US Bridges

Kahoa Street over Maili Stream

FairPosted for load

Hawaii County, Hawaii · Tmk 2-6-012:045 · Structure no. 001260001100004

Built
1916
109 years old
Condition
Fair
inspected August 2023
Type
Girder and Floorbeam System
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
530
1986 count
Owner
County
County Highway Agency

About this bridge

Kahoa Street over Maili Stream is a concrete continuous girder and floorbeam system carrying Kahoa Street over Maili Stream in Hawaii County, Hawaii. It was built in 1916, so it is 109 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 530 vehicles a day, projected to reach 663 by 2025. The structure is 81 ft (24.8 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesKahoa Street
CrossesMaili Stream
LocationTmk 2-6-012:045
CountyHawaii County
StateHawaii
Coordinates19.75597, -155.09256
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating13.6 US tons
Inventory rating10.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length81 ft (24.8 m)
Longest span37 ft (11.3 m)
Deck width20 ft (6.2 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (1986)
Projected traffic663 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$347,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kahoa Street over Maili Stream built?

It was built in 1916, making it 109 years old in 2025.

What condition is Kahoa Street over Maili 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 August 2023.

How much traffic does Kahoa Street over Maili Stream carry?

About 530 vehicles per day (1986 count).

How long is Kahoa Street over Maili Stream?

The structure is 81 ft (24.8 m) long with a longest span of 37 ft (11.3 m) and a deck 20 ft wide.

Who owns Kahoa Street over Maili Stream?

It is owned by the County Highway Agency.