2012-06-25 Meeting Report (Storm Water Master Plan)
SPIN MEETING REPORT
CASE NO.
Ordinance No. 1030
PROJECT NAME:
Storm Water Master Plan Southlake 2030
SPIN DISTRICT:
Citywide
MEETING DATE:
June 25, 2012; 7:00 PM
MEETING LOCATION:
1400 Main Street, Southlake, TX
Training Rooms 3A 3B
TOTAL ATTENDANCE:
Ten (10)
SPIN REPRESENTATIVE(S) PRESENT:
None
CONSULTANT(S) PRESENT:
Lynn Hilburn, Derek Cheatham; Neel Schaffer /
Cheatham & Associates
STAFF PRESENT:
Bob Price, Director of Public Works; Steve Anderson, Civil Engineer;
and Lorrie Fletcher, Planner I
STAFF CONTACT:
Steve Anderson, Civil Engineer (817)748-8101; sanderson@ci.southlake.tx.us
EXECUTIVE SUMMARY
The Southlake 2030 Water, Waste Water & Storm Water Committee has finished its
work on the storm water element of this plan and has made the recommendation that
City Council consider approval of the three elements (1: water; 2: waste water and 3:
storm water) separately. As such the storm water element has been completed and is
ready for formal approval. Adopting the plan in FY 2012 provides staff and City Council
the ability to use the plan as a guide for funding recommendations for FY 2013.
The primary purpose of the current study is to analyze new, re-constructed drainage
facilities to develop a tiered priority list of drainage structure improvement projects to
further reduce the possibility of structure (building) flooding and to reduce the number of
ughfares and arterials are blocked by water
overtopping the roads and streets.
Presentation outline:
Background and History
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Studies
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Drainage Basins
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Improvements and Funding
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QUESTIONS / CONCERNS
Why do you need three times the size of the box
know it would not be sufficient?
The existing culvert is a very old structure. We have updated knowledge
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regarding flooding.
The detention ponds are all full; how can they hold additional water if heavy rain comes?
Detention ponds today are engineered to hold 2-10-
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been able to retro-fit older structures. Studying storm water and drainage is an
art & science using statistical chance of occurrence.
How much rainfall is a 2-10-100 year storm?
A 100-year is 10 inches per hour
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A 25-year is 7 inches per hour
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A 2-year is 5 or 6 inches per hour
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There are bar ditches north of Dove on Carroll. They were built after the last study was
done. We never see more than 2 inches of water. It is very hard to mow and is a safety
hazard. Can anything be done? Director Price offered to meet with these property
owners to discuss options.
SPIN Meeting Reports are general observations of SPIN Meetings by City staff and SPIN Representatives. The report is neither
verbatim nor official meeting minutes; rather it serves to inform elected and appointed officials, City staff, and the public of the issues
and questions raised by residents and the general responses made. Responses as summarized in this report should not be taken
as guarantees by the applicant. Interested parties are strongly encouraged to follow the case through the Planning and Zoning
Commission and final action by City Council.