US Bridges

Komo Mai DR over Komo Mai Dr/Drainage Cnl

Good

Honolulu County, Hawaii · TMK=9-8-2-09 · Structure no. 003973001100001

Built
1975
50 years old
Condition
Good
inspected November 2023
Type
Culvert
Steel
Length
29 ft
2 main spans
Daily traffic
9,543
2009 count
Owner
County
County Highway Agency

About this bridge

Komo Mai DR over Komo Mai Dr/Drainage Cnl is a steel culvert carrying Komo Mai DR over Komo Mai Dr/Drainage Cnl in Honolulu County, Hawaii. It was built in 1975, so it is 50 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 9,543 vehicles a day, projected to reach 11,860 by 2029. The structure is 29 ft (8.8 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKomo Mai DR
CrossesKomo Mai Dr/Drainage Cnl
LocationTMK=9-8-2-09
RouteCity Street 97300
CountyHonolulu County
StateHawaii
Coordinates21.39893, -157.94485
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span12 ft (3.7 m)
Deck width60 ft (18.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,543 (2009)
Projected traffic11,860 by 2029
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$317,000
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1975, making it 50 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 9,543 vehicles per day (2009 count).

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

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 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.