US Bridges

Managers Dr. over Drainage Channel

Fair

Honolulu County, Hawaii · TMK:9-4-02 · Structure no. 003996001100001

Built
1990
35 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
2,000
2009 count
Owner
County
County Highway Agency

About this bridge

Managers Dr. over Drainage Channel is a concrete culvert carrying Managers Dr. over Drainage Channel in Honolulu County, Hawaii. It was built in 1990, so it is 35 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 5 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 2,000 vehicles a day, projected to reach 2,580 by 2029. The structure is 30 ft (9.1 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesManagers Dr.
CrossesDrainage Channel
LocationTMK:9-4-02
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.39357, -158.01377
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
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 geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width60 ft (18.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2009)
Projected traffic2,580 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
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$388,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Managers Dr. over Drainage Channel built?

It was built in 1990, making it 35 years old in 2025.

What condition is Managers Dr. over Drainage Channel 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 December 2023.

How much traffic does Managers Dr. over Drainage Channel carry?

About 2,000 vehicles per day (2009 count).

How long is Managers Dr. over Drainage Channel?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 60 ft wide.

Who owns Managers Dr. over Drainage Channel?

It is owned by the County Highway Agency.