US Bridges

Kam HWY over Anahulu Stream

Fair

Honolulu County, Hawaii · 1.44 MI N Weed Junc · Structure no. 003000830300121

Built
1993
32 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
230 ft
3 main spans
Daily traffic
11,600
2017 count
Owner
State
State Highway Agency

About this bridge

Kam HWY over Anahulu Stream is a prestressed concrete stringer/multi-beam or girder carrying Kam HWY over Anahulu Stream in Honolulu County, Hawaii. It was built in 1993, so it is 32 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 11,600 vehicles a day, roughly 3% of them trucks, projected to reach 9,599 by 2025. The structure is 230 ft (70.1 m) long and 48 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesKam HWY
CrossesAnahulu Stream
Location1.44 MI N Weed Junc
RouteU.S. Route 83
CountyHonolulu County
StateHawaii
Coordinates21.59268, -158.1002
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating29.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length230 ft (70.1 m)
Longest span90 ft (27.4 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,600 (2017)
Projected traffic9,599 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam HWY over Anahulu Stream built?

It was built in 1993, making it 32 years old in 2025.

What condition is Kam HWY over Anahulu Stream 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 2024.

How much traffic does Kam HWY over Anahulu Stream carry?

About 11,600 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Kam HWY over Anahulu Stream?

The structure is 230 ft (70.1 m) long with a longest span of 90 ft (27.4 m) and a deck 48 ft wide.

Who owns Kam HWY over Anahulu Stream?

It is owned by the State Highway Agency.