US Bridges

Waianuenue Ave over Piihonua-Wailuku River

Fair

Hawaii County, Hawaii · Tmk 2-5-28:17 · Structure no. 001250001100002

Built
1970
55 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
135 ft
2 main spans
Daily traffic
370
1986 count
Owner
County
County Highway Agency

About this bridge

Waianuenue Ave over Piihonua-Wailuku River is a prestressed concrete stringer/multi-beam or girder carrying Waianuenue Ave over Piihonua-Wailuku River in Hawaii County, Hawaii. It was built in 1970, so it is 55 years old, younger 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 370 vehicles a day, projected to reach 463 by 2025. The structure is 135 ft (41.3 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesWaianuenue Ave
CrossesPiihonua-Wailuku River
LocationTmk 2-5-28:17
CountyHawaii County
StateHawaii
Coordinates19.715, -155.13836
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating37.1 US tons
Inventory rating22.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length135 ft (41.3 m)
Longest span73 ft (22.1 m)
Deck width36 ft (11 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic370 (1986)
Projected traffic463 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRelief for waterway
Detour if closed3.7 mi (6 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$680,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Waianuenue Ave over Piihonua-Wailuku River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Waianuenue Ave over Piihonua-Wailuku River 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 2025.

How much traffic does Waianuenue Ave over Piihonua-Wailuku River carry?

About 370 vehicles per day (1986 count).

How long is Waianuenue Ave over Piihonua-Wailuku River?

The structure is 135 ft (41.3 m) long with a longest span of 73 ft (22.1 m) and a deck 36 ft wide.

Who owns Waianuenue Ave over Piihonua-Wailuku River?

It is owned by the County Highway Agency.