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SR4018 over Little Mahoning Creek

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

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

SR4018 over Little Mahoning Creek in Indiana County, Pennsylvania, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1961, making it 64 years old at the 2025 inventory.
It carries about 241 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 54 of the 301 inventoried bridges in Indiana County rated poor (17.9%); 54 (17.9%) 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	Prestressed concrete multiple box beam
Length	about 105 ft
Location	Mccormick
NBI structure number	000000000019402
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
SR0022 Eb&wb over Lear Rd	1952	29,096	Fair
SR0022 Eb&wb over Norfolk Southern RR	1953	29,096	Fair
SR0022 Eb&wb over SR0119 Nb&sb	2003	21,499	Good
SR0022 Eb&wb over Conemaugh River	1951	20,532	Fair
SR 0022 Eb&wb over SR 0217 & NS RR	1951	20,532	Fair
SR0286 over SR0422 Eb&wb	1993	17,343	Fair