O.P.S.D. provisions.

XIV. TOPSOIL, SEED AND MULCH

The Contractor shall be required to restore all existing grassed areas and drain side slopes damaged by the structure replacements, construction or cutting of the drain cross section, by placing topsoil, and then seed and mulch over said areas including any specific areas noted on the bridge details. The Contractor shall be required to provide all the material and to cover the above-mentioned surfaces with approximately 50mm of good, clean, dry topsoil on slopes and 100mm of good, clean, dry topsoil on horizontal surfaces, fine graded and spread in place ready for seeding and mulching. The placing and grading of any topsoil shall be carefully and meticulously carried out in accordance with Ontario Provincial Standard Specifications, Form 802 dated November 2010, or as subsequently amended, or as amended by these specifications and be readied for the seeding and mulching process. The seeding and mulching of all of the above-mentioned areas shall comply in all regards to Ontario Provincial Standard Specifications, Form 803 dated November 2010 and Form 804, dated November 2013, or as subsequently amended, or as amended by these specifications. The seeding mixture shall be the Standard Roadside Mix (Canada No. 1 Lawn Grass Seed Mixture) as set out in O.P.S.S. 804. All cleanup and restoration work shall be performed to the full satisfaction of the City Drainage Superintendent or Consulting Engineer.

When all of the work for this installation has been completed, the Contractor shall ensure that positive drainage is provided to all areas, and shall ensure that the site is left in a neat and workmanlike manner, all to the full satisfaction of the City Drainage Superintendent or Consulting Engineer.

XV. SPECIAL PROVISIONS FOR REPLACEMENT, REPAIR AND IMPROVEMENTS

Timing of work on the bridges shall be established in consultation with the property owners. The Contractor shall provide for the construction and improvements to the access bridges along the Cahill Drain – Upper Part, for the structures noted, as follows:

Bridge 2

The Contractor shall completely remove the existing west poured concrete sloped end wall protection and any other deleterious materials. The Contractor shall supply all equipment, material, and labour to install the precast concrete block on filter cloth wall on the west end of the bridge. The Contractor shall then install Granular “B” and “A” backfill as detailed in “Section IX Concrete Bridge Installation” in the specifications. The Contractor shall modify the existing traffic guide rail to provide for access to the gravel shoulder, install the pedestrian barricade handrail at the new block end wall in accordance with Ontario Provincial Standard Drawing (O.P.S.D.) 980.101, and extend the existing fence to abut to the new pedestrian barricade handrail as shown on the plans. The Contractor shall provide and install 1.0 metres of sloped quarried limestone on filter cloth end protection on the drain banks at the end of the new west vertical precast concrete block headwall. The gravel shoulder extension top width shall consist of Granular “A” material as called out on the plans. All work shall be carried out in accordance with these specifications, the plans in Appendix “REI-E”, and the requirements in Appendix “REI-C”.