US Bridges

Ala Aolani ST over Moanalua Strm

Good

Honolulu County, Hawaii · 0.55MI E/Ala Kapuna RD · Structure no. 003000780400279

Built
1973
52 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
183 ft
3 main spans
Daily traffic
124,000
2017 count
Owner
State
State Highway Agency

About this bridge

Ala Aolani ST over Moanalua Strm is a prestressed concrete continuous stringer/multi-beam or girder carrying Ala Aolani ST over Moanalua Strm in Honolulu County, Hawaii. It was built in 1973, so it is 52 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 124,000 vehicles a day, roughly 2% of them trucks, projected to reach 159,229 by 2025. The structure is 183 ft (55.8 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAla Aolani ST
CrossesMoanalua Strm
Location0.55MI E/Ala Kapuna RD
RouteU.S. Route 0H201
StateHawaii
Coordinates21.36048, -157.89879
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 protection7 GoodSome minor problems.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating81 US tons
Inventory rating57.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length183 ft (55.8 m)
Longest span67 ft (20.4 m)
Deck width67 ft (20.3 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic124,000 (2017)
Projected traffic159,229 by 2025
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$1.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Ala Aolani ST over Moanalua Strm built?

It was built in 1973, making it 52 years old in 2025.

What condition is Ala Aolani ST 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 Ala Aolani ST over Moanalua Strm carry?

About 124,000 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Ala Aolani ST over Moanalua Strm?

The structure is 183 ft (55.8 m) long with a longest span of 67 ft (20.4 m) and a deck 67 ft wide.

Who owns Ala Aolani ST over Moanalua Strm?

It is owned by the State Highway Agency.