US Bridges

Farr HWY over Waialua Plt RD

Fair

Honolulu County, Hawaii · 0.41MI S/Kaupe RD · Structure no. 003009300501794

Built
1941
84 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
9,100
2017 count
Owner
State
State Highway Agency

About this bridge

Farr HWY over Waialua Plt RD is a concrete slab carrying Farr HWY over Waialua Plt RD in Honolulu County, Hawaii. It was built in 1941, so it is 84 years old, older 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 6 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 9,100 vehicles a day, roughly 4% of them trucks, projected to reach 8,388 by 2025. The structure is 24 ft (7.3 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFarr HWY
CrossesWaialua Plt RD
Location0.41MI S/Kaupe RD
RouteU.S. Route 930
CountyHonolulu County
StateHawaii
Coordinates21.5624, -158.11391
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating43 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,100 (2017)
Projected traffic8,388 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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$196,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Farr HWY over Waialua Plt RD built?

It was built in 1941, making it 84 years old in 2025.

What condition is Farr HWY over Waialua Plt RD 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 May 2024.

How much traffic does Farr HWY over Waialua Plt RD carry?

About 9,100 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Farr HWY over Waialua Plt RD?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 38 ft wide.

Who owns Farr HWY over Waialua Plt RD?

It is owned by the State Highway Agency.