US Bridges

Omao RD over Omao Strm Br

Fair

Kauai County, Hawaii · 0.39 MI N/Koloa-Omao JCT · Structure no. 007270011127001

Built
2010
15 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
1,220
1986 count
Owner
County
County Highway Agency

About this bridge

Omao RD over Omao Strm Br is a prestressed concrete stringer/multi-beam or girder carrying Omao RD over Omao Strm Br in Kauai County, Hawaii. It was built in 2010, so it is 15 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 1,220 vehicles a day, projected to reach 1,525 by 2025. The structure is 66 ft (20.2 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesOmao RD
CrossesOmao Strm Br
Location0.39 MI N/Koloa-Omao JCT
RouteCounty Highway 27001
CountyKauai County
StateHawaii
Coordinates21.91176, -159.47252
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 protection8 Very GoodNo problems noted.
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length66 ft (20.2 m)
Longest span60 ft (18.3 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,220 (1986)
Projected traffic1,525 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$232,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Omao RD over Omao Strm Br built?

It was built in 2010, making it 15 years old in 2025.

What condition is Omao RD over Omao Strm Br 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 Omao RD over Omao Strm Br carry?

About 1,220 vehicles per day (1986 count).

How long is Omao RD over Omao Strm Br?

The structure is 66 ft (20.2 m) long with a longest span of 60 ft (18.3 m) and a deck 35 ft wide.

Who owns Omao RD over Omao Strm Br?

It is owned by the County Highway Agency.