US Bridges

FAI-H1 over Kunia Sep Ob

Good

Honolulu County, Hawaii · 2.21MI E/Palehua RD · Structure no. 003000H10100538

Built
1967
58 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
164 ft
2 main spans
Daily traffic
119,500
2017 count
Owner
State
State Highway Agency

About this bridge

FAI-H1 over Kunia Sep Ob is a prestressed concrete stringer/multi-beam or girder carrying FAI-H1 over Kunia Sep Ob 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 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 119,500 vehicles a day, roughly 5% of them trucks, projected to reach 118,342 by 2025. The structure is 164 ft (50 m) long and 67 ft wide.

CarriesFAI-H1
CrossesKunia Sep Ob
Location2.21MI E/Palehua RD
RouteInterstate 0H1
StateHawaii
Coordinates21.38384, -158.03221
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating37.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length164 ft (50 m)
Longest span80 ft (24.4 m)
Deck width67 ft (20.3 m)
Roadway width63 ft (19.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119,500 (2017)
Projected traffic118,342 by 2025
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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$1.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAI-H1 over Kunia Sep Ob built?

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

What condition is FAI-H1 over Kunia Sep Ob 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 March 2024.

How much traffic does FAI-H1 over Kunia Sep Ob carry?

About 119,500 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is FAI-H1 over Kunia Sep Ob?

The structure is 164 ft (50 m) long with a longest span of 80 ft (24.4 m) and a deck 67 ft wide.

Who owns FAI-H1 over Kunia Sep Ob?

It is owned by the State Highway Agency.