US Bridges

Kuhio HWY over Hanalei River

FairPosted for load

Kauai County, Hawaii · 0.81MI Nw/Honu RD · Structure no. 007005600500123

Built
1912
113 years old, rebuilt 2003
Condition
Fair
inspected April 2023
Type
Truss - Thru
Steel
Length
114 ft
1 main span
Daily traffic
8,800
2017 count
Owner
State
State Highway Agency

About this bridge

Kuhio HWY over Hanalei River is a steel truss - thru carrying Kuhio HWY over Hanalei River in Kauai County, Hawaii. It was built in 1912 and reconstructed in 2003, so it is 113 years old, older than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 8,800 vehicles a day, roughly 3% of them trucks, projected to reach 9,375 by 2025. The structure is 114 ft (34.7 m) long and 23 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesKuhio HWY
CrossesHanalei River
Location0.81MI Nw/Honu RD
RouteU.S. Route 560
CountyKauai County
StateHawaii
Coordinates22.21083, -159.47607
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length114 ft (34.7 m)
Longest span112 ft (34.1 m)
Deck width23 ft (6.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic8,800 (2017)
Projected traffic9,375 by 2025
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$4.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Kuhio HWY over Hanalei River built?

It was built in 1912, making it 113 years old in 2025. It was reconstructed in 2003.

What condition is Kuhio HWY over Hanalei River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does Kuhio HWY over Hanalei River carry?

About 8,800 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Kuhio HWY over Hanalei River?

The structure is 114 ft (34.7 m) long with a longest span of 112 ft (34.1 m) and a deck 23 ft wide.

Who owns Kuhio HWY over Hanalei River?

It is owned by the State Highway Agency.