Feasibility Report

Otero Avenue Paving

Ravenna Township, Minnesota

SEH No. RAVEM 122495

December 21, 2012

Short Elliott Hendrickson Inc. | 3535 Vadnais Center Drive | Saint Paul, MN 55110-5196 SEH is an equal opportunity employer | www.sehinc.com | 651.490.2000 | 800.325.2055 | 888.908.8166 fax

December 21, 2012 RE: Otero Avenue Paving Feasibility Report Ravenna Township, Minnesota SEH No. RAVEM 122495

Ms. Caroline Spurgeon Ravenna Township 20425 Red Wing Blvd. Hastings, MN 55033

Dear Ms. Spurgeon:

Short Elliott Hendrickson Inc. (SEH) is pleased to submit this feasibility report for the Otero Avenue Paving project. This project is being proposed by petition of the residents adjacent to the project area.

The improvement that was analyzed consists of bituminous paving of Otero Avenue from Highway 316 to 6,350 west. In addition to the bituminous paving, culverts will be added to the intersection at Highway 316 to improve drainage.

This report reviews existing conditions, identifies proposed improvements and includes estimates of total project cost and cost recovery methods to evaluate the feasibility of these proposed improvements. Preliminary assessment rolls and corresponding maps are included.

The proposed improvements have been petitioned by 81percent of the property owners adjacent to the project limits. In summary, we find the project feasible and cost effective from an engineering standpoint.

The estimated total project cost is $241,100, which includes a 10% contingency, 20% for legal, fiscal, administrative, and engineering costs. The project cost is proposed to be paid 100% by assessments to adjacent and benefitting properties. The estimated assessment based on a per lot assessment of $8,310 per lot.

We recommend that the Township Council, Township Attorney, Township Appraiser, and Township Staff review this report.

We are pleased to have had the opportunity to provide this report and are available for any assistance you may require.

Sincerely, Greg F. Anderson, PE Project Manager tk s:\pt\r\ravem\122495\4-prelim-dsgn-rprts\otero ave feas.docx

Otero Avenue Paving Feasibility Report

Ravenna Township, Minnesota

SEH No. RAVEM 122495

December 21, 2012

I hereby certify that this report was prepared by me or under my direct supervision, and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.

Greg F. Anderson, PE

Date: December 21, 2012 Lic. No.: 26859

Reviewed by: Anthony J. Kutzke December 21, 2012 Date

Short Elliott Hendrickson Inc. 3535 Vadnais Center Drive Saint Paul, MN 55110-5196 651.490.2000

SEH is a registered trademark of Short Elliott Hendrickson Inc. Feasibility Report RAVEM 122495 Ravenna Township, Minnesota Page i

Table of Contents

Letter of Transmittal Certification Page Title Page Table of Contents

Page

1.0 Introduction ............................................................................................................. 22.0 Existing Conditions ................................................................................................ 23.0 Proposed Improvements ........................................................................................ 34.0 Cost Summary and Recovery................................................................................. 35.0 Project Schedule ..................................................................................................... 46.0 Conclusions and Recommendations ..................................................................... 4

List of Appendices Appendix A Location Map - Typical Pavement SectionAppendix B Detailed Preliminary Cost EstimatesAppendix C Preliminary Assessment Roll

December 21, 2012

Feasibility Report RAVEM 122495 Ravenna Township, Minnesota Page 2

Feasibility Report

Otero Avenue Paving

Prepared for Ravenna Township, Minnesota

1.0 Introduction

A Feasibility Study was authorized for the Otero Avenue Paving Project by the Ravenna Township Board at the October 11, 2012 Board meeting.

A petition to pave Otero Avenue was received by the Ravenna Township Board in the Fall of 2012. Out of 29 property owners, 81% said yes to pave Otero Avenue and 19% said no. Otero Ave is public right-of-way that requires a 75 percent petition in favor of the project by adjacent property owners for the board to consider the project.

The type of improvement studied in this report is bituminous paving of the existing gravel road. Factors determining the type of improvement are outlined in this study. The assessable lots were determined based on benefitting properties fronting the project area.

2.0 Existing Conditions Otero Avenue is a rural section roadway with a gravel surface from Highway 316 to a point approximately 6,350 feet west. The existing roadway has a gravel surface width of 22 feet which widens to 26 feet at the intersection of Highway 316. The roadway section has ditches on both sides to convey stormwater runoff. Guardrail exists on both sides of Otero Avenue at the intersection of Highway 316. Existing slopes on both sides of the pavement edge vary.

Two inches of class 5 aggregate base was added to the section of roadway in 2012. The existing gravel and base section are in good condition and appear to have good stability and strength. Highway 316 is a bituminous roadway and Otero Avenue is a bituminous surface at a point 6,350 feet west of Highway 316. Existing driveway surfaces along Otero Avenue are gravel and bituminous with variable grades to the roadway edge.

All of the proposed streets to be improved have existing public and private utility systems within their rights-of-way. Private utilities include gas, telephone, electricity and cable television/internet. The owners of these private utilities will be notified of the proposed improvements. Given the fact that these private utilities are most often buried in the grass area between the outside edge of the street and the right-of-way line, it is anticipated that their utilities will not be disturbed by this project. This section of roadway does not have exiting sanitary sewer or water main. Existing storm sewer utilities include ditches and culverts to convey storm water runoff.

Feasibility Report RAVEM 122495 Ravenna Township, Minnesota Page 3

3.0 Proposed Improvements Appendix A, Figure 1 indicates the proposed street improvement location and Figure 2 shows the proposed typical section for the Otero Avenue Paving Project.

Bituminous paving of the gravel road section of Otero Avenue is the petitioned improvement for this project. The paving will match existing bituminous pavement at Highway 316 and end at the existing bituminous pavement 6,350 feet west of Highway 316. The proposed paving consists of a rural roadway section with a width of 22 feet, matching the existing gravel width. The bituminous pavement will be 26 feet at the intersection of Highway 316 to match the existing roadway width between the guardrails along Otero Avenue.

Prior to bituminous paving, the gravel surface will be graded to smooth the existing surface and to provide an adequate crown along the roadway centerline. The existing gravel surface will be compacted to achieve a stable base for the pavement. The proposed pavement is a 2.5 inch thick wearing course. A 2.5 percent cross slope is the typical pavement grade used to improve drainage from the paved roadway surface.

The pavement structure and strength are restored by adding the bituminous pavement surface. This type of improvement will improve drainage, increase rideability, and reduce frequency of maintenance required on the roadway section. Appendix A, Figure 2 indicates the proposed typical section. A 2 foot gravel shoulder will be added to the proposed bituminous edge. The shoulder will support the pavement edge and help extend the life of the pavement.

Existing driveways along the project are mostly gravel surfaces with three driveways being bituminous surfaces. Existing bituminous driveway elevations will be matched with the proposed roadway pavement. A three foot pavement extension will be added at driveways and mailboxes to reduce gravel tracking onto the new pavement surface, and to provide support for mail delivery vehicles at mailbox locations. All gravel driveways will need some amount of aggregate surfacing applied to create a uniform transition to the new pavement.

Storm water runoff is currently conveyed through a series of ditches and culverts. The ditches and culverts will remain. Culverts will be added under the two driveways west of Highway 316 to improve drainage in the area.

No additional right-of-way or easements are anticipated for these improvements.

4.0 Cost Summary and Recovery The proposed improvements and costs in this report were based on field observations and analysis done in November 2012. Minor changes in the existing conditions are not anticipated over the winter months, but if any changes occur, they could affect the estimated project costs outlined in this report.

Estimated project costs have been projected for the Otero Avenue Paving studied in this report. Detailed estimated construction costs were prepared and are included in Appendix B. Total project costs include estimated construction costs, a 10 percent contingency, and 20% for legal, fiscal, administration and engineering.

The total estimated project cost for these improvements is $241,100. The project cost is to be paid 100% by assessments to the benefitting adjacent properties. It is anticipated that the bidding environment will be favorable to the Township in 2013. Preliminary assessment roles with the corresponding maps are included in Appendix C.

Feasibility Report RAVEM 122495 Ravenna Township, Minnesota Page 4

Proposed assessments are calculated on a per unit basis. This method of assessment is very appropriate when all lots are of similar use, size and vintage. The total number of units on the project is 29 units resulting in an estimated assessment for each unit of $8,310.

Assessments may be paid in full at the time the assessments are approved by the Town Board or within 30 days after the assessments are approved. Remaining assessment balances after 30 days are then certified to Dakota County to be collected with property taxes based on equal principal installments. All assessment balances would also include an interest charge from the date of adoption of the assessment rolls at a minimum interest rate of 8% or as established by the Township Board.

5.0 Project Schedule A proposed Project Schedule is as follows:

Township Board Receives the Feasibility Report, holds the Public Hearing, and Orders Plans and Specifications ............................................................................................ January 24, 2013

Informational Open House with Residents................................................... February, 2013 Township Board Approves Plans & Specs .................................................. March 28, 2013 Authorize Advertisement for Bids .............................................................. March 28, 2013 Receive Bids .................................................................................................. April 23, 2013 Township Board Reviews and awards Bids .................................................. April 25, 2013 Construction Begins (estimated) .................................................................... June 10, 2013 Assessment Hearing Notices sent to Newspaper

and to Residents ................................................................................................... July, 2013 Construction Ends (estimated) ..................................................................... August 1, 2013 Township Board holds Assessment Hearing (estimated) ................................ August, 2013

6.0 Conclusions and Recommendations From the results of our study and investigations, it is concluded that:

1. The existing roadway base and gravel section are in good condition.

2. A bituminous paving of the existing gravel roadway is an appropriate improvement for this roadway.

3. Bituminous paving will improve roadway drainage, rideability, and reduce maintenance frequency on the roadway section.

4. The improvements have been petitioned by 81% of the property owners in favor of the project which meets the Townships minimum of 75% petitioning.

5. The project is feasible from an engineering standpoint, as the existing gravel roadway is in good condition.

6. The project is cost effective, as the improvements will utilize the existing gravel roadway sections. Any necessary storm sewer improvements will be made with minimal excavation and disruption.

7. The total estimated cost for all of these street improvements is $241,100 with the total cost assessed to the benefiting properties.

Feasibility Report RAVEM 122495 Ravenna Township, Minnesota Page 5

In considering the foregoing conclusions, it is recommended that:

1. The Township Board and staff review this feasibility report for the Otero Avenue Paving. A public hearing should be held as soon as practical if the Board deems feasible to improve.

2. The improvements as proposed should be constructed as outlined in this report.

3. The costs of the improvements be recovered from 100% assessment of benefited properties. The ability to assess the amounts proposed should be verified.

4. The Township Board, Township attorney, Township staff, Township financial consultant, and the Township appraiser review this report.

Appendix A Location Map - Typical Pavement Section

Parcel Map

Orono Tr

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Project: RAVEM 122495

Figure1

3535 VADNAIS CENTER DR.ST. PAUL, MN 55110

PHONE: (651) 490-2000FAX: (888) 908-8166TF: (800) 325-2055

www.sehinc.com

Otero Avenue PavingMap by: srhProjection: UTM 15 Zone 15Source: MnGEO aerial 2010, MnDOT, Dakota County, and SEH Inc.

Print Date: 12/21/2012

Ravenna Township, MinnesotaThis map is neither a legally recorded map nor a survey map and is not intended to be used as one. This map is a compilation of records, information, and data gathered from various sources listed on this map and is to be used for reference purposes only. SEH does not warrant that the GeographicInformation System (GIS) Data used to prepare this map are error free, and SEH does not represent that the GIS Data can be used for navigational, tracking, or any other purpose requiring exacting measurement of distance or direction or precision in the depiction of geographic features. The user of thismap acknowledges that SEH shall not be liable for any damages which arise out of the user's access or use of data provided.

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Legend

Parcels

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Project Area0 600 1,200300

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Appendix B Detailed Preliminary Cost Estimates

Ravenna Township, MINNESOTAOtero Avenue Paving

SEH FILE 122495

Otero Avenue Paving Cost Estimate

1 MOBILIZATION LS $8,693.00 1.00 $8,693.00

2 SALVAGE AND REINSTALL MAILBOX EACH $100.00 47 $4,700.00

3 SAWCUT BITUMINOUS FULL DEPTH LF $5.00 80 $400.00

4 SUBGRADE PREPARATION RD STA $100.00 64 $6,400.00

5 TOPSOIL BORROW (CV) CY $20.00 120 $2,400.00

6 AGGREGATE BASE, CLASS 5 (SHOULDERING) CY $25.00 255 $6,375.00

7 BITUMINOUS WEAR TYPE LV WE 45030B (DRIVEWAY) TON $64.00 50 $3,200.00

8 BITUMINOUS WEAR TYPE LV WE 45030B TON $64.00 2,130 $136,320.00

9 15" CMP CULVERT LF $30.00 50 $1,500.00

10 18" CMP CULVERT LF $40.00 60 $2,400.00

11 4" SOLID LINE WHITE - EPOXY LF $0.30 12,700 $3,810.00

12 4" DOUBLE SOLID LINE YELLOW - EPOXY LF $0.65 6,350 $4,127.50

13 TRAFFIC CONTROL LS $1,500.00 1.00 $1,500.00

14 HYDROSEEDING SY $1.50 490.00 $735.00

$182,560.50

$18,256.05

$200,816.55

$40,163.31

$240,979.86

+10% CONSTRUCTION CONTINGENCIES

ESTIMATED CONSTRUCTION COST

TOTAL ESTIMATED COST

SUBTOTAL

+20% LEGAL, FISCAL, ADMINISTRATION & ENGINEERING

ITEM NO. UNIT UNIT PRICE

ESTIMATED QUANTITYITEM DESCRIPTION

TOTAL

ESTIMATED COST

12/28/2012 11:05 AM Fig. 1 Page 1

Appendix C Preliminary Assessment Roll

ASSESSMENT ROLLRavenna Township, MinnesotaSEH No. 122495

TOTAL COST OF OTERO AVENUE PAVING PROJECT $240,979.86

/TOTAL ASSESSABLE PROPERTY UNITS 29

ASSESSMENT RATE PER UNIT = $8,309.650

OTERO AVENUE PAVING BREAKDOWNUnique ID Address P.I.N. Assessable Units Assessment Rate Proposed Assessment

1 20495 OTERO AVE 037-335350001010 1 $8,309.650 $8,309.652 20525 OTERO AVE 037-335350002010 1 $8,309.650 $8,309.653 20555 OTERO AVE 037-335350003010 1 $8,309.650 $8,309.654 20585 OTERO AVE 037-335350004010 1 $8,309.650 $8,309.655 20615 OTERO AVE 037-335350005010 1 $8,309.650 $8,309.656 20645 OTERO AVE 037-335350006010 1 $8,309.650 $8,309.657 14923 JACOB AVE 037-335350007010 1 $8,309.650 $8,309.658 20705 OTERO AVE 037-335350008010 1 $8,309.650 $8,309.659 20735 OTERO AVE 037-335350009010 1 $8,309.650 $8,309.6510 20765 OTERO AVE 037-335350010010 1 $8,309.650 $8,309.6511 20795 OTERO AVE 037-335350011010 1 $8,309.650 $8,309.6512 20825 OTERO AVE 037-335350012010 1 $8,309.650 $8,309.6513 20855 OTERO AVE 037-335350013010 1 $8,309.650 $8,309.6514 20885 OTERO AVE 037-335350014010 1 $8,309.650 $8,309.6515 20915 OTERO AVE 037-335350015010 1 $8,309.650 $8,309.6516 20945 OTERO AVE 037-335350016010 1 $8,309.650 $8,309.6517 20925 POLK AVE 037-335350017010 1 $8,309.650 $8,309.6518 20950 OTERO AVE 037-335350014020 1 $8,309.650 $8,309.6519 20940 OTERO AVE 037-335350013020 1 $8,309.650 $8,309.6520 20924 OTERO AVE 037-335350012020 1 $8,309.650 $8,309.6521 20900 OTERO AVE 037-335350011020 1 $8,309.650 $8,309.6522 20840 OTERO AVE 037-335350010020 1 $8,309.650 $8,309.6523 20810 OTERO AVE 037-335350009020 1 $8,309.650 $8,309.6524 20750 OTERO AVE 037-335350008020 1 $8,309.650 $8,309.6525 20660 OTERO AVE 037-335350007020 1 $8,309.650 $8,309.6526 20620 OTERO AVE 037-335350006020 1 $8,309.650 $8,309.6527 20600 OTERO AVE 037-335350005020 1 $8,309.650 $8,309.6528 20550 OTERO AVE 037-335350004020 1 $8,309.650 $8,309.6529 20510 OTERO AVE 037-335350003020 1 $8,309.650 $8,309.65

Total Assessable Units 29 Total Assessment $240,979.85

Note: All dollar amounts except assessement rate are rounded to the nearest cent.

OTERO AVENUE PAVINGRESIDENTIAL UNIT METHOD

ASSESSMENT CALCULATIONS

12/28/2012 11:06 AM