Title
Consider a resolution authorizing the Mayor to execute Supplemental Contract No. 8 with Brown & Gay Engineers, Inc. for the Gattis School Road Segment 6 Project.
Body
The City entered into a contract for Engineering services with Brown and Gay Engineers Inc. for the work on Gattis School Segment 6 in February of 2016 in the amount of $482,439.90. The project consists of reconstructing approximately 0.65 miles of the existing 4-lane roadway section to a 6-lane divided facility and adding a right turn lane on Red Bud Lane.
As the work has progressed and the scope has increased it was necessary to amend the contract and to modify the provisions for the scope of services and to increase the compensation by $401,872.25 increasing the total to $884,312.15.
Supplemental Agreement #2 was for additional Subsurface Utility Engineering (SUE). As the limits of the project were extended so was the need to have additional SUE work to performed to complete conflict analysis. This Supplemental Agreement is in the amount of $8540.00 increasing the total price to $892,852.15.
Supplemental #3 was for additional surveying as some of the parcels to be acquired were modified slightly to accommodate the owners. It will also include drainage analysis and to develop storm water hydrology for the existing and ultimate roadway sections. Signing, Pavement Markings and signalization will also be developed and traffic signal and intersection layouts will be designed. This supplemental will increase the compensation by $177,053.00. This will bring the total contract amount to $1,069,905.15.
Supplemental #4 was to modify the provisions for the scope of services to include the redesign of water lines in conflict with the proposed roadway design and to increase the compensation by $119,914.00 for a total of $1,189,819.15.
Supplement #5 was for full 100% PS&E documents including traffic control plans for all phases of the work, Illumination Study and design of roadway illumination and layout, including temporary traffic signals, and construction and bid services. The cost of Supplemental Agreement #5 is $216,816.50. The total cost of the amended contract will be $1,406,635.65.
Supplemental #6 was for the additional sub surface engineering and coordination with the utility companies, to review their plans, make revisions and assign layouts, identify conflicts and work through resolutions, and attend field meetings. The cost of this supplemental is $25,190.00. The total engineering contract to date is $1,431,825.65.
Supplemental #7 was for the design efforts to include the ITS design for the traffic signals for future use. It also includes Utility coordination efforts with Manville and other providers, the HOA Parcel edit and Construction Phase Services. This supplemental is in the amount of $88,390.00. This will bring the total contract price to $ 1,520,215.65.
Supplemental #8 is for adding revisions to the current plan set to include the redesign of the proposed drainage line to aid in lowering the construction costs and help to speed up that phase of construction. This will also include revising the TCP, additional drainage work, and to prepare the new bid package. This supplemental agreement is for $125,704.00. This will bring the contract price to $1,645,919.65.
Cost: $125,704.00
Source of Funds: RR Transportation and Economic Development Corporation