California Department of Transportation
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Roadside Management Toolbox

Treatment Beyond the gore Area (1)

Treatment Asphalt Concrete Stamped Asphalt Concrete Minor Concrete Pavement Patterned Concrete Pavement Rock Blanket
(Mortared Cobble)
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Information		 Asphalt Concrete Photo Photo of Stamped Asphalt Minor Concrete Photo of Patterened Concrete Photo of Rock Blanket
Area(s) of use Urban/Suburban Urban/Suburban Urban/Suburban Urban/Suburban Urban/Suburban
Est. Installed Cost $18 - $70/yd2 $40 - $55/yd2 $60 - $100/yd2 $100 - $125/yd2 $85 - $120/yd2
Constructability 7 6 4 4 3
Ease of Repair 6 4 4 4 5
Context adaptable Use in areas with a large amount of existing AC Variable color and texture, match to corridor. Variable color, match to corridor. Variable color/texture, match to corridor. Variable color / texture
Life Cycle (years) 6-10 8-10 20+ 15-20 15-20
Consult with Maint., L. Arch Maint., L. Arch Maint., L. Arch Maint., L. Arch Maint., Traffic, L. Arch
Comments Less effective for controlling weeds than portland cement concrete. Preferred placement behind curbs or with other edge restraints. Base design is important for correct load bearing capacity. Include soil sterilization under treatment. Proper structural section and preparation is necessary to prevent cracking and subsequent weed growth. Proper base design and preparation is necessary to prevent cracking and subsequent weed growth. Matching color and pattern for repairs is difficult. In gores or other traffic areas cobble "roughness" must be limited, see detail.
1. Design and treatment of areas beyond the gore shall comply with HDM Chapter 500, Topic 504.2 Freeway Entrances and Exits

Updated: Wednesday, May 24, 2012