US Bridges

Lagoon DR over Keehi Drainage Ditch

FairPosted for load

Honolulu County, Hawaii · 400 S. of Aolele St. · Structure no. 003000000785197

Built
1943
82 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
32 ft
4 main spans
Daily traffic
15,999
2020 count
Owner
State
State Highway Agency

About this bridge

Lagoon DR over Keehi Drainage Ditch is a concrete culvert carrying Lagoon DR over Keehi Drainage Ditch in Honolulu County, Hawaii. It was built in 1943, so it is 82 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 15,999 vehicles a day, projected to reach 20,999 by 2040. The structure is 32 ft (9.7 m) long.

Location

Open in Google Maps
CarriesLagoon DR
CrossesKeehi Drainage Ditch
Location400 S. of Aolele St.
RouteFederal Lands Road 0_
CountyHonolulu County
StateHawaii
Coordinates21.33072, -157.90212
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length32 ft (9.7 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic15,999 (2020)
Projected traffic20,999 by 2040
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed—
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lagoon DR over Keehi Drainage Ditch built?

It was built in 1943, making it 82 years old in 2025.

What condition is Lagoon DR over Keehi Drainage Ditch 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 Lagoon DR over Keehi Drainage Ditch carry?

About 15,999 vehicles per day (2020 count).

How long is Lagoon DR over Keehi Drainage Ditch?

The structure is 32 ft (9.7 m) long with a longest span of 8 ft (2.4 m).

Who owns Lagoon DR over Keehi Drainage Ditch?

It is owned by the State Highway Agency.