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Irr Bia Rte 8PGH over Unnamed Creek

Kenai Peninsula Borough, Alaska · rated Poor in the 2025 National Bridge Inventory

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

Irr Bia Rte 8PGH over Unnamed Creek in Kenai Peninsula Borough, Alaska, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
It was built in 1997, making it 28 years old at the 2025 inventory.
It carries about 5 vehicles a day (traffic count year 2021).
It is one of 13 of the 102 inventoried bridges in Kenai Peninsula Borough rated poor (12.7%); 13 (12.7%) 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

Component	Rating (2025)	FHWA scale meaning
Superstructure	4	Poor condition
Substructure	3	Serious condition


Structure	Timber stringer or multi-beam girder
Length	about 37 ft
Location	14.2 Mi SE of Port Graham
NBI structure number	000000008PGH-35
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Sterling Highway over Kenai River (soldotna)	2007	15,100	Fair
Kenai Riv Crossing over Kenai River (kenai)	1974	10,000	Fair
Seward Highway over Resurrection River No 1	2003	6,840	Good
Seward Highway over Resurrection River No 2	2003	6,840	Good
Seward Highway over Resurrection River No 3	2003	6,840	Good
Sterling Highway over Moose River	1993	6,360	Good