US Bridges

Honokaa-Waipio RD over Kahaupu Stream

Fair

Hawaii County, Hawaii · Tmk: 4-4-005:999 · Structure no. 001002400500949

Built
1953
72 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
2,700
2016 count
Owner
County
County Highway Agency

About this bridge

Honokaa-Waipio RD over Kahaupu Stream is a concrete continuous culvert carrying Honokaa-Waipio RD over Kahaupu Stream in Hawaii County, Hawaii. It was built in 1953, so it is 72 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 2,700 vehicles a day, roughly 6% of them trucks, projected to reach 4,518 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesHonokaa-Waipio RD
CrossesKahaupu Stream
LocationTmk: 4-4-005:999
RouteCounty Highway 240
CountyHawaii County
StateHawaii
Coordinates20.07078, -155.45187
Functional classRural Major 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2016)
Projected traffic4,518 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$31,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Honokaa-Waipio RD over Kahaupu Stream built?

It was built in 1953, making it 72 years old in 2025.

What condition is Honokaa-Waipio RD over Kahaupu Stream 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 Honokaa-Waipio RD over Kahaupu Stream carry?

About 2,700 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is Honokaa-Waipio RD over Kahaupu Stream?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns Honokaa-Waipio RD over Kahaupu Stream?

It is owned by the County Highway Agency.