1977-11-29 CC Agenda Packet CITY OF MOUND
Mound, Minnesota
AGENDA
Mound City Council
November 29, 1977
Public Works Meeting
1. Public Works Funds
2. Financing - Ernie Clark
3. MSA Streets
4. Sewer Rates
5. Lake Area Ring Route
I.M. 77-200 Pg. 984-995
IM 77-194 Pg. 1093-1094
IM 77-195 Pg. 1084-1092
IM 77-204 Pg. 1082-1083.
.1095
11/28/77
CITY OF MOUND
Mound, Minnesota
November 15, 1977
INFORMATION MEMORANDUM NO. 77-194
TO:
FROM:
SUBJECT:
The Honorable Mayor and City Council
The City Manager
MSA Streets
Information Memorandum No. 77-144 discussed the possibility of going
to bond to do some MSA streets. Estimates on three streets were:
Three Points Boulevard
Bartlett Boulevard
Balance of Tuxedo Boulevard
$520,000.
300,000.
330,000.
The attached chart shows'estimated income from a construction project
of $520,000 with 25% assessed for 15 years at 8%.
Chart II shows the cost of $520,000 loan made at 6%. It also shows
estimated assessments and interest to be received from the Tuxedo Road
construction and the construction project made with the $520,000 loan.
From this, it appears that about 5 years after the loan is made,
$300,000 would be available for construction again.
This can be discussed at the November Public Works Meeting.
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15 Years @ 8%
Year Balance
1 115,000.00
2 107,333.34
3 94,300.02
4 82,331.18
5 67,237.14
6. 59,107.57
7. 50,243.35
8. 42,148.60
9. 34,772.60
10. 28,066.46
11~. 21,985.40
12. 15,329.78
13. 10,003.37
14. 6,168.76
15. 2,775.95
The chart
1.
2.
Assuming $520,000
Annual
Principal
CH_~R? I
Construction with
25% Assessed
Prepayments
Assessed
= $130,000.
-15,000.
$115,000.
Estimated Annual
Prepayment
Percent Dollars
7,666.66 15,000.00
7,666.66 (5%) 5,366.66
7,253.84 (5%) 4,715.00
6,860.93 (10%) 8,233.11
6,112.~6 (3%) 2,017.11
5,910.75 (5%) 2,955.47
5,582.59 (5%) 2,512.16
5,268.57 (5%) '2,107.43
4,967.51 (5%) 1,738.63
4,677.24 (5%) 1,403.32
4,397~08 (10%) 2,198.54
3,847.4~ (10%) 1,538.97
3,334.45 (5%) 500.16
3,084.38 (5%) 308.43
2,775.95
Annual
Interest
11.500.00
8.586.66
7.544.00
6.586.49
5.378.94
4.728.76
4,019.46
3,371.88
2,781.80
2,245.31
1,758.83
1,231.18
800.26
493.50
222.07
Total Ann.
Payments
Accumulation
Payment to Date
34,166.66 34,166.66
21,619.98 55,786.65
19,512.84 75,299.49
21,680.53 96,980.02
13,508.54 110,488.12
13,594.98 124,083.10
12,114.21 136,197.31
10,747.88 146,945.18
9,487.94 156,433.13
8,326.37 164,759.50
8,354.45 173,113.95
6,617.59 179,731.54
4,634.87 184,366.41
3,886.31 188,252.72
2,998.02 191,250.74
CHART II
below shows:
Principal and interest payments on $520,000 @"6%. Repaid $35,000 per
year for 14 years and $30,000 on the 15th year.
The income each year will be $90,000 in MSA funds plus assessments from
the 1978 Tuxedo project and any project accomplished with the $520,000
loan based on 25% of cost to be assessed. The amount assessed on Tuxedo
is assumed to equal the assessment of the $520,000 loan.~
Borrow $520,000 @ 6% - 15 Years
Year. Principal Interest Total
1979 34,666. 31,200. 66,200.
1980 35,000. 29,100. 64,100.
1981 35,000. 27,000. 62,000.
1982 35,000. 24,900. 59,900.
1983 35,000. 22,800. 57,800.
1984 35,000. 20,700. 55,700.
1985 35,000. 18,600. 53,600.
1986 35,000. -16,500. 51,500.
1987 ,35,000. 14,400. '44,400.
1988 35,000. 12,300. 47,300.
1989 35,000. 10,200. 45,200.
1990 35,000. 8,100. 43,100.
1991 35,000. 6,000. 41,000.
1992 35,000. 3,900. 38,900.
1993 30,000. 1,800. 31,800.
1994
1995
Tuxedo Three Pts. Bal. of Total.
Assess. Assess. State Aid Year To Date
34,160.
21,600.
19,500.
21,680.
13,508.
13,595.
12,115.
10,747.
9,488.
8,326.
8,354.
6,617.
4,634.
3,886.
2,998.
34.160.
21~600.
19~500.
21.680.
13.508.
13.595.
12.115.
10.747.
9.488.
8,326.
8,354.
6,617.
4,634.
3,886.
2,998.
23,800. 23,800.
25,900. 60,060. 83,860.
28,000. 83,760. 167,620.
30,100. 71,200. 238,820.
32,200. - 73,380. 312,200.
34,300. 69,488. 381,688.
36,400. 63,~03. 445,191.
38.500 64,210. 509,401.
40,600. 63,462. 572,863.
42,700. 62,935. 635,798.
44,800. 62,614. 698,412.
46,900. 63,580. 761,992.
49,000. 64,271. 826,263.
51,100. 62,351. 888,614.
58,200. 66,720. 955,334.
90,000. 96,884.1052,218.
90,000. 92r998 1145~216,
lOO
11/28
CITY OF MOUND
Mound, Minnesota
November 15, 1977
INFORMATION MEMORANDUM NO. 77-195
TO:
FROM:
SUBJECT:
The Honorable Mayor and City Council
The City Manager
Sewer Rates
The Council has been discussing sewer rates and their possible increase.
Attached is a copy of the sewer rates charged by some of the neighboring
Communities. For comparison of rates, we find the following:
1st 5000 Gal.
(Per M Gal.)
Next 5000 Gal.
(Per M Gal.)
Next 3000 Gal.
(Per M Gal.)
Ail over
13,000 Gal.
(Per M Gal.)
Mound 1.00 1.00 .70 .70
Excelsior .846¢ .846¢ .846¢ .75
Spring Park 1.00 .85 .85 .85
Minnetonka .80 .80 .80 .80
Wayzata .80 .80 .80 .80
Flat Rates:
Orono
Minnetrista
22.75 per quarter
25.00 per quarter
The 1978 Budget projects a need for an additional $27,510 of income.
Presently there are about 2,800 accounts. If the number of units in multi-
ple dwellings are added, there are approximately 3,368 units using sewer
service. Therefore, a $1 increase in the minimum charge brings in $3,368
or $13,672 per year. Based on the January-March 1977 water usage, there
was 14,667,000 gallons used over the minimums;so if the amount over the
minimuns [s increased 10¢ each 1,000 gallons, it appears that $1,466.70
per quarter would be realized or $5,866.80 per yeam. (See attached chart)
Present rates are: $10.00 for 1st 10,000 gallons
.70 for each addition 1,000 gallons.
L~onard L. Kopp' J V
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CITY OF MOU~ID
Mound, Minnesota
Sept. 26, 1977
TO:
FROM:
SUBJECT:
Leonard L. Kopp, City Manager
Don Levens, Planner
Water & Sewer Rates
Mound & adjacent communities
· The data below is the existing water and sewer rates for the City of Mound
and adjacent communities.
MOUND
$6.00 for 10,000 gals or less
.40 next 20,000 gals
V. 2~5 iext 20,000 gals
ext 50,000 gals
ext 100,O00 gals
?10.00 for 1st 10~000 gals
,7~ for each add'l 1,O00 gals
EXCELSIOR
WAYZATA
Residential
Multiple Dwelling
Commercial
(more than 1 user)
SPRING PARK
$11.00 for 1st 13,O00 gals
· 75 each add'l 1,OO0 gals
$10.O0 1st 10,000 gals
.65 next 10,O00 gals
.50 next 40,000 gals
.35 excess of above
$6.65 1st 10,000 gals
· 65 next 10,000 gals
.50 next 40,000 gals
· 35 excess of above
$8.00 1st 10,000 gals
· 65 next 10,000 gals
.50 next 40,000 gals
· 35 excess of above
$5.00 - 5,000 gal Minimum
.60 over 5,000 gals
$11.10 1st 13,000 gals
· 75 each 1,000 gals
Apartments $11.60 per unit
Residential usage based on
Winter qtr. reading.
Commercial & Industrial based
on actual readi~n~ls
$8.00 1st 10,000 gals
.80 each add'l 1,OOO gals
$5.35 per unit 10,000 gals min.
.80 each add'l 1,000 gals
(More than 1 unit per meter)
$4.00 per unit Minimum
.80 each 1,000 gals over
10,OOO gallons
$5.00 for 5,000 gal
.85 over 5,000 gals
Multiple Dwelling, Commercial
& Industrial based on current
meter reading.
SUBJECT:
ORONO
Water & Sewer Rates - Mound & Adjacent Communities
$7.50 1st 10,000 gals
.75 next 20,000 gals
.60 next 20,000 gals
.50 next 50,000 gals
.40 excess of above
$22.75 - Flat rate
(above increased from $12.00)
DL/dd
Don Levens
Planner
GNSC~ $o tlIO ¢~I
Xq
SSA~ SNOR£L. tNI~' ~OtJLE:VARI:3,
June 12, 1975
ADDRESS REPLY TO
.Below are the current rates for water and sewer in the City of
Mound:
Minimum Charge Per Quarter - Water
For 10,000 gallons or'less
For next 20,000 gallons
For next 20:000 gallons '~
For next~O~O00 gallons
For next ~00~000 gallons '~
.25
.35
.20
.15
14inimum Charge per Quarter - Sewer
For 10~000 gallons
For each additional 1,000 gallons
$!0.00
.70
Water and Sewer Department
City of Mound
SLrBUqqB~[ S:WEZQ I~TES
APP~ VALLE~
Residential
Residential
Duplex
Mobile H0m~s
Apartm~_uts
BLDOM~;GTON
Residential
Commercial
Mobile Hodes
Apartments
BROOKLYN C~NTER
Residential
BROOKT.YN PAdeX
Residential
Commercial
CHASY~
Residential
Ccmucrcial
Industrial
C OL~.~IA HEIGHTS
COON ~P~S
Residential
Apartments
COTTAGE GPDVE
CRYSTAL
9.00 minimum for 20~000 gallons
.20 per M each 1,000 gallons over m~uimum
$ 9.5Oflat rate
19.OOflat rate
9.5Of let rate
9.50 flat rate
$ 9.75 flat rate
.-45 per M
6.00 flat rate
8.25 flat rate
8.75 flat rate
$ 9.00 f/at rate
10.50 miu~ mum for 25, 000 gallons
.40 per H each 1, OOO gallons over
$ 4.00
.60 per M
4.00 m~ui~um
25.00 minimum
$ 9.00 minimum
12.OO m~ximum
.40 per 750 gallons up to the maw~mum charge
$ 8'00 flat rate
5.00 f/at rate
$ 6.00minimumfor 15, O00 gallons
.40 per M each 1,OO0 gallons over m~n~mum
$ .23 per M
Residential
Duplex
Apartmauts
Commercial
FALC~ HEIGHTS
Residential
Ail others
HOPKINS
~H~ER GNSVE
Residential
Apartments
Mobile Homes
All others
LONG I~EE
MEDINA
MENDO~ ~IG~S
7.50 fla~ ra~
20.00 flat rate .-
10.00 flat rate $4.50 each !mit over 4
.2§ per H.
$-j.o. Oo :Daf, rat,.
' :Lt.60 for 2o, ooo.gan-o,s '
.58. pex"'~ each 1,000 gallons over ~d~mum
'60 per H
$ 9.60 flat rate
9.60 flat rate
9.60 flat rate
4.80 minimum for lO,O00 gall_ons
$ 6.00 min'i~m
.75 per M
$12.00 flat rate
1.20 per M
$ 9.35 flat rate for 3/4" meter
13.05 l~lat rate for 1" meter
$ 9.00 m~um
.60 per M
NEW' HOPE
,/'
N EWPOET
~ ORONO
PT.Y~U'I~
Co~'~ez'cia~
ST. IOUIS PARK
Residential
Commercial
~YZATA
$ 2.00 minimum for 1~000 gallons
.~ per M each 1, O00 g~_lons over minim~
$ 9.00 flat rate
$12.16 flat rate
~t rate
per N
$ 9.50 flat ra~,
9.50 minimum
.40 per M over m~mum
$13.50 fiat rate
$ 5.00 mindm~m for 5,000 gallons
.85 per M each 1,000 gallons over n~uimum
$ 8.00 m~mum
'.80 per M over
11/29
CITY OF MOUND
Mound, Minnesota
November 22, 1977
INFORMATION MEMORANDUM NO. 77-204
TO:
FROM:
SUBJECT:
The Honorable Mayor and City Council
The City Manager
Lake Area Ring Route
Orono has started work on their ring route and has sent Mound a
copy of their preliminary report.
The report and maps are on file if the Council wishes to read
them. Attached is a copy of the map showing Orono's use.
dod 0,'61
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CITY OF MOUND
Mound, Minnesota
November 29, 1977
COUNCIL MEMORANDUM NO. 77-334
TO:
FROM:
SUBJECT:
The Honorable Mayor and City Council
The City Manager
Lynwood-Grandview Storm Drainage Project
The last easement on this project was received today.
Even though the 60 days has expired since taking the bids, the
Contractor has agreed to do the job as bid providing completion
date is extended to July 1, 1978.
CITY OF 5~OUND
Mound, -Minnesota
AGENDA
CM 77-333
CM 77-341
Mound City Council
November 29, 1977
City Hall
7:30 P.M.
Minutes
Public Hearing - Beer Licenses - 5098 Three Points Boulevard Pg. 821
Park Commission Recommendations Pg. 1078-1080
Comments and Suggestions by Citizens Present (2 Minute Limit)
Information Memorandum/Miscellaneous Pg. 1070-1077
Committee Reports
Pg. 1081
CITY OF MOUND
Mound, Minnesota
November 23, 1977
COUNCIL MEMORANDUM NO. 77-341
TO:
FROM:
SUBJECT:
The Honorable Mayor and City Council
The City Manager
Park Commission Recommendations
Attached is a copy of the Park Commission minutes. Two items require
Council action:
I. Dock Location Map
The Dock Ordinance requires the Park Commission once each year be-
tween July 1 and December 1 to review the Dock Location map and to
refer any recommended changes to the Council on or before January 15.
The Park Commission recommends the following for 1977-78:
A. At the Arbor Lane access, the number of docks be reduced
from four to three.
B. That no stairways be allowed on Woodland Point for access
to docks.
II Transfer of Bikeway Funds
Because of the County's changing our minds when they decided to do
the widening of Highway 110, Highland Boulevard to County Road 44,
no further bikeways were started in 1977. Therefore, $12,000 in
HUD funds for bikeways is unexpended. The Planner has worked it
out with the County that the $12,000 can be used for Housing reha-
bilitation. The attached report shows application for $9,084 in
rehabilitation requests more than we have funds. The Park Commis-
sion recommended that the $12,000 be transferred to the Housing
Rehabilitation Program.
The Housing Rehabilitation Program will aid us in the Housing
deficit that the Metro Council pointed out prior to authorizing
the third year funding for HUD.
The transfer of the $12,000 from Bikeways to Housing Rehabilitation
is recommended.
ON I. AKE~ NIlNNE'TON}<A INDIAN BURIAl., MOUN~3g
5341 MAYWOOD ROAD TELEPHONE
MOUND, MINNESOTA 55364 (612) 472-1155
November 18, 1977
To:
From:
Sub~e'C~:
Leonard Kopp, City Manager
Don Levens, Planner 9~.
Progress Report--Grants for Home Improvement
The 2nd year allocation for Mo~.~d is $16,204 for rehabilitation
grant funds. Since August 1st, the results have been positive
although, the funding level is minimal due t~ the let year
c~ry over applicants. The program breakdown is as follows:
1st Year Applicants
46xx Bedford Rd.
50xx Edgewater Dr.
49xxDr~mmond Rd.
!909 Lakeside Ln.
$14 256. Allocation
Cancel
Total Allocated
-0-
2~d Year Applicants
46xx Bedford Rd.
50xx Edgewater Dr.
49xx Drmmmond Rd.
47xx Bedford Rd.
31xx Drury Ln.
46z-x Hanover Rd.
49¥~ Wilshire Blvd.
48X~ Wilshire Blvd.
3043 Tuexdo Blvd
Estimated Total to date
~16~20.4 "
~938 Approved
5000 "
1679 Pending
3303 Approved
3860 ~Pending
2500 estimate
2000 "
New inquiry
(let Yr. carry over)
New
MOUND ADVISORY 1PA~ COMMISSION
November ~?, 1977
Chairman Hal Lateen, Cathy Bailey, Ed Hasek, Jon Lynott,
Toni Case, Pat Shay, Council Rep. Ben Withhart, Oity Mgr.
Leonard Kopp, City Planner Don Levens, Park & Tree ¢oord.
Chris Bollis, Dock Insp. Don Rother, .Sec. Ketene Uhe
Audience: Craig Williamson~ 3233 Tuxedo Blvd.
wed and Lynott seconded to approve the minutes of the 10/.20/77
and 11/03 meetings as presented. Vote vas unanimou~.
REw/IE~ OF DOCK LOCATION HiP ,
~~is~u~sisn on-sev~a~[ areas ~ith e~mtl~ doc~, the folloeZ~
motions were una~~ly voted in:
'**Lateen moved and ~ley aecond~ to r~uce the n~ber of dock si~ea
at the Ar~r ~ne access from fo~ ~o three, aa the current surwy
shows less actual lakeehore than prewioumly thought.
**~iley moved and Hasek seconded to recommend that the City staff i~':-
vestigate the dock s~cing ~' from G~I to ~nch ~e and re~rt at
next ye~'a dock location map re~ew,.
**(Case mov~ to re~ve f~a the table the di~c~sion of the Bluebi~
s~ir~y. )
~rson mov~ and Shay seconded that no a~irwaya be allowed on the
Woodland ~int for access to doc~.
iley-SUbmitted t~e Re~reation Committee's Report to the Commission fez
discussion. An addition to the report wam made to have two seperated
skating areas at Tyrone Park - one for recreational skating and the othex
for hockey, broom ball~ etc. games.
sented a plan to transfer funds this year from
Bike Rike to use for housing needs.
**Bailey ~oved to recommend that the Park Co~. give up the $12,OOO from
year 2 Of NUD monies that was appropriated for Bike Hike and ~ove it
into Housing Rehabilitation Program.
Lynott seconded and vote ~as unanimous.
~*Lynott moved that the Com~. set the meeting date for the public hearing
on HUD funds year 4, on December 15, 1977, and invite the Planning
Comm. to attend. Hasek seconded and vote ess unani~oue.
Turnquist development - Levens ia getting input from other surrounding
communities regarding similar planned unit developments. It was reported
that Mr. Turnquist may feel he has provided enough open apace by the
light density of the planned community.
CITY OF MOUND
Mound, Minnesota
November 25, 1977
INFORMATION MEMORANDUM NO. 77-205
TO:
FROM:
SUBJECT:
The Honorable Mayor and City Council
The City Manager
Youth & Human Rights Commission
Attached is a list of the Youth Commission and the Human Rights
Commission members and the expiration dates of their terms of
office.
Leonard L. Kopp ~
Youth Commission
(7 Adult & 7 Youth)
Expiration Date of Term
l~on Bostr orn 1/1/80
Joy Fleming 1/1/79
Merry Peterson 1/1/79
l{on Uhe 1/1/79
Carolyn Donahue (Resigned) 1/1/78
Gary G~ ~ ~ uw (~e~i~39%~) 1/1/80
John Fitzgerald (Resigned) 1/1/78
Ann Chase
Iv[ark 3essen
Deb McIntyre
Katie Phleger
Dawn Polston
Rick Klocek
9/1/78
8/31/77
8/31/77
9/1/78
9/1/78
9/1/78
Human Rights Commission
Sue Sc arb or ough
Sandy Andrews
Barb Stuth
Ruth Wyman
Steve Sundb er g
1/1/78
1/1/78
1/1/79
1/1/79
111/80
zb7 6
',?;dTH) ~D:rlSO~I BO~d~.D '.TJ THE ~-~0~ GIT% GOLglGIL.
i (7 :..~bgrs .'.~D 7
YOUTH Cd. ,'~SS!Oh;
GP~DE
PHO3!E ¢'?'~ ' ':'/,Z"g?
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go~q_~'Ssio~'Positio~'-# ..................................... DAt, e"o'£ Ter~ 'F__a~/LYatf~£DA '~"-- ..........
Dote of' Commission ILeco~e~C~ion Cotmci'l Appo/z~t.qe~t, D~t,e Res, ~"
Te~.~Lt~At, iO~ by resi~'~f~LOn or d3.smi8sA1 - Date o[' ~ C~.'~, Actio~
P.O. Box 387, Wayzata, Minnesota 55391
,
FROM:
Attached Distribution List
David H. Cochran, President
Minnehaha Creek Watershed District
DATE: November 23, 1977
Proposed Management Policy an~ Objectives
Minnehaha Creek Headwaters Control Structure
Attached is a proposed statement of management policy
and objectives for a new headwaters control structure proposed
to be constructed by the Minnehaha Creek Watershed District at
the site of the existing Gray's Bay dam.
The headwaters control structure is the key improve-
ment envisioned by a petition submitted to the Minnehaha Creek
Watershed District by the Cities of Minneapolis, St. Louis
Park, Edina, Hopkins, Minnetonka and the Minneapolis Park and
Recreation Board in 1973. The preliminary engineering report
to the district's engineer evaluated three alternative sites
for the proposed structure, including the existing Gray's Bay
dam site.
After considerable review by the Minnesota Department
of Natural Resources, the department requested that the mana-
gers consider the use of the existing Gray's Bay dam site for
the headwaters control structure. The DNR requested that the
managers of the district develop a management policy for a
control structure to be located at this site.
Our review indicates that the headwaters control
structure can accomplish its intended purposes at the Gray's
Bay dam site. The managers of the district have therefore
prepared the attached proposed management policy and have
directed that it be circulated to all interested persons for
review and comment at this time.
1074
The district's engineer is preparing an updated
preliminary engineering report on the overall creek improve-
ment project envisioned by the petition, including the head-
waters control structure. The district is required to submit
that preliminary engineering report to the Minnesota Depart-
ment of Natural Resources and the Minnesota Water Resources
Board for reports by those agencies. We hope to submit the
preliminary engineering report by mid-December.
Prior to doing so, however, the managers wish to be
informed of any comments, suggestions or questions interested
persons may have with respect to the proposed management
policy attached. I therefore urge your prompt review of the
attached statement.
Please submit your comments and suggestions to the
district's engineer, Eugene A. Hickok & Associates, 545 Indian
Mound Road, Wayzata, Minnesota, 55391, at the earliest possible
time.
Thank you.
DISTRIBUTION:
Mayor and City Council, City Manager or
City Clerk and City Engineer, Cities of
Deephaven Mound Tonka Bay
Excelsior Orono Wayzata
Greenwood Shorewood Woodland
Minnetonka Beach Spring Park Victoria
Minnetrista
Laketown Township
Hennepin County Commissioners, Clerk and Engineer
Lake Minnetonka Conservation District
Lake Minnetonka Association
Lake Minnetonka Sun Newspaper
St. Louis Park Sun Newspaper
Creekside Chapter, I.W.L.A.
Former Managers, Minnehaha Creek Watershed District
Minnehaha Creek Watershed District Advisory Committee
The Honorable George Pillsbury
The Honorable Gerald Knickerbocker
The Honorable Robert Searles
i07,,
P.O. Box 387, Wayzata, Minnesota 55391
BOARD OF MANAGERS:
David H. Cochran. Pres. · H. Dale Palmatier * Albert L. Lehman · James S. Russell o Jean Williams
PROPOSED MANAGEMENT POLICY AND OBJECTIVES
MINNEHAHA CREEK HEADWATERS CONTROL STRUCTURE
GRAY'S BAY DAM SITE
November 17, 1977
A new headwaters control structure is proposed to be
constructed by the Minnehaha Creek Watershed District at the
site of the existing Gray's Bay dam. This structure would be
constructed and operated to accomplish the following objectives:
1. Stabilize lake levels on Lake Minnetonka to
the maximum practicable extent between elevation 928.6 MSL
(the low point on the existing Gray's Bay dam) and 929.4 MSL
(the ordinary high water level for Lake Minnetonka) to mini-
mize flooding on the lake and maintain more adequate year-end
lake levels.
2. Limit the discharge to Minnehaha Creek to the
maximum practicable extent to 250 cfs (the maximum carrying
capacity of Minne!~aha Creek without flooding) to reduce down-
stream flooding.
3. To the extent that natural spring run-off and
rainfall events can be anticipated, lake levels would be tem-
porarily decreased in order to accommodate such run-off, which
would later be released at a controlled rate, thereby reducing
downstream flooding and reducing potentially harmful high lake
levels.
4. To the extent feasible and consistent with the
above objectives, creek flow augmentation will be provided.
In summer, this would enhance recreation and aesthetics; in
winter, it could alleviate potential flooding resulting from
stream bed ice build-up.
The attached figure demonstrates graphically how
discharges at Gray's Bay would be regulated to accomplish these
objectives. The chart shows proposed lake levels and discharge
rates to the creek during an operating year of April through
March. The ranges of proposed control are colored on the graph.
Page Two
The heavy black line descending from left to right
across the chart (929.3 to 928.6) represents minimum lake
levels which would be maintained during the months indicated.
In a normal year, no flow through the structure would be per-
mitted if lake levels are below the indicated elevations.
The horizontal line at elevation 929.6 is the esti-
mated lake level above which discharge to the creek with the
present structure exceeds 250 cfs and downstream flooding
will now occur. The proposed management policy would limit
the discharge to the creek to 250 cfs at lake levels of 929.6
to 930.0. Under the proposed policy, lake levels above 929.6
would occur less frequently than with the present structure.
The horizontal line at elevation 930.0 represents a
level above which high water on the lake would be reduced to
the maximum practicable extent. Unrestricted flow through
the structure would be permitted, resulting in a discharge
rate to the creek comparable to that occurring with the pre-
sent structure.
The management objectives are illustrated on the
graph by dividing the operating year into thirds. During the
period April through July, a limited discharge through the
structure would be permitted only at lake levels above 929.3
to store water on the lake during this period of high run-off
for later lake level stabilization and low flow augmentation
to the creek.
During the period August through November, stored
water would be released at a controlled rate to maintain more
stable lake levels than are possible with the present structure
and to enhance recreational and aesthetic benefits downstream.
During the final third of the operating year,
December through March, any additional stored water would be
released through the control structure at a minimum rate of
25 cfs to prevent winter freeze-up in the creek. This final
period of management will bring the lake level to an elevation
that will provide an adequate storage capacity for the pre-
dicted spring run-off. In a normal year, the minimum lake
level at the end of this period would be 928.6.
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