US Bridges

FAL-H1(N Leg Via) over FAI-H1(N Leg Via)

Fair

Honolulu County, Hawaii · 0.27MI S/Hic Struct #8 · Structure no. 003000H10201370

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,849 ft
21 main spans
Daily traffic
110,500
2017 count
Owner
State
State Highway Agency

About this bridge

FAL-H1(N Leg Via) over FAI-H1(N Leg Via) is a prestressed concrete continuous stringer/multi-beam or girder carrying FAL-H1(N Leg Via) over FAI-H1(N Leg Via) in Honolulu County, Hawaii. It was built in 1975, so it is 50 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 110,500 vehicles a day, roughly 4% of them trucks, projected to reach 166,683 by 2025. The structure is 1,849 ft (563.6 m) long and 154 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAL-H1(N Leg Via)
CrossesFAI-H1(N Leg Via)
Location0.27MI S/Hic Struct #8
RouteInterstate 0H1
CountyHonolulu County
StateHawaii
Coordinates21.36565, -157.92846
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.1 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans21
Design loadHS 20
Structure length1,849 ft (563.6 m)
Longest span110 ft (33.5 m)
Deck width154 ft (46.9 m)
Roadway width135 ft (41 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110,500 (2017)
Projected traffic166,683 by 2025
Trucks4%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
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$59.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAL-H1(N Leg Via) over FAI-H1(N Leg Via) built?

It was built in 1975, making it 50 years old in 2025.

What condition is FAL-H1(N Leg Via) over FAI-H1(N Leg Via) 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 2023.

How much traffic does FAL-H1(N Leg Via) over FAI-H1(N Leg Via) carry?

About 110,500 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is FAL-H1(N Leg Via) over FAI-H1(N Leg Via)?

The structure is 1,849 ft (563.6 m) long with a longest span of 110 ft (33.5 m) and a deck 154 ft wide.

Who owns FAL-H1(N Leg Via) over FAI-H1(N Leg Via)?

It is owned by the State Highway Agency.