US Bridges

Akumu ST over Akumu St/Vienney Ditch

Fair

Honolulu County, Hawaii · TMK=4-2-50 · Structure no. 003455001100001

Built
1961
64 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
37 ft
4 main spans
Daily traffic
3,750
1986 count
Owner
County
County Highway Agency

About this bridge

Akumu ST over Akumu St/Vienney Ditch is a concrete continuous culvert carrying Akumu ST over Akumu St/Vienney Ditch 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 3,750 vehicles a day, projected to reach 4,688 by 2025. The structure is 37 ft (11.3 m) long and 63 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesAkumu ST
CrossesAkumu St/Vienney Ditch
LocationTMK=4-2-50
RouteCity Street 6049
CountyHonolulu County
StateHawaii
Coordinates21.38017, -157.73031
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span8 ft (2.4 m)
Deck width63 ft (19.2 m)
Roadway width54 ft (16.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,750 (1986)
Projected traffic4,688 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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 Akumu ST over Akumu St/Vienney Ditch built?

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

What condition is Akumu ST over Akumu St/Vienney Ditch 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 Akumu ST over Akumu St/Vienney Ditch carry?

About 3,750 vehicles per day (1986 count).

How long is Akumu ST over Akumu St/Vienney Ditch?

The structure is 37 ft (11.3 m) long with a longest span of 8 ft (2.4 m) and a deck 63 ft wide.

Who owns Akumu ST over Akumu St/Vienney Ditch?

It is owned by the County Highway Agency.