US Bridges

Kaapahu Hmstd Road over Kalopa Gulch

Fair

Hawaii County, Hawaii · Tmk: 4-4-008:002 · Structure no. 001440001100007

Built
1919
106 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
48 ft
2 main spans
Daily traffic
40
1981 count
Owner
County
County Highway Agency

About this bridge

Kaapahu Hmstd Road over Kalopa Gulch is a concrete continuous stringer/multi-beam or girder carrying Kaapahu Hmstd Road over Kalopa 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 6 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 40 vehicles a day, projected to reach 50 by 2025. The structure is 48 ft (14.5 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesKaapahu Hmstd Road
CrossesKalopa Gulch
LocationTmk: 4-4-008:002
RouteCounty Highway 0
CountyHawaii County
StateHawaii
Coordinates20.05128, -155.42143
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length48 ft (14.5 m)
Longest span20 ft (6.1 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1981)
Projected traffic50 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed5 mi (8 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$258,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kaapahu Hmstd Road over Kalopa Gulch built?

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

What condition is Kaapahu Hmstd Road over Kalopa 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 January 2024.

How much traffic does Kaapahu Hmstd Road over Kalopa Gulch carry?

About 40 vehicles per day (1981 count).

How long is Kaapahu Hmstd Road over Kalopa Gulch?

The structure is 48 ft (14.5 m) long with a longest span of 20 ft (6.1 m) and a deck 16 ft wide.

Who owns Kaapahu Hmstd Road over Kalopa Gulch?

It is owned by the County Highway Agency.