US Bridges

Komo Mai DR over Komo Mai Dr/Drainage Cnl

Good

Honolulu County, Hawaii · TMK=9-8-2-2 · Structure no. 003974001100001

Built
1972
53 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
10,265
1989 count
Owner
County
County Highway Agency

About this bridge

Komo Mai DR over Komo Mai Dr/Drainage Cnl is a concrete culvert carrying Komo Mai DR over Komo Mai Dr/Drainage Cnl in Honolulu County, Hawaii. It was built in 1972, so it is 53 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 10,265 vehicles a day, projected to reach 12,831 by 2025. The structure is 21 ft (6.5 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesKomo Mai DR
CrossesKomo Mai Dr/Drainage Cnl
LocationTMK=9-8-2-2
RouteCity Street 97400
StateHawaii
Coordinates21.40081, -157.94831
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55.3 US tons
Inventory rating42.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length21 ft (6.5 m)
Longest span21 ft (6.5 m)
Deck width60 ft (18.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,265 (1989)
Projected traffic12,831 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$281,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Komo Mai DR over Komo Mai Dr/Drainage Cnl built?

It was built in 1972, making it 53 years old in 2025.

What condition is Komo Mai DR over Komo Mai Dr/Drainage Cnl 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 2023.

How much traffic does Komo Mai DR over Komo Mai Dr/Drainage Cnl carry?

About 10,265 vehicles per day (1989 count).

How long is Komo Mai DR over Komo Mai Dr/Drainage Cnl?

The structure is 21 ft (6.5 m) long with a longest span of 21 ft (6.5 m) and a deck 60 ft wide.

Who owns Komo Mai DR over Komo Mai Dr/Drainage Cnl?

It is owned by the County Highway Agency.