Laserfiche WebLink
��� <br />� <br />REQUEST FOR COUNCIL ACTION <br />Date: April 13, 2015 <br />Item No.: 15.c <br />Department Approval City Manager Approval <br />r�. <br />Item Description: Discuss Pavement Maintenance Strategies <br />BACKGROUND <br />The City of Roseville, along with many other cities in the metro area and around Minnesota, are <br />experiencing an accelerated deterioration of the top layer of bituminous pavement. We call this <br />delamination (pictured below). There has been some research on this item in the past year that <br />may indicate that this added distress is related to an interaction between the top layer of the <br />pavement and the seal coat treatment we apply to our roadways. Previous response from <br />MnDOT researchers had been that it was related to poor field construction methods. Staff has <br />been discussing this problem for several years as it became apparent it was affecting many of our <br />roadways that were reconstructed in the late 80's and through the 90's. This issue first appears <br />approximately 15 years after the pavement was placed and becomes increasingly apparent in <br />subsequent years. <br />Staff will present information on this topic and recommend modification of our pavement <br />maintenance strategies in order to respond to this accelerated distress. <br />� - _"- <br />L �,.� ��,y� �� <br />' *� ��i�����i��yH` <br />�� . r-�.k�� <br />_ o� <br />_ _ _ 7�. . ' � <br />- - ',�.: - " � - . <br />.��+s � �, . . - _ � _ - <br />�_ �� �� _ _ --`* <br />�_.." <br />+ ,.� <br />1: . <br />1� <br />�—� ��,�,_,r� _ <br />r � <br />.J�"� .. ����� _ _,. <br />� . .�- <br />� <br />._ � <br />ty � . � <br />S� ' �_ ' , 1 ��" <br />' � .r..31.-_ <br />• y"r- . � , s. <br />-- - ':+ `� - a�--�� . <br />- . <br />'� `1� �,,,.'��' `�, �;- <br />'�,�ts _ � � : � � - <br />..�{y , . �� �. � . . . � � 3�n. <br />Page 1 of 2 <br />