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T313 Walnut Grove over Sideling Hill Creek

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

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

T313 Walnut Grove over Sideling Hill Creek in Huntingdon County, Pennsylvania, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1992 and reconstructed in 2019, making it 33 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 118 of the 239 inventoried bridges in Huntingdon County rated fair (49.4%); 24 (10.0%) 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 multiple box beam
Length	about 133 ft
Location	2 Mi.w.of Maddensville
NBI structure number	000000000018936
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Pa Tpk (I-76)WB over T-300 & Service Rd	1969	21,197	Poor
Pa Tpk (I-76) EB over T-300& Srvce.rd	1969	21,197	Fair
US 22 over Private Road	1948	12,868	Fair
US 22 over Pikes Run	1988	12,868	Good
US 22(POBSTOR) over US Silica Quarry Road	1972	11,068	Fair
US 22 over Trib.juniata River	1948	10,982	Fair