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I-78EB(LR 1045) over Williams Street

Northampton County, Pennsylvania · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

I-78EB(LR 1045) over Williams Street in Northampton County, Pennsylvania, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1988, making it 37 years old at the 2025 inventory.
It carries about 30,843 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 212 of the 354 inventoried bridges in Northampton County rated fair (59.9%); 29 (8.2%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 108 ft
Location	I78 EB over Williams St.
NBI structure number	000000000028530
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.

Bridge	Built	Vehicles/day	Condition
US 22 (lr 772) over Pa 512(LR 48046)	1954	94,431	Fair
US 22 (lr 772) over Twp.line Rd.(t-434)	1954	94,335	Fair
US 22 (lr 772) over Christian Spring Rd.	1954	94,335	Fair
US 22 (lr 772) over Norfolk Southern RR	1954	94,335	Fair
US 22 (lr 772) over Pa 191 & Monocacy CR.	1954	94,335	Fair
US 22 (lr 772) over T-575(jacksonville Road)	1954	89,021	Fair