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Koolau Rd over Waipake Strm(kiaki Br)

Kauai County, Hawaii · rated Poor in the 2025 National Bridge Inventory

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

Koolau Rd over Waipake Strm(kiaki Br) in Kauai County, Hawaii, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1921, making it 104 years old at the 2025 inventory.
It carries about 90 vehicles a day (traffic count year 1981).
Its listed owner is the county highway agency.
It is one of 6 of the 85 inventoried bridges in Kauai County rated poor (7.1%); 6 (7.1%) 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


Structure	Continuous concrete tee beam
Length	about 78 ft
Location	0.32MI E/kuhio Hwy Jct
NBI structure number	007510011151001
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Kaumualii Hwy over Nawiliwili Str/lihue M	1936	34,100	Fair
Kaumualii Highway over Nawiliwili Stream OB	2014	34,100	Good
Kaumualii Hwy over Unknown Stream	2000	34,000	Fair
Kuhio Hwy over Wailua River	1945	31,600	Poor
Kuhio Hwy/plan.rd. over Wailua River	1920	31,600	Fair
Kuhio Hwy over Uhelekawawa Canal	1963	29,200	Fair