US Bridges

Plantation DR over FAI-H1 Up-Ph Int #1

Fair

Honolulu County, Hawaii · 1.31MI S/Hic Struct #8 · Structure no. 003000H11201485

Built
1974
51 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
240 ft
2 main spans
Daily traffic
17,420
1999 count
Owner
State
State Highway Agency

About this bridge

Plantation DR over FAI-H1 Up-Ph Int #1 is a prestressed concrete continuous box beam or girders - multiple carrying Plantation DR over FAI-H1 Up-Ph Int #1 in Honolulu County, Hawaii. It was built in 1974, so it is 51 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 17,420 vehicles a day, projected to reach 21,775 by 2025. The structure is 240 ft (73.2 m) long and 82 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPlantation DR
CrossesFAI-H1 Up-Ph Int #1
Location1.31MI S/Hic Struct #8
RouteCity Street 7351
CountyHonolulu County
StateHawaii
Coordinates21.35214, -157.93266
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span125 ft (38.1 m)
Deck width82 ft (24.9 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,420 (1999)
Projected traffic21,775 by 2025
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Plantation DR over FAI-H1 Up-Ph Int #1 built?

It was built in 1974, making it 51 years old in 2025.

What condition is Plantation DR over FAI-H1 Up-Ph Int #1 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 Plantation DR over FAI-H1 Up-Ph Int #1 carry?

About 17,420 vehicles per day (1999 count).

How long is Plantation DR over FAI-H1 Up-Ph Int #1?

The structure is 240 ft (73.2 m) long with a longest span of 125 ft (38.1 m) and a deck 82 ft wide.

Who owns Plantation DR over FAI-H1 Up-Ph Int #1?

It is owned by the State Highway Agency.