HomeMy WebLinkAboutOrdinance No. 06-1687
THE CITY OF THE COLONY, TEXAS
ORDINANCE NO. 06- rip ~ 'l
AN ORDINANCE OF THE CITY OF THE COLONY, TEXAS
AMENDING ARTICLE VI, SECTION 6-131 OF THE CODE OF
ORDINANCES PROVIDING FOR THE ENGINEERING DESIGN
MANUAL AND STANDARD CONSTRUCTION BY AMENDING
SECTION 2.06, HYDRAULIC GRADIENT OF CONDUITS, BY
ADDING SUBSECTION 3(A) THROUGH 3(C) PROVIDING
CRITERIA FOR STARTING ELEVATIONS FOR RESIDENTIAL
STREETS AND ALLEYS WHEN LAKE LEWISVILLE IS
DOWNSTREAM OF THE PROPOSED STORM SEWER;
PROVIDING A SEVERABILITY CLAUSE; PROVIDING A
REPEALING CLAUSE; PROVIDING A SAVINGS CLAUSE; AND
PROVIDING AN EFFECTIVE DATE.
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF THE
COLONY, TEXAS:
SECTION 1. That Article VI, Section 6-131 of the Code of Ordinances
providing for the City of The Colony Engineering Design Manual be, and the same is,
hereby amended by amending Section 2.06, Hydraulic Gradient of Conduits, by adding
subsection 3(a) through 3(c) providing criteria for starting elevations for residential
streets and alleys when Lake Lewisville is downstream of the proposed storm sewer,
which shall read as follows:
"2.06 HYDRAULIC GRADIENT OF CONDUITS
3. When Lake Lewisville is downstream of the proposed storm
sewer, the following starting elevations at Lake Lewisville may
be used for residential streets and alleys when all of the
following criteria are met. Collectors, minor arterials and
principal arterials must use the starting water elevations
specified in items 1 and 2 above.
a. Using a starting elevation of 531.0 at Lake Lewisville the
hydraulic grade at the inlets shall be La-foot below the top
of curb for the lOa-year storm at the low point and for the
10-year storm for inlets on grade. The spread of water for
the 1 a-year storm shall not exceed top of curb for inlets on
grade and the lOa-year storm shall be contained within the
right-of-way.
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b. Using a starting elevation of 537.0 at Lake Lewisville the
hydraulic grade at the inlets shall be La-foot below the top
of curb for the 2-year storm at the low point and for inlets
on grade. The spread of water for the 2-year storm shall not
exceed top of curb for inlets on grade and the lOa-year
storm shall be contained within the right-of-way, including
the overflow at any low points.
c. The minimum finished floor of all structures shall be the
higher of 539.0 or 2-feet above the lOa-year storm
elevation and the top of curb for residential streets shall be
no lower than 538.0."
SECTION 2. If any section, subsection, paragraph, sentence, phrase or work in
this ordinance, or application thereof to any person or circumstance is held invalid by any
court of competent jurisdiction, such holding shall not affect the validity of the remaining
portions of this ordinance, and the City Council of the City of The Colony, Texas hereby
declares it would have enacted such remaining portions despite any such invalidity.
SECTION 3. That the repeal of any ordinance or any portion thereof by the
preceding sections shall not affect or impair any act done or right vested or accrued or
any proceeding, suit or prosecution had or commenced in any cause before such repeal
shall take effect; but every such act done, or right vested or accrued, or proceedings, suit
or prosecution had or commenced shall remain in full force and effect to all intents or
purposes as if such ordinance or part thereof so repealed shall remain in force.
SECTION 4. That this ordinance shall become effective immediately from and
after its passage and the publication of the caption, as the law and charter in such cases
provide.
PASSED AND APPROVED by the City Council of the City of The Colony,
Texas, this the 5th day of September, 2006.
~
. ;~ UJ~
Christie Wilson, City Secretary
APPROVED AS TO FORM:
R~~OmeY
(REH/cdb 9/1/06)
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