US Bridges

Farr HWY over Waikele Canal Ob

Good

Honolulu County, Hawaii · 0.22MI E/Waikele RD · Structure no. 003090001400113

Built
1963
62 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
122 ft
2 main spans
Daily traffic
27,300
2017 count
Owner
State
State Highway Agency

About this bridge

Farr HWY over Waikele Canal Ob is a prestressed concrete stringer/multi-beam or girder carrying Farr HWY over Waikele Canal Ob in Honolulu County, Hawaii. It was built in 1963, so it is 62 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 27,300 vehicles a day, roughly 3% of them trucks, projected to reach 40,031 by 2025. The structure is 122 ft (37.2 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFarr HWY
CrossesWaikele Canal Ob
Location0.22MI E/Waikele RD
RouteU.S. Route 7101
StateHawaii
Coordinates21.38303, -158.01058
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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating80.4 US tons
Inventory rating25.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span61 ft (18.6 m)
Deck width48 ft (14.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,300 (2017)
Projected traffic40,031 by 2025
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$840,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Farr HWY over Waikele Canal Ob built?

It was built in 1963, making it 62 years old in 2025.

What condition is Farr HWY over Waikele Canal Ob 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 November 2024.

How much traffic does Farr HWY over Waikele Canal Ob carry?

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

How long is Farr HWY over Waikele Canal Ob?

The structure is 122 ft (37.2 m) long with a longest span of 61 ft (18.6 m) and a deck 48 ft wide.

Who owns Farr HWY over Waikele Canal Ob?

It is owned by the State Highway Agency.