Title
Consider a resolution authorizing the Mayor to execute Supplemental Contract No. 3 with Halff Associates, Inc. for the RM 620 Safety Improvements Project - Design Phase.
Body
The purpose of the proposed RM 620 Safety Improvements project from Deep Wood Drive to IH 35 is to improve safety and enhance mobility in the project area. The project includes a bridge to carry RM 620 traffic over the Union Pacific Railroad (UPRR) and Chisholm Trail Road. In order to maintain access to businesses and residences in the vicinity of the proposed bridge, at-grade local access roads will be constructed between Lake Creek Drive and Chisholm Trail Road. A second bridge is proposed to carry RM 620 traffic over Lake Creek Drive. The project area is within the Edwards Aquifer Recharge Zone.
On June 27, 2013, an engineering services contract for $955,823.00 with Halff Associates, Inc. was approved by the City Council. Services covered in this contract were geometric schematic and 30% Plans, Specifications, and Estimate (PS&E).
Supplemental Agreement No. 1, approved May 8, 2014, provided for professional services to develop 60% PS&E in accordance with the approved preliminary design schematic and 30% PS&E developed for this project. The cost of these services was $698,445.00 and brought the total contract amount with Halff Associates, Inc. to $1,654,268.00.
Supplemental Agreement No. 2, approved May 14, 2015, provided for engineering, surveying, and other professional services to develop and finalize 100% PS&E, utility coordination and water/wastewater relocation design, water quality, environmental site remediation, public involvement, and right-of-way (ROW) and easement parcels for this project. The work performed under this supplemental delivered the final design in accordance with the approved preliminary design schematic, 30% and 60% PS&E developed for this project and additionally rendered the project "shovel ready". The cost of these services was $682,232.00 and brou...
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