US Bridges

Worchester Ave over Manuwai Canal

Fair

Honolulu County, Hawaii · 500 M SW of Faa Entrance · Structure no. 1HI85117

Built
1944
81 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
57 ft
8 main spans
Daily traffic
1,000
2017 count
Owner
Federal
Navy / Marines

About this bridge

Worchester Ave over Manuwai Canal is a concrete culvert carrying Worchester Ave over Manuwai Canal in Honolulu County, Hawaii. It was built in 1944, so it is 81 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.

It carries about 1,000 vehicles a day, roughly 10% of them trucks, projected to reach 1,200 by 2043. The structure is 57 ft (17.4 m) long and 66 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesWorchester Ave
CrossesManuwai Canal
Location500 M SW of Faa Entrance
CountyHonolulu County
StateHawaii
Coordinates21.31818, -157.92962
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.6 US tons
Inventory rating53.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans8
Design loadUnknown
Structure length57 ft (17.4 m)
Longest span6 ft (1.8 m)
Deck width66 ft (20.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2017)
Projected traffic1,200 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$186,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Worchester Ave over Manuwai Canal built?

It was built in 1944, making it 81 years old in 2025.

What condition is Worchester Ave over Manuwai 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 Worchester Ave over Manuwai Canal carry?

About 1,000 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Worchester Ave over Manuwai Canal?

The structure is 57 ft (17.4 m) long with a longest span of 6 ft (1.8 m) and a deck 66 ft wide.

Who owns Worchester Ave over Manuwai Canal?

It is owned by the Navy / Marines.