US Bridges

FAI-H1 over Waikele Strm Ob

Fair

Honolulu County, Hawaii · 0.97MI E/Kunia RD · Structure no. 003000H10100636

Built
1968
57 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
832 ft
9 main spans
Daily traffic
174,200
2017 count
Owner
State
State Highway Agency

About this bridge

FAI-H1 over Waikele Strm Ob is a prestressed concrete stringer/multi-beam or girder carrying FAI-H1 over Waikele Strm Ob 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 174,200 vehicles a day, roughly 4% of them trucks, projected to reach 176,247 by 2025. The structure is 832 ft (253.6 m) long and 67 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFAI-H1
CrossesWaikele Strm Ob
Location0.97MI E/Kunia RD
RouteInterstate 0H1
CountyHonolulu County
StateHawaii
Coordinates21.39099, -158.01791
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length832 ft (253.6 m)
Longest span95 ft (29 m)
Deck width67 ft (20.3 m)
Roadway width63 ft (19.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic174,200 (2017)
Projected traffic176,247 by 2025
Trucks4%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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-H1 over Waikele Strm Ob built?

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

What condition is FAI-H1 over Waikele Strm Ob 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 January 2025.

How much traffic does FAI-H1 over Waikele Strm Ob carry?

About 174,200 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is FAI-H1 over Waikele Strm Ob?

The structure is 832 ft (253.6 m) long with a longest span of 95 ft (29 m) and a deck 67 ft wide.

Who owns FAI-H1 over Waikele Strm Ob?

It is owned by the State Highway Agency.