From
max
Title
Fleet Service Center Change Order/Amendment No. 6 with Modern Contractors in the amount of $71,105 for a security gate, service bay epoxy floor coating, corridor light and masonry work
Presenter
Andy Henning, Senior Building and Construction Project Manager
Recommended Action
Approve
Analysis
On December 13, 2016 the City Council awarded the Construction Manager at Risk (CMAR) contract to Modern Contractors for pre-construction services in the amount of $1000. This award provided for CMAR services including development of project estimates, preliminary construction schedules, value engineering proposals and constructability review during the Design Phase.
The current Change Order/Amendment No. 6 in the amount of $71,105 is divided as follows:
1. $16,250 for security gate at entry to the service yard at the far west edge of the property
2. $50,311 for service bay epoxy floor coating for improved maintainability and floor life
3. $530 for a light fixture as needed in corridor connection area
4. $4,014 for infill of existing window with concrete masonry along with removal and reconstruction of hollow masonry columns where required for new canopy support
Change Order/Amendment No. 1 in the amount of $5,945,577 was approved by City Council on September 5, 2017 (17-7105) for the balance of construction cost for additions and renovations to the Fleet Services Center; 5% contingency in the amount of $297,279; budget allowance of $400,000 for owner-provided furniture/fixtures/equipment (FF&E); $50,000 allowance for construction testing; $50,000 allowance for data/IT/security; plus a $75,000 allowance for temporary office trailer renovations and closeout/return for a total funding request in the amount of $6,817,856.
Change Order/Amendment No. 2 in the amount of $81,261 was approved by City Council on
December 12, 2017 (17-7418) and was comprised of the following components:
1. $35,456 for delivery and setup of temporary office trailers for Fleet Services staff
2. $2,400 for flooring revisions from vinyl composition tile (VCT) to ceramic tile for durability and life cycle costs savings
3. $3,847 for site power pole demolition and removal of base foundations
4. $18,298 for demolition of an existing mezzanine due to code requirements prohibiting its continued use based on cost of improvements that would be necessary
5. $21,260 for change from Carrier mechanical units to Trane mechanical units in order to maintain City standards
Change Order/Amendment No. 3 in the amount of $42,862 was approved by City Council on February 6, 2018 (18-7597) and was comprised of the following components:
1. $12,450 for 4” PVC conduit for rerouting of AT&T line into IT room
2. $5,820 for refeeding of electrical panel W required to facilitate new construction
3. -$5,722 for removal of TXDOT approach from new concrete paving scope of work
4. $4,798 for replacement of collapsed sewer pipe from existing restrooms to main line
5. $2,070 for change of metal deck from 22 gauge to 20 gauge
6. $10,691 for door hardware changes required to coordinate with City security equipment
7. -$25,678 for deletion of water line loop around new service bay expansion
8. $708 for surveying time to provide layout of spot grades for City storage building planned
9. $15,397 for additional 2” thickness of concrete where lime stabilization was not possible
10. $13,228 for added grade beam connection details for entry canopy foundation design
11. $9,100 for additional joist, decking and concrete for mezzanine
Change Order/Amendment No. 4 in the amount of $60,834 was approved by City Council on April 3, 2018 (18-7756) and was comprised of the following components:
1. $18,340 for temporary office trailer provisions for staff relocation during construction
2. $700 for new fence tie-in/connection to existing gate
3. $3,203 for drilling and epoxy of dowels into retaining wall to attach paving
4. $10,100 for fire department connection installation as required by fire marshal along with new water meter location and main line tap for irrigation system
5. $3,500 for coded infrared transmitter (Opticom/Tomar) for emergency vehicle gate access as required by fire marshal
6. $8,735 for concrete tilt wall panel saw cutting as required to coordinate with existing building footings once excavated and exposed to view
7. $4,796 for joist length coordination with engineered concrete tilt wall pocket sizes
8. $10,250 for change to Blue Ridge lighting controls per City standards
9. $1,210 for conduit pathway to future gate pedestal location prior to pouring of new concrete curbs and drives
Change Order/Amendment No. 5 in the amount of $20,452 was approved by City Council on June 5, 2018 (18-7954) and was comprised of the following components:
1. $3,495 for island concrete, curbs and bollards for card reader access at entry gate 2
2. $1,189 for miscellaneous steel lintel support required along with structural steel column connection modification
3. $1,675 for added steel support required for large industrial fan provisions
4. -$270 for removal of GFCI provisions where not required by code
5. $4,100 for additional sewer line manhole necessary for future maintenance and access
6. $5,192 for coordination of new concrete tilt wall and grade beam construction with unforeseen existing building pier cap provision
7. $500 for elevation adjustment of existing hydrant to coordinate with new concrete island
8. -$4,605 for removal of concrete pour-back at new storm line installation due to existing deteriorating asphalt condition needing attention by the City
9. -$6,435 for removal of a portion of new concrete planned in order to coordinate with the existing elevation of the Environmental Services hazardous materials area which cannot be moved until a future fiscal year
10. $7,849 for landscape adjustments and added concrete mow strips as requested per the overall project review by the City of Grand Prairie Parks, Arts and Recreation Department
11. $4,789 for the installation of a wireless ADA door operator at the north entry door to the Transit dispatch and office area
12. $1,000 for the provision of support structures for new piping being installed at the roof surface of the facility in order to maintain existing roof warranty requirements
13. $1,251 for additional reinforcing steel at the south masonry wall of the service center bay addition due to the wall be 12” in width versus 8” in width
14. $722 for increased top of wall framing connection requirements to support the composite metal panels at the soffit condition
All items will be incorporated into the current Modern Contractors contract for a revised total contract amount of $6,223,091.
Financial Consideration
Funding in the amount of $71,105 is available in Municipal Facilities Capital Projects Fund (405090) WO #01502701-03 (General Service Center Phase I) contract PO#187597 contingency.