US Bridges

Komohana ST over Waiakea Strm

Good

Hawaii County, Hawaii · Tmk: 2-4-01:007 · Structure no. 001019401400180

Built
1966
59 years old, rebuilt 2005
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
82 ft
2 main spans
Daily traffic
10,390
1986 count
Owner
County
County Highway Agency

About this bridge

Komohana ST over Waiakea Strm is a concrete continuous slab carrying Komohana ST over Waiakea Strm in Hawaii County, Hawaii. It was built in 1966 and reconstructed in 2005, so it is 59 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 10,390 vehicles a day, projected to reach 12,988 by 2025. The structure is 82 ft (25 m) long and 99 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKomohana ST
CrossesWaiakea Strm
LocationTmk: 2-4-01:007
RouteCity Street 1940
StateHawaii
Coordinates19.69431, -155.09061
Functional classUrban Collector

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length82 ft (25 m)
Longest span39 ft (12 m)
Deck width99 ft (30.2 m)
Roadway width87 ft (26.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,390 (1986)
Projected traffic12,988 by 2025
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRelief for waterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$190,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Komohana ST over Waiakea Strm built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2005.

What condition is Komohana ST over Waiakea Strm 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 November 2023.

How much traffic does Komohana ST over Waiakea Strm carry?

About 10,390 vehicles per day (1986 count).

How long is Komohana ST over Waiakea Strm?

The structure is 82 ft (25 m) long with a longest span of 39 ft (12 m) and a deck 99 ft wide.

Who owns Komohana ST over Waiakea Strm?

It is owned by the County Highway Agency.