US Bridges

N Kuakini ST over Waiolani Strm

GoodPosted for load

Honolulu County, Hawaii · 100N/HUNA/N Kuakini ST · Structure no. 003083321400019

Built
1934
91 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Concrete
Length
45 ft
1 main span
Daily traffic
14,427
1987 count
Owner
County
County Highway Agency

About this bridge

N Kuakini ST over Waiolani Strm is a concrete tee beam carrying N Kuakini ST over Waiolani Strm in Honolulu County, Hawaii. It was built in 1934, so it is 91 years old, older 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. Its operating status is: posted for load restriction.

It carries about 14,427 vehicles a day, projected to reach 18,034 by 2025. The structure is 45 ft (13.7 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN Kuakini ST
CrossesWaiolani Strm
Location100N/HUNA/N Kuakini ST
RouteCity Street 7542
StateHawaii
Coordinates21.32148, -157.85551
Functional classUrban Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.4 US tons
Inventory rating15.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length45 ft (13.7 m)
Longest span37 ft (11.3 m)
Deck width52 ft (16 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,427 (1987)
Projected traffic18,034 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was N Kuakini ST over Waiolani Strm built?

It was built in 1934, making it 91 years old in 2025.

What condition is N Kuakini ST over Waiolani 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 October 2024.

How much traffic does N Kuakini ST over Waiolani Strm carry?

About 14,427 vehicles per day (1987 count).

How long is N Kuakini ST over Waiolani Strm?

The structure is 45 ft (13.7 m) long with a longest span of 37 ft (11.3 m) and a deck 52 ft wide.

Who owns N Kuakini ST over Waiolani Strm?

It is owned by the County Highway Agency.