US Bridges

Pohakea RD over Pohakuhaku Gulch

FairPosted for load

Hawaii County, Hawaii · Tmk 4-3-006:010 · Structure no. 001430001100005

Built
1936
89 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
38 ft
1 main span
Daily traffic
40
1987 count
Owner
County
County Highway Agency

About this bridge

Pohakea RD over Pohakuhaku Gulch is a concrete stringer/multi-beam or girder carrying Pohakea RD over Pohakuhaku Gulch in Hawaii County, Hawaii. It was built in 1936, so it is 89 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 5 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 38 ft (11.5 m) long and 20 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesPohakea RD
CrossesPohakuhaku Gulch
LocationTmk 4-3-006:010
CountyHawaii County
StateHawaii
Coordinates20.03246, -155.39424
Functional classRural Minor 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating17.2 US tons
Inventory rating13.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length38 ft (11.5 m)
Longest span38 ft (11.5 m)
Deck width20 ft (6.1 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 closed8.1 mi (13 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pohakea RD over Pohakuhaku Gulch built?

It was built in 1936, making it 89 years old in 2025.

What condition is Pohakea RD over Pohakuhaku 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 April 2023.

How much traffic does Pohakea RD over Pohakuhaku Gulch carry?

About 40 vehicles per day (1987 count).

How long is Pohakea RD over Pohakuhaku Gulch?

The structure is 38 ft (11.5 m) long with a longest span of 38 ft (11.5 m) and a deck 20 ft wide.

Who owns Pohakea RD over Pohakuhaku Gulch?

It is owned by the County Highway Agency.