US Bridges

Bridge #1/H3 over Kam HWY

Good

Honolulu County, Hawaii · .04MI Se/Kamooalii Stream · Structure no. 003000H30311510

Built
1988
37 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
199 ft
2 main spans
Daily traffic
24,400
2017 count
Owner
State
State Highway Agency

About this bridge

Bridge #1/H3 over Kam HWY is a prestressed concrete continuous stringer/multi-beam or girder carrying Bridge #1/H3 over Kam HWY in Honolulu County, Hawaii. It was built in 1988, so it is 37 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 24,400 vehicles a day, roughly 3% of them trucks, projected to reach 28,600 by 2025. The structure is 199 ft (60.7 m) long and 56 ft wide.

CarriesBridge #1/H3
CrossesKam HWY
Location.04MI Se/Kamooalii Stream
RouteInterstate 0H3
StateHawaii
Coordinates21.38476, -157.79062
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length199 ft (60.7 m)
Longest span99 ft (30.2 m)
Deck width56 ft (17.1 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,400 (2017)
Projected traffic28,600 by 2025
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bridge #1/H3 over Kam HWY built?

It was built in 1988, making it 37 years old in 2025.

What condition is Bridge #1/H3 over Kam HWY 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 August 2024.

How much traffic does Bridge #1/H3 over Kam HWY carry?

About 24,400 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Bridge #1/H3 over Kam HWY?

The structure is 199 ft (60.7 m) long with a longest span of 99 ft (30.2 m) and a deck 56 ft wide.

Who owns Bridge #1/H3 over Kam HWY?

It is owned by the State Highway Agency.