US Bridges

Kuhio HWY over Waikaea Canal

Fair

Kauai County, Hawaii · 0.12MI Ne/Kaloloku RD · Structure no. 007000560400804

Built
1948
77 years old, rebuilt 2002
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
29,200
2017 count
Owner
State
State Highway Agency

About this bridge

Kuhio HWY over Waikaea Canal is a concrete continuous tee beam carrying Kuhio HWY over Waikaea Canal in Kauai County, Hawaii. It was built in 1948 and reconstructed in 2002, so it is 77 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 29,200 vehicles a day, roughly 3% of them trucks, projected to reach 31,009 by 2025. The structure is 81 ft (24.7 m) long and 68 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKuhio HWY
CrossesWaikaea Canal
Location0.12MI Ne/Kaloloku RD
RouteU.S. Route 56
CountyKauai County
StateHawaii
Coordinates22.07187, -159.3195
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length81 ft (24.7 m)
Longest span27 ft (8.2 m)
Deck width68 ft (20.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,200 (2017)
Projected traffic31,009 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$531,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kuhio HWY over Waikaea Canal built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 2002.

What condition is Kuhio HWY over Waikaea Canal 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 May 2023.

How much traffic does Kuhio HWY over Waikaea Canal carry?

About 29,200 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Kuhio HWY over Waikaea Canal?

The structure is 81 ft (24.7 m) long with a longest span of 27 ft (8.2 m) and a deck 68 ft wide.

Who owns Kuhio HWY over Waikaea Canal?

It is owned by the State Highway Agency.