| Consider Action on Change Order Number 3 to the Contract with Teague, Nall, and Perkins, Inc., for Midway Road Revitalization Design Project Adding 30 Days to the Design Contract Time and Increasing the Design Fee for Work Related to Additional Water and Wastewater Design, the Development of Temporary Construction Easements for Seventeen Parcels, and Conceptual Level Design of a Parking Lot Adjacent to 14951 Midway Road, and Authorizing the City Manager to Execute the Change Order in an Amount Not to Exceed $73,000. |
In 2012, the Addison voters approved $16,000,000 in bonds for the reconstruction of Midway Road.
Design for the Midway Road project was awarded to Teague, Nall and Perkins, Inc. (TNP) and the design work began in October 2014. Previously, Change Orders 1 and 2 were approved for TNP's contract. Those Change Orders were:
- Change Order Number 1: Out-of-scope items; project re-boot after 2.5 year hold; addition of the side-path and its affect on the design of the roadway; rate change adjustments; and additional design days. The amount of the Change Order was $678,500.
- Change Order Number 2: The following additional design work associated with intersection of Belt Line Road and Midway Road; additional signs, marking, and signalization; additional traffic control and sequencing, additional easement and right-of-way acquisition activities associated with the sidepath, and additional design days. The amount of this Change Order was $185,000.
This item will approve Change Order #3 for Teague, Nall, and Perkins' (TNP) design contract for the revitalization of Midway Road from $2,862,359 to $2,935,359 and add 30 more days to the design contract to accommodate the additional scope of work associated with the concept level design of the parking lot.
The table below outlines the recommended changes to TNP's contract:
| Task Scope |
Description of Additional Work and Days |
Increase in Cost / Schedule |
| E |
Field Surveying: Additional Scope for Temporary Construction Easements for 17 parcels |
$25,500 |
| I |
Plan Development: Concept level design for parking lot adjacent to 14951 Midway Road |
$7,500 |
| M |
Water and Wastewater Improvements: Addition of Basin I sewer line plan sheets, additional water line improvements at the Belt Line Road intersection and at the DART rail line, and Town design modifications |
$40,000 |
| Total Amount of Change Order |
$73,000 |
| |
Additional Contract Days to complete the additional concept design of the parking lot |
30 |
Details of the Task Scope (additional design work include):
- Task Scope E - Field Surveying: TNP will provide additional survey work to develop a Temporary Construction Easement for up to 17 parcels on which no acquisition agreement has been reached to date. If condemnation is needed, the final offer must include the value of the entire acquisition, including the value of a temporary construction easement, if needed. Obtaining the Temporary Construction Easements will help ensure that the process is not delayed.
- Task Scope I - Miscellaneous Plan Development: TNP will provide a concept level cost estimate for a parking lot adjacent to 14951 Midway Road and Opinion of Probable Construction Cost. This is recommended to aid in determining if it is practicable to trade this parking lot for the property needed along Midway Road at that location.
- Task Scope M - Water and Wastewater Improvements: The additional work is associated with the inclusion of the tie-in of the plans for the Basin I sanitary sewer line as it intersects with Midway Road. The Basin I project is under design by another engineering firm and will be bid and constructed under a separate construction contract. Included also are additional plans for the Belt Line Road and Midway Road intersection. When the design for Midway Road began, it was thought that the intersection would be improved during the Belt Line Road electrical undergrounding project. When the decision was made to stop that project just west of Midway Road, the plans for the intersection were added to the design of Midway Road. Also, since design began, Town Staff identified additional improvements needed to the 16" water line under the DART right-of-way, as well as design modifications that will help to increase maintenance and operational efficiencies.
The following table shows the total amount for the Midway Road Revitalization design contract:
| Original Design Contract Amount |
Change Order #1 Amount |
Change Order #2 Amount |
Change Order #3 Amount |
Total Design Contract Amount |
| $1,998,859 |
$678,500 |
$185,000 |
$73,000 |
$2,935,359 |
Funding is available from the 2018 Certificates of Obligation issued for the design and construction of Midway Road. |