Exhibit 1 - Agenda Information Sheet - Amendment 6City of Denton
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AGENDA INFORMATION SHEET
DEPARTMENT: Procurement & Compliance
CFO: Antonio Puente, Jr.
DATE: June 25, 2019
SUBJECT
Consider adoption of an ordinance of the City of Denton, a Texas home-rule municipal corporation,
authorizing the approval of a sixth amendment to a Professional Services Agreement between the City of
Denton and Teague Nall and Perkins, Inc, amending the contract approved by City Council on March 21,
2017, in the not-to-exceed amount of $118,000, amended by Amendments 1-5 approved by Purchasing
Staff, the City Manager and City Council; said sixth amendment to provide Architect or Engineering
services relating to the Magnolia Drainage Phase II project; providing for the expenditure of funds therefor;
and providing an effective date (File 6405 – providing for an additional sixth amendment expenditure
amount not-to-exceed $88,055, with the total contract amount not-to-exceed $385,505).
INFORMATION/BACKGROUND
The Magnolia Drainage project was conceived in order to improve storm water drainage conditions and
prevent flooding on Hinkle Drive and in the adjacent neighborhoods between West Windsor Drive to the
north and University Drive to the south.
Phase I of the project consisted of design and construction of a storm water detention basin north of West
Windsor Drive between Windsor and North Elm Street. Phase II of the project consists of the design of
storm drain improvements to address flooding in portions of the Headlee Addition. Teague Nall and Perkins,
Inc. was selected to perform the Phase II design. On March 21, 2017, City Council approved an agreement
with Teague Nall and Perkins, Inc. for Magnolia Drainage Phase II, in the amount of $118,000.
Amendment No. 1 to the Professional Services Agreement increased the scope of the project to include
surveying and engineering necessary to provide construction plans for the reconstruction of Hinkle Drive
from University Drive to Windsor Drive and reconstruction of Windsor Drive from 200 feet west of Hinkle
Drive to US 377. Amendment No. 1 also included the design of the replacement of approximately 870 feet
of sanitary sewer line in Windsor Drive not originally anticipated to be necessary as part of the original
scope of the project. The amount of Amendment No. 1 was $90,000 bringing the total amount of the contract
to $208,000.
Amendment No. 2 increased the scope of the project to include surveying and engineering necessary for
the water meter and water service relocation, sanitary sewer relocation, channel improvements, water line
lowering and creation of easement documents. The amount of Amendment No. 2 was $21,300 bringing the
total amount of the contract to $229,300.
Amendment No. 3 increased the scope to replace the concrete-lined channel with an underground storm
drain. The underground storm drain will be bid as the Base Bid, and the concrete channel will be bid as an
Alternate. The amount of Amendment No. 3 was $46,500 bringing the total amount of the contract to
$275,800.
City Hall
215 E. McKinney Street
Denton, Texas
www.cityofdenton.com
Amendment No. 4 increased the scope to replace a sanitary sewer main line by cross-connecting sewer
laterals into an alternate main; to accommodate a new development along the west side of Hinkle. This
includes coordination with the designer of that development with changes to water, sewer and storm drain;
and revisions to reflect changes in the driveway approach and sidewalks at North Lakes Park, including
additional topo verification of existing conditions. The amount of Amendment No. 4 was $15,000 bringing
the total amount of the contract to $290,800.
Amendment No. 5 increased the scope to prepare four temporary construction easements (TCE) by
establishing boundary lines in the field and preparing the TCE exhibits. The amount of Amendment No. 5
was $6,650 bringing the total amount of the contract to $297,450.
Amendment No. 6 proposes survey and design services for a roundabout at the intersection of Hinkle and
Mimosa, a traffic calming circle at a to be determined intersection, sidewalk, driveway and wastewater
manhole relocations, and additional construction phase services.
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
On March 21, 2017, City Council approved a contract with Teague Nall and Perkins, Inc., in the not-to-
exceed amount of $118,000 (Ordinance 2017-098).
On June 5, 2018, City Council approved Amendment No. 2 with Teague Nall and Perkins, Inc., in the
not-to-exceed amount of $21,300 (Ordinance 18-1887).
On June 24, 2019, this item will be presented to the Public Utilities Board for recommendation to the City
Council for consideration.
RECOMMENDATION
Award Amendment No. 6 with Teague Nall and Perkins, Inc., for additional survey and design services for
the Magnolia Drainage Phase II project, in the not-to-exceed amount of $88,055, for a total amended
contract amount of $385,505.
PRINCIPAL PLACE OF BUSINESS
Teague Nall and Perkins, Inc.
Denton, TX
ESTIMATED SCHEDULE OF PROJECT
• Roundabout design:
o Preliminary plans within three weeks
o Final plans within three weeks
• Easements Submittal within three weeks of approval of the preliminary plans
• Plan Revisions within two weeks
• Construction related services will proceed with construction
FISCAL INFORMATION
Account Numbers Amount Funding Source Unencumbered
350425467 $86,055 Streets: Hinkle Drive $357,675.48
640395541 $2,000 Wastewater $18,537.96
EXHIBITS
Exhibit 1: Agenda Information Sheet
Exhibit 2: Original Contract, Original Ordinance and Amendments
Exhibit 3: Ordinance and Amendment
Respectfully submitted:
Lori Hewell, 940-349-7100
Purchasing Manager
For information concerning this acquisition, contact: Michael Smith at 940-349-7656.
Legal point of contact: Mack Reinwand at 940-349-8333.