US Bridges

Kalopa Road over Kahawailiilii Gulch

Fair

Hawaii County, Hawaii · Tmk: 4-4-004:004 · Structure no. 001440001100010

Built
1919
106 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
32 ft
1 main span
Daily traffic
90
1981 count
Owner
County
County Highway Agency

About this bridge

Kalopa Road over Kahawailiilii Gulch is a concrete stringer/multi-beam or girder carrying Kalopa Road over Kahawailiilii Gulch in Hawaii County, Hawaii. It was built in 1919, so it is 106 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.

It carries about 90 vehicles a day, projected to reach 113 by 2025. The structure is 32 ft (9.8 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesKalopa Road
CrossesKahawailiilii Gulch
LocationTmk: 4-4-004:004
RouteCounty Highway 0
CountyHawaii County
StateHawaii
Coordinates20.0652, -155.43926
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment6: Equal to present minimum criteria
Operating rating26.5 US tons
Inventory rating20.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span26 ft (7.9 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (1981)
Projected traffic113 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
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$187,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kalopa Road over Kahawailiilii Gulch built?

It was built in 1919, making it 106 years old in 2025.

What condition is Kalopa Road over Kahawailiilii 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 May 2024.

How much traffic does Kalopa Road over Kahawailiilii Gulch carry?

About 90 vehicles per day (1981 count).

How long is Kalopa Road over Kahawailiilii Gulch?

The structure is 32 ft (9.8 m) long with a longest span of 26 ft (7.9 m) and a deck 20 ft wide.

Who owns Kalopa Road over Kahawailiilii Gulch?

It is owned by the County Highway Agency.