Exhibit 1 - Agenda Information SheetCity of Denton
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AGENDA INFORMATION SHEET
DEPARTMENT: Procurement & Compliance
CFO: Antonio Puente, Jr.
DATE: March 17, 2020
SUBJECT
Consider adoption of an ordinance of the City of Denton, a Texas home-rule municipal corporation,
authorizing the approval of Change Order No. 2 to the contract between the City of Denton and DDM
Construction Corporation, for the Bonnie Brae Roundabout; providing for the expenditure of funds therefor;
and providing an effective date (IFB 7027 – Change Order No. 2 in the not-to-exceed amount of
$116,258.81 for a total contract award aggregated to $3,607,105.86).
INFORMATION/BACKGROUND
The North Bonnie Brae Street at Scripture Street Roundabout is a part of the overall Bonnie Brae – IH 35E
to Scripture project which was included in the City’s 2014 Bond Program. This project is also a capacity
and mobility improvement in the City’s Mobility Plan as a secondary arterial. The scope consists of the
construction of a four (4) lane divided roadway, including associated storm drain improvements and
bicycle and pedestrian accommodations.
The original construction contract was awarded on May 21, 2019 to DDM Construction Corporation
(“DDM”) for $2,905,536.70.
Change Order No. 1 was awarded on September 10, 2019 to DDM for $585,310.35.
The proposed Change Order No. 2 is comprised of the following:
• Numerous quantity adjustments, associated with construction actually performed. (Net CREDIT
of $94,026.68)
• Deletion of Irrigation Removal & Replacement item. (Net CREDIT of $10,000.00)
• Excavation and embankment/covering of the existing Frontier line within the street ROW.
($12,080.91)
• Additional embankment, asphalt, and traffic control work necessary to open the intersection to
northbound and southbound traffic on August 30. ($5,455.27)
• Additional milling (removal) of existing asphalt that was found to be deeper than the boring reports
indicated. ($3,194.84)
• Labor associated with re-connecting an existing 12” drainage line that was discovered during
excavation. ($8,676.75)
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215 E. McKinney Street
Denton, Texas
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• Remobilization of demolition contractor, for demolition of the last house following asbestos
abatement. ($2,300.00)
• Installation of 2” water service line, for future irrigation of the roundabout circle. ($1,035.00)
• Removal of an existing water valve and plugging a 12” tee. ($1,380.00)
• Backfilling a trench at the north end of the project. ($2,415.00)
• Plugging two existing water service lines at the south end of the project. ($805.00)
• Lowering an existing water service on Scripture St. ($977.50)
• Additional labor for cleaning the road, adjusting traffic control, and removing temporary buttons
(pavement markings) associated with opening the intersection to traffic in all directions on
November 5. ($1,854.82)
• Traffic flagging necessary for construction vehicles to cross the temporary north-south lanes of
traffic. ($1,915.35)
• Payment to Rangeline Pipeline Services, LLC for connecting to the existing 16” and 20” water
mains. ($12,103.75)
• Second asphalt placement, including varying thicknesses at transitions to existing pavements.
($46,249.78)
• Furnishing and installing a traffic rail at the southwest corner of the intersection, as a safety measure
given the proximity of the existing electric pole to vehicular traffic. ($18,461.82)
• Excavating, dewatering, and re-grading the interior “island” of the roundabout, in preparation for
the 11” stamped and stained concrete that will be installed behind the rollover curb along the
perimeter of the island, and to facilitate proper drainage of the island. ($7,549.70)
• Adding back to the contract the 11” stamped and stained concrete item that was in the original
contract and had been removed via Change Order No. 1. ($41,760.00)
• Adding back to the contract the small sign assemblies item that was in the original contract and has
been removed via Change Order No. 1. ($22,570.00)
• Furnishing and installing sod in the roundabout island. ($2,500.00)
• Adding back to the contract the seeding item (original quantity). ($8,650.00)
• Additional seeding, corresponding to additional disturbed area. ($18,350.00)
These items combined involve a net increase of $116,258.81.
PRIOR ACTION/VIEW (COUNCIL, BOARDS, COMMISSIONS)
On September 10, 2019, Council approved Change Order #1 in the amount of $585,310.35 (Ordinance 19-
2121).
On May 21, 2019, Council approved a contract with DDM Construction Corporation in the amount of
$2,905,536.70 (Ordinance 19-1054).
RECOMMENDATION
Award Change Order No. 2 with DDM Construction Corporation for the Bonnie Brae Roundabout, in the
not-to-exceed amount $116,258.81, for a total amended contract amount of $3,607,105.86.
PRINCIPAL PLACE OF BUSINESS
DDM Construction Corporation
Addison, TX
ESTIMATED SCHEDULE OF PROJECT
This project will be started upon approval with a completion date by April 30, 2020. (Weather Permitting)
FISCAL INFORMATION
These services will be funded from account 250023467.1360.40100. Purchase Order #189746 will be
increased by $116,258.81. The budgeted amount for this item is $3,607,105.86.
EXHIBITS
Exhibit 1: Agenda Information Sheet
Exhibit 2: Original Ordinance and Contract
Exhibit 3: Ordinance and Change Order 1
Exhibit 4: Ordinance and Change Order 2
Respectfully submitted:
Lori Hewell, 940-349-7100
Purchasing Manager
For information concerning this acquisition, contact: Todd Estes, 940-349-8917.
Legal point of contact: Mack Reinwand at 940-349-8333.