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SR 27 Grand Street over over Allegheny Railroad

Warren County, Pennsylvania · rated Good in the 2025 National Bridge Inventory

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

SR 27 Grand Street over over Allegheny Railroad in Warren County, Pennsylvania, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
It was built in 1941 and reconstructed in 2019, making it 84 years old at the 2025 inventory.
It carries about 2,308 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 77 of the 218 inventoried bridges in Warren County rated good (35.3%); 38 (17.4%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 170 ft
Location	Pittsfield Township
NBI structure number	000000000033995
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
SR 62 Market St. over over Jackson Run	1973	14,835	Fair
SR 6006 Penn Ave.e over over Conewango Creek	1987	10,659	Good
SR 62 over over Valentine Creek	1941	9,699	Fair
SR 6 Grand Army Hy over over Morse Run	1950	8,651	Fair
SR 6 Grand Army Hy over Allegheny & Eastern RR	1976	8,651	Fair
SR 6 Warren Bypass over over SR62 Ludow St E/w	1976	8,651	Fair