US Bridges

Ramp Ea over Ramp Iw-B Camp Catlin RD

Fair

Honolulu County, Hawaii · Hnl Exit from H1 WB · Structure no. 003H1WB11460015

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
2,464 ft
27 main spans
Daily traffic
8,300
2020 count
Owner
State
State Highway Agency

About this bridge

Ramp Ea over Ramp Iw-B Camp Catlin RD is a concrete continuous box beam or girders - single or spread carrying Ramp Ea over Ramp Iw-B Camp Catlin RD in Honolulu County, Hawaii. It was built in 1980, so it is 45 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 5 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 8,300 vehicles a day, roughly 2% of them trucks, projected to reach 11,952 by 2042. The structure is 2,464 ft (751 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRamp Ea
CrossesRamp Iw-B Camp Catlin RD
LocationHnl Exit from H1 WB
RouteInterstate 0H1
CountyHonolulu County
StateHawaii
Coordinates21.33719, -157.91231
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 rating36 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans27
Design loadHS 20
Structure length2,464 ft (751 m)
Longest span128 ft (38.9 m)
Deck width31 ft (9.3 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deck19 ft (5.8 m)

Traffic and service

Average daily traffic8,300 (2020)
Projected traffic11,952 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp Ea over Ramp Iw-B Camp Catlin RD built?

It was built in 1980, making it 45 years old in 2025.

What condition is Ramp Ea over Ramp Iw-B Camp Catlin 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 October 2024.

How much traffic does Ramp Ea over Ramp Iw-B Camp Catlin RD carry?

About 8,300 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Ramp Ea over Ramp Iw-B Camp Catlin RD?

The structure is 2,464 ft (751 m) long with a longest span of 128 ft (38.9 m) and a deck 31 ft wide.

Who owns Ramp Ea over Ramp Iw-B Camp Catlin RD?

It is owned by the State Highway Agency.