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Goose Lake Rd-kake over Upper Cathedral Falls

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

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

Goose Lake Rd-kake over Upper Cathedral Falls in Petersburg Borough, Alaska, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1983, making it 42 years old at the 2025 inventory.
It carries about 10 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 63 of the 137 inventoried bridges in Petersburg Borough rated good (46.0%); 11 (8.0%) 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	Steel stringer or multi-beam girder
Length	about 120 ft
Location	Mile Point 2.2
NBI structure number	2370
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Nordic Drive over Hammer Slough	1974	4,210	Fair
Ifa Ferry Route over Petersburg S Mitkof Term	2006	2,659	Good
Irr:ptrsbg/kake Rd over Gunnuk Creek	1981	770	Fair
Mitkof Highway over Twin Creek	1996	760	Good
Irr:keku Rd (kake) over Sitkum Creek	2011	270	Fair
Birch Street over Birch Street Viaduct	1960	200	Fair