US Bridges

Hana HWY over Waiohonu Strm

Good

Maui County, Hawaii · 0.90MI S/Rd to Hamoa · Structure no. 009003600904803

Built
1915
110 years old, rebuilt 2011
Condition
Good
inspected July 2023
Type
Tee Beam
Concrete
Length
97 ft
5 main spans
Daily traffic
775
1998 count
Owner
County
County Highway Agency

About this bridge

Hana HWY over Waiohonu Strm is a concrete tee beam carrying Hana HWY over Waiohonu Strm in Maui County, Hawaii. It was built in 1915 and reconstructed in 2011, so it is 110 years old, older than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 775 vehicles a day, projected to reach 969 by 2025. The structure is 97 ft (29.6 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
CrossesWaiohonu Strm
Location0.90MI S/Rd to Hamoa
RouteCounty Highway 360
CountyMaui County
StateHawaii
Coordinates20.70533, -155.99639
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating44.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length97 ft (29.6 m)
Longest span20 ft (6.1 m)
Deck width18 ft (5.6 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic775 (1998)
Projected traffic969 by 2025
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$465,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Hana HWY over Waiohonu Strm built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 2011.

What condition is Hana HWY over Waiohonu Strm in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Hana HWY over Waiohonu Strm carry?

About 775 vehicles per day (1998 count).

How long is Hana HWY over Waiohonu Strm?

The structure is 97 ft (29.6 m) long with a longest span of 20 ft (6.1 m) and a deck 18 ft wide.

Who owns Hana HWY over Waiohonu Strm?

It is owned by the County Highway Agency.