HomeMy WebLinkAbout2008-03-04 TKDA Transmittal Forwarding Baytownship Comp Plan Amendment & Attachments TKDA 444 Cedar Street, Suite 1500
Saint Paul, MN 55101 -2140
ENGINEERS • ARCHITECTS • PLANNERS MAR - 5 (651) 292 - 4400
(651) 292-0083 Fax
www.tkda.com
TRANSMITTAL
To: City of Oak Park Heights, City of Bayport, Date: March 4, 2008
West Lakeland Township, City of Lake Elmo, Re: Comprehensive Plan Amendment for
City of Stillwater, Washington County, the St. Croix Preparatory Academy
Stillwater Area School District (District 834), Baytown Township, Minnesota
Washington Conservation District, Proj. No.: 13817.003
Middle St. Croix Water Management Organization, Routing:
Minnesota Department of Natural Resources
Copies Sheet No. Description
1 Comprehensive Plan Amendment and Attachments
Transmitted As Checked Below:
As Requested No Exceptions Taken
For Your Information ( I Correct as Noted
For Approval ( I Revise and Resubmit
I X I For Review and Comment I Other (See Remarks)
Via:
I X I Regular Mail ( I Overnight I I Courier _ Hour I I Hand Deliver
Remarks:
For your review and comment, attached is a Comprehensive Plan Amendment that has been forwarded to the Metropolitan
Council for review and comment. Please contact me at (651) 292 -4471 if you have any comments.
•
If enclosures are not as noted, kindly notify us at once. Sent By:
cc: Kent Grandlienard, Township Chair
(
Connie Fredkove, Township Clerk
VU /7
Dave Magnuson, Township Attorney Angela" . Torres (651) 292 -4471
An Employee Owned Company Promoting Affirmative Action and Equal Opportunity
It Metropolitan Council Local Planning Handbook I Amendment Form
Comprehensive Plan Amendment Submittal Form
AMENDMENT NAME St. Croix Preparatory Academy (SCPA) Comprehensive Plan Amendment
This form is available in MS Word format on the Metropolitan Council's website:
http://www.metrocouncil.orp/planning/assistance/resources.htm.
COMMUNITY PROFILE AND AMENDMENT OVERVIEW
1. Provide the following information:
Local governmental unit Baytown Township, Minnesota
Contact name Angela R. Torres
Contact title Planner
Address 444 Cedar Street, Suite 1500
City, State, and Zip St. Paul, Minnesota 55101
Telephone number (651) 292 -4471
FAX number (651) 292 -0083
Email address angela.torres(a�tkda.com
Date of preparation February 22, 2008
2. Identify type of amendment and describe. Check all that apply:
2a. Land use change
2b. MUSA Expansion or Change
2c. Text Change
Local Urban Service Area (LUSA) Expansion: Sewer and water
2d. Other service expansion to Baytown Township through a Joint Powers
Agreement (JPA) with the City of Bayport.
3. Provide a description of the amendment.
General location The site is bounded by CTH 14 (47th Street North) on the north, CTH 21
(Stagecoach Trail North) on the east, and the Union Pacific Railroad track on the
west in Baytown Township, Minnesota.
Brief description The Friends of St. Croix Preparatory Academy are proposing to construct a new
K -12 charter school for 975 students and a staff of 55. The school is requesting
that the facility utilize public sewer and water facilities through the City of
Bayport. A Joint Powers Agreement (JPA) between Baytown Township and the
City of Bayport has been executed. At this time, Baytown does not have access
to public sewer service. Residents of Baytown near the school site do have
access to public water service through an existing JPA with the City of Bayport.
The Township has amended the existing JPA to include provision of public
sewer service to the school and extend water services to the site.
Affected area, in acres 58.68 acres
January 2007 . 1
r
SECTION 1: PROCESS OVERVIEW http: / /www.metrocouncil.org /planning /LPH /LPHSect1.pdf
4. Indicate official local status of the plan amendment. (Check all that apply.) The local governing body
must take action on the proposed amendment before submittal to the Metropolitan Council.
Action Date of Action
X Acted upon by planning commission December 3, 2007: The Town Board
authorized the completion of the
Comprehensive Plan Amendment
submission to the Metropolitan Council.
X Approved by governing body, contingent upon Approved SCPA Conditional Use Permit
Metropolitan Council review contingent upon Metropolitan Council review
on January 7, 2008.
5. List adjacent local governments, school districts and other jurisdictions and the date the copies were
sent. Notifying adjacent governmental units and affected school districts is one of the criteria
the Council will use in determining whether an application is deemed complete for review.
City of Oak Park Heights, City of Bayport, West Lakeland Township, City of Lake Elmo, City of Stillwater,
Stillwater Area School District (District 834), Washington County, Washington Conservation District, Middle
St. Croix Water Management Organization, Minnesota Department of Natural Resources.
6. Identify outstanding issues or conditions made in the Metropolitan Council's review of the municipality's
2020 Comprehensive Plan Update or subsequent comprehensive plan amendment?
No, the Council's review did not identify any issues or conditions.
Issue /Condition Steps taken or future planned actions, including date
(e.g.) Tier II Sewer Plan City Engineer drafting. Will submit to Council for review by December 2005.
Update the plan's references The Township's Comprehensive Plan is currently being updated and will be
to Minnesota laws governing submitted to the Council in 2008.
airport zoning standards, as
coordinated with Washington
County Planning Staff.
Consider amending the rural The Township's Comprehensive Plan is currently being updated and will be
residential designation from submitted to the Council in 2008.
1 unit per 5 acres, to 1 unit
per 10 acres in order to meet
regional policies and help
Baytown Township achieve
its rural planning goals.
January 2007 2
7
7. Will /has an environmental review (Environmental Assessment Worksheet, Environmental Impact
Statement or Alternative Urban Areawide Review) be /been completed for the site?
X No, none required.
Yes, indicate type of review and approximate date of completion. Include a summary of
findings, if completed:
SECTION 2: FORECASTS http: / /www.metrocouncil.org /planning /LPH /LPHSect2.pdf
8. Does the plan amendment change the population, household and employment forecasts that appear in
the Metropolitan Council's published forecast tables? (Published forecast tables are online.)
X No: no change in community -level forecasts
Yes: identify the net changes to community -level forecasts due to the plan amendment:
' � 9 g ffi ffi m ffi
Households + / - + / - + / -
Po•ulation +/ - +/ - +/-
Em•lo ment +/ - +/ - +/-
k S w ,,, ffi « g ® 0 .,q01 n ,q t 9 3
SECTION 3: LAND USE http: / /www.metrocouncil.org /planning /LPH /LPHSect3.pdf
9. Does the plan amendment propose any impacts to wetlands located on the site?
No wetlands on the site.
X No impacts to wetlands located on the site.
Yes, describe the type of wetland, potential impacts and mitigation plans:
10. Describe land use changes in acres, applicable to this amendment site, using the following tables and
filling in the community's specific land use categories:
■ Not Applicable.
Transition 50.73 50.73 -_
7.95 7.95
Total 58.68 58.68
CPA = Comprehensive Plan Amendment
January 2007 3
11. Housing: If the proposed amendment changes the amount of land city wide staged for development by
2011 for medium density, high density or mixed use residential development, complete the following
table to identify the amount of land available pre and post amendment :
Acres city -wide for each land use Acres city -wide for each
category land use category
Fill in all land use categories Pre - amendment Post- amendment
that allow for multifamily Total Developed Developable Amendment Developable
residential development Acres acres Acres* acres ** acres
a b a -b =c d c +d =e
(e.q.) Medium Density Residential 1000 700 300 20 320
N/A
* "Developable" means land planned for urban residential development, infill or redevelopment before 2011.
** Amendment acres from the municipality's response to Question #10 above.
12. Mississippi River Critical Area /MNRRA: Does the proposed amendment include any land within the
designated Mississippi National River and Recreation Area (MNRRA) and Critical Area boundaries?
X Not Applicable, not a community within CA / MNRRA boundaries
No, site is not within CA / MNRRA boundaries
Yes, describe how Critical Area guidelines and voluntary MNRRA Comprehensive
Management Plan policies are being addressed.
SECTION 4: TRANSPORTATION http: / /www.metrocouncil.org /planning /LPH /LPHSect4.pdf
13. Complete the following table using the Institute of Transportation Engineers Trip Generation Manual, 6
Edition, to show whether this plan amendment increases or decreases trip generation from the planned
land use and transportation element of the community's comprehensive plan.
., s F X a ® { s vapt 9 E TC ® " "rte fo h,
f d` 3 4 Rte' m ° , .' # `*e 4 'A
d , :i ,• .a a. fi r, i TM + �, t °; t-� R ; i ,,
�,''' . �+ } ° „�+` �` -* tiro-.; 6$. ur A� C " � EY � -.@i
Est. average daily traffic 4,000 (2008) 4,500 (2015)
Est. peak hour traffic 0 1,200
The Average Daily Traffic (ADT) amounts are estimates for Stagecoach Trail (CR 21) taken from the
Washington County Comprehensive Plan. The construction of the St. Croix Preparatory Academy may have an
impact on the Post - Amendment ADT for CR 21 which would require a separate detailed analysis. The peak
hour traffic amounts are estimates that the site generates today and post- amendment. This information is
based on a traffic analysis prepared for the school by SRF on December 20, 2007 (see attachment).
January 2007 4
14. Will these changes require improvements to the existing local and regional road network or
interchanges beyond what is in the community's current transportation plan?
No, existing local and regional road networks can accommodate increase.
X Yes, describe improvements and who will pay for them: It is being proposed to construct a southbound
right turn lane and a northbound left turn lane within CH 21 at the access point to the St. Croix
Preparatory Academy facility. It is anticipated that the St. Croix Preparatory Academy will fund the turn
lane improvements.
Access
15. If the site has direct access to a principal or "A" minor arterial, is location and spacing consistent with
applicable County guidelines or MnDOT's Access Management Guidelines
(http://www.oim.dot.state.mn.us/access/index.html)?
Not applicable, no direct access to a principal or "A" minor arterial.
No, explain:
X Yes, describe: The proposed facility access point will create a four -way intersection at Stagecoach Trail
(CR 21) and Inspiration Parkway. Access spacing along the county highway is consistent with
Washington County Guidelines but will require a County review.
Transit and Other Modes of Transportation
16. Will this amendment enhance access to transit services, increase or decrease the demand for transit
services or warrant the extension of new transit service?
X No, not currently served by transit or will not affect transit.
Yes, list existing routes, describe changes and identify proposed /necessary transit facility improvements
(e.g. shelters, park and rides):
17. Does the plan amendment include Traffic Demand Management (TDM) strategies or land use and
urban design measures, if applicable?
X No, explain: While not part of the Comprehensive Plan Amendment, SCPA policies encourage use of the
school bus system and limit the number of drivers through parking permits and eligibility requirements.
. Those that car pool and meet academic requirements are given preference for the limited number of
permits issued.
Yes, describe (e.g. car and van pooling, flexible work hours, mixed land uses that discourage vehicle
trips and promote walking, biking, ridesharing, and transit):
18. Does the plan amendment include pedestrian and bike access and facilities, including crosswalks,
bridges, trails, sidewalks, and bike racks, if applicable?
X No, why not: Internally, there will be a trail system in order to better utilize the entire site but these will be
privately maintained and are not a part of the Comprehensive Plan Amendment. A bridge, tunnel or
traffic signal may eventually be needed at the intersection of CH 21 and Inspiration Parkway.
Yes, describe:
January 2007 5
Aviation
19. Does the plan amendment affect any airport functions?
X Not applicable, site not within airport influence area or search area.
No, site within airport influence area or search area but no impacts. Explain:
Yes, describe relationship to airport safety /noise zones, land use compatibility or other possible impacts:
SECTION 5: WATER RESOURCES http: / /www.metrocouncil.orc /planning /LPH /LPHSect5.pdf
Wastewater
20. What type of wastewater treatment will be utilized to serve the proposed amendment?
Individual Sewage Treatment Systems (ISTS).
Privately Owned /Community Treatment System.
Local /Municipal Owned Wastewater Treatment Plant.
X Regional Wastewater Treatment. Met Council St. Croix Valley WWTP. The City has an existing Joint
Powers Agreement (JPA) with the City of Bayport for water services to some areas of the Township. This
JPA has been amended to not only extend water services to the site, but to also extend sewer services
to the site (see attachment). The City of Bayport has completed a Feasibility Study to provide sewer
services to the site (see attachment).
21. Complete the following table, to show whether this plan amendment increases or decreases
wastewater flow from currently planned land use and sewer flow projections.
0 c, ,OO ® i14 ®0 a ®�
2000 0 0
2010 0 0.010
2020 0 0.044
2030 0 0.044
Mgd = million gallons per day
Post Amendment flows are based on a 2015 build out for the St. Croix Preparatory Academy.
22. Does the local wastewater system have adequate capacity, or staged capacity to accommodate the
proposed amendment?
X Yes, explain: The City of Bayport's local system was designed to accommodate flow from 790 acres
located within Baytown Township.
No, explain:
23. Does the regional wastewater system have adequate capacity, or staged capacity to accommodate the
proposed amendment?
X Yes, explain: The regional system was designed to accommodate future flows that are planned for the
City of Bayport; which includes flows from Baytown Township as listed in #22.
No, explain:
January 2007 6
24. Has the community and /or Metropolitan Council identified an inflow and infiltration (I &I) problem?
Yes, describe the steps taken to address the 1/1 issue and plans for future action:
X No, the City/Twp does not have an identified 1/1 problem.
25. Identify interceptor(s) that will be impacted by these changes and indicate if flows will be diverted from
one interceptor service area to another?
The impacted Interceptor is MCES #9101. Flows will not be diverted.
26. Does the plan amendment include any wastewater flow to an adjacent community? For new
intercommunity agreements, the receiving community must also amend the sewer element of its plan.
X Yes, enclose a copy of the inter - community agreement. See the attached Joint Powers Agreement.
No.
Surface Water
27. Will stormwater runoff generated from proposed amendment be treated on -site?
No, check one of the following and describe:
Runoff will receive no treatment:
Runoff will be treated off -site, identify off -site treatment facility:
X Yes, describe type and level of on -site pollutant removal treatment/mitigation plans:
Stormwater ponds and infiltration areas are being proposed for stormwater treatment measures.
Stormwater treatment measures will be constructed in accordance with the local Watershed Management
Organization and the Pollution Control Agency Standards.
28. Does the community have an updated stormwater management plan, including best management
practices and implementation strategies?
Yes, Year adopted:
X No, explain: A Surface Water Management Plan is being included in the 2008
Comprehensive Plan Update which addresses BMP and implementation
strategies. Currently, the Township is regulated with Washington County
Ordinances.
29. Does the community have an adopted erosion control ordinances?
X Yes, Year adopted: The Township currently utilizes Washington County erosion control policies. The
Township will be looking at adopting plans and ordinances following completion
of the Comprehensive Plan Update,
No.
January 2007 7
•
Water Supply
30. Does the community have an updated water supply plan?
Yes, Year adopted:
X No.
31. Will the proposed plan amendment increase or decrease projected water use from the community's
current water supply plan?
N/A No increase or decrease in projected water use from water supply plan.
N/A Yes, provide water supply plan amendment to describe necessary facilities improvements or changes:
SECTION 6: PARKS http: / /www.metrocouncil.org /planning /LPH /LPHSect6.pdf
32. Does the amendment include, or is it adjacent to or within '/ a mile of an existing or planned regional
park, reserve or trail, as identified in the 2030 Regional Parks Plan?
Yes, describe potential impacts and mitigation plans:
X No.
33. Does the community have a Parks & Open Space Plan including regional park elements?
Yes, Year adopted:
X No. This element will be included in the 2008 Comprehensive Plan Update.
SECTION 7: IMPLEMENTATION http: / /www.metrocouncil.org /planning /LPH /LPHSect7.pdf
34. Will the plan amendment require changes in zoning or subdivision ordinances, capital improvement
program (CIP), or other official controls?
X No. The current land use is Transition, which would not require a change in zoning. However, in order to
be consistent with neighboring land uses and since Transition implies a temporary land use, the Township
is considering changing the land use to Single Family Estates (SFE) in conjunction with the 2008
Comprehensive Plan Update.
Yes, describe proposed changes and timeline:
35. Does the community have natural resources protection ordinances, including wetland, tree
preservation, and steep slopes?
Yes, identify:
X No.
January 2007 8
January 2007
JA l
SEH
January 31, 2008 RE: Bayport, Minnesota
St. Croix Preparatory Academy Utility
Extension Feasibility Report
SEH No. A- BAYPO0801.00 14.00
Honorable Mayor and City Council
City of Bayport
294 North Third Street
Bayport, MN 55003
Attn: Mike McGuire, City Administrator:
The City of Bayport has received a request to extend City sanitary sewer and water service to the
St. Croix Preparatory Academy site located in the southwest corner of the 47 Street North
(CSAH 14) and Stagecoach Trail (CSAH 21) intersection. The site is located within Baytown
Township, however through cooperative agreements, the City has previously extended water
service to properties within the Township, and has agreed to amend the agreement to provide
sanitary sewer service. The preparation of a Feasibility Report was required to investigate the
ability to provide service, estimated costs and cost recovery. Since the project was initiated by
petitioned from the affected property owner, a public hearing will not be required. The attached
map shows the project location.
With the construction of the Inspiration Development, a trunk water main was constructed from
' the location of the ground reservoir booster station and Well Number 2 treatment plant to
Stagecoach Trail within Inspiration Parkway. This trunk water main has been extended southerly
along Stagecoach Trail to the new 300,000 gallon ground reservoir and to serve the Emerald
Falls, Audubon and Miller Farms developments in Baytown Township. It was also extended
westerly to serve the Wesley's Bay Ridge development, west of the proposed school site.
Sanitary sewer mains were constructed with the Inspiration development. Sewer mains exist at
the intersections of Inspiration Parkway and Primrose Path, and on Primrose Path, north of
Pioneer Trail.
Three alternatives were investigated to provide sanitary sewer service to the school building.
Alternate 1 is the connection to the existing manhole located at the intersection of Inspiration
Parkway and Primrose Path. Gravity sewer would be extended westerly along Inspiration
Parkway, than jacked under Stagecoach Trail to the west side, then northerly along the proposed
school driveway. This alternate would involve reconstruction of existing Inspiration Parkway. If
the sanitary sewer is a public facility within the school property, a utility easement would be
required to provide access for maintenance.
The second alternate is the connection to an existing manhole located within future Primrose
Path right -of -way, north of Pioneer Trail. A gravity sewer lateral would extend westerly through
Outlot D and be jacked under Stagecoach Trail. The lateral would continue westerly to the
Short Elliott Hendrickson Inc., 3535 Vadnais Center Drive, St. Paul, MN 55110-5196
SEH is an equal opportunity employer 1 www.sehinc.com l 651.490.2000 I 800.325.2055 I 651.490.2150 fax
Honorable Mayor and City Council
January 31, 2008
Page 2
school driveway, than northerly within the driveway to serve the building. The existing manhole
is located outside of any street paving, so there would be no street reconstruction required. A
utility easement will be required across Outlot D in the Inspiration development for maintenance.
If the sanitary sewer is a public facility, a utility easement would be required from the school
along the sewer route on the west side of Stagecoach Trail.
Alternate 3 is along the same route as Alternate 2, but would include a lift station constructed on
the west side of Stagecoach Trail with a force main constructed from the lift station easterly to
the manhole located in Primrose Path. Under this alternate, the sanitary sewer laterals, lift station
and force mains would be private. A utility easement would be required from the owners of
Inspiration across Outlot D to provide access for maintenance.
Only one alternate was investigated for water service to the site. It is proposed to be provided
from the existing 12" trunk constructed to serve Wesley's Bay Ridge. The ultimate plan for
water service to serve properties within Baytown Township includes the construction of a 12"
trunk main along Stagecoach Trail northerly to 47 Street North as a part of the overall looping
of the water mains. Therefore, it is proposed to construct a 12" trunk main along the westerly
side of Stagecoach, from the existing trunk to a point just to the north of the proposed school
building. This trunk can be extended in the future to provide the desired water main looping. An
8" lateral main is proposed to be constructed westerly from this trunk to the proposed school
driveway, then northerly to provide service. Hydrants are proposed to be constructed along both
the 12" trunk and 8" lateral to provide fire protection and for maintenance. It is recommended
that the water mains be public, so utility easements would be required from the school for
maintenance purposes. Drawings 2 through 4 show the alternates.
The estimated project costs for the three alternatives are as follows. These costs are estimated
based on 2008 construction and include contingencies, and 30% for engineering, legal, and
administrative costs. A copy of the cost estimate is attached.
Imp rovement Alternate 1 Alternate 2 Alternate 3
Sanitary Sew $194,466 $138,653 $234,606
Water Main (1) 221,043 221,043 221,043
Total $415,509 $359,696 $455,649
(1) Includes estimated cost of $45,939 to upsize from 8" lateral to 12" trunk
In addition to the above project costs, properties developing in Bayport and Baytown Township
that connect to the City of Bayport utilities are required to pay Area and Connection charges and
to reimburse the Inspiration and Baytown Developers for costs associated with the construction
of trunk improvements within Baytown Township (ground reservoir, booster station, trunk water
mains). The area and connection charges are required to help pay the costs associated with the
installation of trunk sanitary sewer and water facilities and to reserve capacities for additional
facilities to be connected to the system. Bayport Area Charges are determined based on gross
area, for this site 58.7 acres. Current Bayport area rates are $1,000 per acre for sanitary sewer
Honorable Mayor and City Council
January 31, 2008
Page 3
and $1,200 per acre for water. Water Availability Charges (WAC) and Sewer Availability
Charges (SAC) are billed based on Metropolitan Council of Environmental Services (MCES)
SAC units. Current Bayport connection charges are: Bayport Sewer Connection - $750 /unit,
Bayport WAC - $1,200 /unit and MCES SAC - $1,825 /unit. The rate for reimbursement to the
Inspiration and Baytown Township developers is currently $2,472.62 per lot. Based on the
current rates, the following is a summary of the Area and Connection charges. The SAC
determination, attached, is estimated based on current building plans with areas determined by
the architects for the building, Kodet Architectural Group, LTD. Actual SAC's will be calculated
at the time final plans are submitted.
Area Charges
Unit Rate Total
(Ac.)
Sanitary Sewer 58.7 $1,000.00 $58,700.00
Water 58.7 1,200.00 70,440.00
Total Area Charges $129,140.00 -
Connection Charges
Unit Rate Total
(SAC Units)
City Sewer Connection 162 $750.00 $121,500.00
City WAC 162 1,200.00 194,400.00
MCES SAC 162 1,825.00 295,650.00
Total Connection Charges $611,550.00
Existing Developer Reimbursements
Unit Rate Total
(Lots)
Reimbursement 31 $2,472.62 $76,651.22
1 Typical number lots in Township Developments - 0.54 per Acre
0.54 lots /Ac * 58.7 Ac.
Total Area, Connection and Reimburseable Charges $817,341.22
The three alternatives for the extension of sanitary sewer service and the extension of water
service to the St. Croix Preparatory Academy site as noted above are feasible and economical
from the engineering standpoint. The school developers will need to determine their own
economic feasibility. The improvements are also necessary to allow for development of the
property and to minimize the need to drill a private well in the contaminated aquifer in the
Minnesota Department of Health (MDH) Special Well Construction Area (SWCA). Gravity
sanitary sewer service is recommended over service that includes a lift station, so Alternate 3 is
not recommended. Since Alternate 1 would greatly impact the one access to the Inspiration
development and is higher in cost, it is recommended that Alternate 2 be constructed as noted
Honorable Mayor and City Council
January 31, 2008
Page 4
above. It is further recommended that the all the water main improvements be public facilities
with the Bayport Public Work providing maintenance similar to the water mains currently
installed in Baytown Township. Also, it is recommended that the sanitary sewer improvements
within the City of Bayport be public and that the Bayport Public Works Department maintain
these improvements similar to the existing sanitary facilities in the City. The City and developer
will need to determine if the remainder of the sanitary sewer improvements in Baytown
Township will be public and maintained by the City, or private.
Sincerely,
Barry
j8(.5 Peters, PE
City Engineer, Reg. No. 14148
bcp
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ADDENDUM NO. 2
TO
JOINT POWERS AGREEMENT
This is Addendum No. 2 to the Joint Powers Agreement dated October 3, 2005, (the
"Agreement ") by and between the City of Bayport, Washington County, Minnesota ( "Bayport")
and the Town of Baytown, Washington County, Minnesota ( "Baytown ").
RECITALS
1. The Friends of St. Croix Preparatory Academy, a Minnesota non—profit
corporation (the "Friends "), has applied to Baytown for permits and zoning approval for the
development of a campus for the St. Croix Preparatory Academy on real estate described in
Exhibit "A" ( "Campus ").
2. That in order to facilitate the development of the Campus, Baytown has requested
Bayport to consider the extension of not only its municipal water service, but also its municipal
sewer service to provide the advantage of municipal utilities to the site.
3. That the Agreement does not envision the extension of municipal sewer service
into Baytown and the Agreement also requires that the water service already extended into
Baytown not be enlarged or extended without the written consent of Baytown and Bayport.
4. The parties therefore agree that the Agreement as amended by Addendum No. 1
be further amended to include the following conditions:
a. That the design of the water service and sanity sewer service within the Campus
will be subject to the approval of the Bayport City Engineer;
b. That Bayport will design and build the necessary connections with Bayport in
order to bring the water and sewer service to the boundary of the Campus,
provided that a deposit is made by the Friends in an amount equal to the estimated
costs of the work; and
c. That each instance within the Agreement that the term "water service" is
mentioned, will be amended to hereafter read "water and sanitary sewer service"
including the sections of the Agreement relating to Design, Contactors, Financing,
Escrow, Dedication, Interface, Connection Process and Charges, Repair,
Maintenance and Reconstruction, Compliance, Billing, and Improve -
ments/Extensions.
5. Subject to all other terms, conditions, obligations and covenants contained in the
Joint Powers Agreement dated October 3, 2005, as amended by Addendum No. 1, will remain in
full force and effect.
IN WITNESS WHEREOF, the parties have set forth their hands and seals this day first
written above.
CITY OF BAYPORT TOWN OF BAYTOWN
Jonathan Nowaczek, Mayor Kent Grandlienard, Chairperson
Michael McGuire, City Administrator Constance M. Fredkove, City Clerk
STATE OF MINNESOTA )
) ss.
COUNTY OF WASHINGTON )
The foregoing instrument was acknowledged before me on the day of
, 2007, by Jonathan Nowaczek and Michael McGuire, respectively
the Mayor and Administrator for the City of Bayport.
NOTARIAL STAMP OR SEAL
(or other title or rank) Signature of Person Taking Acknowledgment
-2-
I
STATE OF MINNESOTA )
) ss.
COUNTY OF WASHINGTON )
The foregoing instrument was acknowledged before me on the day of
, 2007, by Kent Grandlienard and Constance M. Fredkove,
respectively the Chairperson and Clerk for the Town of Baytown.
NOTARIAL STAMP OR SEAL
(or other title or rank) Signature of Person Taking Acknowledgment
This Instrument Drafted By:
David T. Magnuson
Magnuson Law Firm
333 North Main Street, Suite 202
Stillwater, MN 55082
651 -439 -9464 main
651 -439 -5641 fax
- 3 -
O N 5 U "" I I+� f GROUP, I7 P, N MlNNEAPOLIS
FARGO
E NGINEERS I PLANNERS 1 DESIGNERS MADISON
SRF No. 0076306
TECHNICAL MEMORANDUM
TO: Carroll Davis - Johnson, Director
Friends of St. Croix Preparatory Academy
ST. CROIX PREPARATORY ACADEMY
FROM: Marie Cote, PE, Principal — Traffic Studies
Jeff Bednar, TOPS, Senior Traffic Engineering Specialist
DATE: December 20, 2007
SUBJECT: ST. CROIX PREPARATORY ACADEMY TRAFFIC IMPACT STUDY — BAYTOWN SITE
Introduction
We have completed a traffic impact study for the proposed St. Croix Preparatory Academy (K-
12 Charter School). The school campus site is located generally west of Stagecoach Trail
(County Road 21) and south of 47th Street (County Road 14) (see Figure 1). This traffic study
will also include the traffic associated with the adjacent Inspiration residential development east
of the school site. The school site access would be at Stagecoach Trail (County Road 21) and
Inspiration Parkway which is the primary access to the Inspiration residential development.
The purpose of this study is to determine the traffic impacts on the adjacent roadway system
related to the proposed St. Croix Preparatory Academy (SCPA) School, with an operations
analysis during the appropriate peak hours for existing and future conditions. In addition, a
review of the proposed site access, traffic safety, school pedestrian activity and potential impacts
to the existing adjacent residential neighborhoods was completed. A two page summary of the
findings, conclusions and recommendations of this traffic impact study begins on page 19.
Existing Conditions
The study area key intersections listed below currently operate at acceptable overall Levels of
Service (LOS) during the peak hours, assuming existing traffic control and geometrics.
•
1. Osgood Avenue (County Road 24) and 47th Street (County Road 14)
2. Stagecoach Trail (County Road 21) and 47th Street (County Road 14)
3. Stagecoach Trail (County Road 21) and Inspiration Parkway
These intersections are side - street stop controlled. Peak hour turning movement counts were
collected at the existing key intersections by SRF on November 27, 2007. Existing geometrics,
traffic control and peak hour traffic volumes for the key intersections are shown in Figure 2.
•
www.srfeonsulting.com
One Carlson Parkway North, Suite 150 f !Minneapolis, MN 55447 -4443 1 763.475.0010 Fax: 763.475.2429
An Equal Opportunity Employer
Project Area Location
Stagecoach Trail Site
Morning Street Peak Hour (7 — 8 AM)
111 97 A 68 51 0 A 0 134 1 A
✓ > N < v > N < v > N
A 343 A 1 A 5
< 1 < 0
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1 > 0 >
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(
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Morning School Peak Hour (8 — 9 AM)
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A 226 " 0 A 4
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s C , a c3 P ` .� , ". a i s F 9 P . _ __, .-
", , , [ , d t
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Afternoon School Peak Hour (3 — 4 PM)
187 255 A 68 76 0 A 0 302 4 A
✓ > N < v > N < v > N
i �^ 179 � � 0 s. 3
l�► 4* < 1 1
m ry 43 45 " v 0 0 A v 1
> e > I e
cs -f;s t o 230 v Z { 0 v
P.
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LL
co
w ". 1,#n a - � a �'ut " ' z s n. n . , ?e €J , u° ` `. ',.. 1....;!111 K t ti a Ca;,.'
r R t {ffri . C €
, � �� '
x
gig 2007 Existing Conditions Peak Hour Intersection Traffic Volumes
St. Croix Preparatory Academy Traffic Impact Study - Stagecoach Trail Site Figure 2
CSYMAATING GRout iNC
Friends of St. Croix Preparatory Academy
0076306 December 2007
Carroll Davis - Johnson, Director December 20, 2007
Friends of St. Croix Preparatory Academy Page 4
An operations analysis was conducted for the existing morning street peak hour (7 -8 AM), the
morning school peak hour (8 -9 AM) and afternoon school peak hour (3 -4 PM) at the key
intersections to determine how traffic currently operates in the study area. These time periods
were selected in order to assess school related impacts during the highest school trip generation
periods. Because the school would generate very little traffic during the afternoon street peak
hour (5 -6 PM) this hour was not included in the traffic operations analysis. The key intersections
were analyzed using the Synchro /SimTraffic computer simulation model.
Capacity analysis results identify a Level of Service (LOS), which indicates how well the
intersection is operating, based on average delay per vehicle. Intersections are given a ranking
from LOS A through LOS F. LOS A indicates the best traffic operation and LOS F indicates an
intersection where demand exceeds capacity. Most agencies responsible for the roadway system
consider LOS A through D acceptable (see Appendix A for more detailed LOS descriptions).
Traffic operations at an unsignalized intersection with side - street stop control can be described in
two ways. First, consideration is given to the overall intersection level of service. This takes
into account the total number of vehicles entering the intersection and the capability of the
intersection to support those volumes. Second, it is important to consider the delay on the minor
approach. Since the mainline does not have to stop, the majority of delay is attributed to the
side- street approaches.
The results of the analysis shown in Table 1 indicate that all key intersections currently operate
at an overall LOS A with the side - street approaches operating at LOS B or better during the peak
hours, assuming existing traffic control and intersection geometrics.
Table 1
St Croix Preparatory Academy Traffic Impact Study
2007 Existing Peak Hour Conditions
Level of Service Results
Level of Service
Study Area Key Intersection AM Street AM School PM School
Peak Hour Peak Hour Peak Hour
(7 -8 AM) (8 -9 AM) (3 -4 PM)
Osgood Ave. (CR 24) and 47th St. (CR 14) A/B (WB) A/B (WB) A/B (WB)
Stagecoach Tr. (CR 21) and 47th St. (CR 14) A/B (EB) A/B (EB) A/B (EB)
Stagecoach Tr. (CR 21) and Inspiration Pkwy A/B (WB) A/B (WB) A/B (WB)
All intersections are side - street stop controlled. The overall LOS is followed by the worst side - street approach LOS (direction).
In addition to the operations analysis, crash data for the study area and key intersections was also
reviewed to determine whether traffic safety problems currently exist at these intersections.
There is not a significant study area crash problem based on a review of the available study area
crash history (Mn/DOT 2002 -2006) and related crash rates compared to average crash rates for
similar intersections (Mn/DOT Statewide Average Crash Rates for 2004 through 2005).
Carroll Davis - Johnson, Director December 20, 2007
Friends of St. Croix Preparatory Academy Page 5
School Site Plan /Access Review
The proposed school campus site plan (see Figure 3) is generally well configured with the
student drop - off/pick -up area and faculty /student driver access and parking areas separated from
the school bus drop - off/pick -up area. There is one primary full access driveway shown on the
east side of the site at Stagecoach Trail (CR 21) and Inspiration Parkway which is also the
primary access to the Inspiration residential development.
In the interest of traffic safety, it is recommended that a southbound right -turn lane and
northbound left -turn lane be added to the intersection of Stagecoach Trail (CR 21) and
Inspiration Parkway and the school site primary access. It is recommended that a preliminary
design/concept layout for these intersection improvements be prepared in order to verify that
there is adequate distance between this intersection and the existing railroad crossing (about 900
feet to the south) to develop a standard length left -turn lane and transition tapers.
School Site Generated Traffic
The proposed St. Croix Preparatory Academy (K -12 Charter School) will be developed in
multiple phases. Phase One and Two will be completed by year 2010 and provide for an
estimated student population of 600 students. Phase Three will be completed by year 2015 and
provide for an estimated student population of 950 students.
Table 2 (see page 7) shows the trip generation estimates for the proposed St. Croix Preparatory
Academy (K -12 Charter School) based on information provided by the school and contained in
previous traffic studies for other school sites dated June 6, 2007 and October 26, 2007.
School generated traffic during the school peak hours is typically concentrated over a short
period of time (15 to 30 minute time frame) and is not spread out over the full hour. Therefore,
75 percent of the school peak hour generated traffic was assumed to enter or exit the site during
the appropriate 15 minute period before or after school in the traffic operations analysis and
computer traffic simulation model by adjusting the peak hour factor.
Special event trip generation estimates have not been developed for this SCPA traffic impact
study primarily because most of the school's special events are held off -site (Downtown
Stillwater and various entertainment venues and food service establishments). Special events
that may be held on -site are smaller events, broken up and scheduled by class /grade group and
therefore may not represent a significant traffic impact.
The directional trip distribution for the proposed SCPA school generated traffic (see Figure 4) is
based on the existing Stillwater School District distribution of households and a selected zone
analysis of the Washington County Travel Demand Model. A random sample of the addresses of
the 450 current students was mapped and used to verify the directional trip distribution
developed from the selected zone analysis of the regional model.
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Carroll Davis - Johnson, Director December 20, 2007
Friends of St. Croix Preparatory Academy Page 9
Traffic Forecasts
The proposed St. Croix Preparatory Academy (K -12 Charter School) will be developed in
multiple phases. Phase One and Two will be completed by year 2010 and provide for an
estimated student population of 600 students. Phase Three will be completed by year 2015 and
provide for an estimated student population of 950 students. Therefore, traffic forecasts were
developed for year 2010 (one year after opening) and 2015 (full build). Based on existing traffic
growth patterns and regional trends, an annual growth rate of three percent was applied to the
existing peak hour volumes to develop the year 2010 and 2015 background traffic forecasts.
Also assumed in the background traffic forecasts was the adjacent Inspiration residential
development. For the 2010 No Build and Build conditions, 10 new homes per year were
assumed to be added to the existing 12 homes in the Inspiration residential development. For the
2015 No Build and Build conditions it was assumed that the housing market will have improved
and all 250 home sites will be developed by that time. Table 3 shows the street peak hour and
daily trip generation estimates for the Inspiration residential development based on information
in the 2003 ITE Trip Generation Report. The school peak hour trip generation estimates were
developed by adjusting the street peak hour estimates applying factors based on a typical
weekday hourly traffic volume profile.
Table 3
Inspiration Residential Development Trip Generation Estimates
Land Use Units Daily A.M. Peak P.M. Peak
Trips In Out In Out
Year 2010
Single Family Detached Homes 22 212 4 12 14 8
Year 2015
Single Family Detached Homes 250 2394 47 141 159 93
The traffic generated by the SCPA school site, the Inspiration residential development and the
existing and future background traffic growth was assigned to the study area key intersections
using a computer traffic assignment model. The combination of existing and future background
traffic and trips generated by the proposed SCPA and Inspiration development for year 2010 and
2015 and for Build and No Build SCPA scenarios are shown in Figures 5 through 8.
Morning Street Peak Hour (7 - 8 AM)
121 107 A 74 56 0 A 0 146 3 "
v > N < v > N < v > N
" 376 " 1 " 8
< 1 < 0
v 42 51 " v 0 0 " v 4
1 > 0 >
93 v 0 v
" } < A > < A >
198 40 337 113 0 0 441 1
, � 9� £�% I �. t •�' r,3" �� �e3 Y ga' , � s ! � t f
� - r ! a. _
:,�4 . eft _
Morning School Peak Hour (8 - 9 AM)
108 91 " 40 65 0 r A 0 131 2 A
v > y N < v > � N - v } N
24
" 248 " 0 " 6
0 < 0
v 26 44 " v 0 0 " v 3
0 0 >
68 v 0 v
A > < A > < A >
170 26 216 85 0 0 295 1
Afternoon School Peak Hour (3 - 4 PM)
204 281 A 74 84 0 " 0 330 8 "
V } N < I lls > N < v > N
N ` " 187 " (} .` 4
0 (0 9 T < 0
m r v 47 49 " v 0 0 " r V 2 Eta* g 1 > 0 >
y 254 v 4 ;i 0 v 1 e
LL
m
LE
'119 38 152 56 0 0 203 3
r
' � - ?� � � `
1 „ S . , a � • ",' x . e sx s- [-} iii a &Y � y i s 3 7 s4 , #a €^i +. pi 2:‘-'1
� � . , `-� K' , c t h a : f � .: � ' k f ' z y d� ' � 1
� ��,a �� � ... �a E.; � '�` ?` '+ ry ''" �
x
2010 No Build Conditions Peak Hour Intersection Traffic Volumes
.G e. St. Croix Preparatory Academy Traffic Impact Study - Stagecoach Trail Site
Figure 5
Friends of St. Croix Preparatory Academy
0076306 December 2007
•
Morning Street Peak Hour (7 - 8 AM)
121 134 A 74 62 0 A 39 146 3 A
✓ > N < v > N < v > N
A 379 A 1 A 8
< 1 < 0
v 43 51 A v 0 3 A v 4
1 > 0 >
126 v 2 v
A > < A
< A >
198 46 339 114 0 21 441 1
Morning School Peak Hour (8 - 9 AM)
108 196 A 40 88 0 A 152 131 2 A
✓ > N < v > N < v > N
A 327 A 0 A 6
< 0 < 0
v 44 44 A v 0 113 A v .3
0 ":,-- 0 >
197 v 61 v
A > < A > < A >
170 49 312 103 0 82 295 1
: .k.,z,--11: ".•:;!... -.. -I ,-;-.:;.' ': :::": -, 16. : :,' : -:, ':''',. . - ' I ..-..''' ''''' j" ''- '''' ''''' '''',z, :V1L l' I " -1. 1:) .? ' 0) .::::
Afternoon School Peak Hour (3 -4 PM)
204 339 A 74 97 0 A 85 330 a A
✓ > N < v > N < v > N
u s) 14 it. A 297 0 14 A 0 0 I 4 -% A 4
cu
49 A mg. + < 1 < 0
CO 4...
v 71 v 0 159 A 411. v 2
•
i ir, 18 "N- j• 4
326 v 86
1 t
> >
119 51 287 80 0 46 203 3
Li
CO
I-
SRF 2010 Build Conditions Peak Hour Intersection Traffic Volumes
St. Croix Preparatory Academy Traffic Impact Study - Stagecoach Trail Site Figure 6
co,,,....m.G....Nc.
Friends of St. Croix Preparatory Academy
0076306 December 2007
Morning Street Peak Hour (7 — 8 AM)
141 140 A 86 72 0 A 0 170 33 A
✓ > N < v > N < v > N
A 487 A 1 A 99
< 1 < 0
v 68 60 A v 0 0 A v 42
1 > 0 >
131 v 0 v
A > < A > < A
229 53 460 150 0 0 512 14
- - ---- — -
-----
Morning School Peak Hour (8 — 9 AM)
125 118 A 47 80 0 A 0 152 25 A
✓ > N < v > N < v > N
A 326 A 0 " 74
< 0 < 0
v 45 51 A v 0 0 " v 32
0 ) 0
97 v 0 v
A > < A > < A >
198 34 302 113 0 0 342 11
Afternoon School Peak Hour (3 — 4 PM)
237 371 A 86 114 0 A 0 383 88 A
✓ > N < v > N < v > N
0 . viii. A 244 1 II, A 0 A 52
a, 114 1 , 0
0— v 64 57 A mirmso. v 0 0 A _gr— v 22
I r
0
, 0 V
E. 1 ... 8 , 357 i e
LL A
> < >
P.
138 61 213 74 0 0 236 38
L.
u,
ti
.
=
t 2015 No Build Conditions Peak Hour Intersection Traffic Volumes
p
St. Croix Preparatory Academy Traffic Impact Study - Stagecoach Trail Site Figure 7
CoNstn.rnto Gaotrr, Ise.
Friends of St. Croix Preparatory Academy
0076306 December 2007
Morning Street Peak Hour (7 — 8 AM)
141 169 " 86 78 0 ^ 41 170 33 A
V > N < v > N < v > N
" 491 " 1 A 99
< 1 < 0
v 69 60 " v 0 5 " v 42
1 > 0 >
166 v 3 v
A > < A ? < A >
229 59 465 151 0 22 512 14
_ .
Morning School Peak Hour (8 — 9 AM)
125 267 A 47 113 0 A 215 152 25 A
v > N < v > N < v > N
A 448 A 0 A 74
< 0 < 0
v 72 51 " v 0 176 " v 32
0 0 >
279 v 95 v
A - < A > < A >
198 67 451 140 0 116 342 11
4, `* gs ' '1 i.c°' x " pK - .. -, 4:- e - x €! a . -fix `S yy i
Afternoon School Peak Hour (3 — 4 PM)
237 462 " 86 134 0 " 131 383 88 A
N 1L-- " 386 `" f ^ o L " 52
a 1 w
m r v 96 57 " mil r V 0 206 " v 22
. 1 > p >�
y 468 v Z 111 _vim ` `7 I r, r, 1 F
LL 138 81 387 106 0 71 236 38
0
r _
ro (( >> _ cis t _,3 ` "— . :i_ n * � x�
tp , ', y = d - , `r>a •• r M ' x - x x ,�, a a " x „ N ' *7s s y x ro - " `1 J � 5 '''x§
...
t �� � ?� � t rz p � ��S �' V �., i.,. ��� _ � e � ` � `" „ � x-e °`
p�-te �" °� 3 � , fx a (( � .
� �
� ,
x
SRF 2015 Build Conditions Peak Hour Intersection Traffic Volumes
/'!o. St. Croix Preparatory Academy Traffic Impact Study - Stagecoach Trail Site
Figure 8
Friends of St. Croix Preparatory Academy
0076306 December 2007
Carroll Davis - Johnson, Director December 20, 2007
Friends of St. Croix Preparatory Academy Page 14
Neighborhood Traffic Impacts
A field travel time study was conducted on November 27, 2007 during the morning and
afternoon school peak hours for the obvious travel routes to and from the SCPA school site (see
Figure 9) to determine if the proposed school will result in increased traffic through the adjacent
neighborhood. In particular, the travel times for school generated trips to /from the southwest
were analyzed to determine the most desirable routes of travel.
Based on the field travel time study the route through the adjacent neighborhood was determined
not to be a highly desirable route and that there would not be a significant level of school
generated traffic that would use the neighborhood route. Since the route through the
neighborhood has a travel time greater than 30 percent longer than the 47th Street route, based
on a widely accepted route diversion/route choice methodology, no school generated traffic was
assigned to the neighborhood route on a daily basis.
However, there may be some school generated traffic that would use the neighborhood route on
an infrequent basis and there is no guarantee that a few school generated trips would not use the
neighborhood route on a regular basis unless somehow restricted from doing so.
Should the Township determine that neighborhood through traffic countermeasures need to be
implemented, a westbound to northbound right -turn and southbound to eastbound left -turn ban
could be considered at the intersection of Osgood Avenue and 44th Street during the school peak
hours of 8 -9 AM and 3 -4 PM. The effectiveness of these neighborhood through traffic
countermeasures would be directly proportional to the level of enforcement of the restrictions.
School Student Pedestrian Considerations
Based on the high speed and higher traffic volume character of Stagecoach Trail (CR 21) in the
vicinity of the proposed school site and the lack of sidewalk/trail facilities in the study area, it is
recommended that all SCPA school students living within walking/bicycling distance of the
proposed school campus be provided busing due to hazardous pedestrian crossing conditions.
SCPA students should be discouraged from choosing to walk/bicycle and required to take the
busing provided due to these hazardous crossing conditions.
Should a future grade separated pedestrian crossing along with connecting sidewalk/trail
facilities be provided within the immediate area of the school or should future traffic signal
control ever be justified at the intersection of Stagecoach Trail (CR 21) and Inspiration Parkway,
the possibility of allowing SCPA school students to walk/bike could be reconsidered.
Union Pacific Railroad At - Grade Railroad Crossing on Stagecoach Trail (CR 21)
Based on the US DOT Crossing Inventory, this fully protected railroad crossing with automatic
gate arms has an average of four trains crossing per day traveling at a maximum speed of 30 mph
and has 12 school bus crossings per day on Stagecoach Trail. The proposed SCPA School may
increase the number of school bus crossings to 28 to 30 per day. No railroad crossing events
were observed during the peak 30 minute periods before or after school during the traffic counts
or other site visits and due to security concerns a railroad crossing schedule is not available.
School Trip Travel Time Study (for School Trip Origins and Destinations to the West/Southwest)
Carroll Davis - Johnson, Director December 20, 2007
Friends of St. Croix Preparatory Academy Page 16
YEAR 2010 CONDITIONS
To determine how well the adjacent roadway system will accommodate year 2010 No Build and
Build traffic forecasts, an operations analysis was conducted for the appropriate peak hours. As
shown in Tables 4 and 5, all key intersections are expected to operate at an acceptable overall
LOS B or better with the side - street approaches operating at LOS C or better (with the exception
of the eastbound school site driveway approach to Stagecoach Trail operating at LOS E) during
the peak hours, assuming existing intersection traffic control and geometrics under year 2010 No
Build and existing traffic control and improved geometrics for the 2010 Build conditions.
Table 4
St Croix Preparatory Academy Traffic Impact Study
2010 No Build Peak Hour Conditions
Level of Service Results
Level of Service
Study Area Key Intersection AM Street AM School PM School
Peak Hour Peak Hour Peak Hour
(7 -8 AM) (8 -9 AM) (3 -4 PM)
Osgood Ave. (CR 24) and 47th St. (CR 14) A/B (WB) A/B (WB) A/B (WB)
Stagecoach Tr. (CR 21) and 47th St. (CR 14) A/C (EB) A/B (EB) A/B (EB)
Stagecoach Tr. (CR 21) and Inspiration Pkwy A/B (WB) A/B (WB) A/B (WB)
All intersections are side - street stop controlled. The overall LOS is followed by the worst side - street approach LOS (direction).
Table 5
St Croix Preparatory Academy Traffic Impact Study
2010 Build Peak Hour Conditions
Level of Service Results
Level of Service
Study Area Key Intersection AM Street AM School PM School
Peak Hour Peak Hour Peak Hour
(7 -8 AM) (8 -9 AM) (3 -4 PM)
Osgood Ave. (CR 24) and 47th St. (CR 14) A/B (WB) A/B (WB) A/B (WB)
Stagecoach Tr. (CR 21) and 47th St. (CR 14) A/C (EB) A/B (EB) A/B (EB)
Stagecoach Tr. (CR 21) and Inspiration Pkwy A/B (WB) B/E (EB) A/D (EB)
All intersections are side - street stop controlled. The overall LOS is followed by the worst side - street approach LOS (direction).
Carroll Davis - Johnson, Director December 20, 2007
Friends of St. Croix Preparatory Academy Page 17
YEAR 2015 CONDITIONS
To determine how well the adjacent roadway system will accommodate year 2015 No Build and
Build traffic forecasts, an operations analysis was conducted for the appropriate peak hours. As
shown in Tables 6 and 7, all key intersections are expected to operate at an acceptable overall
LOS D or better with the side - street approaches operating at LOS D or better (with the exception
of the eastbound school site driveway approach to Stagecoach Trail operating at LOS F) during
the peak hours, assuming existing traffic control and geometrics under year 2015 No Build and
existing traffic control and improved geometrics for the 2015 Build conditions.
The traffic simulation model shows no future Build Condition at any of the key intersections
where school generated traffic results in significant traffic congestion or delay, except for the
eastbound approach of the site driveway to Stagecoach Trail (CR 21). The traffic simulation
model does show that from about 8:35 to 8:55 AM (20 minutes) and again from about 3:15 to
3:40 PM (25 minutes), traffic exiting the school site spills back on eastbound site driveway
approach to Stagecoach Trail and into the school site (see Figure 10). This condition does not
represent a significant adverse traffic impact to the County or Township roadway system
Table 6
St Croix Preparatory Academy Traffic Impact Study
2015 No Build Peak Hour Conditions
Level of Service Results
Level of Service
Study Area Key Intersection AM Street AM School PM School
Peak Hour Peak Hour Peak Hour
(7 -8 AM) (8 -9 AM) (3 -4 PM)
Osgood Ave. (CR 24) and 47th St. (CR 14) A!B (WB) A/B (WB) A/B (WB)
Stagecoach Tr. (CR 21) and 47th St. (CR 14) A/C (EB) A/B (EB) A/B (EB)
Stagecoach Tr. (CR 21) and Inspiration Pkwy A/B (WB) A/B (WB) A/B (WB)
All intersections are side - street stop controlled. The overall LOS is followed by the worst side - street approach LOS (direction).
Table 7
St Croix Preparatory Academy Traffic Impact Study
2015 Build Peak Hour Conditions
Level of Service Results
Level of Service
Study Area Key Intersection AM Street AM School PM School
Peak Hour Peak Hour Peak Hour
(7 -8 AM) (8 -9 AM) (3 -4 PM)
Osgood Ave. (CR 24) and 47th St. (CR 14) A/B (WB) B/C (WB) B/D (WB)
Stagecoach Tr. (CR 21) and 47th St. (CR 14) A/B (EB) A/C (EB) A/B (EB)
Stagecoach Tr. (CR 21) and Inspiration Pkwy A/B (WB) D/F (EB) B/F (EB)
All intersections are side - street stop controlled. The overall LOS is followed by the worst side- street approach LOS (direction).
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a 2015 Build nn $ ahoat Peat How 2015 SOHO Atntiwoan san aa
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Tra ffic Simu lation Shots — 2015 Afte rnoon Scho Hour
Figure 10
c.t Cro Prep Academy Screen Traffic I m pa ct Study — S tagec oach Tr ail Site Peak
0076242 December2007 Cit y of Stillwater
Carroll Davis - Johnson, Director December 20, 2007
Friends of St. Croix Preparatory Academy Page 19
SUMMARY OF FINDINGS, CONCLUSIONS AND RECOMMENDATIONS
Based on the traffic analysis, the following findings, conclusions and recommendations are
offered for your consideration:
Existing Conditions
1. All study area key intersections currently operate at an overall LOS A with the side - street
approaches operating at LOS B or better during the peak hours, assuming existing traffic
control and intersection geometrics.
2. There is not a significant study area crash problem based on a review of the available crash
history and related crash rates compared to average crash rates for similar intersections.
School Site Plan /Access Review
1. The proposed school campus site plan is generally well configured with separate student
drop- off/pick -up and school bus drop- off /pick -up areas.
2. In the interest of traffic safety, it is recommended that a southbound right -turn lane and
northbound left-turn lane be added to the intersection of Stagecoach Trail (CR 21) and
Inspiration Parkway and the school site primary access.
3. It is recommended that a preliminary design/concept layout for these intersection
improvements be prepared in order to verify that there is adequate distance between this
intersection and the existing railroad crossing (about 900 feet to the south) to develop a
standard length left-turn lane and transition tapers.
School Site Generated Traffic
1. The proposed St. Croix Preparatory Academy (K -12 Charter School) will be developed in
multiple phases. Phase One and Two will be completed by year 2010 and provide for an
estimated student population of 600 students. Phase Three will be completed by year 2015
and provide for an estimated student population of 950 students.
2. Special event trip generation estimates have not been developed for this SCPA traffic impact
study primarily because most of the school's special events are held off -site (Downtown
Stillwater and various entertainment venues and food service establishments). Special events
that may be held on -site are smaller events, broken up and scheduled by class /grade group
and therefore may not represent a significant traffic impact.
3. The directional trip distribution for the proposed SCPA school generated traffic is based on
the existing Stillwater School District distribution of households and a selected zone analysis
of the Washington County Travel Demand Model.
Carroll Davis - Johnson, Director December 20, 2007
Friends of St. Croix Preparatory Academy Page 20
Neighborhood Traffic Impacts
1. Based on the field travel time study the route through the adjacent neighborhood was
determined not to be a highly desirable route and that there would not be a significant level
of school generated traffic that would use the neighborhood route.
2. However, there may be some school generated traffic that would use the neighborhood route
on an infrequent basis and there is no guarantee that a few school generated trips would not
use the neighborhood route on a regular basis unless somehow restricted from doing so.
3. Should the Township determine that neighborhood through traffic countermeasures need to
be implemented, a westbound to northbound right -turn and southbound to eastbound left-turn
ban could be considered at the intersection of Osgood Avenue and 44th Street during the
school peak hours of 8 -9 AM and 3 -4 PM.
School Student Pedestrian Considerations
1. Based on the high speed and volume character of Stagecoach Trail (CR 21) in the vicinity of
the proposed school site and the lack of sidewalk/trail facilities in the study area, it is
recommended that all SCPA school students living within walking/bicycling distance of the
proposed school campus be provided busing due to hazardous pedestrian crossing conditions.
2. Should a future grade separated pedestrian crossing with connecting sidewalk/trail facilities
be provided within the immediate area of the school or should future traffic signal control
ever be justified at the intersection of Stagecoach Trail (CR 21) and Inspiration Parkway, the
possibility of allowing SCPA school students to walk/bike could be reconsidered
Future Conditions
1. All study area key intersections are expected to operate at acceptable overall LOS B or better
during the peak hours, assuming existing traffic control and geometrics under year 2010 No
Build and existing traffic control and improved geometrics for the 2010 Build conditions.
2. All study area key intersections are expected to operate at acceptable overall LOS D or better
during the peak hours, assuming existing traffic control and geometrics under year 2015 No
Build and existing traffic control and improved geometrics for the 2015 Build conditions.
3. The traffic simulation model shows no future Build Condition at any of the key intersections
where school generated traffic results in significant traffic congestion or delay, except for the
eastbound approach of the site driveway to Stagecoach Trail (CR 21). The traffic simulation
model does show that from about 8:35 to 8:55 AM (20 minutes) and again from about 3:15 to
3:40 PM (25 minutes), traffic exiting the school site spills back on eastbound site driveway
approach to Stagecoach Trail and into the school site. This condition does not represent a
significant adverse traffic impact to the County or Township roadway system.
H:\Projects \6306 \TS\memos \6306_ 12- 20- 07_Final.doc
APPENDIX "A" - LEVEL OF SERVICE (LOS) DESCRIPTIONS
LEVEL OF SIGNALIZED INTERSECTION UNSIGNALIZED INTERSECTION
SERVICE AVERAGE CONTROL DELAY PER AVERAGE CONTROL DELAY PER DESCRIPTION OF TRAFFIC
DESIGNATION VEHICLE (SECONDS) VEHICLE (SECONDS) CONDITIONS
A Less than or equal to 10 Less than or equal to 10 Stable Flow - Low delays; at
traffic signals most vehicles do
not stop; acceptable LOS
B > 10 -20 > 10 -15 Stable Flow - Low delays; at
traffic signals some vehicles
must stop; acceptable LOS
C > 20 -35 > 15 -25 Stable Flow - Moderate delays;
at traffic signals some cycle
failures; many vehicles must
stop; acceptable LOS
D > 35 -55 > 25 -35 Approaching Unstable Flow —
Moderate delays; at traffic
signals cycle failures become
noticeable; many more vehicles
must stop; limit of acceptable
LOS
E > 55 -80 > 35 -50 Unstable Flow - Significant
delays; at traffic signals cycle
failures are frequent; most
vehicles required to stop;
unacceptable LOS
F Over 80 Over 50 Forced Flow /Failure -
Significant delays; at traffic
signals many cycle failures
occur; most or all vehicles must
stop; unacceptable LOS
U.S. DOT - CROSSING INVENTORY INFORMATION
AS OF 11/28/2007
Crossing No.: 183824E Update Reason: Changed Crossing Effective Begin -Date of Record: 08/17/05
Railroad: UP Union Pacific RR Co. [UP ] Current Record
Initiating Agency State Type and Positiion: Public At Grade
Part I Location and Classification of Crossing
Division: TWIN CITIES State: MN
Subdivision: ALTOONA County: WASHINGTON
Branch or Line Name: City: Near BAYPORT
Railroad Milepost: 0016.28 Street or Road Name: STAGECOACH ROAD
RailRoad I.D. No.: 7320 Highway Type & No.: CSAH 21
Nearest RR Timetable Stn: LAKELAND JCT HSR Corridor ID:
Parent Railroad: County Map Ref. No.: 114
Crossing Owner: Latitude: 45.0084150
ENS Sign Installed: Yes Longitude: - 92.7948220
Passenger Service: None Lat/Long Source: Actual
Avg Passenger Train Count: 0 Quiet Zone: No
Adjacent Crossing with No
Separate Number:
Private Crossing Information:
Category: Public Access:
Specify Signs: Specify Signals:
ST /RR A ST /RR B ST /RR C ST /RR D
Railroad Use:
State Use:
Narrative:
Emergency Contact: (800)848 -8715 Railroad Contact: State Contact: (651)215 -6397
Part II Railroad Information
Number of Daily Train Movements: Less Than One Movement Per Day: No
Total Trains: 4 Total Switching: 0 Day Thru: 2
Typical Speed Range Over Crossing: From 5 to 30 mph Maximum Time Table Speed: 30
Type and Number of Tracks: Main: 1 Other 0 Specify:
Does Another RR Operate a Separate Track at Crossing? No
Does Another RR Operate Over Your Track at Crossing? Yes: MNNR
U.S. DOT - CROSSING INVENTORY INFORMATION
Crossing 183824E Continued Effective Begin -Date of Record: 08/17/05
Current Record
Part III: Traffic Control Device Information
Signs:
Crossbucks: 0 Highway Stop Signs: 0
Advanced Warning: Yes Hump Crossing Sign: No
Pavement Markings: Stop Lines and RR Xing Other Signs: 0 Specify:
Symbols 0
Train Activated Devices:
Gates: 2 4 Quad or Full Barrier: No
Mast Mounted FL: 2 Total Number FL Pairs: 0
Cantilevered FL (Over): 0 Cantilevered FL (Not over): 0
Other Flashing Lights: 0 Specify Other Flashing Lights:
Highway Traffic Signals: 0 Wigwags: 0 Bells: 2
Other Train Activated Special Waming Devices Not
Warning Devices: Train Activated:
Channelization: None Type of Train Detection: Constant Warning Time
Track Equipped with Yes Traffic Light N/A
Train Signals? Interconnection /Preemption:
Part IV: Physical Characteristics
Type of Development: Open Space Smallest Crossing Angle: 30 to 59 Degrees
Number of Traffic Lanes 2 Are Truck Pullout Lanes Present? No
Crossing Railroad:
Is Highway Paved? Yes
Crossing Surface: Concrete If Other:
Nearby Intersecting
Highway? N/A Is it Signalized? No
Does Track Run Down a
Street? No Is Crossing Illuminated? No
Is Commercial Power Available? Yes
Part V: Highway Information
Highway System: Other FA Highway - Not NHS Functional Classification of Rural Major Collector
Is Crossing on State Road at Crossing:
Highway System: No
Annual Average Daily Traffic
(AADT): 004900 AADT Year: 2002
Estimated Percent Trucks: 10 Avg. No of School Buses per Day: 12
Posted Highway Speed: 55
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