US Bridges

Nakini Street over Muliwai Olena Channel

Fair

Honolulu County, Hawaii · TMK:4-1-08 · Structure no. 003432001200001

Built
1990
35 years old
Condition
Fair
inspected August 2023
Type
Slab
Prestressed Concrete
Length
22 ft
1 main span
Daily traffic
1,000
2009 count
Owner
County
County Highway Agency

About this bridge

Nakini Street over Muliwai Olena Channel is a prestressed concrete slab carrying Nakini Street over Muliwai Olena Channel in Honolulu County, Hawaii. It was built in 1990, so it is 35 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 1,000 vehicles a day, projected to reach 1,100 by 2029. The structure is 22 ft (6.8 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNakini Street
CrossesMuliwai Olena Channel
LocationTMK:4-1-08
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.32913, -157.6968
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.8 m)
Longest span20 ft (6.1 m)
Deck width56 ft (17.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2009)
Projected traffic1,100 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$198,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Nakini Street over Muliwai Olena Channel built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nakini Street over Muliwai Olena 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 August 2023.

How much traffic does Nakini Street over Muliwai Olena Channel carry?

About 1,000 vehicles per day (2009 count).

How long is Nakini Street over Muliwai Olena Channel?

The structure is 22 ft (6.8 m) long with a longest span of 20 ft (6.1 m) and a deck 56 ft wide.

Who owns Nakini Street over Muliwai Olena Channel?

It is owned by the County Highway Agency.