Change Order 2 Thomco Construction

Project: Shore Avenue Storm Water Outfall Improvements Project Change Order No.2 Change Order Effective Date: May 11, 2016 New Item #203—Asphalt Extruded Curb. This item pays for the new asphalt curb installed along Shore Avenue, as a result of the street reconstruction approach taken, given the excessive sloughing of existing soils during trench excavation. New Item #204—Cost for Second Changed Conditions Notice. Between Sound Avenue and 33rd Avenue West along Shore Avenue,the new storm trench followed alongside an existing 8-inch perforated French drainage trench system. This perforated French drain trench system was lined with plastic and backfilled with drain rock to a depth of 4-5 feet and at various locations, generally ran parallel to and either along the south side or north side of the new storm sewer trench pipe being installed by Thomco. The material would sloughed into contractors storm sewer trench line, at times requiring it to be removed and at other times just slowing the dragging of the trench box forward, in order to control the sloughing and loss of added roadway width during the pipe backfilling process. This cost is to reimburse the contractor for the added labor and equipment and dump fee costs caused by the existence of this unknown French drain system. New Item #205—Roadway Reconstruction Costs 33`d Ave. W to Sound Ave. The changed conditions encountered during pipe installation along Shore Avenue resulted in significant added width for trench patching and street restoration repairs. The City elected to have Shore Avenue restored from back of curb to back of curb. This cost pays for the removal and dump fees of the additional square yards of asphalt surfacing and existing asphalt curbing, the additional roadway excavation for a 7-inch thick roadway section comprising of 4-inches of crushed surfacing base course and 3-inches of HMA %2-inch PG 64-22, and the adjustment of various existing utility structures within the added foot print of the work. CONTRACT TIME: Fifteen, (15), additional working days are being added to the contract time as a result of this change order#2. Page 7 of 7