From
Max
Title
Change Order/Amendment No. 3 with Hill & Wilkinson General Contractors for the City Hall Municipal Campus Phase Two construction work, in the amount of $75,637.77, for added exterior structure and materials, new door and revised door frames, supplemental exterior drainage, electrical code compliance upgrades, rooftop mechanical adjustments, miscellaneous interior support framing and drywall additions, elimination of soil conditioning and contractor damage reimbursement.
Presenter
Andy Henning, Senior
Recommended Action
Approve
Analysis
On June 4, 2019 the City Council awarded the Construction Manager at Risk (CMAR) contract to Hill & Wilkinson General Contractors (19-9024) for pre-construction services in the amount of zero dollars ($0). This award provided for CMAR services including development of project estimates, preliminary construction schedules, value engineering proposals and constructability review during the Design Phase.
Current Change Order/Amendment No. 3 in the amount of $75,637.77 is divided as follows:
$70,495.30 for additional structural steel supports, masonry supports and exterior stone material due to existing conditions discovered once demolition was completed
$2,083.41 for additional door, frame and hardware required
$19,667.82 for a trench drain along the west side of the building due to moisture concerns
$5,094.41 for added moisture barrier at exterior walls where it was discovered that it did not exist within the original building construction
$14,950.65 for additional structure steel support due to existing conditions discovered
$4,085.16 for further electrical code compliance upgrades of existing equipment
$1,813.29 for raising of an existing rooftop mechanical unit to coordinate with new roof installation
$3,915.56 for wood panel material and stain revisions above the public lobby transaction windows
$1,894.96 for added metal stud framing and drywall to create a required soffit condition
$48,069.22 credit for elimination of the potassium injection treatment anticipated to be required at the southeast corner of the building by the geotechnical and structural engineers
$1,863.56 for added wood paneling framing support above the public lobby transaction windows
$2,737.76 for ten revised hollow metal door frames to coordinate with the ceiling height reduction
$4,894.89 credit for reimbursement for new furniture ordered due to water infiltration damage
Change Order/Amendment No. 1 in the amount of $6,215,173 was approved by City Council on December 17, 2019 (19-9613) and represented the Guaranteed Maximum Price (GMP) for the scope of work defined in the Rouch Architects Construction Documents package as competitively bid by Subcontractors to Hill & Wilkinson General Contractors. Costs above and beyond the Hill & Wilkinson portion of the project addressed in Change Order/Amendment No. 1 included previously
approved Construction Manager pre-construction fees ($0) and an asbestos remediation allowance ($30,000); 5% contingency ($310,759); allowance for FF&E ($1,200,000); allowance for IT/data design and installation ($95,000); allowance for A/V equipment ($200,000); allowance for door access and security systems ($95,000); allowance for Oncor Electric power line relocation ($125,000); plus an allowance for construction testing ($25,000), all of which total the overall project budget of $8,295,932.
Current Change Order/Amendment No. 2 in the amount of $109,179.10 was approved by City Council on June 2, 2020 (20-10026) and was comprised of the following:
$7,980.98 for electrical panel LA-4 coordination with existing conditions
$94,410.97 for electrical upgrades of existing equipment in order to meet all code requirements
$528.84 for minor adjustments to landscape and civil engineering designs to coordinate both scopes
$2,706.35 for change in length of HVAC slot diffusers required to allow proper air flow
$3,551.96 for replacement of existing fire alarm strobes in City Hall West in order to allow new overall fire alarm system for all three (3) connected City Hall buildings to communicate seamlessly and report appropriately to the Grand Prairie Fire Department
Items applicable to performance by the Construction Manager at Risk (CMAR) will be incorporated into the current Hill & Wilkinson General Contractors contract for a revised total contract in the amount of $6,399,989.87.
This item was taken to the Finance and Government Committee on August 4, 2020 for their review and recommendation for approval.
Financial Consideration
Funding for change order/amendment no. 3, in the amount of $75,637.77, is available in the Municipal Facilities Capital Projects Fund (405090) WO #02002603 (Municipal Complex Ph II) PO 413519 contingency.