6 Wetland Permit/TH5/W78th
NOTICE OF PUBLIC HEARING
WETLAND ALTERATION PERMIT
City of Chanhassen
The Planning Commission will review this request on Wednesday, April 19 at 7:00 p.m.
in the City Hall Council Chambers located at 690 City Center Drive. The City of Chanhassen
(LGU) during the year 2000 hereby provides notice that the Minnesota Department of
Transportation has applied for a wetland alteration permit. This application proposes to impact
3.16 acres of as part of the TH. 5 improvements. The proposed impact is regulated by the State of
Minn...ofR'. W..t1Rnò {;onservation Act fWCAt
CITY OF
CBANHASSEN
10 Gty Centtr Drivt, PO Box 147
Ch.nh4sstn, MinntJota55317
Phon, 612.937.1900
Gmeral Fax 612.937.5739
Engineering Fax 612.937.9152
'ub/it Saftty Fax 612.934.2524
Wíb www.ci.ch.nhi1Jlm.mn.ul
"
-
MEMORANDUM
TO:
Scott Botcher, City Manager
Kate Aanenson, Community Development Director If Ik-
Phillip Elkin, Consultant HDR N\d.< r '
David Hempel, Assistant City Engineer \?§""
FROM:
DATE:
April 20, 2000
SUBJ:
Wetland Alteration Permit 99-1 - TH 5 - MnDOT
BACKGROUND
The Minnesota Department of Transportation has proposed a roadway
construction project on TH 5 extending approximately two miles from TH 41 to
CSAH 17 in the City of Chanhassen. While this project has been in design for
many years, the final wetland impacts have just recently been determined.
This project will impact II separate basins throughout the project, for a total of
3.16 acres of wetland (see exhibit I). Most of these wetlands are small areas (less
than I acre) along the roadside which are connected to the highway ditch system.
However, there are 1.38 acres of wetland impacts to DNR protected waters 5, 6,
10 and II.
MITIGATION
Mitigation of wetland impacts shall be at a 2:1 replacement ratio. However, the
DNR protected waters must be mitigated at a 4: I ratio.
MnDOT along with the City of Chanhassen' s Water Resources Coordinator
attempted to find replacement sites within the project corridor. Five sites were
-
11
,;i~.c;;:,. ::
.::~ ,.~t: ~. ,.... .
.' ., ~~.".
~ ~.~-
~: ~ ' -;:. ~ .==
~. .;.: i(';.'
!- .'C;\~,,,,~.
, -~
-¡ '---
c1 ''¿
;", i tt:II~3;-'-
J '¡..'--- '
L 3=:,;;r,
't.\... ,~
,~ -
:(P~
,., ",. 'I':
. ... ~,'\, " \\\
UL'
v z",
~ ~~
en ......
ctJ __ ~
<:.
-rc 11.-
... -,
Zè;
~
¡ .
,..
- "
:.¡
,~..
~!r;::::'\~ ; ~;ç
"\..0-"': . ..--
~~'<:r'
"
ì/
-j--
¡
~l¡·S':":
~.~...
~.!
<.
.
@
"ACIEJ WEI1.NII
~=-
__.. H-<:'¡>
;NI. 'i:'·.. i:
"
ÞARSONS
"'''' --"
""-leMa. I...
a' \. .~', .~;....
¡. i1:¡¡~
-~S"''''''''·
'%,\ .,.... ~ 'au;
S=]~·:.:
(S)
d
z
o
z
o
0..
~
.
!:i
~ v'~/-
'-- ,,:~:.j
~.;
_"i.~~ ::.~..:
,-:....:7·:~~
" ::'. l"i ,:,..
'>wC
C\
cg~
o
z
o
0..
'.~~
/"
I_~ ~,-...
~¡ .._'~~!~J
... ~ ........... ~ ..... .
\~Þ- ~ ~;
~,~ .:.v~:~~'t wl '.'>.~ =~
·'8 ,,~~ g:.: ;~
c:: ; ~"_
, E
~~'-:";. .......
5i,~~"'¡ ~i;\--:'
, ~,J 'So 't. C
,
""r= i'.. ...:o~ "",'
c!~æ ~
\~\c" cr ~/' J11' c;~ þ~
. æ........
.t.. "'-I" ~ ~~.
v ¡I,)':;":, f: ....---.;..
tlts·~ i·..·. J
\.--:-., /
\.;J..A .ì'-~
. ~'o". "'11; ! :::,~
~ -(ø :,:;::17." 7$
. - \oIn" ..:1
" ,~. oe, -
~...~ ';,:: ,;;'1,
":. ~ \ --..,;
't.:r.. ?J. 1..:1 ,':-;........1-
'/ "'J ~ 1 . '., gl
.1. -:::\
\ fo,"-/..
O i; i: ~_ .:..~,~
. !æ ~e /.......~ _~ . ~... ~
Z, O-~~..... Et '\~oJ¡,~'"
o 12 z .' ~ "'-
Z '..¡ ~.. ':,;'::". :-..¡..;.; ,
- . ' '0;..... ...... ~'. )..
o iš Q/ ~ § - - : '~ ..-
0..' /Z. ?,..~ :~.~
f'.... . !O~Å ~. ~\-=. t ~\.~...
. '-_~__.¡a... ~~~~~um_'\ "\"')..,
" /d,<!-> ,:; "';', ,
'7~\ §/ -~$ ~ ~~ ~\ >\
I' '-;1,' "'-, - , ".>.\''>\
r:::;:O ~,.-. ";'-' .~\'<' \
~ ~¡ .,. 0/. .'" "'å)'
:;! ~i ...~.. 8 ? ~ __,/ '
--~. .~/' -~\;~".. .:/' .\,;!~ .,,¡'; ';;..:,
-~C"t'-/ '<f!¡.-..,.~' k'_..... ~V'
'CI .' 'f~ ~ =!c,jc~~"'3;::.;i¡ ,:1":"r.:=
i ~ -.. \ ..
----:::;-:~-.-:.:-:-..-.,.-.. ::'-!..
,~ N,... '6 ;,\
.Io-~ i= !
~! = ~,
1'51· 1=
;:: ....
-;\,.:,' f
~~~\.. ~,~ W. ~\.. '"
~ ,......
, ...,
~- .
~ ....-.;;;- ---; "
/ ~ ___ ,1'::'..1 i':"
r ...:.. , _
'~.' 11:: ~:
",
>1
:.-........ ,
.,
I'
l/
,
~\
...\
",_.~-
""-'. -_:..
\'" ,
¡; :
;
I
1
I . 'tf~ ¡
l' .1!1.
PO' ......_
~1. ~-~
!
@/==
jf: .
~Iã
'"
5~
.
¡
~,-
\~
.\ \
i\ ~
/'\ ';¿\
. '~'~....\ ),.
tr..;:.< ~\ \
~\ \
,
\
\ .
\~':."(..
:r:
¡...:
o
z
o
ðóì
0..
,
I
,
I
C:ój
o
z
o
z
o
a.
~
-
.
'i
a
1-,
., --=::-~----
-0
V- 1
V, . . _ .._.---,-_._
~¡ Cl ·C.' 06 !
~i ~ I
7.¡
à;
i
i
<;
i::
:=:;!
<: ~;
'=J"" .,... £:
uj·r n:JJNI.': C ;:..
:;;'>-'!"''J; snJ:!~J
........... ~ < 2:
:-.-... ~ i t: _
<I .!yt::dnnJ.
. :>. '"
~ . I
"'I '
~y ~.."
,-t~-/'
<..~, j .+ i
...../ ,." r:.....
z ,~
~.'"
~J
~
0:1
"¡
/
/
Minnesota Department of Transportation
SP 1002-61 T.H.5 CHANHASSEN, MN
WETLAND AND POND
LOCATIONS Figure
TdJ
"
J
~
-.
CONSTRUCTION LIMITS
#2
'-
0.18 ACRES
ffi,. x \32' CMP
.uS-
_ _,.~___ ¡,.o:;'.;:.~ .--
liS
o
" '
"
-~
"
>
--
----,-~ -.. --
-.', /"
_0'. --.
---.----
,
----------------------- -------------
TH 5 EB
CONSTRUCTION LIMITS
WETLAND ENCROACHMENT
X.XX IMPACTED ACRES
ÞJU:¡SDNS
...-
__lot... lno.
"
;"
Ak
Minnesota Department of Transportation
SP 1002-61 T.H.5, CHANHASSEN, MN
WETLANDS 1,2
Figurë'2 \
'00 FT
W.78th ST.
EB1
W.78th ST. \
\
\
\
\
\
\
\
\
I
I
(
,
,
--
---
---
--
~
,.".'1
' ""
..,
'\,
,
,
,
,
I
!
I
I
I
50341
50361
1
I
1
1
'1
I
I
l_
CONSTRUCT! ON
TLAND #2 0.70 ACRES
TH 5 WB
~ *
-- ---
5044
5040
..
16
870
5056
5028
-- --- .
. -.. ... ..-
---
---
----- ~ >
CON:T~UC~IO~BL!M!TS~-----~~~~~~;;~----~
. BLVD. NB \
WETLAND
. ENCROACHMENT CENTURY
BLVD. SB
X.XX IMPACTED ACRES
ÞAASONS Minnesota Department of Transportation
.......-
_,.....Ino. SP 1002~1 T.H.5 ,CHANHASSEN, MN
2'" x::!é -
~-
0"
1
I
I
r
I
OTHER
WETLAND #2, POND #1
Figure 3
k .;z/
III
,"1.0
.154.7
....2.0
"
"
"
"
"
"
"
"""" rCONS TRUCT ION
"
"
,
"
"
"
"
"
"
5110 ""
"
"
"
Ll M ITS
5T.
-
'-
5083
5084
TLAND #3
5 ACRES
" 509
35
110
5098
TH 5 WB
I
509S
: ¡ '-'
5102
..
10....-
.~._--._"--.-
Ii
5113
-
8' . >-.., ~~D' '.
ø :( 1.0-7--:::1
- -- .
-..~
115
0.04 ACRES
"
Ä
rH
~
'"
-
"
WETLAND #4
0.01 ACRES WETLAND #4
CONSTRUCTION LIMITS
I
~
WETLAND
ENCROACHMENT
~5 5t '~O FT
x.xx
IMPACTED ACRES
...-
"..lot... Inc.
Minnesota Department of Transportation
SP 1002-61 T.H.5' CHANHASSEN, MN
WETLANDS 3-4, POND ...#3
Figure ~
.£73
ÞARSONS
,"
i'
,
I
""
""
W.78th ST.
'00 FT
CONSTRUCTION LIMITS
I
5090
5166
TH 5 WB ~
~
POND #3
Nwt. . 952.0
HWL . 95<4.0
BTN .9<46.0
o
POND
NO. 3
----.
---
5167
.- ~
890
--'-
'"
--=
-'--
-----
O. 07 ACRE~_ J,,~~/-/-"
t --
.-"
"-
TLAND #4
TH 5 EB
CONSTRUCTION
.
WETLAND
ENCROACHMENT
x.xx
IMPACTED ACRES
.....-
....1..... II'IC.
Minnesota Department of Transportation
SP 1002-61 T.H.5 CHANHASSEN, MN
WETlAND 4, POND- 3
Figure 5
PARSONS
L 2~
~
WETLAND
ENCROACHMENT
)I
x.xx
IMPACTED ACRES
CONSTRUCTION LIMITS
~
#5
100 FT
I
5227'"
/ 'W1 78 t h
/ '
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
"
""'" -..
'~'T".. '~I ~.
-'"'7- " ....:::..---
'....1.t.: ..-
~
,
~
,
,
,
,
,
~
,
,
, '"
''\.I'~<
"VI'.I.J"/~
,v(':/('"
," '"
,C',...(,.,
'\.""I'/:,,""~
",-/"¡¢:~,tp,..
,'V,:J
'\.r'I'Ô'(
" '\.,:~,/"'ð
" ".J'
ST.', '\.
,
,
" ~,
'\ \i\.
'!. \"
~\ \. ", ..~."
.~ .~.~
v' ..
\ \
.).
5280
~
~
5236
.::¡ .".....:. ~..::
,
. ~
:rH 5
,
,
5250
910
--
910
-----
TH 5 EB ---J--- --------
CONSTRUCTION LIMITS ----"
ÞARSONS Minnesota Department of Transportation WETLANDS 5 - 6, POND- .11
....-
.....'.....IM. SP 1002-61 T.H.5 CHANHASSEN. MN Figure €
ACRES
¡:;:, .:. D
I
WETLAND
o 25 50
~
~
"..
~
CONSTRUCTION LIMITS~
W.78th ST. _\
------
...,
0.18
---
----
530
.-
"
"
"
"
"
"
--...-'
..----
--
---
---
. 01 Aça~-5---~
I
I
I
.
I
---.
,,"
"
,,"
.0=:______________
0.07 ACRES
a
TH 5 WB :'.
,.: . -'': '-- .¥. '~':'..,' ..,.:..
'ò
'25
'25
"
5294
----------
------
.-'
-'-
~-"-~
0.09 ACRES'
---
---
/-//~eONS TRUe T ION LI M ITS
H 5 EB
~ WETLAND #8
~
'"
~
WETLAND
ENCROACHMENT
x.xx
IMPACTED ACRES
ÞARSONS Minnesota Department of Transportation
Irt..-AecNIon
.....,..... 'nc. SP 1002-61 T.H.5· CHANHASSEN, MN
WETLANDS 7, 8, AN[L9
Figure 7
--
r,/? Z t£
I
0.19
,
{;"\.
50 100 FT
*
---'
~
~'
--
--
---
ST.
W.78th
EB3
L:=CONSTRUCTION
LIMITS
W.78th
--
OND
NO. 6
5379
TH
950
5386
"'~~.,.'/.':: ----- ----
~ __ a _~~~.: _~~':~_~:~~E ____
950
;
':1.:;i5¡:
:;-:; ;0-"
5-:3ãã-----
~~
--.-
-.-------------
------~...~'i.__
CONSTRUCTION
L I M ITS
WETLAND
ENCROACHMENT
TH 5 EB
15" RC~
:..!'~:::T'5 =~:~:.'
0.03
ACRES
=!.!5L::'~' =A=;(,
IMPACTED ACRES
Minnesota Department of Transportation
SP 1002~1 T.H.5 CHANHASSEN, MN
WETLAND #11
WETLANDS 10 - 11, POND--6
Figure 9
~2r
.......,..,...,
4aIlClCICl1... lno.
· ----------
- n___________..__,_..
S.P. 1002-61, T.R. 5, CHANHASSEN, MINNESOTA
WETLAND SUMMARY TABLE
WCA Wetland Impacts =
DNR Wetland Impacts =
Total WetlaÍ1d Impacts =
Acres Impacted =
Replacement Ratio =
Total Mitigated Acres =
Acres Impacted =
Replacement Ratio =
Total Mitigated Acres =
1.78 acres
1.38 acres
3.16 acres
DNR Wetland Mitigation
1.38 acres
4:1
5.52 acres
WCA Wetland Mitigation
1. 78 acres
2:1
3.56 acres
WCA Wetland Mitigation Credit Distribution
Public Value Credits = 1.78 acres
New Wetland Credits = 1.78 acres
Total Mitigated Acres = 3.56 acres
~
On-Site WCA Mitigation
On-Site Water Quality Treatment Ponds = 2.26 acres
Credit Ratio = 75%
Public Value Credits (Produced) = 1.70 acres
Public Value Credits (Required) =
Public Value Credits (Produced) =
Public Value Credits (Withdrawal) =
1. 78 acres
1.70 acres
0.08 acres
VVUhdrawalSuDlDlary
Type of VVithdrawal Acres Site
DNR Wetland Credit 5.52 Mitchell Lake - TH 5, S.P. 1002-44
New Wetland Credit 1.78 Rice LakelWilke Easement - TH 101 & TH 13
Public Value Credit 0.08 WetlandG-TH3,S.P.1928-35
Planning Commission Meeting - April 19, 2000
PUBLIC HEARING:
MINNESOTA DEPARTMENT OF TRANSPORTATION HAS APPLIED FOR A
WETLAND ALTERATION PERMIT. THIS APPLICATION PROPOSES TO IMPACT
3.16 ACRES AS PART OF THE TH 5 IMPROVEMENTS. THE PROPOSED IMPACT IS
REGULATED BY THE STATE OF MINNESOTA'S WETLAND CONSERVATION
ACT (WCA).
Dave Hempel presented the staff report on this item.
Peterson: Any questions of Dave? Thank you. Motion and a second for a public hearing.
Kind moved, BIackowiak seconded to open the public hearing. The public hearing was
opened.
Peterson: This item is open for a public hearing. Anyone wishing to address the commission
please come forward and state your name and address please.
Kind moved, Sidney seconded to close the public hearing. The public hearing was closed.
Peterson: Public hearing closed. Commissioner comments. Anything?
Kind: I think the staffreport looks complete to me.
Peterson: Ditto. Motion please.
Kind: I move the Planning Commission recommends the City Council approve Wetland
Alteration Permit #99-1 subject to the following conditions 1 and 2.
Burton: Second.
Peterson: Any discussion?
Kind moved, Burton seconded that the Planning Commission recommends that the City
Council approve Wetland Alteration Permit #99-1 subject to the following conditions:
1. Wetland Conservation Act and the City of Chanhassen Surface Water Management Plan
requirements.
2. The applicant shall develop a sediment and erosion control plan in accordance with the
City's Best Management Practice Handbook. Type ill erosion control fencing will be
required around the existing wetlands.
All voted in favor and the motion carried.