US Bridges

Maluhia RD over Waihohonu Stream

FairPosted for load

Kauai County, Hawaii · 1.91MI N/Koloa Cem RD · Structure no. 007280500728001

Built
1910
115 years old, rebuilt 1966
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
40 ft
2 main spans
Daily traffic
8,388
1989 count
Owner
County
County Highway Agency

About this bridge

Maluhia RD over Waihohonu Stream is a concrete slab carrying Maluhia RD over Waihohonu Stream in Kauai County, Hawaii. It was built in 1910 and reconstructed in 1966, so it is 115 years old, older 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. Its operating status is: posted for load restriction.

It carries about 8,388 vehicles a day, projected to reach 10,485 by 2025. The structure is 40 ft (12.1 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesMaluhia RD
CrossesWaihohonu Stream
Location1.91MI N/Koloa Cem RD
RouteCounty Highway 520
CountyKauai County
StateHawaii
Coordinates21.939, -159.46777
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length40 ft (12.1 m)
Longest span17 ft (5.2 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,388 (1989)
Projected traffic10,485 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$250,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Maluhia RD over Waihohonu Stream built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1966.

What condition is Maluhia RD over Waihohonu Stream 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 Maluhia RD over Waihohonu Stream carry?

About 8,388 vehicles per day (1989 count).

How long is Maluhia RD over Waihohonu Stream?

The structure is 40 ft (12.1 m) long with a longest span of 17 ft (5.2 m) and a deck 31 ft wide.

Who owns Maluhia RD over Waihohonu Stream?

It is owned by the County Highway Agency.