Laserfiche WebLink
NORWEST 950 SOUTH CHERRY STREET,SUITE 800 <br /> DENVER,CO 80246 <br /> COR PORAT ION TEL: (303)782-0164 FAx: (303)782-2560 <br /> MEMORANDUM <br /> To: Colorado Department of Reclamation, Mining, and Safety Ref# 591-4 <br /> CC: Jerald Schnabel, Transit Mix Date: July 28,2016 <br /> From: Paul Kos <br /> Subject: Engineering Evaluation of Overhead Electric Distribution Lines <br /> Introduction <br /> Three segments of overhead electric distribution lines are existing structures located within 200 feet of the <br /> proposed Hitch Rack Ranch Quarry permit boundary. These locations are shown on Figure 1. This <br /> engineering evaluation discusses the structure locations and components before evaluating potential <br /> impacts quarry development could have on the structure and presenting what measures will be taken to <br /> minimize these impacts. <br /> Structure Description <br /> Overhead electric distribution lines exist within 200 feet of the proposed Hitch Rack Ranch Quarry permit <br /> boundary. These power lines are located along Highway 115 and along the access road, and none are <br /> located in the mining areas. The power line along Highway 115 includes a branch line that runs to Fort <br /> Carson,and this line is owned by Colorado Springs Utilities. The power line inside the Hitch Rack Ranch <br /> (RMBC Group,Inc.)property is owned by Black Hills Energy. Each overhead electric distribution line <br /> consists of elevated cables that transmit electricity. All of the powerlines are single phase lines that <br /> provide residential or local service. None are regional or triple phase transmission lines. <br /> Potential Impacts and Mitigation <br /> Potential Problem: Construction of the access road could damage the overhead electric distribution lines. <br /> Solution: Construction crews routinely work around utilities and have standard operating procedures for <br /> not impacting or damaging the utility lines. Activities and equipment with the highest risk of impacting a <br /> power line include those with potentially elevated components such as: cranes, drill rigs, excavators, and <br /> dump trucks. These procedures typically include signage on each side of the power line to remind <br /> operators of the hazard and using spotters if work is required near the power lines. Federal law requires at <br /> least 10 feet of clearance for voltages under 115,000 - the higher voltage the greater the distance. Transit <br /> Mix will ensure that these practices are followed when working near utility lines. Transit Mix will also <br /> work with Colorado Springs Utilities and Black Hills Energy to ensure that the construction occurs <br /> without impacting the overhead power lines. <br /> DENVER/CALGARY/VANCOUVER/SALT LAKE CITY/GRAND JUNCTION/CHARLESTON VVV/NEWCASTLE <br /> WWW.NORWESTCORP.COM <br />