Drumore, PA 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 2^nd 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 1^st 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 1^st 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