US Bridges

Nimitz HWY N-Pi over Ramp/Hickam R-N-Pi

Good

Honolulu County, Hawaii · Inters/Ramp N-Pi/R-Hi · Structure no. 003000920400013

Built
1979
46 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
733 ft
6 main spans
Daily traffic
16,200
2017 count
Owner
State
State Highway Agency

About this bridge

Nimitz HWY N-Pi over Ramp/Hickam R-N-Pi is a prestressed concrete continuous box beam or girders - multiple carrying Nimitz HWY N-Pi over Ramp/Hickam R-N-Pi in Honolulu County, Hawaii. It was built in 1979, so it is 46 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 16,200 vehicles a day, roughly 5% of them trucks, projected to reach 45,291 by 2025. The structure is 733 ft (223.4 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNimitz HWY N-Pi
CrossesRamp/Hickam R-N-Pi
LocationInters/Ramp N-Pi/R-Hi
RouteU.S. Route 92
StateHawaii
Coordinates21.34435, -157.94084
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length733 ft (223.4 m)
Longest span126 ft (38.4 m)
Deck width53 ft (16.3 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,200 (2017)
Projected traffic45,291 by 2025
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Nimitz HWY N-Pi over Ramp/Hickam R-N-Pi built?

It was built in 1979, making it 46 years old in 2025.

What condition is Nimitz HWY N-Pi over Ramp/Hickam R-N-Pi 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 July 2023.

How much traffic does Nimitz HWY N-Pi over Ramp/Hickam R-N-Pi carry?

About 16,200 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Nimitz HWY N-Pi over Ramp/Hickam R-N-Pi?

The structure is 733 ft (223.4 m) long with a longest span of 126 ft (38.4 m) and a deck 53 ft wide.

Who owns Nimitz HWY N-Pi over Ramp/Hickam R-N-Pi?

It is owned by the State Highway Agency.