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ADDENDUM TO CITY SECRETARY CONTRACT N0. 4U"4
THIS ADDENDUM TO CITY SECRETARY CONTRACT NO. 40564
("Addendum") is made and entered into by and between THE CITY OF FORT WORTH, a
home -rule municipal corporation of the State of Texas ("City"), acting by and through the
Transportation and Public Works Department Assistant Director for the Stormwater
Management Division ("SWM"), and THE FORT WORTH ZOOLOGICAL
ASSOCIATION, a Texas nonprofit corporation (the "Zoo Association"), acting by and through
its duly authorized Executive Director.
By execution of this Addendum, the City and Zoo Association agree that the following
measures will be taken within fifteen (15) months of the Effective Date to clean and clear along
Zoo Creek to improve water flow and reduce the risk of flooding.
Phase I —Isolated and Speci ac Vegetation Removal
Vegetation removal, as agreed upon by Zoo Association staff and SWM staff, will be performed
along Zoo Creek to increase the flow of water within the creek's banks and reduce the height of
the water during high water occurrences. The City shall thin out and clear vegetation in
identified locations, which will reduce the frictional roughness along the creek's banks and allow
the water in the creek to flow at a lower elevation.
Phase II- Flood Protection Wall
In addition to the vegetation removal, the City, through its Stormwater Management Division,
will construct a flood protection wall along Zoo Creek in two specific locations as agreed upon
by Zoo Association staff and SWM staff. The proposed wall will be erected on the existing bank
and be approximately 500 feet in length and 12 to 18 inches high at each of the two locations.
The wall will be constructed to act as a diversion wall and protection device from high water
occurrences. The wall will be constructed out of a rigid material (e.g. concrete, gunite, or
shotcrete) that will be agreed upon by Zoo Association staff and SWM staff.
Following execution of this Addendum, SWM will schedule a field visit with Zoo Association
staff to (i) determine access and staging areas to be utilized by SWM;identify the necessary
areas for vegetation removal; and, (iii) determine the specific locations for the flood protection
wall.
IN WITNESS WHEREOF, the parties hereto have executed this Addendum in Fort Worth,
Texas, as of the day and year indicated below.
CITY OF FORT WORTH, TEXAS FORT W
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Signed,