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T-353 Bottom Rd over Mill Run

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

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

T-353 Bottom Rd over Mill Run in Jefferson County, Pennsylvania, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 2 (critical condition) on the 0-9 scale.
It was built in 1909 and reconstructed in 1995, making it 116 years old at the 2025 inventory.
It carries about 50 vehicles a day (traffic count year 2022).
Its listed owner is a town or township highway agency.
It is one of 14 of the 201 inventoried bridges in Jefferson County rated poor (7.0%); 14 (7.0%) are rated poor.
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.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 28 ft
Location	1.2 Miles SE of SR 4001
NBI structure number	000000000019826
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
SR0080 Eb&wb over Little Mill Creek	1962	20,738	Fair
SR0080 WB over SR0036 Nb&sb	1960	12,788	Fair
SR0080 WB over SR4003	1962	12,788	Fair
SR0080 WB over North Fork & Wat Plnt Rd	1962	12,788	Fair
SR0080 EB over SR0036 Nb&sb	1960	12,277	Fair
SR0080 EB over SR4003	1962	12,277	Fair