US Bridges

10th Avenue Pl over Waiomao Stream

FairPosted for load

Honolulu County, Hawaii · TMK=3-4-03 · Structure no. 003382001200001

Built
1930
95 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Concrete
Length
25 ft
1 main span
Daily traffic
400
2009 count
Owner
County
County Highway Agency

About this bridge

10th Avenue Pl over Waiomao Stream is a concrete tee beam carrying 10th Avenue Pl over Waiomao Stream in Honolulu County, Hawaii. It was built in 1930, so it is 95 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. Its operating status is: posted for load restriction.

It carries about 400 vehicles a day, projected to reach 500 by 2029. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
Carries10th Avenue Pl
CrossesWaiomao Stream
LocationTMK=3-4-03
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.30219, -157.7887
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating17.9 US tons
Inventory rating13.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.2 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2009)
Projected traffic500 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 10th Avenue Pl over Waiomao Stream built?

It was built in 1930, making it 95 years old in 2025.

What condition is 10th Avenue Pl over Waiomao Stream 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 2024.

How much traffic does 10th Avenue Pl over Waiomao Stream carry?

About 400 vehicles per day (2009 count).

How long is 10th Avenue Pl over Waiomao Stream?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.2 m) and a deck 28 ft wide.

Who owns 10th Avenue Pl over Waiomao Stream?

It is owned by the County Highway Agency.