US Bridges

Farr HWY over Kapakahi Strm

Fair

Honolulu County, Hawaii · 0.08MI W/Waipahu Depot RD · Structure no. 003090001400136

Built
1964
61 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
27,300
2017 count
Owner
State
State Highway Agency

About this bridge

Farr HWY over Kapakahi Strm is a concrete slab carrying Farr HWY over Kapakahi Strm in Honolulu County, Hawaii. It was built in 1964, so it is 61 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 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 27,300 vehicles a day, roughly 3% of them trucks, projected to reach 40,031 by 2025. The structure is 23 ft (7 m) long and 114 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFarr HWY
CrossesKapakahi Strm
Location0.08MI W/Waipahu Depot RD
RouteU.S. Route 7101
StateHawaii
Coordinates21.38357, -158.00659
Functional classUrban Other Principal 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width114 ft (34.8 m)
Roadway width101 ft (30.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,300 (2017)
Projected traffic40,031 by 2025
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Farr HWY over Kapakahi Strm built?

It was built in 1964, making it 61 years old in 2025.

What condition is Farr HWY over Kapakahi 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 November 2024.

How much traffic does Farr HWY over Kapakahi Strm carry?

About 27,300 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Farr HWY over Kapakahi Strm?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 114 ft wide.

Who owns Farr HWY over Kapakahi Strm?

It is owned by the State Highway Agency.