffic exposure	Poor	13	1889
T-319 Red Bridge over Penns Creek	Poor condition + traffic exposure	Poor	10	1855
Sr0015 over Buffalo Creek	Scour-critical foundation rating	Fair	21,561	1930
SR 0045 over Over Bull Run	Scour-critical foundation rating	Fair	9,622	1937
SR 45 over Beaver Run	Scour-critical foundation rating	Fair	9,622	1940

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.