US Bridges

Nimitz HWY over Slip Cover #1 Hon Hbr

Fair

Honolulu County, Hawaii · 0.11MI E/Awa ST · Structure no. 003000920400592

Built
1952
73 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
200 ft
10 main spans
Daily traffic
57,600
2017 count
Owner
State
State Highway Agency

About this bridge

Nimitz HWY over Slip Cover #1 Hon Hbr is a concrete continuous slab carrying Nimitz HWY over Slip Cover #1 Hon Hbr in Honolulu County, Hawaii. It was built in 1952, so it is 73 years old, older 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 57,600 vehicles a day, roughly 5% of them trucks, projected to reach 99,870 by 2025. The structure is 200 ft (61 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNimitz HWY
CrossesSlip Cover #1 Hon Hbr
Location0.11MI E/Awa ST
RouteU.S. Route 92
CountyHonolulu County
StateHawaii
Coordinates21.31277, -157.86531
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length200 ft (61 m)
Longest span20 ft (6.1 m)
Deck width59 ft (18 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,600 (2017)
Projected traffic99,870 by 2025
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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$5.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Nimitz HWY over Slip Cover #1 Hon Hbr built?

It was built in 1952, making it 73 years old in 2025.

What condition is Nimitz HWY over Slip Cover #1 Hon Hbr 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 January 2024.

How much traffic does Nimitz HWY over Slip Cover #1 Hon Hbr carry?

About 57,600 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Nimitz HWY over Slip Cover #1 Hon Hbr?

The structure is 200 ft (61 m) long with a longest span of 20 ft (6.1 m) and a deck 59 ft wide.

Who owns Nimitz HWY over Slip Cover #1 Hon Hbr?

It is owned by the State Highway Agency.