US Bridges

H3 Frwy over Service Road & Ramp

Good

Honolulu County, Hawaii · 30 SW 0F Kamooalii Strm · Structure no. 003000H30311410

Built
1988
37 years old
Condition
Good
inspected June 2024
Type
Culvert
Steel
Length
25 ft
2 main spans
Daily traffic
24,400
2017 count
Owner
State
State Highway Agency

About this bridge

H3 Frwy over Service Road & Ramp is a steel culvert carrying H3 Frwy over Service Road & Ramp in Honolulu County, Hawaii. It was built in 1988, so it is 37 years old, younger than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 24,400 vehicles a day, roughly 3% of them trucks, projected to reach 28,600 by 2025. The structure is 25 ft (7.6 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesH3 Frwy
CrossesService Road & Ramp
Location30 SW 0F Kamooalii Strm
RouteInterstate 0H3
CountyHonolulu County
StateHawaii
Coordinates21.38529, -157.79147
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,400 (2017)
Projected traffic28,600 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
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 H3 Frwy over Service Road & Ramp built?

It was built in 1988, making it 37 years old in 2025.

What condition is H3 Frwy over Service Road & Ramp in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does H3 Frwy over Service Road & Ramp carry?

About 24,400 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is H3 Frwy over Service Road & Ramp?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m) and a deck 40 ft wide.

Who owns H3 Frwy over Service Road & Ramp?

It is owned by the State Highway Agency.