Home › Alaska › Juneau City and Borough › Twin Lakes Drive over Salmon Creek

Twin Lakes Drive over Salmon Creek

Juneau City and Borough, Alaska · rated Good in the 2025 National Bridge Inventory

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

Twin Lakes Drive over Salmon Creek in Juneau City and 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 1989, making it 36 years old at the 2025 inventory.
It carries about 2,450 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 17 of the 47 inventoried bridges in Juneau City and Borough rated good (36.2%); 1 (2.1%) 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 125 ft
Location	Mile Point 1.6
NBI structure number	0787
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Egan Drive over Jordan Creek (egan Dr)	1971	21,700	Fair
Egan Drive over Vanderbilt Creek	1973	17,000	Good
Egan Drive over Salmon Creek Powerhouse	1973	16,900	Fair
Glacier Highway over Mendenhall River	2015	15,923	Good
Egan Drive over Salmon Creek	1973	13,800	Fair
Jnu Douglas Br Rd over Gastineau Channel	1981	12,800	Fair