US Bridges

Kahau Pl over Kahau Pl/Ulehawa Chl U-3

Fair

Honolulu County, Hawaii · TMK=8-7-26(NANAKULI) · Structure no. 003804001100001

Built
1964
61 years old
Condition
Fair
inspected December 2023
Type
Slab
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
400
2009 count
Owner
County
County Highway Agency

About this bridge

Kahau Pl over Kahau Pl/Ulehawa Chl U-3 is a prestressed concrete slab carrying Kahau Pl over Kahau Pl/Ulehawa Chl U-3 in Honolulu County, Hawaii. It was built in 1964, so it is 61 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 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 400 vehicles a day, projected to reach 500 by 2029. The structure is 23 ft (6.9 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKahau Pl
CrossesKahau Pl/Ulehawa Chl U-3
LocationTMK=8-7-26(NANAKULI)
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.3917, -158.15463
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.4 US tons
Inventory rating43.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.4 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2009)
Projected traffic500 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Kahau Pl over Kahau Pl/Ulehawa Chl U-3 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Kahau Pl over Kahau Pl/Ulehawa Chl U-3 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 December 2023.

How much traffic does Kahau Pl over Kahau Pl/Ulehawa Chl U-3 carry?

About 400 vehicles per day (2009 count).

How long is Kahau Pl over Kahau Pl/Ulehawa Chl U-3?

The structure is 23 ft (6.9 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Kahau Pl over Kahau Pl/Ulehawa Chl U-3?

It is owned by the County Highway Agency.