US Bridges

Kam HWY over Farr Hwy-Waiawa Ic #10B

Fair

Honolulu County, Hawaii · 0.08MI S/Ramp D-1 · Structure no. 003000990401725

Built
1969
56 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
185 ft
2 main spans
Daily traffic
13,700
2017 count
Owner
State
State Highway Agency

About this bridge

Kam HWY over Farr Hwy-Waiawa Ic #10B is a prestressed concrete stringer/multi-beam or girder carrying Kam HWY over Farr Hwy-Waiawa Ic #10B in Honolulu County, Hawaii. It was built in 1969, so it is 56 years old, younger 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 13,700 vehicles a day, roughly 2% of them trucks, projected to reach 50,323 by 2025. The structure is 185 ft (56.4 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKam HWY
CrossesFarr Hwy-Waiawa Ic #10B
Location0.08MI S/Ramp D-1
RouteU.S. Route 99
CountyHonolulu County
StateHawaii
Coordinates21.394, -157.98975
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.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating62.5 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length185 ft (56.4 m)
Longest span90 ft (27.4 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,700 (2017)
Projected traffic50,323 by 2025
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$911,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Kam HWY over Farr Hwy-Waiawa Ic #10B built?

It was built in 1969, making it 56 years old in 2025.

What condition is Kam HWY over Farr Hwy-Waiawa Ic #10B 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 December 2024.

How much traffic does Kam HWY over Farr Hwy-Waiawa Ic #10B carry?

About 13,700 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Kam HWY over Farr Hwy-Waiawa Ic #10B?

The structure is 185 ft (56.4 m) long with a longest span of 90 ft (27.4 m) and a deck 36 ft wide.

Who owns Kam HWY over Farr Hwy-Waiawa Ic #10B?

It is owned by the State Highway Agency.