US Bridges

FAI-H1 over Waialae Via Ob-Hwy Op

Good

Honolulu County, Hawaii · 0.14MI E/Waialae Ave Sep · Structure no. 003000H10202705

Built
1969
56 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
2,161 ft
29 main spans
Daily traffic
55,000
2017 count
Owner
State
State Highway Agency

About this bridge

FAI-H1 over Waialae Via Ob-Hwy Op is a prestressed concrete tee beam carrying FAI-H1 over Waialae Via Ob-Hwy Op in Honolulu County, Hawaii. It was built in 1969, so it is 56 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 55,000 vehicles a day, roughly 2% of them trucks, projected to reach 73,912 by 2025. The structure is 2,161 ft (658.7 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAI-H1
CrossesWaialae Via Ob-Hwy Op
Location0.14MI E/Waialae Ave Sep
RouteInterstate 0H1
StateHawaii
Coordinates21.27856, -157.78719
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating37.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans29
Design loadHS 20
Structure length2,161 ft (658.7 m)
Longest span100 ft (30.5 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,000 (2017)
Projected traffic73,912 by 2025
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAI-H1 over Waialae Via Ob-Hwy Op built?

It was built in 1969, making it 56 years old in 2025.

What condition is FAI-H1 over Waialae Via Ob-Hwy Op 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 FAI-H1 over Waialae Via Ob-Hwy Op carry?

About 55,000 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is FAI-H1 over Waialae Via Ob-Hwy Op?

The structure is 2,161 ft (658.7 m) long with a longest span of 100 ft (30.5 m) and a deck 50 ft wide.

Who owns FAI-H1 over Waialae Via Ob-Hwy Op?

It is owned by the State Highway Agency.