Drumore, PA Exelon Energy Muddy Run 24″ Unwatering Header Replacement

Details

  • 4 man Crew: 1 – SF GF / 2 – SFW / 1 – SF
  • Original Scope was to replace all piping from the block valves at the pumps up to the 2nd floor making the final tie in at the existing 24” elbow
  • Original Work Schedule was 6 weeks with a 6 x 10 schedule. The client requested us to modify the work scope to 5 weeks on a 5 x 10 schedule
  • All work was completed on time according to the client’s new schedule without any incidents.
  • Original Planned Man Hours: 1935
  • Project Completion Man Hours: 1010

Challenges & Barriers

  • Low head room to hang proper rigging. Brand Scaffolding was able to build scaffolding rated for rigging to assist with varies points to hang chain blocks.
  • Removing old piping from the basement and 1st floor using the Gantry Crane to lift through the designated shaft to the outside hard deck.
  • Lowering new piping from the outside hard deck into the basement and 1st floor using the Gantry Crane.
  • All was done successfully without incident.

Work Completed

  • Demo all old piping and valves along with disposal.
  • Fabricated all new piping on site and install.
  • Welds:
    • 14 – 24” welds
    • 10 – 16” welds
    • 1 – 12” weld
    • 6 – 4” welds
    • 5 – 6” welds
    • Several miscellaneous small bore welds 2” and under
  • Valves:
    • 1 – 16” 150# Check Valve
    • 1 – 16” 150# Gate Valve
    • 1 – 24” 150# Gate Valve
    • 1 – 6” 150# Gate Valve
    • 1 – 4” 150# Gate Valve