Northampton County Bridge Report Card

Northampton County scores 59 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F59 / 100

Local infrastructure snapshot

Northampton County, Pennsylvania

Northampton County has 354 bridges in the National Bridge Inventory, with 29 rated poor and 51 rated scour-critical. Its poor-condition share of 8.2% is at or below the 12.1% statewide average. Poor-condition bridges carry about 102,474 daily vehicle crossings.

354Total Bridges

29Poor (8.2%)

212Fair (59.9%)

51Scour-Critical

Quote-Ready Local Facts

8.2%of county bridges are in poor condition, compared with 12.1% statewide and 6.7% nationally.

102,474daily vehicle crossings are on poor-condition bridges in the county.

51bridges are rated scour-critical, or 14.4% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Northampton County a Bridge Condition Exposure Score of 59/100 (F). The county has 354 bridges in the National Bridge Inventory, including 29 in poor condition and 51 rated scour-critical. Poor-condition bridges carry about 102,474 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	8.2%	16.4
Poor-condition traffic exposure	25	2.7% of measured traffic	2.0
Scour-critical bridge share	20	14.4%	20.0
Average age vs national baseline	10	54 years vs 48 nationally	2.5
Traffic-data completeness	5	3,857,609 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	8.2%
State Poor-Condition Share	12.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	14.4%
Average Bridge Age	54 years
Poor-Condition Traffic Exposure	102,474 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgePa 33 SB (lr1098) over Bushkill Creek — 27,991 vehicles/day Oldest Listed BridgeCedar Drive over Indian Creek — built in 1826 All County BridgesBrowse every bridge record in Northampton County.

Top Bridges to Watch in Northampton County

Bridge	Reason	Condition	Daily Traffic	Year Built
SR 512 (lr 165) over Martins Creek	Poor condition + traffic exposure	Poor	7,047	1911
SR 2025 (lr 166) over Little Bushkill Creek	Poor condition + traffic exposure	Poor	7,017	1929
SR 2017(lr 48019) over Schoeneck Creek	Poor condition + traffic exposure	Poor	5,435	1942
SR 1015 (lr 165) over Martins Creek	Poor condition + traffic exposure	Poor	1,002	1911
SR 1016 (lr 48036) over Trib.to Bushkill Creek	Poor condition + traffic exposure	Poor	858	1927
Middletown Road over Nancy Run	Poor condition + traffic exposure	Poor	400	1958
N. Halbea ST T805 over Catasauqua Creek	Poor condition + traffic exposure	Poor	200	1987
Creamery Road over Bushkill Creek	Poor condition + traffic exposure	Poor	180	1959
Depues Road over Oughoughton Creek	Poor condition + traffic exposure	Poor	150	1937
Cedar Drive over Indian Creek	Poor condition + traffic exposure	Poor	100	1826

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.