Design, fabrication, and installation of one 24.4m (80ft) self - support radar towers at Robin Hood Bay, NL

ADDENDUM NO.3 - Extension to Bid Closing Date Questions/Answers Amendment No.2

The work covered under this project consists of all labour materials and equipment to facilitate the design, fabrication and installation of one 24.4m self-support towers. The work also covers the installation of one tower at a proposed location at the Robin Hood Bay CCG site to the full extent of specifications and drawings for the Canadian Coast Guard.

.1The design, fabrication, and installation of one 24.4m self-support tower at Robin Hood Bay as indicated in the technical specification and more particularly, specified herein.

.2The Contractor is responsible for the transportation of the tower and all materials and equipment to the Robin Hood Bay site (loading and unloading).

.3Engineering design, fabrication and installation of a 24.4m self-support tower structure for Robin Hood Bay, NL as per site specific environmental and loading conditions including, foundations, waveguide bridge, grounding systems, lighting systems, ice shields, antenna mount(s) and antenna/tower interface components and all other material required to meet the terms of this contract.

.4The tower design shall also incorporate a stairway that leads to a working platform at the top of the tower. Each section of stairs shall be equipped with approved hand railing.

.5The contractor is responsible for the testing of all systems in presence of Coast Guard personnel and a report of the testing results to be delivered to owner no later than ten (10) working days after completion of all the testing. Testing shall include but not be limited to:

·Welding

·Painting

·Concrete

·Rock Bolts (if applicable)

·Transmission Lines

.6Documentation on the system and subsystem is to be provided by the contractor. This shall include but not limited to:

·Complete set of detailed drawings.

·A complete maintenance manual indicating required maintenance for all installed components, schedule and parts list.

·A complete report on all system testing.

.7The work included in this contract is specified in the format of technical specification document. The contractor remains responsible for the appropriation of the work between the trade, contractors, his own forces and suppliers. The Engineer will not be responsible for determination of or for providing opinion on the scope of work split between sub-contractors and trade jurisdictions.