178-25 Invoice.pdf

Following Day 1, Shauger began excavations to expose the damaged pipe, which included the construction of timber shoring trench protection. The excavation ultimately reached 26' deep throughout the excavation and included the presence of an 8-inch active gas main running through the trench. Extra timber shoring was installed with extra caution and reinforcement to protect and support the existing gas utility. The presence of the high pressure gas main created the need for significant hand work throughout the excavation process. Storm Pipe Replacement and Infrastructure Improvements Primary Trench Work: Upon exposing the damaged storm pipe, a 60-foot section was removed. The trench was then prepared for the installation of 160 linear feet (LF) of new 30-inch high-density polyethylene (HDPE) storm pipe, running from the manhole on Rooney Circle to the manhole located in the Cambria Hotel parking lot. A portion of the new storm line was bored and sleeved to allow safe crossing beneath existing infrastructure. The sleeved section was fully encased in flowable fill concrete mix to enhance structural integrity and prevent future subsidence or collapse. Once pipe installation was completed, Shauger backfilled the trench using certified Dense Graded Aggregate (DGA) material in 3-foot lifts. After backfilling to 8 inches below finished grade, the remaining timber shoring was removed, and the trench was paved with asphalt base course to match grade. Secondary Trench Work: An additional trench was excavated to access and remove a collapsed 12-inch storm main located between two catch basins. The failed section was replaced with new 18-inch HDPE storm pipe to increase capacity and improve system durability. The trench reached a depth of approximately 8 feet and was subsequently backfilled and paved with asphalt base course to finished grade. Conducted CCTV camera inspection and thorough cleaning of the entire stormwater main system within Rooney Circle following the repair work. Verified structural integrity and operational flow of all newly installed and existing storm lines. NOTES: SUBTOTAL: $442,710.63 EXTRA: $0.00 SUBTOTAL: $442,710.63 Plus 6.625% Sales Tax: $0.00 TOTAL INVOICE $442,710.63 PREPARED By: PATTY REVIEWED By: Matt v/, APPROVED By: Ll 4 UE YZ x