US Bridges

Hamakua DR over Kawainui Strm

Fair

Honolulu County, Hawaii · Koolaupoko TMK4-2-01 · Structure no. 003426001100001

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
213 ft
3 main spans
Daily traffic
12,066
1988 count
Owner
County
County Highway Agency

About this bridge

Hamakua DR over Kawainui Strm is a prestressed concrete stringer/multi-beam or girder carrying Hamakua DR over Kawainui Strm in Honolulu County, Hawaii. It was built in 1985, so it is 40 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 5 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 12,066 vehicles a day, projected to reach 15,083 by 2025. The structure is 213 ft (65 m) long and 69 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHamakua DR
CrossesKawainui Strm
LocationKoolaupoko TMK4-2-01
RouteCity Street 6010
CountyHonolulu County
StateHawaii
Coordinates21.38887, -157.73952
Functional classUrban Minor Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length213 ft (65 m)
Longest span72 ft (21.9 m)
Deck width69 ft (21.1 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,066 (1988)
Projected traffic15,083 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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$2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Hamakua DR over Kawainui Strm built?

It was built in 1985, making it 40 years old in 2025.

What condition is Hamakua DR over Kawainui Strm 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 September 2023.

How much traffic does Hamakua DR over Kawainui Strm carry?

About 12,066 vehicles per day (1988 count).

How long is Hamakua DR over Kawainui Strm?

The structure is 213 ft (65 m) long with a longest span of 72 ft (21.9 m) and a deck 69 ft wide.

Who owns Hamakua DR over Kawainui Strm?

It is owned by the County Highway Agency.