US Bridges

Kuhio HWY over Waiakalua Strm

Fair

Kauai County, Hawaii · 0.42MI Nw/Koolau RD · Structure no. 007000560302024

Built
1967
58 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
12,900
2017 count
Owner
State
State Highway Agency

About this bridge

Kuhio HWY over Waiakalua Strm is a prestressed concrete stringer/multi-beam or girder carrying Kuhio HWY over Waiakalua Strm in Kauai County, Hawaii. It was built in 1967, so it is 58 years old, younger 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.

It carries about 12,900 vehicles a day, roughly 2% of them trucks, projected to reach 10,865 by 2025. The structure is 45 ft (13.6 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesKuhio HWY
CrossesWaiakalua Strm
Location0.42MI Nw/Koolau RD
RouteU.S. Route 56
StateHawaii
Coordinates22.20315, -159.36827
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.8 US tons
Inventory rating47.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.6 m)
Longest span36 ft (11 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,900 (2017)
Projected traffic10,865 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kuhio HWY over Waiakalua Strm built?

It was built in 1967, making it 58 years old in 2025.

What condition is Kuhio HWY over Waiakalua Strm 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 Waiakalua Strm carry?

About 12,900 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Kuhio HWY over Waiakalua Strm?

The structure is 45 ft (13.6 m) long with a longest span of 36 ft (11 m) and a deck 38 ft wide.

Who owns Kuhio HWY over Waiakalua Strm?

It is owned by the State Highway Agency.