US Bridges

Moanalua RD over Moanalua Str Kaua Trestl

Fair

Honolulu County, Hawaii · 0.22MI E/Off Ramp Paa ST · Structure no. 003000780400392

Built
1980
45 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
206 ft
2 main spans
Daily traffic
98,600
2017 count
Owner
State
State Highway Agency

About this bridge

Moanalua RD over Moanalua Str Kaua Trestl is a prestressed concrete continuous stringer/multi-beam or girder carrying Moanalua RD over Moanalua Str Kaua Trestl in Honolulu County, Hawaii. It was built in 1980, so it is 45 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 98,600 vehicles a day, roughly 2% of them trucks, projected to reach 136,900 by 2025. The structure is 206 ft (62.8 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMoanalua RD
CrossesMoanalua Str Kaua Trestl
Location0.22MI E/Off Ramp Paa ST
RouteU.S. Route 0H201
CountyHonolulu County
StateHawaii
Coordinates21.34558, -157.89324
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length206 ft (62.8 m)
Longest span104 ft (31.7 m)
Deck width33 ft (10 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98,600 (2017)
Projected traffic136,900 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$900,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Moanalua RD over Moanalua Str Kaua Trestl built?

It was built in 1980, making it 45 years old in 2025.

What condition is Moanalua RD over Moanalua Str Kaua Trestl 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 May 2023.

How much traffic does Moanalua RD over Moanalua Str Kaua Trestl carry?

About 98,600 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Moanalua RD over Moanalua Str Kaua Trestl?

The structure is 206 ft (62.8 m) long with a longest span of 104 ft (31.7 m) and a deck 33 ft wide.

Who owns Moanalua RD over Moanalua Str Kaua Trestl?

It is owned by the State Highway Agency.