11/15/2022 (3) - Laserfiche WebLink

Home Browse Search

Retrospective Time Impact Analysis IRC -0853: SR -60 & 43RD AVE INTERSECTION IMPROVEMENTS (FM431759) 54" STORM PIPE -SOIL SETTLEMENT ISSUE IMPACTS Description of Delay Event After the project work began, the Contractor noted on several occasions that the 54" storm pipe running under the outside eastbound lane of SR 60 was in a state of disrepair that included leaking joints and cracks, allowing infiltration of groundwater and soil. The infiltration of surrounding soil was confirmed when the Contractor began removing sidewalk panels on eastbound SR 60 (contract work) and found significant voids under the sidewalk panels. The Contractor then cleaned and videotaped the inside of the pipe and provided a copy of the video to the Engineer to show the disrepair of the pipe. The Engineer provided copies of the videos to the County and the FDOT. When the Contractor found the voids, they stopped work on April 26, 2022, and submitted a notice of delay and intention to claim for additional costs. Subsequently, the FDOT engaged a consultant to perform ground penetrating radar (GPR) to determine the extent of the voids on April 27, 2022, with a report date of May 11, 2022. After much discussion between the FDOT and the County, an agreement was reached to perform urethane soil injection in the void areas found through the GPR process. A Work Change Directive (WCD) was issued to the Contractor for the performance of the soil injection. Because the impact to the project schedule was not known at the time the WCD was issued, the language of the WCD specifically excluded additional time or compensation for time related costs. After receipt of the WCD the Contractor engaged a subcontractor for the soil injection. Due to prior commitments, the subcontractor was not able to mobilize to the project until July 18, 2022. After mobilizing to the project, the subcontractor diligently pursued the soil injection and completed the work on July 27, 2022. The Contractor remobilized to the project and began productive work on August 2, 2022. ChronoloRv of Events - April 5, 2022, evening —TRC informed Consor of voids they encountered while removing the sidewalk in the area. - April 6 & 7, Consor informed Diego Velazquez by phone and Diego replied on April 7 with information on the repair that had been done earlier during the project (e-mail attached) - April 14, 2022 — Chloann and Diego meet with FDOT operations to discuss - April 25, 2022 — per Diego, Geoview is scheduled to perform GPR on Thursday April 28"', 2022 227