US Bridges

Kam HWY over Keaahala Strm

FairPosted for load

Honolulu County, Hawaii · 0.02MI W/Pahia RD · Structure no. 003083601400098

Built
1918
107 years old, rebuilt 1937
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
25 ft
1 main span
Daily traffic
38,996
1986 count
Owner
County
County Highway Agency

About this bridge

Kam HWY over Keaahala Strm is a concrete tee beam carrying Kam HWY over Keaahala Strm in Honolulu County, Hawaii. It was built in 1918 and reconstructed in 1937, so it is 107 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. Its operating status is: posted for load restriction.

It carries about 38,996 vehicles a day, projected to reach 48,745 by 2025. The structure is 25 ft (7.6 m) long and 70 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKam HWY
CrossesKeaahala Strm
Location0.02MI W/Pahia RD
RouteCity Street 6510
StateHawaii
Coordinates21.41688, -157.80143
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span22 ft (6.7 m)
Deck width70 ft (21.4 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,996 (1986)
Projected traffic48,745 by 2025
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$371,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam HWY over Keaahala Strm built?

It was built in 1918, making it 107 years old in 2025. It was reconstructed in 1937.

What condition is Kam HWY over Keaahala 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 Keaahala Strm carry?

About 38,996 vehicles per day (1986 count).

How long is Kam HWY over Keaahala Strm?

The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.7 m) and a deck 70 ft wide.

Who owns Kam HWY over Keaahala Strm?

It is owned by the County Highway Agency.