US Bridges

Anini Road over Anini Bridge No. 2

GoodPosted for load

Kauai County, Hawaii · 2 KM Off HWY 56 · Structure no. 007510001510002

Built
2017
8 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
500
2013 count
Owner
County
County Highway Agency

About this bridge

Anini Road over Anini Bridge No. 2 is a prestressed concrete stringer/multi-beam or girder carrying Anini Road over Anini Bridge No. 2 in Kauai County, Hawaii. It was built in 2017, so it is 8 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. Its operating status is: posted for load restriction.

It carries about 500 vehicles a day, roughly 50% of them trucks, projected to reach 1,000 by 2035. The structure is 38 ft (11.7 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesAnini Road
CrossesAnini Bridge No. 2
Location2 KM Off HWY 56
RouteCity Street 0
StateHawaii
Coordinates22.22258, -159.44144
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations on dry land well above flood water elevations
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.4 US tons
Inventory rating19.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length38 ft (11.7 m)
Longest span33 ft (10.1 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2013)
Projected traffic1,000 by 2035
Trucks50%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesOther
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Anini Road over Anini Bridge No. 2 built?

It was built in 2017, making it 8 years old in 2025.

What condition is Anini Road over Anini Bridge No. 2 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 September 2024.

How much traffic does Anini Road over Anini Bridge No. 2 carry?

About 500 vehicles per day (2013 count), of which roughly 50% are trucks.

How long is Anini Road over Anini Bridge No. 2?

The structure is 38 ft (11.7 m) long with a longest span of 33 ft (10.1 m) and a deck 16 ft wide.

Who owns Anini Road over Anini Bridge No. 2?

It is owned by the County Highway Agency.