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US 1 Southbound over Ramp to Olden Av (CR622)

Mercer County, New Jersey · rated Fair in the 2025 National Bridge Inventory

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

US 1 Southbound over Ramp to Olden Av (CR622) in Mercer County, New Jersey, 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 1953 and reconstructed in 2005, making it 72 years old at the 2025 inventory.
It carries about 28,392 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 212 of the 413 inventoried bridges in Mercer County rated fair (51.3%); 36 (8.7%) 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	Steel stringer or multi-beam girder
Length	about 100 ft
Location	4.5 Miles South of 1-295
NBI structure number	1101159
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Route 29 Rampb over Assunpink Creek	1969	163,000	Fair
Nj Tpk(i-95) over Cedar Swamp Brook	1950	128,068	Fair
US 1 over Duck Pond Run	1928	120,147	Fair
I-295 Southbound over Franklin Corner Road	1973	100,463	Fair
Nj Tpk (I-95) over Nj 33	1950	99,482	Fair
Nsi & Sni Roadways over Monmouth Street	1950	99,482	Fair