Delaware County Bridge Report Card

Delaware 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

Delaware County, Pennsylvania

Delaware County has 389 bridges in the National Bridge Inventory, with 43 rated poor and 44 rated scour-critical. Its poor-condition share of 11.1% is at or below the 12.1% statewide average. Poor-condition bridges carry about 632,465 daily vehicle crossings.

389Total Bridges

43Poor (11.1%)

249Fair (64.0%)

44Scour-Critical

Quote-Ready Local Facts

11.1%of county bridges are in poor condition, compared with 12.1% statewide and 6.7% nationally.

632,465daily vehicle crossings are on poor-condition bridges in the county.

44bridges are rated scour-critical, or 11.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Delaware County a Bridge Condition Exposure Score of 49/100 (F). The county has 389 bridges in the National Bridge Inventory, including 43 in poor condition and 44 rated scour-critical. Poor-condition bridges carry about 632,465 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	11.1%	22.1
Poor-condition traffic exposure	25	8.0% of measured traffic	6.0
Scour-critical bridge share	20	11.3%	20.0
Average age vs national baseline	10	56 years vs 48 nationally	3.3
Traffic-data completeness	5	7,869,784 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	11.1%
State Poor-Condition Share	12.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	11.3%
Average Bridge Age	56 years
Poor-Condition Traffic Exposure	632,465 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeInterstate 95(sb) over US 322 EB & Ramp A — 117,917 vehicles/day Oldest Listed BridgeSt.davids Road over Darby Creek / 3476-f8 — built in 1810 All County BridgesBrowse every bridge record in Delaware County.

Top Bridges to Watch in Delaware County

Bridge	Reason	Condition	Daily Traffic	Year Built
E. Lancaster AVE over Branch Browns Run	Poor condition + traffic exposure	Poor	31,662	1960
State Road over Darby Creek	Poor condition + traffic exposure	Poor	29,754	1950
Township Line Road over Cobbs Creek	Poor condition + traffic exposure	Poor	27,899	1934
Chester Pike over Crum Creek	Poor condition + traffic exposure	Poor	18,095	1926
Victory Avenue over Cobbs Creek	Poor condition + traffic exposure	Poor	13,750	1937
Chester Pike over Darby Creek	Poor condition + traffic exposure	Poor	13,380	1931
Providence Road over Darby Creek	Poor condition + traffic exposure	Poor	13,028	1923
Conestoga Road over Ithan Creek	Poor condition + traffic exposure	Poor	10,128	1930
Concord Road over Chester Creek / 3694-j10	Poor condition + traffic exposure	Poor	9,019	1898
Meetinghouse Road over Marcus Hook Creek/3806a7	Poor condition + traffic exposure	Poor	6,717	1928

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.