US Bridges

FAI-H3 over Twin 21.5X6.0 Rcb

Fair

Honolulu County, Hawaii · 1.21MI N/Kaneohe B Lo RD · Structure no. 003000H30201589

Built
1967
58 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
43 ft
2 main spans
Daily traffic
17,500
2017 count
Owner
State
State Highway Agency

About this bridge

FAI-H3 over Twin 21.5X6.0 Rcb is a concrete continuous culvert carrying FAI-H3 over Twin 21.5X6.0 Rcb in Honolulu County, Hawaii. It was built in 1967, so it is 58 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 17,500 vehicles a day, roughly 2% of them trucks, projected to reach 15,775 by 2025. The structure is 43 ft (13.1 m) long and 99 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAI-H3
CrossesTwin 21.5X6.0 Rcb
Location1.21MI N/Kaneohe B Lo RD
RouteInterstate 0H3
CountyHonolulu County
StateHawaii
Coordinates21.43541, -157.7571
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating30 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span21 ft (6.4 m)
Deck width99 ft (30.2 m)
Roadway width96 ft (29.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,500 (2017)
Projected traffic15,775 by 2025
Trucks2%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 FAI-H3 over Twin 21.5X6.0 Rcb built?

It was built in 1967, making it 58 years old in 2025.

What condition is FAI-H3 over Twin 21.5X6.0 Rcb 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 July 2024.

How much traffic does FAI-H3 over Twin 21.5X6.0 Rcb carry?

About 17,500 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is FAI-H3 over Twin 21.5X6.0 Rcb?

The structure is 43 ft (13.1 m) long with a longest span of 21 ft (6.4 m) and a deck 99 ft wide.

Who owns FAI-H3 over Twin 21.5X6.0 Rcb?

It is owned by the State Highway Agency.