US Bridges

Moanalua RD Ob over Moanalua Strm

Good

Honolulu County, Hawaii · 0.23MI E/Off Ramp Paa ST · Structure no. 003000780400393

Built
1981
44 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
98 ft
1 main span
Daily traffic
98,600
2017 count
Owner
State
State Highway Agency

About this bridge

Moanalua RD Ob over Moanalua Strm is a prestressed concrete stringer/multi-beam or girder carrying Moanalua RD Ob over Moanalua Strm in Honolulu County, Hawaii. It was built in 1981, so it is 44 years old, younger than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 98,600 vehicles a day, roughly 2% of them trucks, projected to reach 136,900 by 2025. The structure is 98 ft (29.9 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMoanalua RD Ob
CrossesMoanalua Strm
Location0.23MI E/Off Ramp Paa ST
RouteU.S. Route 0H201
StateHawaii
Coordinates21.3452, -157.89303
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length98 ft (29.9 m)
Longest span98 ft (29.9 m)
Deck width78 ft (23.7 m)
Roadway width75 ft (22.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98,600 (2017)
Projected traffic136,900 by 2025
Trucks2%
Lanes on structure5
Traffic directionOne-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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Moanalua RD Ob over Moanalua Strm built?

It was built in 1981, making it 44 years old in 2025.

What condition is Moanalua RD Ob over Moanalua Strm in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Moanalua RD Ob over Moanalua Strm carry?

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

How long is Moanalua RD Ob over Moanalua Strm?

The structure is 98 ft (29.9 m) long with a longest span of 98 ft (29.9 m) and a deck 78 ft wide.

Who owns Moanalua RD Ob over Moanalua Strm?

It is owned by the State Highway Agency.