If the sidewalk is adjoining curb, the construction
joints shall be placed every five feet, and the joints shall match
with the curb joints. An expansion joint of 1/2 inch shall be constructed
every 20 feet, and three intermediate contraction joints shall be
constructed between each expansion joint. Expansion joints shall be
filled with preformed bituminous impregnated fiber joint filler, complying
with Type III filler in AASHTO Spec M-153 and recessed 1/4 inch from
the top of the sidewalk. Sidewalks shall be constructed of NJDOT Class
B concrete.