Exhibit 1 - Agenda Information Sheet - CO 8City of Denton
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AGENDA INFORMATION SHEET
DEPARTMENT: Procurement & Compliance
CFO: Antonio Puente, Jr.
DATE: June 23, 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. 8 to the contract between the City of Denton and Zachry Construction
Corporation, for the Mayhill Roadway Improvements Project; providing for the expenditure of funds therefor;
and providing an effective date (IFB 6389 – Change Order No. 8 in the not-to-exceed amount of $1,832,541.66
for a total contract award aggregated to $37,436,131.77).
INFORMATION/BACKGROUND
Change Order 8 includes costs associated with delay impacts for utility relocations, staff-approved Change
Orders addressing following items: Items including: 1) Sanitary Sewer temporary bypass line to SS-03 for
constructability; 2) Inlet relocation at Valero Driveway; 3) Added concrete to address low spot near STA
297+50; 4) Soil Retention Blanket; 5) Handicap ramp removal at Morse Street; 6) Additional Signal items at
380; 7) 18” Gate Valves – Landfill; 8) Temporary Driveway over wall 6; 9) Relocation of Barb-Wire fence;
10) MBGF at Cooper Creek Bridge; 11) Milling of 16” Asphalt at Treatment Plant Road, 12) Trucking and
seeding unclassified excavation; and final reconciliation of all project overruns and underruns.
PRIOR ACTION/REVIEW (Council, Boards, Commissions)
On June 27, 2017, City Council approved a contract with Zachry Construction Corporation, in the not-to-
exceed amount of $35,877,414.52 (Ordinance 2017-189).
To date, there have been seven (7) change orders for a total decrease of $273,824.41 for a modified total
contract not-to-exceed amount of $35,603,590.12. Change Order Summary includes:
1. Change Order No. 1 ($13,291.25 increase). Included 1,065 lf. of barb wire and gate to contain
cattle.
2. Change Order No. 2 ($18,695.04 increase). Compensated contractor for potholes to locate the
existing utilities that have yet to be relocated.
3. Change Order No. 3 ($35,104.04 increase). Compensated the Contractor to remove and relay a
storm sewer pipe, install and remove low profile barriers on the south end of the project to help
protect a sidewalk near the roadway that school children use, 4,278 cy of excavation requiring a
backhoe and truck instead of a scraper due to utility poles on the south end of the project that was
not relocated at the time, allowed the contractor to keep working. $35,104.04 increase.
4. Change Order No. 4 (-$667,847.97 decrease). Removed various bid items from the original bid due
to a change in the limits of the project and compensated the contractor for various items.
City Hall
215 E. McKinney Street
Denton, Texas
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5. Change Order No. 5 ($76,184.70 increase.). Included full depth repair of existing Mayhill, at the
request of the City, in the area where the newly constructed pavement crosses the existing pavement
from the eastern side of the road to the western side of the road. This work was necessary to keep
a smooth transition for the motorists.
6. Change Order No. 6 ($137,836.23 increase). Compensated the contractor for various additional
items that were not in the original bid plans, and to perform an interim recap of the contract prior
to the traffic switch and start of Phase 2 construction. These items included: Additional retaining
wall needed on Spencer near the intersection of Mayhill for soil stabilization; low profile barriers
at the south end of the project were required to be relocated in relation to 2 DISD bus stops to
maintain a buffer from the sidewalk; addition of a concrete mow strip to stabilize the metal beam
guard fence at the retaining wall on Spencer Rd; change type of pedestrian bridge rail that is to be
used on throughout the project; addition of low profile barrier at the southern traffic switch location
for motorist safety; Repair and installation of new barbed wire fence along Spencer Road;
pedestrian pole assembly installation and relocation and temporary signal cabinet and relocation at
University and Spencer; storm drain modifications for existing drainage related to new
development at Madison Lane.
7. Change Order No. 7 ($112,912.30 increase). Compensated the contractor for additional work that
is not in the original bid plans. The City is asking the Contractor, Zachry Construction Inc., to add
inlets to Mills rd. due to grade issue, add inlets to US380 that were not in the original plans,
purchase and install mailboxes on standard installation at the end of the project, and add a temporary
sanitary sewer line that was in direct conflict with proposed reinforced concrete pipe.
RECOMMENDATION
Award Change Order No. 8 with Zachry Construction Corporation, for the Mayhill Roadway Improvements
Project, in the not-to-exceed amount of $1,832,541.66, for a total contract award aggregated to $37,436,131.77.
PRINCIPAL PLACE OF BUSINESS
Zachry Construction Corporation
San Antonio, TX
ESTIMATED SCHEDULE OF PROJECT
Mayhill Roadway Construction Project has been substantially complete, contractor is finalizing Punchlist
Items and is expected to be done June 30, 2020.
FISCAL INFORMATION
These items will be funded from Engineering Account 350283402.1360.40100. Purchase Order #182084 will
be revised to add $1,832,541.66. The total budgeted amount for this item is $37,436,131.77.
The sum of all eight (8) change orders represents a 5.1% increase over original contract amount.
EXHIBITS
Exhibit 1: Agenda Information Sheet
Exhibit 2: Original Ordinance, Contract, and Change Orders
Exhibit 3: Ordinance and Change Order 8
Exhibit 4: Presentation
Respectfully submitted:
Lori Hewell, 940-349-7100
Purchasing Manager
For additional information, contact: Tracy L. Beck at 940-349-8925.
Legal point of contact: Mack Reinwand at 940-349-8333.