US Bridges

Ala-Aolani St. over Ala Aolani/Moanalua Strm

Fair

Honolulu County, Hawaii · TMK=1-1-39 · Structure no. 003122001200001

Built
1962
63 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
32 ft
1 main span
Daily traffic
3,947
1987 count
Owner
County
County Highway Agency

About this bridge

Ala-Aolani St. over Ala Aolani/Moanalua Strm is a concrete culvert carrying Ala-Aolani St. over Ala Aolani/Moanalua Strm in Honolulu County, Hawaii. It was built in 1962, so it is 63 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 5 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 3,947 vehicles a day, projected to reach 4,934 by 2025. The structure is 32 ft (9.8 m) long and 69 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAla-Aolani St.
CrossesAla Aolani/Moanalua Strm
LocationTMK=1-1-39
RouteCity Street 7344
CountyHonolulu County
StateHawaii
Coordinates21.35972, -157.89917
Functional classUrban 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width69 ft (21.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,947 (1987)
Projected traffic4,934 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$372,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ala-Aolani St. over Ala Aolani/Moanalua Strm built?

It was built in 1962, making it 63 years old in 2025.

What condition is Ala-Aolani St. over Ala Aolani/Moanalua Strm 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 2024.

How much traffic does Ala-Aolani St. over Ala Aolani/Moanalua Strm carry?

About 3,947 vehicles per day (1987 count).

How long is Ala-Aolani St. over Ala Aolani/Moanalua Strm?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 69 ft wide.

Who owns Ala-Aolani St. over Ala Aolani/Moanalua Strm?

It is owned by the County Highway Agency.