US Bridges

Kam HWY over Hoolapa Strm-Nanahu

Good

Honolulu County, Hawaii · 0.09MI W/Rca Com Ctr RD · Structure no. 003000830301357

Built
2020
5 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete
Length
54 ft
1 main span
Daily traffic
8,600
2017 count
Owner
State
State Highway Agency

About this bridge

Kam HWY over Hoolapa Strm-Nanahu is a concrete slab carrying Kam HWY over Hoolapa Strm-Nanahu in Honolulu County, Hawaii. It was built in 2020, so it is 5 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 8,600 vehicles a day, roughly 5% of them trucks, projected to reach 7,670 by 2025. The structure is 54 ft (16.5 m) long and 42 ft wide. If it were closed, the detour would be 72.1 mi (116 km).

CarriesKam HWY
CrossesHoolapa Strm-Nanahu
Location0.09MI W/Rca Com Ctr RD
RouteU.S. Route 83
StateHawaii
Coordinates21.69317, -157.97786
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length54 ft (16.5 m)
Longest span51 ft (15.6 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,600 (2017)
Projected traffic7,670 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed72.1 mi (116 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam HWY over Hoolapa Strm-Nanahu built?

It was built in 2020, making it 5 years old in 2025.

What condition is Kam HWY over Hoolapa Strm-Nanahu 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 July 2024.

How much traffic does Kam HWY over Hoolapa Strm-Nanahu carry?

About 8,600 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Kam HWY over Hoolapa Strm-Nanahu?

The structure is 54 ft (16.5 m) long with a longest span of 51 ft (15.6 m) and a deck 42 ft wide.

Who owns Kam HWY over Hoolapa Strm-Nanahu?

It is owned by the State Highway Agency.