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Sterling L/ophir over Spruce Creek

Yukon-Koyukuk Census Area, Alaska · rated Poor in the 2025 National Bridge Inventory

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

Sterling L/ophir over Spruce Creek in Yukon-Koyukuk Census Area, Alaska, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1964 and reconstructed in 1978, making it 61 years old at the 2025 inventory.
It carries about 45 vehicles a day (traffic count year 2018).
Its listed owner is the state highway agency.
It is one of 8 of the 94 inventoried bridges in Yukon-Koyukuk Census Area rated poor (8.5%); 8 (8.5%) 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	Timber stringer or multi-beam girder
Length	about 28 ft
Location	Mile Point 42.2
NBI structure number	0485
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Parks Highway over North Slough Tanana Riv	1967	1,710	Fair
Parks Highway over Tanana River at Nenana	1967	1,710	Fair
Parks Highway over Little Goldstream Ck	2021	1,570	Good
Parks Highway over Monderosa Overhead	2003	1,570	Good
Parks Highway over Fish Creek	1965	1,410	Fair
Denali Park Road over Savage River	1983	1,300	Fair