US Bridges

Kam HWY over Heeia Strm

FairPosted for load

Honolulu County, Hawaii · 0.39MI S/Ulumau Village · Structure no. 003008360800242

Built
1921
104 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete Continuous
Length
892 ft
52 main spans
Daily traffic
4,850
1981 count
Owner
County
County Highway Agency

About this bridge

Kam HWY over Heeia Strm is a concrete continuous tee beam carrying Kam HWY over Heeia Strm in Honolulu County, Hawaii. It was built in 1921, so it is 104 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. Its operating status is: posted for load restriction.

It carries about 4,850 vehicles a day, projected to reach 6,063 by 2025. The structure is 892 ft (271.9 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesKam HWY
CrossesHeeia Strm
Location0.39MI S/Ulumau Village
RouteCity Street 6541
CountyHonolulu County
StateHawaii
Coordinates21.43658, -157.81144
Functional classUrban Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans52
Design loadUnknown
Structure length892 ft (271.9 m)
Longest span17 ft (5.2 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,850 (1981)
Projected traffic6,063 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$6.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam HWY over Heeia Strm built?

It was built in 1921, making it 104 years old in 2025.

What condition is Kam HWY over Heeia Strm 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 2023.

How much traffic does Kam HWY over Heeia Strm carry?

About 4,850 vehicles per day (1981 count).

How long is Kam HWY over Heeia Strm?

The structure is 892 ft (271.9 m) long with a longest span of 17 ft (5.2 m) and a deck 25 ft wide.

Who owns Kam HWY over Heeia Strm?

It is owned by the County Highway Agency.