US Bridges

FAI-H1(OFF Ramp) over Waialae Ave(off Ramp)

Fair

Honolulu County, Hawaii · 0.14MI E/Ints/Waialae Ave · Structure no. 003000H10202704

Built
1968
57 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
234 ft
4 main spans
Daily traffic
55,000
2017 count
Owner
State
State Highway Agency

About this bridge

FAI-H1(OFF Ramp) over Waialae Ave(off Ramp) is a prestressed concrete tee beam carrying FAI-H1(OFF Ramp) over Waialae Ave(off Ramp) in Honolulu County, Hawaii. It was built in 1968, so it is 57 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 55,000 vehicles a day, roughly 2% of them trucks, projected to reach 73,912 by 2025. The structure is 234 ft (71.3 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFAI-H1(OFF Ramp)
CrossesWaialae Ave(off Ramp)
Location0.14MI E/Ints/Waialae Ave
RouteInterstate 0H1
CountyHonolulu County
StateHawaii
Coordinates21.27919, -157.78964
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length234 ft (71.3 m)
Longest span66 ft (20.1 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55,000 (2017)
Projected traffic73,912 by 2025
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 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(OFF Ramp) over Waialae Ave(off Ramp) built?

It was built in 1968, making it 57 years old in 2025.

What condition is FAI-H1(OFF Ramp) over Waialae Ave(off Ramp) 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 September 2024.

How much traffic does FAI-H1(OFF Ramp) over Waialae Ave(off Ramp) carry?

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

How long is FAI-H1(OFF Ramp) over Waialae Ave(off Ramp)?

The structure is 234 ft (71.3 m) long with a longest span of 66 ft (20.1 m) and a deck 28 ft wide.

Who owns FAI-H1(OFF Ramp) over Waialae Ave(off Ramp)?

It is owned by the State Highway Agency.