US Bridges

Kal HWY over Kuapa Pd-Hi Kai Mariner

Fair

Honolulu County, Hawaii · 0.25MI Nw/Portlock RD · Structure no. 003074001400490

Built
1969
56 years old
Condition
Fair
inspected September 2024
Type
Slab
Prestressed Concrete
Length
250 ft
6 main spans
Daily traffic
35,500
2017 count
Owner
State
State Highway Agency

About this bridge

Kal HWY over Kuapa Pd-Hi Kai Mariner is a prestressed concrete slab carrying Kal HWY over Kuapa Pd-Hi Kai Mariner in Honolulu County, Hawaii. It was built in 1969, so it is 56 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 35,500 vehicles a day, roughly 2% of them trucks, projected to reach 35,949 by 2025. The structure is 250 ft (76.2 m) long and 54 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesKal HWY
CrossesKuapa Pd-Hi Kai Mariner
Location0.25MI Nw/Portlock RD
RouteU.S. Route 72
CountyHonolulu County
StateHawaii
Coordinates21.28135, -157.71154
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length250 ft (76.2 m)
Longest span50 ft (15.2 m)
Deck width54 ft (16.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,500 (2017)
Projected traffic35,949 by 2025
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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$1.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Kal HWY over Kuapa Pd-Hi Kai Mariner built?

It was built in 1969, making it 56 years old in 2025.

What condition is Kal HWY over Kuapa Pd-Hi Kai Mariner 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 September 2024.

How much traffic does Kal HWY over Kuapa Pd-Hi Kai Mariner carry?

About 35,500 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Kal HWY over Kuapa Pd-Hi Kai Mariner?

The structure is 250 ft (76.2 m) long with a longest span of 50 ft (15.2 m) and a deck 54 ft wide.

Who owns Kal HWY over Kuapa Pd-Hi Kai Mariner?

It is owned by the State Highway Agency.