Armstrong County Bridge Report Card

Armstrong County scores 65 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D65 / 100

Local infrastructure snapshot

Armstrong County, Pennsylvania

Armstrong County has 259 bridges in the National Bridge Inventory, with 18 rated poor and 36 rated scour-critical. Its poor-condition share of 6.9% is at or below the 12.1% statewide average. Poor-condition bridges carry about 7,775 daily vehicle crossings.

259Total Bridges

18Poor (6.9%)

150Fair (57.9%)

36Scour-Critical

Quote-Ready Local Facts

6.9%of county bridges are in poor condition, compared with 12.1% statewide and 6.7% nationally.

7,775daily vehicle crossings are on poor-condition bridges in the county.

36bridges are rated scour-critical, or 13.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Armstrong County a Bridge Condition Exposure Score of 65/100 (D). The county has 259 bridges in the National Bridge Inventory, including 18 in poor condition and 36 rated scour-critical. Poor-condition bridges carry about 7,775 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	6.9%	13.9
Poor-condition traffic exposure	25	1.0% of measured traffic	0.8
Scour-critical bridge share	20	13.9%	20.0
Average age vs national baseline	10	47 years vs 48 nationally	0.0
Traffic-data completeness	5	765,852 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	6.9%
State Poor-Condition Share	12.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	13.9%
Average Bridge Age	47 years
Poor-Condition Traffic Exposure	7,775 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSr0128 over Trib To Pine Run — 1,103 vehicles/day Oldest Listed BridgeT-501 Boltz Road over Buffalo & Pitt Rr — built in 1900 All County BridgesBrowse every bridge record in Armstrong County.

Top Bridges to Watch in Armstrong County

Bridge	Reason	Condition	Daily Traffic	Year Built
Sr0128 over Trib To Pine Run	Poor condition + traffic exposure	Poor	1,103	1921
Sr1036 over Cowanshannock Creek	Poor condition + traffic exposure	Poor	1,065	1962
Sr4010 over Trib To Buffalo Creek	Poor condition + traffic exposure	Poor	785	1925
Sr0156 over Long Run	Poor condition + traffic exposure	Poor	643	1957
Sr2005 over Cherry Run	Poor condition + traffic exposure	Poor	218	1938
T-860 Beagle Club over Huling Run	Poor condition + traffic exposure	Poor	120	1952
Sr4009 over Hart Run	Poor condition + traffic exposure	Poor	956	1953
Sr0156 over Norfolk Southern Rr	Poor condition + traffic exposure	Poor	643	1949
Sr2027 over Crooked Creek	Poor condition + traffic exposure	Poor	582	1940
T-689 Peterman Hil over Miller Run	Poor condition + traffic exposure	Poor	400	1966

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.