a. No street in the City shall be cut by a contractor, developer or utility company within 5 years of construction, reconstruction or overlay unless approved by the Director.
b. Pavement less than 5 years old. In the event that the City allows a street to be cut within the 5 year time limit outlined herein, the trench in AC pavement streets shall be restored as follows:
1) Unless otherwise approved in writing, the trench shall be backfilled above the pipe zone with a Controlled Low Strength Material (CLSM) backfill (with an unconfined compressive strength less than 200 psi) as approved by the Director. The mix design shall be submitted to the City and approved prior to cutting the street.
2) The trench edges shall be over-cut square and straight to a minimum width of 6-inches from each edge of the trench following completion of the backfill and prior to the final patch work.
3) An asphalt wearing course of Class B mix shall be placed in two lifts to a minimum compacted depth of 4-inches or the depth of the existing pavement, whichever is greater.
4) After the trench cut is plugged as noted above, the street shall be repaved with an overlay or an inlay based on the minimum requirements summarized below, and as approved by the Director.
a) The overlay shall cover the cut area to a minimum compacted depth of 2-inches and extend a minimum of 50 feet beyond the cut area in each direction along the street. Unless otherwise approved by the Director, the overlay shall encompass the entire paved width of the street. A 2-inch deep edge grind shall be provided along all gutter or curblines to allow the new pavement to match gutter or curb grades and at each end to allow the new pavement to match existing pavement grade. Edge grinds shall be tapered to allow the full overlay depth at all locations. Butt grinds at the end of overlays shall be a minimum of 25 feet in length.
b) As an alternate to a full width overlay, a grind and inlay may be provided as follows. The grind & inlay shall be 2-inch minimum, or half the pavement depth, whichever is greater (3" maximum). Unless otherwise approved by the Director, the grind & inlay shall extend a minimum of 15 feet in each direction (parallel with curbline) beyond any trench cut, and all inlays shall extend a minimum of 5 feet (perpendicular to curb) beyond any trench cut limits, with pavement limits extended as required to ensure that pavement joints do not fall in a wheel track. If the minimum inlay limits extend beyond the street centerline, it is to encompass the entire street width.
5) The overlay or inlay shall meet all requirements as outlined in PWDS 2.13, Overlays. A strip of Petrotac fabric shall be installed over all trench patch joints.
If this work is performed by a private party, a maintenance bond for the cost of the original construction and repair shall be posted with the City stating that the party shall be responsible for the condition of said pavement patches for a period of two (2) years, and during that time shall repair to the City's satisfaction any of the patches which become settled, cracked, broken or otherwise faulty."
c. Unless otherwise approved in writing by the Director, sawcuts or trenches within arterial or collector streets shall meet same requirements (above) as for cutting new streets.
d. Street cuts in PCC concrete streets shall be restored as required by the Director.
e. All trench cuts or widening of existing paved streets (those which do not meet the overlay/inlay requirements above) shall be include a bench grind along the joint between the new AC and existing AC per City standard details (to avoid a full depth joint), unless otherwise specifically approved by the Director for driveway cuts, private street cuts or streets where public streets existing asphalt is inadequate to support the bench grind.