Exhibit 1 - Agenda Information Sheet Amend 4City of Denton
_____________________________________________________________________________________
AGENDA INFORMATION SHEET
DEPARTMENT: Procurement
DCM: David Gaines
DATE: June 28, 2022
SUBJECT
Consider adoption of an ordinance of the City of Denton, a Texas home-rule municipal corporation,
authorizing the approval of a fourth amendment to a Professional Services Agreement between the City of
Denton and Halff Associates, Inc., amending the contract approved by City Council on November 6, 2018,
in the not-to-exceed amount of $837,900.00, amended by Amendments 1-3 approved by Procurement and
City Council, said fourth amendment to provide a Drainage Study on Oakland Street for the Capital
Improvement Projects Department; providing for the expenditure of funds therefor; and providing an
effective date (File 6590-041 – providing for an additional fourth amendment expenditure amount not-to-
exceed $84,000.00, with the total contract amount not-to-exceed $1,140,040.00). The Public Utilities Board
recommends approval (5 – 0).
INFORMATION/BACKGROUND
In November 2018, City Council approved a contract with Halff Associates, Inc. for the design of the Elm
and Locust Phase 2 Project. Halff Associates was also contracted to perform the Watershed Study along the
Pecan Creek Tributary in October 2017. The staff has reevaluated the project scope of Elm and Locust
Phase 2 while scoping the neighborhood rehabilitation program associated with the 2019 Street
Reconstruction Bond. Staff found the two (2) areas had several street segments that overlapped and
identified the need for a larger drainage system incorporating the Oakland Street area along North Pecan
Creek. With the approval of this amendment, Halff Associates will model the existing conditions and
simulate the 10, 25, 50, and 100-year flows. Based on the model results, level of service summary, and
inundation mapping, Halff Associates will provide a report presenting the data including an opinion of
probable construction costs for the final selected alternative. Staff will utilize this information for budget
planning within the coming years' Capital Improvement Projects budget.
PRIOR ACTION/REVIEW (Council, Boards, Commissions)
On November 6, 2018, City Council approved a contract with Halff Associates, Inc., in the not-to-exceed
amount of $837,900 (Ordinance 18-1662).
On June 19, 2019, Procurement approved the first amendment with Halff Associates, Inc., in the not-to-
exceed amount of $40,300.
On May 13, 2020, Procurement approved a second amendment with Halff Associates, Inc., for a 5% billing
reduction due to Covid-19 from April 2020 until June 30, 2020.
City Hall
215 E. McKinney Street
Denton, Texas
www.cityofdenton.com
On January 12, 2021, City Council approved a third amendment with Halff Associates, Inc., in the not-to-
exceed amount of $177,840 (Ordinance 21-017).
On June 13, 2022, the Public Utilities Board (PUB) recommended this item to the City Council for
consideration.
RECOMMENDATION
Award Amendment No. 4 with Halff Associates, Inc., for a Drainage Study on Oakland Street for the
Capital Improvement Projects Department, in a not-to-exceed amount of $84,000, for a total amended
contract amount of $1,140,040.
PRINCIPAL PLACE OF BUSINESS
Halff Associates, Inc.
Fort Worth, TX
ESTIMATED SCHEDULE OF PROJECT
This project will be started upon approval with a completion date by September 30, 2022.
FISCAL INFORMATION
These services will be funded from Drainage Channel Rehab account 650039561.1360.20100. Purchase
Order #187638 will be revised to include the fourth amendment amount of $84,000. The total amount of
this contract is $1,140,040.
EXHIBITS
Exhibit 1: Agenda Information Sheet
Exhibit 2: Original Contract and Ordinance
Exhibit 3: Amendment 1
Exhibit 4: Amendment 2
Exhibit 5: Ordinance and Amendment 3
Exhibit 6: Ordinance and Amendment 4
Respectfully submitted:
Lori Hewell, 940-349-7100
Purchasing Manager
For information concerning this acquisition, contact: Seth Garcia, 940-349-8938.
Legal point of contact: Marcella Lunn at 940-349-8333.