Dates: March 31, 2009 to June 30, 2009.
Location: I-17 & Pulliam Road., Flagstaff, AZ
Contractor: Eagle Mountain Construction.
Description: 500′ of 36″ x .50 wall under I-17 for 20″ DIP waterline. Anticipated solid Limestone.
Challenges: Encountered veins of brown clay causing plugging issues for the SBU-A.
Method: Small Boring Unit (SBU)
Results: Completed project successfully on schedule.