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Haines Highway over Little Boulder Creek

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

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

Haines Highway over Little Boulder Creek in Haines 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 1991, making it 34 years old at the 2025 inventory.
It carries about 110 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 9 of the 20 inventoried bridges in Haines Borough rated good (45.0%); 1 (5.0%) 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	Prestressed concrete tee beam
Length	about 80 ft
Location	Mile Point 31.0
NBI structure number	0744
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Haines Highway over Chilkat River	1958	340	Fair
Haines Highway over Muncaster Creek	1999	160	Good
Haines Highway over Big Boulder Creek	1991	110	Good
Porcupine Crossing over Klehini River	2017	110	Good
Lutak Spur over Chilkoot River	1979	90	Fair
Marine Hwy Route over Haines Ferry Terminal	1984	43	Fair