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Parks Highway over Riley Creek

Denali Borough, Alaska · rated Good in the 2025 National Bridge Inventory

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

Parks Highway over Riley Creek in Denali Borough, Alaska, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 8 (very good condition) on the 0-9 scale.
It was built in 2015, making it 10 years old at the 2025 inventory.
It carries about 1,680 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 5 of the 27 inventoried bridges in Denali Borough rated good (18.5%); 1 (3.7%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete tee beam
Length	about 229 ft
Location	Mile Point 201.6
NBI structure number	0695
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Parks Highway over Kingfisher Creek	1971	2,670	Fair
Parks Highway over Hornet Creek	1971	2,670	Fair
Parks Highway over Iceworm Gulch	1971	2,670	Fair
Parks Highway over Nenana River Park Sta	1970	2,340	Fair
Parks Highway over Nenana River Park Bnd	1973	1,680	Fair
Parks Highway over Panguingue Creek	1965	1,640	Fair