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Boulder Creek Road over Mores Creek

Boise County, Idaho · rated Poor in the 2025 National Bridge Inventory

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

Boulder Creek Road over Mores Creek in Boise County, Idaho, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1982, making it 43 years old at the 2025 inventory.
It carries about 50 vehicles a day.
It is one of 5 of the 89 inventoried bridges in Boise County rated poor (5.6%); 5 (5.6%) 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 29 ft
Location	5 Mi NE Idaho City
NBI structure number	040203000011103
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
SH 55 over McLEOD WAY	2024	10,500	Good
SH 55 over Payette River	2021	8,800	Good
SH 55 over Power Canal	1994	8,800	Good
SH 55 over Uprr;horseshoe Bend Op	1971	7,800	Fair
SH 55 over Payette River	1971	7,800	Fair
SH 55 over S.fk.payette River	1955	7,300	Fair