T-583 Harrison Rd over Cowanesque River

Potter County, Pennsylvania · rated Poor in the 2025 National Bridge Inventory

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

• T-583 Harrison Rd over Cowanesque River in Potter County, Pennsylvania, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the substructure, rated 0 (failed condition, out of service) on the 0-9 scale.
• It was built in 1979 and reconstructed in 2007, making it 46 years old at the 2025 inventory.
• It carries about 40 vehicles a day (traffic count year 2018).
• Its listed owner is a town or township highway agency.
• It is one of 25 of the 206 inventoried bridges in Potter County rated poor (12.1%); 25 (12.1%) are rated poor.
• Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
• Its class is unchanged from 2024 (poor), but component ratings moved: substructure 5 to 0.
• Status change: newly closed since 2024.
• Its most recent inspection on record is dated September 2023, on a 24-month routine inspection cycle.
• It is coded scour critical (NBI item 113 = 1): scour critical: field review indicates failure of piers or abutments is imminent.
• A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

View this bridge on a map → (41.92458, -77.62451)

Component ratings

Bridge details

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

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