US Bridges

Olohena RD over Olohena #1

Fair

Kauai County, Hawaii · 0.31MI W/Kaapuni RD · Structure no. 007430200743001

Built
2005
20 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
2,150
1989 count
Owner
County
County Highway Agency

About this bridge

Olohena RD over Olohena #1 is a prestressed concrete stringer/multi-beam or girder carrying Olohena RD over Olohena #1 in Kauai County, Hawaii. It was built in 2005, so it is 20 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 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 2,150 vehicles a day, projected to reach 2,688 by 2025. The structure is 49 ft (15 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesOlohena RD
CrossesOlohena #1
Location0.31MI W/Kaapuni RD
RouteCounty Highway 581
CountyKauai County
StateHawaii
Coordinates22.08053, -159.33488
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length49 ft (15 m)
Longest span45 ft (13.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,150 (1989)
Projected traffic2,688 by 2025
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$186,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Olohena RD over Olohena #1 built?

It was built in 2005, making it 20 years old in 2025.

What condition is Olohena RD over Olohena #1 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 September 2024.

How much traffic does Olohena RD over Olohena #1 carry?

About 2,150 vehicles per day (1989 count).

How long is Olohena RD over Olohena #1?

The structure is 49 ft (15 m) long with a longest span of 45 ft (13.6 m) and a deck 35 ft wide.

Who owns Olohena RD over Olohena #1?

It is owned by the County Highway Agency.