US Bridges

Kuhio HWY over Unmd Channel Struct #4

Good

Kauai County, Hawaii · 1.02MI Nw/Kalihiwai by · Structure no. 007000560302485

Built
1963
62 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
49 ft
2 main spans
Daily traffic
15,500
2017 count
Owner
State
State Highway Agency

About this bridge

Kuhio HWY over Unmd Channel Struct #4 is a concrete continuous slab carrying Kuhio HWY over Unmd Channel Struct #4 in Kauai County, Hawaii. It was built in 1963, so it is 62 years old, younger than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,500 vehicles a day, roughly 3% of them trucks, projected to reach 10,865 by 2025. The structure is 49 ft (14.9 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKuhio HWY
CrossesUnmd Channel Struct #4
Location1.02MI Nw/Kalihiwai by
RouteU.S. Route 56
StateHawaii
Coordinates22.20836, -159.43096
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating50.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length49 ft (14.9 m)
Longest span24 ft (7.2 m)
Deck width35 ft (10.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2017)
Projected traffic10,865 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kuhio HWY over Unmd Channel Struct #4 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Kuhio HWY over Unmd Channel Struct #4 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Kuhio HWY over Unmd Channel Struct #4 carry?

About 15,500 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Kuhio HWY over Unmd Channel Struct #4?

The structure is 49 ft (14.9 m) long with a longest span of 24 ft (7.2 m) and a deck 35 ft wide.

Who owns Kuhio HWY over Unmd Channel Struct #4?

It is owned by the State Highway Agency.