US Bridges

Kahoa Street over Honolii Stream

FairPosted for load

Hawaii County, Hawaii · Tmk 2-6-12:34 · Structure no. 001260001100006

Built
1911
114 years old
Condition
Fair
inspected January 2024
Type
Arch - Thru
Concrete Continuous
Length
203 ft
6 main spans
Daily traffic
160
1986 count
Owner
County
County Highway Agency

About this bridge

Kahoa Street over Honolii Stream is a concrete continuous arch - thru carrying Kahoa Street over Honolii Stream in Hawaii County, Hawaii. It was built in 1911, so it is 114 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 160 vehicles a day, projected to reach 200 by 2025. The structure is 203 ft (61.9 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesKahoa Street
CrossesHonolii Stream
LocationTmk 2-6-12:34
CountyHawaii County
StateHawaii
Coordinates19.75828, -155.09596
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating17.9 US tons
Inventory rating13.9 US tons

Structure

Structure typeArch - Thru
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6 (+1 approach)
Design loadUnknown
Structure length203 ft (61.9 m)
Longest span70 ft (21.3 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (1986)
Projected traffic200 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$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kahoa Street over Honolii Stream built?

It was built in 1911, making it 114 years old in 2025.

What condition is Kahoa Street over Honolii 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 January 2024.

How much traffic does Kahoa Street over Honolii Stream carry?

About 160 vehicles per day (1986 count).

How long is Kahoa Street over Honolii Stream?

The structure is 203 ft (61.9 m) long with a longest span of 70 ft (21.3 m) and a deck 20 ft wide.

Who owns Kahoa Street over Honolii Stream?

It is owned by the County Highway Agency.