US Bridges

Kam HWY over Opaeula Stream

Good

Honolulu County, Hawaii · .53 MI N Weed Junc · Structure no. 003000830300036

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

About this bridge

Kam HWY over Opaeula Stream is a prestressed concrete stringer/multi-beam or girder carrying Kam HWY over Opaeula 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 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 11,600 vehicles a day, roughly 3% of them trucks, projected to reach 9,599 by 2025. The structure is 127 ft (38.7 m) long and 48 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesKam HWY
CrossesOpaeula Stream
Location.53 MI N Weed Junc
RouteU.S. Route 83
StateHawaii
Coordinates21.58067, -158.10264
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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.1 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length127 ft (38.7 m)
Longest span120 ft (36.6 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 Opaeula Stream built?

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

What condition is Kam HWY over Opaeula Stream 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 May 2024.

How much traffic does Kam HWY over Opaeula Stream carry?

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

How long is Kam HWY over Opaeula Stream?

The structure is 127 ft (38.7 m) long with a longest span of 120 ft (36.6 m) and a deck 48 ft wide.

Who owns Kam HWY over Opaeula Stream?

It is owned by the State Highway Agency.