US Bridges

Kam HWY over Dbl 12X10 Rcb

Fair

Honolulu County, Hawaii · 0.17MI Nw/Pali Gc Acc RD · Structure no. 003000830304369

Built
1933
92 years old, rebuilt 1956
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
38,300
2017 count
Owner
State
State Highway Agency

About this bridge

Kam HWY over Dbl 12X10 Rcb is a concrete continuous culvert carrying Kam HWY over Dbl 12X10 Rcb in Honolulu County, Hawaii. It was built in 1933 and reconstructed in 1956, so it is 92 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 38,300 vehicles a day, roughly 2% of them trucks, projected to reach 39,220 by 2025. The structure is 26 ft (7.9 m) long and 103 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKam HWY
CrossesDbl 12X10 Rcb
Location0.17MI Nw/Pali Gc Acc RD
RouteU.S. Route 83
StateHawaii
Coordinates21.37886, -157.78461
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating43 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width103 ft (31.4 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,300 (2017)
Projected traffic39,220 by 2025
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam HWY over Dbl 12X10 Rcb built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1956.

What condition is Kam HWY over Dbl 12X10 Rcb 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 Dbl 12X10 Rcb carry?

About 38,300 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Kam HWY over Dbl 12X10 Rcb?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 103 ft wide.

Who owns Kam HWY over Dbl 12X10 Rcb?

It is owned by the State Highway Agency.