US Bridges

Kaumualii HWY over Huleia Strm

Good

Kauai County, Hawaii · 1.81MI Se/Maluhia RD · Structure no. 007000500302806

Built
1989
36 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
429 ft
4 main spans
Daily traffic
26,700
2017 count
Owner
State
State Highway Agency

About this bridge

Kaumualii HWY over Huleia Strm is a prestressed concrete stringer/multi-beam or girder carrying Kaumualii HWY over Huleia Strm in Kauai County, Hawaii. It was built in 1989, so it is 36 years old, younger than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 26,700 vehicles a day, roughly 3% of them trucks, projected to reach 27,515 by 2025. The structure is 429 ft (130.8 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesKaumualii HWY
CrossesHuleia Strm
Location1.81MI Se/Maluhia RD
RouteU.S. Route 50
StateHawaii
Coordinates21.96193, -159.44247
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.1 US tons
Inventory rating55.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length429 ft (130.8 m)
Longest span105 ft (32 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,700 (2017)
Projected traffic27,515 by 2025
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kaumualii HWY over Huleia Strm built?

It was built in 1989, making it 36 years old in 2025.

What condition is Kaumualii HWY over Huleia Strm in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Kaumualii HWY over Huleia Strm carry?

About 26,700 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Kaumualii HWY over Huleia Strm?

The structure is 429 ft (130.8 m) long with a longest span of 105 ft (32 m) and a deck 55 ft wide.

Who owns Kaumualii HWY over Huleia Strm?

It is owned by the State Highway Agency.