US Bridges

Rice ST over Nawiliwili Strm

Fair

Kauai County, Hawaii · 0.08MI N/Waapa RD · Structure no. 007000510400023

Built
1933
92 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
57 ft
1 main span
Daily traffic
13,600
2017 count
Owner
State
State Highway Agency

About this bridge

Rice ST over Nawiliwili Strm is a concrete tee beam carrying Rice ST over Nawiliwili Strm in Kauai County, Hawaii. It was built in 1933, so it is 92 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 5 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 13,600 vehicles a day, roughly 5% of them trucks, projected to reach 14,571 by 2025. The structure is 57 ft (17.5 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesRice ST
CrossesNawiliwili Strm
Location0.08MI N/Waapa RD
RouteU.S. Route 51
CountyKauai County
StateHawaii
Coordinates21.96078, -159.35287
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length57 ft (17.5 m)
Longest span52 ft (15.8 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,600 (2017)
Projected traffic14,571 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$265,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rice ST over Nawiliwili Strm built?

It was built in 1933, making it 92 years old in 2025.

What condition is Rice ST over Nawiliwili Strm 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 April 2023.

How much traffic does Rice ST over Nawiliwili Strm carry?

About 13,600 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Rice ST over Nawiliwili Strm?

The structure is 57 ft (17.5 m) long with a longest span of 52 ft (15.8 m) and a deck 26 ft wide.

Who owns Rice ST over Nawiliwili Strm?

It is owned by the State Highway Agency.