US Bridges

Kapaa Bypass RD over Moikeha Canal

Fair

Kauai County, Hawaii · .29 MI W. of Kuhio HWY · Structure no. 007056000400279

Built
2005
20 years old
Condition
Fair
inspected May 2023
Type
Truss - Thru
Steel
Length
90 ft
1 main span
Daily traffic
1,380
2007 count
Owner
State
State Highway Agency

About this bridge

Kapaa Bypass RD over Moikeha Canal is a steel truss - thru carrying Kapaa Bypass RD over Moikeha Canal 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 1,380 vehicles a day, roughly 3% of them trucks, projected to reach 1,740 by 2027. The structure is 90 ft (27.4 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKapaa Bypass RD
CrossesMoikeha Canal
Location.29 MI W. of Kuhio HWY
RouteU.S. Route 5600
CountyKauai County
StateHawaii
Coordinates22.08169, -159.31692
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckSteel plate
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span90 ft (27.3 m)
Deck width24 ft (7.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,380 (2007)
Projected traffic1,740 by 2027
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Kapaa Bypass RD over Moikeha Canal built?

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

What condition is Kapaa Bypass RD over Moikeha Canal 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 May 2023.

How much traffic does Kapaa Bypass RD over Moikeha Canal carry?

About 1,380 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is Kapaa Bypass RD over Moikeha Canal?

The structure is 90 ft (27.4 m) long with a longest span of 90 ft (27.3 m) and a deck 24 ft wide.

Who owns Kapaa Bypass RD over Moikeha Canal?

It is owned by the State Highway Agency.