US Bridges

Hana HWY over Waiokamilo Strm

FairPosted for load

Maui County, Hawaii · 0.02MI W/Wailua Hmstd RD · Structure no. 009003600501811

Built
1921
104 years old, rebuilt 1937
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete
Length
24 ft
1 main span
Daily traffic
1,800
2017 count
Owner
State
State Highway Agency

About this bridge

Hana HWY over Waiokamilo Strm is a concrete tee beam carrying Hana HWY over Waiokamilo Strm in Maui County, Hawaii. It was built in 1921 and reconstructed in 1937, so it is 104 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 1,800 vehicles a day, roughly 1% of them trucks, projected to reach 1,754 by 2025. The structure is 24 ft (7.3 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesHana HWY
CrossesWaiokamilo Strm
Location0.02MI W/Wailua Hmstd RD
RouteU.S. Route 360
CountyMaui County
StateHawaii
Coordinates20.84896, -156.13624
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating49.3 US tons
Inventory rating38.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span20 ft (6.2 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2017)
Projected traffic1,754 by 2025
Trucks1%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Hana HWY over Waiokamilo Strm built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1937.

What condition is Hana HWY over Waiokamilo Strm 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 July 2023.

How much traffic does Hana HWY over Waiokamilo Strm carry?

About 1,800 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Hana HWY over Waiokamilo Strm?

The structure is 24 ft (7.3 m) long with a longest span of 20 ft (6.2 m) and a deck 25 ft wide.

Who owns Hana HWY over Waiokamilo Strm?

It is owned by the State Highway Agency.