US Bridges

Kam HWY over Kamooalii Strm (o.B)

Good

Honolulu County, Hawaii · 0.13MI S/Kahiko ST · Structure no. 003000830304273

Built
1968
57 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
3 main spans
Daily traffic
28,700
2017 count
Owner
State
State Highway Agency

About this bridge

Kam HWY over Kamooalii Strm (o.B) is a prestressed concrete stringer/multi-beam or girder carrying Kam HWY over Kamooalii Strm (o.B) in Honolulu County, Hawaii. It was built in 1968, so it is 57 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 28,700 vehicles a day, roughly 2% of them trucks, projected to reach 40,600 by 2025. The structure is 103 ft (31.4 m) long and 98 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesKam HWY
CrossesKamooalii Strm (o.B)
Location0.13MI S/Kahiko ST
RouteU.S. Route 83
StateHawaii
Coordinates21.38538, -157.79133
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span40 ft (12.2 m)
Deck width98 ft (29.9 m)
Roadway width94 ft (28.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,700 (2017)
Projected traffic40,600 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$639,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam HWY over Kamooalii Strm (o.B) built?

It was built in 1968, making it 57 years old in 2025.

What condition is Kam HWY over Kamooalii Strm (o.B) 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 2024.

How much traffic does Kam HWY over Kamooalii Strm (o.B) carry?

About 28,700 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Kam HWY over Kamooalii Strm (o.B)?

The structure is 103 ft (31.4 m) long with a longest span of 40 ft (12.2 m) and a deck 98 ft wide.

Who owns Kam HWY over Kamooalii Strm (o.B)?

It is owned by the State Highway Agency.