US Bridges

Hana HWY over Kahalaowaka

FairPosted for load

Maui County, Hawaii · 0.93MI E/Lower Nahiku RD · Structure no. 009003600502598

Built
1926
99 years old
Condition
Fair
inspected November 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 Kahalaowaka is a concrete tee beam carrying Hana HWY over Kahalaowaka in Maui County, Hawaii. It was built in 1926, so it is 99 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 2,179 by 2025. The structure is 24 ft (7.4 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesHana HWY
CrossesKahalaowaka
Location0.93MI E/Lower Nahiku RD
RouteU.S. Route 360
CountyMaui County
StateHawaii
Coordinates20.80558, -156.08447
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length24 ft (7.4 m)
Longest span22 ft (6.6 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2017)
Projected traffic2,179 by 2025
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Kahalaowaka built?

It was built in 1926, making it 99 years old in 2025.

What condition is Hana HWY over Kahalaowaka 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 November 2023.

How much traffic does Hana HWY over Kahalaowaka carry?

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

How long is Hana HWY over Kahalaowaka?

The structure is 24 ft (7.4 m) long with a longest span of 22 ft (6.6 m) and a deck 18 ft wide.

Who owns Hana HWY over Kahalaowaka?

It is owned by the State Highway Agency.