US Bridges

FAI-H1 over Waiau Ic-Moanalua RD

Fair

Honolulu County, Hawaii · 0.28MI E/Kam HWY · Structure no. 003000H10201059

Built
1970
55 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
244 ft
2 main spans
Daily traffic
202,900
2017 count
Owner
State
State Highway Agency

About this bridge

FAI-H1 over Waiau Ic-Moanalua RD is a concrete continuous box beam or girders - multiple carrying FAI-H1 over Waiau Ic-Moanalua RD in Honolulu County, Hawaii. It was built in 1970, so it is 55 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 202,900 vehicles a day, roughly 3% of them trucks, projected to reach 239,857 by 2025. The structure is 244 ft (74.4 m) long and 195 ft wide.

Location

Open in Google Maps
CarriesFAI-H1
CrossesWaiau Ic-Moanalua RD
Location0.28MI E/Kam HWY
RouteInterstate 0H1
CountyHonolulu County
StateHawaii
Coordinates21.39236, -157.95913
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length244 ft (74.4 m)
Longest span132 ft (40.2 m)
Deck width195 ft (59.5 m)
Roadway width192 ft (58.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic202,900 (2017)
Projected traffic239,857 by 2025
Trucks3%
Lanes on structure11
Traffic directionTwo-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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAI-H1 over Waiau Ic-Moanalua RD built?

It was built in 1970, making it 55 years old in 2025.

What condition is FAI-H1 over Waiau Ic-Moanalua RD 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 Waiau Ic-Moanalua RD carry?

About 202,900 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is FAI-H1 over Waiau Ic-Moanalua RD?

The structure is 244 ft (74.4 m) long with a longest span of 132 ft (40.2 m) and a deck 195 ft wide.

Who owns FAI-H1 over Waiau Ic-Moanalua RD?

It is owned by the State Highway Agency.