Laserfiche WebLink
6 EVALUATION — Surface Deformation <br /> Heavy traffic has shoved pavement <br /> Distortion V into washboard ripples and bumps. <br /> Shoving or rippling is surfacing <br /> material displaced crossways to the <br /> direction of traffic. It can develop <br /> into washboarding as when the halt <br /> p <br /> ° F <br /> mixture is unstable because of poor _ _ <br /> quality aggregate or improper mix <br /> design. Repair by milling smooth and <br /> overlaying with stable asphalt mix. <br /> Other pavement distortions may be <br /> caused by settling, frost heave, etc. <br /> Patching may provide temporary <br /> repair. Permanent correction usually _ <br /> involves removal of unsuitable _. <br /> subgrade material and reconstruction. <br /> IL <br /> IN <br /> ® . <br /> Severe settling <br /> .- T <br /> s <br /> from utility .. • ,. x �'..A f <br /> trench. .-�. ; �� ,•-� - ��, . , <br /> • .j <br /> v <br /> 1 <br /> . .; <br /> .. - _ <br /> % <br /> 1 ti T • - .11• - - <br /> 1 <br /> 77 <br /> `• <br /> uR. <br /> Frost heave L <br /> damage from A. a .- <br /> spring break-up '- . • ��_' <br />