US Bridges

Ahua ST Acc RD over Damon Op-Moanalua RD UP

Good

Honolulu County, Hawaii · 0.30MI E/Off Ramp Paa ST · Structure no. 003000781200400

Built
1980
45 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
492 ft
4 main spans
Daily traffic
108,100
2017 count
Owner
State
State Highway Agency

About this bridge

Ahua ST Acc RD over Damon Op-Moanalua RD UP is a prestressed concrete continuous box beam or girders - multiple carrying Ahua ST Acc RD over Damon Op-Moanalua RD UP 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 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 108,100 vehicles a day, roughly 2% of them trucks, projected to reach 136,900 by 2025. The structure is 492 ft (150 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAhua ST Acc RD
CrossesDamon Op-Moanalua RD UP
Location0.30MI E/Off Ramp Paa ST
RouteCity Street 0H201
StateHawaii
Coordinates21.34429, -157.89248
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.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating29.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length492 ft (150 m)
Longest span140 ft (42.7 m)
Deck width30 ft (9.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic108,100 (2017)
Projected traffic136,900 by 2025
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ahua ST Acc RD over Damon Op-Moanalua RD UP built?

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

What condition is Ahua ST Acc RD over Damon Op-Moanalua RD UP 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 Ahua ST Acc RD over Damon Op-Moanalua RD UP carry?

About 108,100 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Ahua ST Acc RD over Damon Op-Moanalua RD UP?

The structure is 492 ft (150 m) long with a longest span of 140 ft (42.7 m) and a deck 30 ft wide.

Who owns Ahua ST Acc RD over Damon Op-Moanalua RD UP?

It is owned by the State Highway Agency.