US Bridges

N King ST over Kapalama Canal

Fair

Honolulu County, Hawaii · Int/Kokea St/N King ST · Structure no. 003062081400134

Built
1938
87 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
101 ft
4 main spans
Daily traffic
13,107
1998 count
Owner
County
County Highway Agency

About this bridge

N King ST over Kapalama Canal is a concrete continuous tee beam carrying N King ST over Kapalama Canal in Honolulu County, Hawaii. It was built in 1938, so it is 87 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 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 13,107 vehicles a day, projected to reach 16,384 by 2025. The structure is 101 ft (30.8 m) long and 87 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesN King ST
CrossesKapalama Canal
LocationInt/Kokea St/N King ST
RouteCity Street 7402
CountyHonolulu County
StateHawaii
Coordinates21.325, -157.86889
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length101 ft (30.8 m)
Longest span25 ft (7.6 m)
Deck width87 ft (26.4 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,107 (1998)
Projected traffic16,384 by 2025
Trucks0%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was N King ST over Kapalama Canal built?

It was built in 1938, making it 87 years old in 2025.

What condition is N King ST over Kapalama Canal 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 August 2024.

How much traffic does N King ST over Kapalama Canal carry?

About 13,107 vehicles per day (1998 count).

How long is N King ST over Kapalama Canal?

The structure is 101 ft (30.8 m) long with a longest span of 25 ft (7.6 m) and a deck 87 ft wide.

Who owns N King ST over Kapalama Canal?

It is owned by the County Highway Agency.