Environmental Impact Assessment(EIA) Registration for the ...

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Boom Headpond Main Dam and Sluiceway Control Building Two Span Bridge Approximate Location of Coffer Dam Approximate North Upstream Chain Link Fence Rubber Dam Upstream Extension to Existing Wall Submerged Gate Forebay Spillway Dam Forebay v:\1218\active\121810326\draft_figures\nepisiquitdamphoto_wtempaccessroads_2 0100804 doc Photo Source: NB Power Downstream Power House NOTE: THIS DRAWING ILLUSTRATES SUPPORTING INFORMATION SPECIFIC TO A STANTEC PROJECT AND SHOULD NOT BE USED FOR OTHER PURPOSES Client: PROJECT OVERVIEW NEPISIGUIT FALLS GENERATING STATION UPGRADES New Brunswick Power Generation Corporation Scale: Date: n/a June 6, 2011 Fig. By: JLL Job No.: Appd. By: 121810326 SMW Figure No.: 2.1 Stantec Consulting Ltd. © 2010
REVISED PROJECT DESCRIPTION AND ENVIRONMENTAL IMPACT ASSESSMENT (EIA) REGISTRATION FOR THE NEPISIGUIT FALLS GENERATING STATION MODIFICATION AND REHABILITATION PROJECT • the installation of a new 1.2 m (3.9 ft) diameter, 85.3 m (280 ft) long rubber dam on the top of the spillway dam; • the replacement of the damaged trash racks and intake deck outside the power house building; • installation of post-tensioning anchors; • various ancillary works including the installation of a new chain link fence and gate and extension to the existing retaining wall at the north-end of the forebay, removal of the cooling water chambers and general maintenance on the fine trash racks and butterfly valves; and • the installation of various communications and electrical infrastructure. 2.1.2 Project Activities The Project consists of eight main activities, as follows: • installation of Coffer Dam; • installation of a work platform; • concrete demolition and surface repair; • post-tension upgrade by setting of rock anchors; • installation of the rubber dam; • replacement of the trash rack system and intake deck; • ancillary works; and • removal of the Coffer Dam and work platform. Each of these activities is further discussed below in Section 2.2 (Construction). 2.2 CONSTRUCTION Construction will begin after approvals under the provincial EIA and federal EA (if applicable) processes have been received, and following approval of the Project under the applicable provincial and federal acts and regulations. Provided these approvals are granted, site preparation and physical construction could begin as early as June, 2012. There are several stages to the construction process, as outlined below. There are several activities that will also take place once repairs to the NFGS are completed. These have been June 15, 2011 Page 13
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View of the Spillway Dam Showing Wo
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Client: New Brunswick Power Corpora
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Client: New Brunswick Power Corpora
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Scale: Job No.: Figure No.: Cross S
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Spillway Concrete Repair Works Plan
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Scale: Job No.: Drawing No.: Plan V
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Cross Section of the Rubber Dam Dra
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Scale: Job No.: Drawing No.: Plan V
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Brunswick PERMIT FOR WATERCOURSE AN
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DOCUMENT "A" Attached to ALT 31667'
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Environmental Impact Assessment(EIA) Registration for the ...

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