1984-043NO
AN ORDINANCE AMENDING APPENDIX A, DENTON DEVELOPMENT CODE OF THE
CODE OF ORDINANCES OF THE CITY OF DENTON BY CHANGING THE PERMIS-
SIBLE WATER SPREAD DESIGN STANDARDS FOR CERTAIN TYPE STREETS,
REPEALING ALL ORDINANCES IN CONFICT HEREWITH, AND PROVIDING FOR
AN EFFECTIVE DATE
THE COUNCIL OF THE CITY OF DENTON, HEREBY ORDAINS
SECTION I
That Appendix A, The Denton Development Code, Article III,
Chapter IV, Article 4 15, paragraph (B), subparagraphs (3) and
(4) of the Code of Ordinances of the City of Denton are hereby
amended to read as follows
(3) Water spread limit
Street
Classification
Expressway
Major Thoroughfare
(divided)
Major Thoroughfare
(undivided)
Collector Street
Residential Street
Pipe Systems and Inlets
Permissible
Water Spread
10-year storm-1 traffic lane
may be closed
10-year storm-1 traffic lane
must remain open each direction
10-year storm-2 traffic lanes
must remain open
10-year storm-1 traffic lane
must remain open
10-year storm-Water flow must
not exceed 2 inches above curb
10-year storm-Hydraulic grade
shall be 2 feet below top of
curb
The permissible water spreads are based upon the initial
storm frequency (10-year), but consideration must be
given to street conveyance of the major storm (100-year)
and possible flooding All streets shall be capable of
conveying a major storm without water encroaching into
adjacent buildings Therefore, the maximum spread limit
in streets for a major storm shall be the building
lines This requirement of utilizing the streets to
convey the major storm runoff may require increasing the
capacity of the enclosed drainage system
(4) Street cross flow Allowable depths of flow across
street intersections for initial frequency storms
(10-year) are established as follows
Street Intersection
Expressway
Major Thoroughfare
(divided and undivided)
Collector Street
(one valley crossing)
Residential Street
(one valley crossing)
Cross Flow DeAth
None
None
20 cfs
20 cfs
SECTION II
All ordinances or parts of ordinances in force when the
provisions of this ordinance become effective which are
inconsistent or in conflict with the terms or provisions
contained in this ordinance are hereby repealed to the extent of
any such conflict
SECTION III
That this ordinance shall become effective immediately after
its passage and approval /
PASSED AND APPROVED this the fQ/~day of April, 1984
Ize" i
CI Y OF ~ENTON, TEXAS
ATTEST
CHARLUIETh ALLEN,
CITY OF DENTON, TEXAS
APPROVED AS TO LEGAL FORM
C J TAYLOR, JR , CITY ATTORNEY
CITY OF DENTON, TEXAS
BY f