US Bridges

Auloa RD over Kahanaiki Stream

Good

Honolulu County, Hawaii · TMK=4-2-07 · Structure no. 003406001100001

Built
1921
104 years old
Condition
Good
inspected January 2025
Type
Tee Beam
Concrete
Length
44 ft
1 main span
Daily traffic
206
1986 count
Owner
County
County Highway Agency

About this bridge

Auloa RD over Kahanaiki Stream is a concrete tee beam carrying Auloa RD over Kahanaiki Stream in Honolulu County, Hawaii. It was built in 1921, so it is 104 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.

It carries about 206 vehicles a day, projected to reach 258 by 2025. The structure is 44 ft (13.4 m) long and 27 ft wide.

Location

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CarriesAuloa RD
CrossesKahanaiki Stream
LocationTMK=4-2-07
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.37361, -157.76734
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.4 US tons
Inventory rating31.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width27 ft (8.1 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic206 (1986)
Projected traffic258 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Auloa RD over Kahanaiki Stream built?

It was built in 1921, making it 104 years old in 2025.

What condition is Auloa RD over Kahanaiki Stream 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 January 2025.

How much traffic does Auloa RD over Kahanaiki Stream carry?

About 206 vehicles per day (1986 count).

How long is Auloa RD over Kahanaiki Stream?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 27 ft wide.

Who owns Auloa RD over Kahanaiki Stream?

It is owned by the County Highway Agency.