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LIMITED ENERGY


NEWSWIRE

COLLISYS IS ELECTRICAL CONTRACTOR FOR
HIAWATHA LIGHT RAIL TRANSIT PROJECT

As part of the Minnesota Transit Constructors (MNTC) team, ColliSys is a major electrical contractor for the $675 million Hiawatha Avenue Light Rail Line, one of the largest commercial construction projects ever undertaken in the Twin Cities Metropolitan area. The 11.6 mile Hiawatha Line will move travelers to four of Minnesota's most popular destinations: downtown Minneapolis, the Metrodome, the Minneapolis/St. Paul Airport and the Mall of America. Service will begin April 2004 between downtown Minneapolis and Fort Snelling and will be extended through the airport and to the Mall of America in late 2004.

  • ColliSys began working on the project in June of 2000; electrical construction began in March 2001; completion of the final station is expected by fall of 2004.
  • ColliSys is furnishing, installing, and commissioning 16 electrical substations ranging from 1500 to 2500 kw. These substations will convert 13,800 volts ac to 750 volts dc, which is the operating voltage for the trains.
  • ColliSys is installing 11 miles of duct banks, consisting of over 1 million feet of conduit. The purpose of the duct bank is for power, communications and to control the light rail transit system.
  • We are also handling installation or modification of 34 traffic signal systems for automobiles. The traffic signals are interfaced with the train signaling system to provide continuous operation of the trains.
  • ColliSys is relocating all public electric utilities throughout the light rail corridor.
  • ColliSys completed the electrical construction of the 150,000 square foot maintenance facility consisting of offices, maintenance area and train storage. Housed in this facility is the rail command center, controlling the operation of the entire light rail system.

Hiawatha Light Rail General Facts

  • About 22 to 26 light rail vehicles (LRVs) will operate 20 hours per day on the Hiawatha Line. Trains will run every 7 1/2 minutes during rush hours with connecting bus service and timed transfers.
  • Home base for the LRVs is the maintenance facility built on a former rail yard in the Minneapolis neighborhood. The maintenance shop includes a giant car wash where the vehicles will be cleaned each day. Ten sets of track (six maintenance bays and four storage bays) will carry the LRVs in and out of the Maintenance Facility every day.
  • The Hiawatha LRT Line is the first leg of what planners hope will be a rail and bus system with transit links as far as St. Cloud to the north and Hastings to the south, west to Eden Prairie and east to White Bear Lake.
  • Less than two years after ground was broken on January 17, 2001, the Hiawatha Light Rail project is 55 percent complete as of November, 2002.
  • A 500-ton, two story high boring machine is being used to build two tunnels at the Minneapolis/St. Paul International Airport that will carry northbound and southbound trains. Each tunnel is 1.4 miles long.
  • MAC is constructing 2 stations at the Minneapolis/St. Paul International Airport. One is located above ground at the Humphrey terminal. The other station at the Lindbergh terminal is 7 stories beneath the surface, and more than 500 feet long.
  • To reduce noise, rails are being welded together into segments of more than a quarter-mile long. Workers with grinders smooth the welded joints. The rails are secured to concrete ties weighing 634 pounds each. They are expected to last 75 years - double the life of timber.