US Bridges

Access Road over Kumumumauu Canal

Fair

Honolulu County, Hawaii · 0.1KM E of Dump Road · Structure no. 1HI85119

Built
1945
80 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
61 ft
9 main spans
Daily traffic
10
2017 count
Owner
Federal
Navy / Marines

About this bridge

Access Road over Kumumumauu Canal is a concrete culvert carrying Access Road over Kumumumauu Canal in Honolulu County, Hawaii. It was built in 1945, so it is 80 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 6 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 20 by 2043. The structure is 61 ft (18.6 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesAccess Road
CrossesKumumumauu Canal
Location0.1KM E of Dump Road
CountyHonolulu County
StateHawaii
Coordinates21.32191, -157.94937
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.2 US tons
Inventory rating31.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans9
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span5 ft (1.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2017)
Projected traffic20 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNavy / Marines
Maintained byNavy / Marines
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$73,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Access Road over Kumumumauu Canal built?

It was built in 1945, making it 80 years old in 2025.

What condition is Access Road over Kumumumauu Canal 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 June 2024.

How much traffic does Access Road over Kumumumauu Canal carry?

About 10 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Access Road over Kumumumauu Canal?

The structure is 61 ft (18.6 m) long with a longest span of 5 ft (1.5 m) and a deck 30 ft wide.

Who owns Access Road over Kumumumauu Canal?

It is owned by the Navy / Marines.