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Lincoln Rd over Int Lincoln-i 15

Lewis and Clark County, Montana · rated Poor in the 2025 National Bridge Inventory

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

Lincoln Rd over Int Lincoln-i 15 in Lewis and Clark County, Montana, 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 1962 and reconstructed in 2005, making it 63 years old at the 2025 inventory.
It carries about 7,492 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 11 of the 204 inventoried bridges in Lewis and Clark County rated poor (5.4%); 11 (5.4%) 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 stringer or multi-beam girder
Length	about 206 ft
Location	10M N Helena
NBI structure number	S00279000+00001
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Lyndale Ave-us 12 over Great Northern Area	2003	20,397	Good
US 12 over RR	1978	19,327	Good
N Last Chance Gulc over RR	2003	18,569	Good
E Custer Ave over Int Custer Ave-i 15	2012	16,988	Good
US 12 over Prickly Pear Creek	1978	15,333	Good
I 15 over Sep Boulder Ave-rr	2016	14,810	Fair