US Bridges

Ahuimanu Place over Drainage Channel

Fair

Honolulu County, Hawaii · TMK=4-7-52 · Structure no. 003460001200001

Built
1965
60 years old, rebuilt 1984
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
100
1986 count
Owner
County
County Highway Agency

About this bridge

Ahuimanu Place over Drainage Channel is a concrete culvert carrying Ahuimanu Place over Drainage Channel in Honolulu County, Hawaii. It was built in 1965 and reconstructed in 1984, so it is 60 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 100 vehicles a day, projected to reach 150 by 2029. The structure is 21 ft (6.3 m) long.

Location

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CarriesAhuimanu Place
CrossesDrainage Channel
LocationTMK=4-7-52
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.44361, -157.83454
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.7 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length21 ft (6.3 m)
Longest span21 ft (6.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (1986)
Projected traffic150 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 Ahuimanu Place over Drainage Channel built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1984.

What condition is Ahuimanu Place over Drainage Channel 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 October 2023.

How much traffic does Ahuimanu Place over Drainage Channel carry?

About 100 vehicles per day (1986 count).

How long is Ahuimanu Place over Drainage Channel?

The structure is 21 ft (6.3 m) long with a longest span of 21 ft (6.3 m).

Who owns Ahuimanu Place over Drainage Channel?

It is owned by the County Highway Agency.