US Bridges

Hauola Road over Waipunahina Gulch

FairPosted for load

Hawaii County, Hawaii · Tmk 4-3-004:016 · Structure no. 001430001100001

Built
1928
97 years old
Condition
Fair
inspected November 2024
Type
Arch - Deck
Concrete
Length
118 ft
3 main spans
Daily traffic
40
1987 count
Owner
County
County Highway Agency

About this bridge

Hauola Road over Waipunahina Gulch is a concrete arch - deck carrying Hauola Road over Waipunahina Gulch in Hawaii County, Hawaii. It was built in 1928, so it is 97 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 40 vehicles a day, projected to reach 50 by 2025. The structure is 118 ft (36 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHauola Road
CrossesWaipunahina Gulch
LocationTmk 4-3-004:016
RouteCounty Highway 0
CountyHawaii County
StateHawaii
Coordinates20.04373, -155.38017
Functional classRural 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.
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 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating16.1 US tons
Inventory rating12.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length118 ft (36 m)
Longest span80 ft (24.4 m)
Deck width21 ft (6.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1987)
Projected traffic50 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 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$540,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hauola Road over Waipunahina Gulch built?

It was built in 1928, making it 97 years old in 2025.

What condition is Hauola Road over Waipunahina Gulch 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 2024.

How much traffic does Hauola Road over Waipunahina Gulch carry?

About 40 vehicles per day (1987 count).

How long is Hauola Road over Waipunahina Gulch?

The structure is 118 ft (36 m) long with a longest span of 80 ft (24.4 m) and a deck 21 ft wide.

Who owns Hauola Road over Waipunahina Gulch?

It is owned by the County Highway Agency.