Montgomery County Bridge Report Card

Montgomery County scores 49 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F49 / 100

Local infrastructure snapshot

Montgomery County, Pennsylvania

Montgomery County has 830 bridges in the National Bridge Inventory, with 96 rated poor and 117 rated scour-critical. Its poor-condition share of 11.6% is at or below the 12.1% statewide average. Poor-condition bridges carry about 920,971 daily vehicle crossings.

830Total Bridges

96Poor (11.6%)

469Fair (56.5%)

117Scour-Critical

Quote-Ready Local Facts

11.6%of county bridges are in poor condition, compared with 12.1% statewide and 6.7% nationally.

920,971daily vehicle crossings are on poor-condition bridges in the county.

117bridges are rated scour-critical, or 14.1% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Montgomery County a Bridge Condition Exposure Score of 49/100 (F). The county has 830 bridges in the National Bridge Inventory, including 96 in poor condition and 117 rated scour-critical. Poor-condition bridges carry about 920,971 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	11.6%	23.1
Poor-condition traffic exposure	25	6.0% of measured traffic	4.5
Scour-critical bridge share	20	14.1%	20.0
Average age vs national baseline	10	57 years vs 48 nationally	3.8
Traffic-data completeness	5	15,264,920 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	11.6%
State Poor-Condition Share	12.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	14.1%
Average Bridge Age	57 years
Poor-Condition Traffic Exposure	920,971 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSchuylkill Expway. over Waverly Road(t669) — 89,047 vehicles/day Oldest Listed BridgeTrinity Lane over Gulph Mills Creek — built in 1789 All County BridgesBrowse every bridge record in Montgomery County.

Top Bridges to Watch in Montgomery County

Bridge	Reason	Condition	Daily Traffic	Year Built
Old Welsh Road over Pennypack Creek	Poor condition + traffic exposure	Poor	32,800	1968
Bethlehem Pike over W. Br. Neshaminy Creek	Poor condition + traffic exposure	Poor	30,106	1934
Markley/elm Street over Stony Creek	Poor condition + traffic exposure	Poor	27,202	1878
Sumneytown Pike over Towamencin Creek	Poor condition + traffic exposure	Poor	19,455	1986
Valley Forge Road over Trout/maschellamac Creek	Poor condition + traffic exposure	Poor	17,059	1874
High Street over Sprogels Run	Poor condition + traffic exposure	Poor	14,340	1910
Butler Pike over Wissahickon Creek	Poor condition + traffic exposure	Poor	13,301	1926
Valley Forge Road over Towamencin Creek	Poor condition + traffic exposure	Poor	12,986	1928
Township Line Road over Lodal Creek	Poor condition + traffic exposure	Poor	12,530	1950
Penllyn Pike over Wissahickon Creek	Poor condition + traffic exposure	Poor	11,591	1964

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.