GC 4.02 LAYOUT 

  1. Prior to the commencement of construction, the Engineer and the Contractor will locate on-site those property bars, baselines and benchmarks which are necessary to delineate the Working Area and to layout the Work, all as shown on the Contract Drawings.

  2. The Contractor shall be responsible for the preservation of all property bars while the Work is in progress, except those property bars which must be removed to facilitate the Work. Any property bars disturbed, damaged or removed by the Contractor's operations shall be replaced under the supervision of an Ontario Land Surveyor, at no extra cost to the Corporation.

  3. The Contractor shall provide qualified personnel to layout and establish all lines and grades necessary for construction. The Contractor shall notify the Engineer of any layout work carried out, so that the same may be checked by the Engineer.

  4. The Contractor shall install and maintain substantial alignment markers and secondary benchmarks as may be required for the proper execution of the Work. The Contractor shall supply one copy of the alignment and grade sheets to the Engineer.

  5. The Contractor shall assume full responsibility for alignment, elevations and dimensions of each of all parts of the Work, regardless of whether the Contractor's layout work has been checked by the Engineer.

  6. All stakes, marks and reference points provided by the Engineer shall be carefully preserved by the Contractor. In the case of their destruction or removal, such stakes, marks and reference points will be replaced by the Contractor at no extra cost to the Corporation. 

GC 4.03 TRAFFIC CONTROL REQUIREMENTS 

  1. The Contractor shall provide a minimum of two lanes of traffic at all times and shall not close the highway unless permitted by the Engineer. With the approval of the Engineer, the Contractor will be permitted to reduce the two lanes to a single 14-foot lane in isolated areas or will be allowed total closure of the highway. When single lane traffic is allowed, the Contractor shall provide competent flagmen at each limit of the restriction. When total closure and detouring is permitted the Contractor shall advise the Traffic Engineering, Fire and Police Departments of the City of Windsor as to the character, duration, etc. of the said detour and comply with their requirements.