US Bridges

Kaawakea RD over Kawainui Stream

Fair

Honolulu County, Hawaii · TMK=4-2-75(ENCHANTED Lk) · Structure no. 003408001100001

Built
1961
64 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
45 ft
4 main spans
Daily traffic
3,296
1985 count
Owner
County
County Highway Agency

About this bridge

Kaawakea RD over Kawainui Stream is a concrete continuous culvert carrying Kaawakea RD over Kawainui Stream in Honolulu County, Hawaii. It was built in 1961, so it is 64 years old, older 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 3,296 vehicles a day, projected to reach 4,120 by 2025. The structure is 45 ft (13.8 m) long and 72 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesKaawakea RD
CrossesKawainui Stream
LocationTMK=4-2-75(ENCHANTED Lk)
RouteCity Street 6040
CountyHonolulu County
StateHawaii
Coordinates21.38827, -157.73464
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadUnknown
Structure length45 ft (13.8 m)
Longest span10 ft (3.2 m)
Deck width72 ft (22 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,296 (1985)
Projected traffic4,120 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kaawakea RD over Kawainui Stream built?

It was built in 1961, making it 64 years old in 2025.

What condition is Kaawakea RD over Kawainui 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 September 2024.

How much traffic does Kaawakea RD over Kawainui Stream carry?

About 3,296 vehicles per day (1985 count).

How long is Kaawakea RD over Kawainui Stream?

The structure is 45 ft (13.8 m) long with a longest span of 10 ft (3.2 m) and a deck 72 ft wide.

Who owns Kaawakea RD over Kawainui Stream?

It is owned by the County Highway Agency.