ORD NO 15-2024 t,
CITY OF VAN BUREN,ARKANSAS
ORDINANCE NO. (5 -2024
BE IT ENACTED BY THE CITY COUNCIL,FOR THE CITY OF VAN BUREN,
ARKANSAS,AN ORDINANCE TO BE ENTITLED:
AN ORDINANCE ADOPTING AN AMENDMENT TO THE MINIMUM
DRAINAGE STANDARDS FOR THE CITY OF VAN BUREN,ARKANSAS.
WHEREAS, the City of Van Buren,Arkansas, adopted an Ordinance No.40-1980 to implement
minimum drainage standards which was amended by Ordinance No. 28-2023; and
WHEREAS, the purpose of the Ordinance is to protect the public as it applies to all storm
drainage facilities, whether an enclosed structure, pipe, open channel, ditch, or
stream; and
WHEREAS, there is now a need to amend the drainage standards to correct an error in Section
2.5 - System Discharge; and
WHEREAS, notice of a public hearing was duly published and a public hearing was conducted
by the Planning Commission on June 16, 2024, to consider the proposed
modification; and
WHEREAS, the amendment to the minimum drainage standards was recommended by a
majority vote of the entire Planning Commission.
NOW THEREFORE,BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY
OF VAN BUREN,ARKANSAS,THAT:
SECTION 1: Paragraph 2.5.A of the Minimum Drainage Standards is amended to read as
follows:
All storm sewer systems in new developments shall be adequate to contain the
design storm runoff to the discharge point or points at the down-stream property
line. The location(s) of point(s) of storm water discharge from the developed
property shall generally be the same as the pre-development discharge point.All
reasonable effort should be taken to ensure that storm water discharge rate and
velocity will be limited to the predevelopment discharge conditions in the 2, 10,50
and 100-year storm events for developments with property boundary areas greater
than one(1) acre,including future phases.
If the existing infrastructure downstream of the system discharge(s)lacks hydraulic
capacity to carry the peak 10-year flow, downstream improvements may be
required.
a
SECTION 2: The various provisions and parts of this Ordinance are hereby declared severable,
and,if any section or part of a section,or any provision or part of a provision herein,
is declared to be unconstitutional, inappropriate or invalid by a court of competent
jurisdiction, such holding shall not invalidate or affect the remainder of this
Ordinance and to the extent the provisions hereto are declared to be severable.
SECTION 3: Prior Ordinances or sections of ordinances in conflict with the provisions enacted
herein are repealed to the extent of the conflict.
IN WITNESS WHEREOF,the City of Van Bykep,Arkansas,by its City Council, did
pass, approve, and adopt, by a vote of 0 for and !� against, the foregoing Ordinance at its
regular meeting held on the 22nd day of July 2024.
G\evk Trews
City of Van Buren Joso P. urst
0 M or
0.� �m
racounty,P<
ac
ATTESTED: AS TO FORM:
Shawnna Reyn 1 Jac e
City Clerk/Treasurer City Attorney
NC,
��.v
a
4a
r
a
r r
r
irr J
i��►o
(City
of Vam Buren, Arkmsas
umimdCOMPRex
R
1003 Broadway o Van Buren, Arkansas 72956
VAN BUREN CITY COUNCIL ME,MORANDUM
TO: MAYOR JOE HURST AND CITY COUNCIL
FROM: WALLY BAILEY, PLANNING DM-CTOR
SUBJECT: DRAINAGE STANDARDS AMENDMENT—PARAGRAPH 2.5A
DATE: JULY 11,2024
The City Council adopted and approved Ordinance 28-2023 revising the minimum drainage
standards on September 2-5,2023.An error has been found in the recently adopted drainage
standards. i
3
Neal Morrison,P.E.made me aware of this error and suggested to me that we need to
amend the drainage standards (see attachments).As he states in his memorandum it is
impossible to limit the post development stormwater volume and it should refer to the flow
rate.
The error is in section 2.5 System Discharge.The amendment is to the third sentence of the f
paragraph.The correction to the sentence is as follows:
"All reasonable effort should be taken to ensure that storm water discharge vo ume-rate
and velocity will be Iimited to the predevelopment discharge conditions in the 2, 10,50 and
100-year storm events for developments with property boundary areas greater than one
(1) acre,including future phases."
The Planning Commission held a public hearing on this amendment at their July:3, 2024,
meeting.A majority.of the entire Planning Commission voted in favor of submitting this
amendment to the City Council for approval.
Please let me know if you have any questions.
.. i
Wally Dailey
From: Neal Morrison <ntmorrison@yahoo.com>
Sent: Wednesday; May 29,202-410:15 AM
To; Wally Bailey
cc., John.(Carstens
Subject: Minimum Drainage Standards
Attachments: VB Drainage Regulations Section.2.5:Revision 5-29'-24.pdf
Wally,
See attached. I just noticed'a pretty bad error in the,drainage standards. It is impossible to limit the post development
stormwater volume. It should say the flow rate.
I'm not sure how you should handle this,but 1 will do what I can to help. Sorry for the mistake.
Neal.
I
2A.0 N',ItLtl',Il di'aillllgO Channels (not relocated Or Cll',IllllCliZC(l) 11111Y he Used in new
develop lielits providing' (lie eliumicl will carry (lie A01111 111110l'i'LISCd in the Closigli
.1
morin without CrOSi011 IWOMOMS Zlild SLIMCiCllt I'MId 601'a 0lIC4001 (I') fi-CCIMIrd is
included in a drailinge easelliclit.
2.5 SYSTEM D.1Sf.l-lARGJ.7
2.5,A All storm sewer systems in new developments shall be adequate it) colitaill the
design StOrill 1111101T to the CHSCII.IrgC J)Oillt Or I)Oilll% al the dMkIll trestill property
mic. The incation(s) or 1)oilll(s) of, Storm Water discharge frolll the dcveloped..��-'.
property shall g-onerally be the sallic as (lie pre-Ein.-Clopliellf discharge Point I
reasonable efffid should be taken to CIISLIVC that S[01'111 water discharge*olui and
velocity hill be limited v)[lie predevelopmont discharge conditions In tile.2. 10.50
and I 00-year Slon)) events 1,61.(love lopluelit s with property boundary arells.greater
than one(I)acre, including 1111till-c phases.
ll'the existing infiras(RICILIM downstream ol'the system discharge(s)lack,%,hydratilic
capacity to can), (lie peak 10-mil. flow, downswealli improvements may be
required.
2.5,13 Hydrologic methods used in the design oNetention ponds shall conflirm to Section
3.). The Modified Rational IVICIllod play be used Ril.ponds where the(ribillaryarea
is
twenty(20) acres or less. For (ribittary Ilreas greater thair 20 acres. one ol'the
methods listed ill Section 3.1 shall he used.
2.5.0 II'detention ponds are used I0 Meet file IT(JUiI'CI)ICIIl% of Seclion 2.5.A then the
11611mving standards apply to tile detention pond:
I. Detention ponds in subdivisions containing two or more building lolssliall
be located on -.I platted lot and its use shall lie cletirly specified on the plat.
The lot will not be subiect to area and firontage requirements ol'the Zoning
Code, bit( shall be ol'a size sufficient to allow operation and maintenance
ol*(he pond within its boundary.
Detention ponds shall be designed to meet the objectives ol'Section 2.5.A
and provide a mininitim or(j) (not of'fireeboard above the peak I 00-year
water sill-fiace elevation.
3. Outlet sirticturcs shall be designed it)conlrol the outflow froill (lie pond ill
the design storms. Outlet structures may consist ol'box structures, pipes.
orifices, weirs or any combination thercol', All elements ol'the structure
I SM tie.shall be constructed from rehiffireed C011CIVEC. 11:11CIOSCC I ct I- q greater
than 4 flect in depth shall include permanent means of access 1'()r
maintenance such as steps and manholes. Steps shall be illade of steel
reinforced copolymer polypropylene.
Page 5 oN 7