US Bridges

Kam HWY over Kaalaea Strm

Fair

Honolulu County, Hawaii · 0.01MI S/Kaalaea ST · Structure no. 003000830303575

Built
1923
102 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
41 ft
2 main spans
Daily traffic
16,500
2017 count
Owner
State
State Highway Agency

About this bridge

Kam HWY over Kaalaea Strm is a concrete continuous slab carrying Kam HWY over Kaalaea Strm in Honolulu County, Hawaii. It was built in 1923, so it is 102 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 16,500 vehicles a day, roughly 5% of them trucks, projected to reach 18,799 by 2025. The structure is 41 ft (12.5 m) long and 26 ft wide. If it were closed, the detour would be 65.9 mi (106 km).

Location

Open in Google Maps
CarriesKam HWY
CrossesKaalaea Strm
Location0.01MI S/Kaalaea ST
RouteU.S. Route 83
CountyHonolulu County
StateHawaii
Coordinates21.46648, -157.84359
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span19 ft (5.8 m)
Deck width26 ft (8 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,500 (2017)
Projected traffic18,799 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed65.9 mi (106 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$512,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam HWY over Kaalaea Strm built?

It was built in 1923, making it 102 years old in 2025.

What condition is Kam HWY over Kaalaea 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 June 2024.

How much traffic does Kam HWY over Kaalaea Strm carry?

About 16,500 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Kam HWY over Kaalaea Strm?

The structure is 41 ft (12.5 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns Kam HWY over Kaalaea Strm?

It is owned by the State Highway Agency.