US Bridges

Kahekili HWY over Ahuimanu Strm

Good

Honolulu County, Hawaii · 0.22MI N/Ahuimanu Pl Br · Structure no. 003000830303738

Built
1971
54 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
23,200
2017 count
Owner
State
State Highway Agency

About this bridge

Kahekili HWY over Ahuimanu Strm is a prestressed concrete stringer/multi-beam or girder carrying Kahekili HWY over Ahuimanu Strm in Honolulu County, Hawaii. It was built in 1971, so it is 54 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 23,200 vehicles a day, roughly 3% of them trucks, projected to reach 20,845 by 2025. The structure is 82 ft (25 m) long and 49 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesKahekili HWY
CrossesAhuimanu Strm
Location0.22MI N/Ahuimanu Pl Br
RouteU.S. Route 83
StateHawaii
Coordinates21.44584, -157.83262
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating27 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25 m)
Longest span77 ft (23.5 m)
Deck width49 ft (15 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,200 (2017)
Projected traffic20,845 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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$624,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kahekili HWY over Ahuimanu Strm built?

It was built in 1971, making it 54 years old in 2025.

What condition is Kahekili HWY over Ahuimanu 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 June 2024.

How much traffic does Kahekili HWY over Ahuimanu Strm carry?

About 23,200 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Kahekili HWY over Ahuimanu Strm?

The structure is 82 ft (25 m) long with a longest span of 77 ft (23.5 m) and a deck 49 ft wide.

Who owns Kahekili HWY over Ahuimanu Strm?

It is owned by the State Highway Agency.