Item 9DITEM 9D Approve Change Order No. 6 for the Neighborhood Improvement Project of Heatherwood Estates, Royal Oaks Addition, and Twin Creeks Addition for additional sanitary sewer improvements
with North Texas Contracting, Inc. in the amount of $75,327.00 City of Southlake Strategy Map The City of Southlake provides municipal services that support the highest quality
of life for our residents and businesses. We do this by delivering outstanding value and unrivaled quality in everything that we do. Fulfill Our Mission Live Our Core Values Promote
Learning and Growth Provide Financial Stewardship Serve Our Customers C1 Achieve the highest standards of safety and security C3 Provide attractive and unique spaces for enjoyment of
personal interests C4 Attract and keep top-tier businesses to drive a dynamic and sustainable economic environment C2 Provide travel convenience within City and region B6 Optimize use
of technology B1 Achieve best-in-class status in all City disciplines B5 Improve performance of delivery and operational processes B4 Provide high quality customer service B2 Collaborate
with select partners to implement service solutions F1 Adhere to financial management principles and budget F3 Achieve fiscal wellness standards F4 Establish and maintain effective internal
controls F2 Invest to provide and maintain high quality public assets Manage the Business Safety and Security L2 Enhance leadership capabilities to deliver results L3 Attract,
develop and retain a skilled workforce L1 Ensure our people understand the strategy and how they contribute to it L4 Recognize and reward high performers C5 Promote opportunities for
partnerships and volunteer involvement Deliver on Our Focus Areas Integrity ● Innovation ● Accountability ● Commitment to Excellence ● Teamwork B3 Enhance resident quality of life
and business sustainability through tourism L5 Empower informed decision-making at all levels in the organization Infrastructure Quality Development Mobility Performance Management
and Service Delivery Partnerships and Volunteerism Project Location Heatherwood, Royal Oaks, Twin Creeks Segment of Dove Road affected by Change Order No. 6 BACKGROUND 2001 – Completed
preliminary design engineering for the neighborhood sewer project April 2008 City Council awarded contract to prepare final plans and specifications for the neighborhood sewer additional
pavement reconstruction of the neighborhood streets and East Dove Road from Lonesome Dove Rd to Kimball Ave added sewer improvements along Pearson Road from Johnson Road to Gray Lane
added water, sewer, storm, and paving improvements added along Primrose Lane BACKGROUND November 3, 2009 City Council awarded construction contract to North Texas Contracting,
Inc. May 4, 2010 City Council approved an amendment to the engineering contract to move the sewer out into the road using the directional boring method Proposed Change Order No.
6 Proposed Changes: Affects Dove Rd from Kimball to Sunshine Provides for asphalt surface during concrete ribbon curb construction period. Provides safety to motorists and addresses
potential delays due to adverse weather conditions. Proposed Change Order No. 6 Covered in Change Order: Mixing existing subgrade material to depth of 15 inches after scarification;
Removal and haul off of top 7 inches of material to provide for additional thickness of asphalt binder course; Cement stabilize 8 inches of subgrade (already in contract); Apply 2
inches of Type ‘B’ Asphalt Binder Course Approve Change Order No. 6 with North Texas Contracting Original Contract $3,748,737.54 Change Orders No. 1-5 $819,414.00 Change
Order No. 6 $75,327.00 Total Contract Amount $4,643,478.54 Allocate additional PMA funds to this project RECOMMENDATION Approve Change Order No. 6 for the Neighborhood Improvement
Project of Heatherwood Estates, Royal Oaks Addition, and Twin Creeks Addition for additional sanitary sewer improvements with North Texas Contracting, Inc. in the amount of $75,327.00
Questions? BACKGROUND January 2010, Change Order No. 1 approved by the City Manager included lowering of the 12-inch water line on Primrose Lane associated with the Primrose sewer
installation $6,740.00 February 2010 , Change Order No. 2 approved by the City Manager included 12-inch water line lowering on Johnson Road associated with the Pearson sewer installation
storm drain line also adjusted due to conflict $18,651.00 BACKGROUND April 2010, Change Order No. 3 approved by the City Manager included 285 feet of a 4-inch french drain along
Primrose Lane to alleviate the high ground water due to the recent rainfall in order to stabilize the road for paving activities $12,630.00 Change Order No. 4 Change Order No.
4 exceeded City Manager Approval Authority - $778,949.00 Current design Location of sewer line is 5 feet west of the pavement in ROW maintained by residents Heavy landscaping, new
driveways, and existing retaining walls along the current alignment 13 properties along East Dove Road currently designed to flow to proposed sewer to be constructed along Creekside
Drive – sewer service would be delayed due to the proposed Creekside lift station issues Change Order No. 4 Changes move location of sewer into road but use original directional
drilling method to install if repairs are required to fix “bellies” or sags in the line, the road is dug up and this would avoid digging up resident’s landscaping and disturbing retaining
walls Neighborhood roads are still scheduled for paving reconstruction Change Order No. 5 Changes Provided removal and replacement of storm culvert pipe City Manager Approved
$ 2,454 * * * * * * * * * * * * * * * * * *