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Section 26 – Cold Plane Asphalt Concrete Pavement

smooth riding surface. Temporary asphalt concrete tapers and all loose material from the

underlying surface shall be completely removed before placing the permanent surfacing.

At the beginning and ending limits of the planing work, a planed pavement conform shall be

constructed as specified in Section 26-4, “Planed Pavement Conforms”, in this Section of these

26-3 PAVEMENT PLANING

Pavement planing shall consist of cold planing a continuous width of asphalt concrete

pavement, to the limits shown or specified in the Contract. The depth of planing below gutter

lips shall equal the specified thickness of asphalt concrete overlay as shown or specified in the

Contract. The depth of planing at the street centerline shall equal the specified thickness of

asphalt concrete to be placed on the street, and shall slope smoothly from the lip of gutter to the

Planed widths of pavement shall be continuous except for special treatment at traffic signal

detector loops and at manhole rims as shown or specified in the Contract or as directed by the

Agency. In areas where full width planing is not possible because of traffic signal detector

loops, separation shall be maintained from traffic signal detector saw cuts and loops. Pavement

planing shall be to within one foot (1’) horizontally of manhole rim on all sides, unless width of

grinding falls below five feet (5’) wide. The planing may be omitted in the areas where a less

than five-foot (5’) width can be obtained.

At cross streets with traffic signals, the planing shall be carried around the corner to the

center crosswalk and limit line of the adjacent intersection, unless otherwise directed by the

At cross streets without traffic signals, the planing shall be carried around the corner to the

mid-point of the curb radius of the adjacent side street, unless otherwise directed by the

At the end of each Working Day there shall not be any elevation difference between planed

and unplaned pavement in the traveled vehicle lanes. Any differences that parallel the

centerline of the street shall be sloped by either temporary asphalt concrete tapers or additional

planing to produce a bevel within the planed pavement. The slope of either the temporary

asphalt concrete tapers or the bevel shall not be greater than one inch (1”) vertical in twelve

inches (12”) horizontal. When temporary asphalt concrete tapers are used, asphalt concrete for

tapers shall be commercial quality and may be spread and compacted by any method that will

produce a smooth riding surface. Temporary asphalt concrete tapers and all loose material

from the underlying surface shall be completely removed before placing the permanent

surfacing. Elevation differences between planed pavement and lips of gutters are not required

Elevation differences perpendicular to the centerline of the street or elevation differences

between the planed street and cross-streets shall be lessened with temporary asphalt concrete

tapers, as specified above. Temporary asphalt concrete tapers and all loose material from the

underlying surface shall be completely removed before placing the permanent surfacing.

At the limits of the planing work, a planed pavement conform shall be constructed as

specified in Section 26-4, “Planed Pavement Conforms”, in this Section of these Specifications,

or as directed by Agency.

Contractor shall provide a means for temporary lane delineation, including centerline

(yellow) and lane lines (white), between the time of planing operations and roadway paving, as

specified in Section 6-13, “Public Safety and Traffic Control”, of these Specifications.