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COLLEGE STATION vjq(
P. O. Box 9960 . 1101 Texas Avenue
Tel: 409 764 3500
College Station, TX 77842
September 8, 1997
Riverview Inc.
Attn: Mike Davis
4002 Aspen
Bryan, Texas 77802
RE: Carter Creek Relocation Project
Dear Mr. Davis:
We have completed the review of your "Carter Creek Relocation" concept dated June 1997. In
concert ,with the City of Bryan development engineering staff: we discussed the concept and
details of your design.
There are maintenance and design issues that need to be addressed prior to approval of the
relocation concept The following is a list of concerns currently identified by the joint Bryan
and College Station review:
1. As previously discussed there are ooncemswith the maintenance of the
proposed facilitf'"
a. If the City can not maintain the proposed improvements, a plan te>
ensure the design Un" values and other assumptions will be requIred.
b. The City has some concern with regard to the "flapper" gates being
installed as part of the detention basins at the lower end of the project.
This design has the potential of not functiooingpropedy due to debris
getting caught within the opening and not allowing them to close). You
haVe stated that the gates provide for added protection. but that if in the
event they did not operate properly there would be no impact to the
downstream properties. If this is in fact 1he ~ it \\'Quid be belttel' to
remove the gates and portions of the bemted areas in order to utilize
the additional capacity for 1he entire channel. '
2. In an effort to determine 1he amomrt of s~ent load the channel will be
can:ying as a result of this projeCt, you ,will n~ to submit a silt loading
analysis. This information will help to determine 1he Jl1"fnteoonce schedule
necessary to mait)(nin the design assumptions associated with this project.
Home of Texas A&M University
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Mr. Mike Davis
Carter Creek Relocation Project
September 8, 1997
Page 2
3. As part of the maintenance concerns for this project, the City will require the
channel bottom to be concrete lined. This lining will provide a solid \\'Qdcing
surface to perform maintenance activities.
4. The developer will be responsible for submitting a financial guarantee that is
equal to a sealed engineer's estimate for all costs associated with the
construction of this project
Please submit this information at your earliest convenience. The approval of this conceptual
plan is contingent upon receiving this information and full compliance with the City of College
Station Drainage Policy and Design Standards manual. If you have any questions, feel free to
contact either of us at 764-3570.
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xc: Sabine McCully, SeniorPianner, City of College Station
"i~~~~hirley V o~,,,p~yelopmCl1t~rdinator, City of College Station
, Paul Kaspar,~uate Engineer, City of College Station
Mark Smith. Dir. ofPubli~ Works, City of College Station
KentLaza. City Engineer, City of College Station
Steve Homeyer, Assl to the City Engineer, City of College Station
Linda Huff. Development Engineering Division Manager, City of Bryan
Lisa Hage~ Development Engineer, City of Bryan
Greg Taggart, Municipal Development GroUp
Carter Creek Relocation Project D.P. File
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RECEIVED SEP 0 9 1997
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P. O. BOX 1000 . BRYAN, TEXAS 77B05 . (409) 361 -3600
September 2, 1997
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Mr. Mike Davis
Riverview, Inc.
4002 Aspen
Bryan, Texas 7780 I
RE: Carter Creek Relocation Project
Dear Mr. Davis:
We have completed the review of the FEMA submittal prepared for the Carter Creek Relocation Project and
have several concerns.
. The long-term maintenance of the channel will need to be provided by the City, and therefore concrete lining
along with access for maintenance equipment wm be required. The developers will need to provide short-
term maintenance by way of a bond or cash equivalent to the cost of the initial 1 0 to 15 years.
. Additional easement for bikelhike type paths willneed to :be provided along both sides of the (~hannel.
'. . I:. - An' analysis will need to be performed to better predict th~:amountof siltatiop, which can br e:q>ected.
. We.have concerns.with the proposed alignment~t.the Upstream end hi relation'to the existing creek. The
propose4.alignment begins just beyond an area mthe creek where a,900 bend',occurs. We believe that the
creek will eventually tlypass the channel at this90o\p:nd. In additioP, the weir ~d drop structure on the
north end of the project are of concern. especially with, ~ to siltatioIlPCCurring upstream and outside
th,.e property owned by this group. ; '" .. .
. Finally, we require that the City of College Station approve this proposal and that the City Limit relocations
be performed prior to any submittals. We are in receipt of City of College Station's letter dutedAugust 27,
1997 where their concerns were addressed.
If you have any questions, please call me at 361-3842.
~ JLtLs 4H-
Linda Grubbs H~ P.E.
Development Engineering
Division Manag~ '
Co:
Lisa Hagerman. Development Engineer
Tom Coyle, Director of Development Services.
Rick Conner, Director of Public Works
Kent Laza. City Engineer, City'of College Station
lane K.ee, City PlaIiner, City of College Station
File
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. t
DATE:
November 13, 1997
TO:
FROM:
RE:
Planning & Zoning CommissioQ" \) .
Gustavo Roman, Staff PlannerT"~S-
Zoning Ordinance amendments modifying the composition of ZBA to
include an engineer for drainage variance hearings and removal of the
certified mail requirement from the notification section of the Ordinance.
At the joint P&ZlCouncil meeting of October 2, 1997, modifications to the drainage
ordinance were discussed. One of those amendments, requiring notice of approval or
disapproval of a development permit sixty (60) working days after receipt of the
developer's proposal was heard by Council on November 13, 1997. Additionally, at the
October 23, 1997 City Council.. meeting, staff was directed to modify the existing
ordinance to require the presence of at least on licensed engineer on the Zoning Board
of Adjustments. This will achieve the goal of having one member with an engineering
background present to hear drain~ge variance requests without the necessity of
creating and managing a Drainage Variance Board.
The first ordinance amendment would require that at .Ieast one member of the Zoning
Board of Adjustments have an engiQeering background whenever appeal variances to
the drainage ordinance are presented to the Board and to having two of the four
alterhate members of the Board be liicensed engineers in the State of Texas.
The remaining ordinance amendments are related to changing the current requirement
of "notification by certified mail' to! "notification by depositing the notification in the
municipality, properly addressed. wifh postage paid, in the United States Mail'. This
change is recommended to reduce the cost related to the notification process, as well
as giving City Staff the option of notifying by certified, registered or regular mail those
property owners within 200' of the! property for which notification is required. This
amendment will bring the City of ~ollege. Station Zoning Ordinance in line with the
Texas Local Government Code requirements for notification.
"o"stffrpt"97-820. doc"
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