US Bridges

FAI-H1(O.B.) over Ramp Mn En-Ph Int #5

Fair

Honolulu County, Hawaii · 0.65MI S/Plt DR Sep · Structure no. 003000H10201550

Built
1974
51 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
96 ft
1 main span
Daily traffic
124,400
2017 count
Owner
State
State Highway Agency

About this bridge

FAI-H1(O.B.) over Ramp Mn En-Ph Int #5 is a prestressed concrete continuous box beam or girders - multiple carrying FAI-H1(O.B.) over Ramp Mn En-Ph Int #5 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 124,400 vehicles a day, roughly 4% of them trucks, projected to reach 166,683 by 2025. The structure is 96 ft (29.3 m) long and 138 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAI-H1(O.B.)
CrossesRamp Mn En-Ph Int #5
Location0.65MI S/Plt DR Sep
RouteInterstate 0H1
CountyHonolulu County
StateHawaii
Coordinates21.3429, -157.93207
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span87 ft (26.5 m)
Deck width138 ft (42.1 m)
Roadway width95 ft (29.1 m)
Vertical clearance over deck23 ft (7.2 m)

Traffic and service

Average daily traffic124,400 (2017)
Projected traffic166,683 by 2025
Trucks4%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAI-H1(O.B.) over Ramp Mn En-Ph Int #5 built?

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

What condition is FAI-H1(O.B.) over Ramp Mn En-Ph Int #5 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 FAI-H1(O.B.) over Ramp Mn En-Ph Int #5 carry?

About 124,400 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is FAI-H1(O.B.) over Ramp Mn En-Ph Int #5?

The structure is 96 ft (29.3 m) long with a longest span of 87 ft (26.5 m) and a deck 138 ft wide.

Who owns FAI-H1(O.B.) over Ramp Mn En-Ph Int #5?

It is owned by the State Highway Agency.