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HomeMy WebLinkAboutReport for 1994 Street Program Jan 1994q Co ark ghts ~iesota Report for 1994 STREET PROGRAM P,C:CA P. Street and Storm Severer Improvements Oak Park Heights, Minnesota January 1994 File No. 55113 JA Bonestroo Rosene ® Anderlik & Associates Engineers & Architects St. Paul• Milwaukee Bonestroo Rosene Anderlik & Associates Engineers & Architects January 3, 1994 Otto G. Bone4mn P.E. Hp arcl A. Sant. P.E. Mkhael P Rat, PE, Robert W. Rosen, RE, Keith A. Gordon. P.E. Philip J. Pyne. P.E. Joseph C. AnGerRk, P.E. Roots R. P"be. P.E. Agnes M. Ring. A.C.P. Marvin L Si P.E. Richard W. Poster, P.E. Thomas W Peceam. PE, Richard E. Tune. P.E. David O Loskpta, P.E. Michael C Lyncri. P.E. Glenn R. Cook RE Robert C. RusseK A I A. James R. Maland. P.E. Thomas E. Noyes. PE, Jerry A. Bourdon. P.E. Deny D. Perech. P.E. Roden G. Sch✓r M. PE. Mark A. Hanson. RE. Kenneth P. ArWerson. P.E. Susan M. Ebenln. CPA, Michael T. Rautmann. PE, Mark R. Rolfe, P.E. - Senor Consultant Ted K. Field. PE, Mark A Seip, PE. Thomas R. Anderson. A.I.A. Gary W Morien. PE. Donald C. Surgard[. P.E. Darnel J. Edgerton. PE Thomas E. Angus, P.E. Allan Rick Scnmklt. PE. Ismael Mardna. PE. Philip J. Casv fl. PE. Honorable Mayor and City Council City of Oak Park Heights P. O. Box 2007 Oak Park Heights, Minnesota 55082 Re: 1994 Street Resurfacing Program Storm Sewer and Street Improvements Our File No. 55113 Dear Mayor and Council Members: Mart D. WNIS PE. Miles S. Jensen, P.E. L. PhOIp Grevvl RI. P.E. Karen L. Wserri P.E. Gary D. Kds[M¢ P.E. E Todd Foster, P.E. Keith R. yapp P.E. Douglas A eenok. P.E. Shaun D. Gustafson. RE Cecko Oovrer, P.E. Chars A. Erickson Leo M. Pavansky Harlan M. of= James F Engelhardt Attached is our report for the 1994 Street Resurfacing Program. The report is the result of the Comprehensive Street Plan prepared last fall. This report discusses the proposed storm sewer and street improvements and presents cost estimates for these improvements. Also included are the estimated assessment rates and a list of properties proposed to be assessed. We will be pleased to meet with the Council and other interested parties to discuss this report at a mutually convenient time. Respectfully submitted, BONESTROO, ROSENE, ANDERLIK & ASSOCIATES, INC. � Mark Hanson, P.E. MAH:kf I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. .. k.• ;5113 Date: January 3, 1994 Reg. No. 6971 2335 West Highway 36 • St. Paul, MN 55113 • 612 - 636 -4600 Table of Contents Letter of Transmittal Table of Contents Scope Figure No. 1 - Location Plan Feasibility and Recommendation Street Evaluation Discussion Street Storm Sewer Sanitary Sewer and Water Main Driveway Reconstruction Easement and Permits Area to be Included Cost Estimate Assessments Revenue Project Schedule Appendix A - Results of Street Evaluation Appendix B - Area to be Assessed Appendix C - Preliminary Cost Estimate Appendix D - Sample Assessment Calculations Figures 2 -3 Proposed Street Improvements Figure 4 Proposed Storm Sewer Improvements Figure 5 Pavement Condition Index Figures 6 -7 Area to be Assessed 1 2 3 4 5 5 7 7 7 8 8 8 9 10 11 14 15 Oak Park Heights - 1994 Street Resurfacing Program 2 Scope This project provides for the resurfacing/reconstruction of 3.2 miles of residential streets in the southwest portion of the City (see Figure No. 1). The proposed construction includes new concrete curb and gutter, street resurfacing, street reconstruction, and storm sewer improvements. Details are shown on Figures 2 through 4 at the back of this report. This project is the result of the 1993 Comprehensive Street Report which examined the surface condition and subsurface strength of each street in the project. The surface evaluation determined the Pavement Condition Index (PCI) which ranks each street based on its condition. The subsurface strength evaluation determines a recommended structural improvements for a given axle loading based on a load applied to the existing street. The 1993 Comprehensive Street Report addressed the needs for rehabilitating the older streets in the City. This project is the first of five recommended street resurfacing projects for Oak Park Heights. All streets included under this project are streets which presently do not have concrete curb and gutter. New concrete curb and gutter will be installed as part of this project. The new concrete curb and gutter will improve drainage characteristics and prolong the life of the newly reconstructed streets. Y f'0w -Y' Also included in this project are storm sewer improvements to collect drainage and reduce the amount of drainage carried in the gutter. These improvements consist of extending existing storm sewers to intersections where no drainage collection presently exists. Preparation of this report was authorized by the City Council on November 22, 1993 with Resolution #93- 11 -43. Oak Park Heights - 1994 Street Resurfacing Program 3 �J va` 61 si 61st ST. N \ ST. CT. 60th ST. N JJ � STATE T.H. 36 r _ I11J w Z ns_ Q Z Z Q > W Q W Q � Q Q W � Z � Z W lL J w Q w Z Z , 57th ST N Exii Y mj C Z Q O4 i Q 4 0 56th ST V 56th ST. N. --� OLDFIELb JQe� T v B Lj COURT ,• In I v�"mc•..�mxmq'.:pmce v .. Sao Scale � Scale n lest 2 iz W U Z W 0 W Z W 0 a a N 0 SSth ST. c-1FM LOCATION PLAN (Project Location a mmm ) 8onestroo 0 Rosene OAK PARK HEIGHTS, MINNESOTA FIGURE 1 A s Ass socisoci att es 1994 STREET PROGRAM K: \55 \55113 \55113FO7 JANUARY 1994 COMM. 55113 Feasibility and Recommendation This project is feasible from an engineering standpoint and is in accordance with the Comprehensive Street Plan for the City of Oak Park Heights. The project can best be carried out as one contract. The contract will include 3.2 miles of residential streets and related utility improvements. Street Evaluation Streets recommended for resurfacing and reconstruction are shown on Figure No. 2 located at the back of this report. Appendix A and Figure No. 5, also located at the back of this report, summarize the results of the earlier Pavement Strength and Surface Evaluation Studies completed for the Comprehensive Street Plan. Three items are considered in determining the condition of an existing street: Street age —2O 1 Y 30cLk >nzox J6 ` 25fV Structural strength (recommended structural overlay thickness) 1 V4 - n • Surface Evaluation (PCI Ranking) In accordance with engineering standards, the recommended life of a street is 20 years, based on the anticipated life of the materials (aggregate base, bituminous, and concrete) used to build that street. However, many factors contribute to whether a street will function adequately beyond or less than a 20 year period. In the case of this project, the age of each street exceeds 16 years while many of the streets exceed 25 years. The desired minimum structural strength of a local street is 7 ton while a commercial collector street is 9 ton. As presented in Appendix A, a majority of the streets evaluated require area repair or a bituminous overlay to meet the required axle loading. The recommended improvements are based on the subgrade condition and existing street section Effective Granular Equivalence (EGE). The desired granular equivalence for Oak Park Heights - 1994 Street Resurfacing Program 5 1 a residential street is approximate 14 to 17. A noted in Appendix A, many of the EGE are below 17. In areas where t s below 14, some subgrade correction work will be necessary to improve the subgrade strength. The final and most important consideration in evaluating an existing street is the condition of its existing surface. The Pavement Condition Index (P CI) ranks the condition of each street surface. Figure No. 5 at the back of this report presents the PCI ratings for the streets in this project. Table 1 presents general categories to define PCI Rankings. Table 1 - General Categories to Define PCI Rankings PCI Condition of Street Maintenance 55 -100 Good to Very Good Routine Crack Seal and Seal Coat 35-55 Fair Major Repair Patch & Overlay 0 -35 Very Poor Overall Repair (Reconstruction) In general, )`CI13 below 35 require removal of the existing bituminous pavement before constructing a new bituminous surface. The existing aggregate base may also have to be reconstructed (subgrade correction). P (rI rankings between 35 and 55 require bituminous surface removal or major patching before constructing a bituminous overlay. PCi raakWgs wPr�S t<• lly do not require bituminous overlays and generally routine maintenance such as patching, crack sealing, and seal coats are cost effective. As noted in Appendix A, and on Figure 5, many of the PCI rankings are below 55, while some of the PCI rankings are below 35. Based on the PCI rankings for each street included in the project area, and the fact that new concrete curb and gutter is proposed, total removal of the existing bituminous is recommended. Some streets will require removal of the existing aggregate base and subgrade improvements as well. Oak Park Heights - 1994 Street Resurfacing Program 6 Discussion Streets All street resurfacing and reconstruction proposed under this project will be where no concrete curb and gutter presently exists. New concrete curb and gutter will be placed as part of the project. To effectively resurface these streets, a number of surface preparation steps must be taken prior to placement of the new concrete curb and gutter. Surface preparation includes the removal or milling of the existing bituminous surface. Subgrade correction (removal and reconstruction of the existing aggregate base and some subgrade) is required where the existing street section has failed. It is estimated that 35 to 40 percent of the existing streets will require some subgrade correction work. Upon completing the concrete curb and gutter placement for each street, a new 3" thick bituminous surface will be constructed. Included in the paving process is the adjustment of manholes and gate valves to the finished surface elevation. Finally, all necessary sodding and restoration is completed to restore the area to its original condition. Proposed street improvements are shown on Figures 2 and 3 at the back of this report. Storm Sewer Included as part of the 1994 Street Resurfacing Program are storm sewer improvements as shown on the attached Figure No. 4. The storm sewer improvements include extensions to the existing storm sewer system to improve street drainage and provide greater inlet capacity. It is recommended the storm sewer be constructed at this time to to eliminate the need to disturb the street surface in the future and to prolong the life of the street. It is also recommended that the upstream drainage area from the end of the storm sewer system be no larger than 5 acres. As part of the public notice process, the City may want to ask residents to state if they have sump pumps and where they presently discharge. It is hoped that the storm sewer extensions can reduce the number of sump pumps discharging to the sanitary sewers. Oak Park Heights - 1994 Street Resurfacing Program 7 Sanitary Sewer and Water Main Miscellaneous sanitary sewer and water main repairs and replacements are included as part of this project. During the design phase, the City should consider televising the sanitary sewer in the project area to determine if any major repairs are necessary. For the purposes of this report, we have estimated the amount of water and sewer repairs typically required for this type of project. Further review of these items will be completed during the final design for the project. Driveway Reconstruction Due to the new concrete curb and gutter construction, driveway and boulevard restoration is required. Driveway restoration will include reconstructing the lower portion of the existing driveway to match the new concrete curb and gutter. Any disturbed portion of existing driveways will be reconstructed of the same material to an equal or better condition. Easements and Permits The proposed construction will be completed within existing right -of -way and easements. In areas where narrow or questionable right -of -ways exist, construction will be limited to replacing the roadway to its existing width. Therefore, we assume that no additional right -of -way or easements will be necessary. A permit from, Mn/DOT will be required for the storm sewer between Oldfield Avenue and Olene Avenue along the T.H. 36 service road. Oak Park Heights - 1994 Street Resurfacing Program 8 Area to be Included The area to be included for assessment purposes is listed in Appendix B and shown on Figure 6, located at the back of this report. Figure 7 presents a detail of the assessment area near Olinda and Olene Avenues. Properties in this area must be notified for the project hearings. Oak Park Heights - 1994 Street Resurfacing Program 9 Cost Estimate A detailed cost estimate is presented in Appendix C. A summary of these costs is shown in Table 2 below: Table 2 - 1994 Streets Cost Summary 300 L4 +j Street Resurfacing/Reconstruction $894 600 Concrete Curb and Gutter o yy,.]Sd4� 459,800 Storm Sewer Extension 261,200 Sanitary Sewer and Water Main nos 30,000 Total $1,645,600 The total estimated project cost is $1,645,600 and includes contingencies and all related overhead. Overhead costs are estimated at 25% and include legal, engineering, administration, and bond interes The estimated costs for sanitary sewer and water main are based on previous experience with similar projects. Oak Park Heights - 1994 Street Resurfacing Program 10 Assessments Assessments are proposed to be levied against the abutting benefited property. Assessment rates for street resurfacing/reconstructing are proposed to be levied based on the rate classifications shown below: Assessment Rate Classifications Residential Curb (75% of total curb cost) Commercial/Industrial Curb (75% of total curb cost) Residential Street (50% of total street costs) Commercial/Industrial Street (50 % of total street costs) Assessment rates will be determined based on the actual final project costs. Estimated assessment rates in this report are based on the cost estiamtes in Appendix C. Residential property will be assessed on a unit (per lot) basis. Multiple residential will be assessed 0.6 of a residential unit for each multiple unit. Comm ercial/Industrial property will be assessed on a front foot basis. The assessable footage is determined in accordance with the Oak Park Heights Comprebensive Street Plan. After reviewing this project, it was determined to assess each lot an equal share of the project costs (on a per lot basis). Assessments are separated as 'concrete curb and gutter" and "street resurfacing" to reflect different City participation for these two items. It is assumed, for purposes of this report, that storm sewer extensions and sanitary sewer/water main repairs will not be assessed. The front foot rates are based on a total assessable footage of 24,870 feet. Assessable footages for commercial and City property are shown on Figures 6 and 7. The estimated assessment rates for the 1994 Street Resurfacing Program are presented in Table 3 below. Assessment rates presented herein will be revised based on final project costs. Oak Park Heights - 1994 Street Resurfacing Program 11 Table 3 - 1994 Street Resurfacing Assessment Rates Assessment Residential Rate Commercial/Industrial Rate Concrete Curb /Gutter $1,146.92 per unit $13.87/FF Street Resurfacing $1,498.13 per unit $17.99/FF Total $2,645.05 per unit $31.86/FF Based on the estimated assessment rate for concrete curb /gutter and street resurfacing, the approximate assessment to residential property is as follows: Concrete Curb and Gutter Street Resurfacing Total Assessment/Lot $1,146.92 3 $2,645.05 Assuming an inte rate of 7_% and a 10 year assessment perio the annual assessment payment for a residential property would be as follows: Assessment - $2,645 Principal Interest Per Year Per Month 1st Year $265 $185 $450 $38. 10th Year 265 19 284 24 f Table 4 below lists the assessable footages for commercial property and the net residential equivalent units for multiple residential property. Oak Park Heights - 1994 Street Resurfacing Program 12 Table 4 - Commercial and Multiple Properties Property Assessable Footage or Number of Equivalent Units RLS70 TRACT A (City Hall) 194.96 ft. PID 60004 -3700 (Oak Park Plaza) 120.0 ft. PID 61339 -2000 (NAPA Bldg.) 380.0 ft. PID 60004 -4000 (Rouston GMC) 300.0 ft. PID 60004 -4200 (VFW Property) 75.0 ft. St. Croix Mall PUD Lot 8 17525 ft. St. Croix Mall PUD Lot 9 319.20 ft. St. Croix Mall PUD Lot 10 66.0 ft. Total 1630.41 ft. PID 61343 -2650 (5886 Olinda) 2.4 equivalent units PID 60004 -3400 (5887 -89 Olinda) 1.2 equivalent units PID 60004 -3550 (5880 -86 Olene) 12 equivalent units PID 61343 -2550 (14386 58th St.) 2.4 equivalent units PID 61343 -2765 (5802 Olene) 0.6 equivalent units PID 61343 -2762 (5804 Olene) 0.6 equivalent units PID 61343 -2759 (5806 Olene) 0.6 equivalent units PID 61343 -2761 (5808 Olene) 0.6 equivalent units PID 61343 -2760 (5810 Olene) 0.6 equivalent units PID 61343 -2763 (5812 Olene) 0.6 equivalent units PID 61343 -2750 (5814 Olene) 0.6 equivalent units PID 61343 -2755 (5816 Olene) 0.6 equivalent units A detailed calculation of the estimated assessment rates is presented in Appendix D at the back of this report. Oak Park Heights - 1994 Street Resurfacing Program 13 Revenue A summary of revenue sources is listed in Table 5 below: Table 5 - Revenue Sources The anticipated project deficit is $974,611 which includes $261,200 for storm sewer extensions, $30,000 for sanitary sewer/water main, $450,807 for streets, and $232,604 for concrete curb /gutter improvements. Oak Park Heights - 1994 Street Resurfacing Program 14 Project Cost Revenue Net Curb and gutter $459,800 $227,196 (Assmts) ($232,604) Street Resurfacing 894,600 443,793 (Assmts) (450,807) Storm Exts. and Drainage Impr. 261,200 0 (261,200) Sanitary Sewer and Water Main 30,000 0 (30,000) Driveway Reconstruction 0 0 0 Totals $1,645,600 $670,989 ($974,611) The anticipated project deficit is $974,611 which includes $261,200 for storm sewer extensions, $30,000 for sanitary sewer/water main, $450,807 for streets, and $232,604 for concrete curb /gutter improvements. Oak Park Heights - 1994 Street Resurfacing Program 14 Schedule Project Schedule Present Feasibility Report January 24, 1994 Public Hearing February 14, 1994 Approve Plans and Specifications March 28, 1994 Award Contract April 25, 1994 Begin Construction May 9, 1994 Substantial Completion August 5, 1994 Construction Completion September 17, 1994 Assessment Hearing October 10, 1994 Oak Park Heights - 1994 Street Resurfacing Program 15 I I I I I I] I I I I n, 2� �r m v 7d �i d A r N . U C O n O C !S 4 L" ❑ a a a a a a d a > a a c > q uk G 'C a r a rn rn ao o. r o, c+ 00 0+ oo 4 U d y \ kq N � U z ; M O N O ti O O N N • N . � . . •-r y C L'a 9 u \p M M Vt M M M \D [� M \O •! •-! \D \D y� � a•• C G U W N o N N N N r M 'cf r v N 0 c y 0 2 9 o y °J u a � m ❑ U _ zy o o ❑ R: ti ai U G � W e b O d d o c In O C �e V) Z •o 1 w ° •o v `v ti p C1❑.� O C (n 0 > ° cn a � O O a C C O � � ° O � ° � U � `• �❑ C O v � in in U c 9 Z A Q C6 Un Un a a a � � s ro b o b v a � � � 0 C C APPENDIX B PROPOSED ASSESSMENT AREA 1994 STREET RESURFACING PROJECT OAK PARK HEIGHTS, MINNESOTA PARCEL DESCRIPTION Platted Parcels Alberts Addition Block 1 Lots 1 -9 Block 2 Lots 1 -8 Swager Bros. Addition Block 1 Lots 1 -7 Block 2 Lots 1 -6 Swager Bros. 2nd Addition Block 1 Lots 1 -5 Block 2 Lots 1 -19 Swager Bros. 3rd Addition Block 1 Lots 1 -12 Block 2 Lots 1 -2 Block 3 Lots 1 -7 Block 4 Lots 1 -5 Swager Bros. 4th Addition Block 1 Lots 1 -7 Block 2 Lots 1 -7 Swager Bros. 5th Addition Block I Lots 1 -12 Block 2 Lots 1 -7 Block 3 Lots 1 -7 Swager Bros. 6th Addition Block 1 Lots 1 -14 Block 2 Lots 1 -18 Block 3 Lots 1 -12 Swager Bros. 7th Addition Block 1 Lots 1 -5 Block 2 Lots 1 -5 Block 3 Lots 1 -9 Block 4 Lots 1 -4 Swager Bros. 8th Addition Lots 1 -4 Brekke's Garden Hills Block 1 Lots 1 -21 Block 2 Lots 1 -10 Block 3 Lots 1 -6 Brekke Heights Block 1 Lots 1 -7 Block 2 Lots 1 -6 St. Croix Mall P.U.D. Block 1 Lots 7, 8, 9, 10 Oak Park Heights - 1994 Street Resurfacing Program B -1 Registered Land Survey (R.LS.) N '/z Section 4 T 29 R 20 R.L.S. No. 19 Tract A, B, C, D, F, G, H, I, J R.L.S. No. 53 Tract A, B, C, E, G, H, I, J R.L.S. No. 70 Tract A R.L.S. No. 76 Tract A, B, C, D, E, F, G, H, I, J, K, L, M Unplatted Parcels North '/2 Section 4 T 29 R 20 Parcel 2900 Parcel 3400, 3410, 3450, 3550, 3600, 3650, 3700, 3750, 3800, 3850, 3950, 4000, 4200 Oak Park Heights - 1994 Street Resurfacing Program B -2 APPENDIX C PRELIMINARY COST ESTIMATE 1994 STREET RESURFACING PROJECT OAK PARK HEIGH'T'S, MINNESOTA A. Street I IS Traffic control @ $5,000.00/ls $ 5000.00 63,000 SY Remove /mill bituminous pavement @ $1.50 /sy 94,500.00 100 LF Remove existing concrete curb & gutter @ $2.00/lf 200.00 64,000 SY Aggregate base preparation @ $2.00 /sy 128,000.00 16,000 SY Cl. 5 aggregate base, 100% crushed limestone (with excavation) @ $9.00 /tn 144,000.00 5,300 TN Type 31 bituminous wear course @ $23.00 /tn 121,900.00 5,300 TN Type 41 bituminous wear course @ $24.50/tn 129,850.00 4,800 GL Bituminous material for tack coat @ $1.00 /gl 4,800.00 40 EA Adjust GV structures @ $130.00 /ea 5,200.00 115 EA Adjust manhole or catch basin @ $300.00 /ea 34,500.00 500 SY Sod with topsoil @ $2.25 /sy 1,125.00 2,000 LF 4" PE drain pipe @ $6.00/lf 12,000.00 Total $681,600.00 + 5% Contingency 34.100.00 $715,700.00 + 25% Legal, Engrg., Admin., & Bond Int. 178.900.00 Total Street Resurfacing $894,600.00 B. Concrete Curb and Gutter 35,000 LF Concrete curb & gutter @ $6.00/lf $210,000.00 13,500 SY Sod with topsoil @ $2.25/sy 30,375.00 220 EA Driveway Repairs @ $500.00 /ea 110.000.00 Total $350,375.00 + 5% Contingency 17.525.00 $367.900.00 + 25% Legal, Engrg., Admin. & Bond Int. 91.900.00 Total Concrete Curb and Gutter $459,800.00 Oak Park Heights - 1994 Street Resurfacing Program C_1 APPENDIX C (CONYD) C. Storm Sewer Extensi &Drainage Improvements 200 LF 12" RC pipe with bedding in place @ $18.00/lf $ 3,600.00 3,500 LF 15" RC pipe with bedding in place @ $20.00/lf 70,000.00 1,450 LF 18" RC pipe with bedding in place @ $23.00/lf 33,350.00 28 EA Standard CB w /casting @ $900.00 /ea 25,200.00 14 EA Standard MH w /casting @ $1,000.00 /ea 14,000.00 13 EA Reconstruct catch basin @ $300.00 /ea 3,900.00 5 EA Connect to existing structure @ $745.00/ea 3,725.00 500 LF 4" PE perforated drain pipe @ $6.00/If 3,000.00 3,900 TN Cl. 5 aggregate base w /excavation @ $9.00 /tn 35,100.00 500 SY Sod with 3" topsoil @ $2.25/sy 1,125.00 2,000 SY Wood fiber blanket w /seed @ $3.00 /sy 6.000.00 $1,645,600.00 Total $199,000.00 + 5% Contingency 9.950.00 $208,950.00 +25% Legal, Engrg., Admin., & Bond Int. 52.250.00 Total Storm Sewer Ext. & Drainage Impr. $261,200.00 D. Sanitary Sewer and Wat Main 2 EA Hydrant with connection @ $3,200.00 /ea $ 6,400.00 2 EA Valve replacement @ $1,725.00/ea 3,450.00 400 LF 8" PVC sewer pipe @ $22.50flf 9,000.00 2 EA Sanitary sewer dig ups @ $2,000.00 /ea 4.000.00 Total $22,850.00 + 5% Contingency 1.150.00 $24,000.00 + 25% Legal, Engrg., Admin., & Bond Int. 6,000.00 Total Sanitary Sewer & Water Main $30,000.00 Estimated Project Totals A. Street $894,600.00 B. Concrete Curb /Gutter 459,800.00 C. Storm Sewer and Drainage 261,200.00 D. Sanitary Sewer & Water Main 30,000.00 Total $1,645,600.00 Oak Park Heights - 1994 Street Resurfacing Program C -2 SAMPLE ASSESSMENT CALCULATIONS The assessment rates for this report are based on the estimated costs contained herein. The final rates will be determined based on actual final costs. The calculations below can be followed when determining the final costs. I. Front Foot Rates for Commercial Property The front foot rates are determined by dividing the total project costs by the assessable front footage. Street: $894,600 - 24,870 feet = $35.97/ft (Total) Assessment Rate is 50% of total: 0.50 * $35.97 = $17.99/ft. Concrete Curb:. $459,800 _ 24,870 feet = $18.49 /ft (Total) Assessment Rate is 75% of total: 0.75 * $18.49 = $13.87/ft. There are a total of 1,630.41 assessable feet of commercial property. The total proposed assessments from commercial property (including the City Hall site) is: Street: 1,630.41 * $17.99 = Curb: 1,630.41 * $13.87 = $29,331.07 $22,613.79 Oak Park Heights - 1994 Street Resurfacing Program D -1 H. Per Unit Rates for Residential Property The per unit assessment rates are determined by dividing the total project costs, less the portion attributed to commercial property, by the total number of net residential units. The estimated net total project costs are: Street: $894,600 - 58,646 (commercial amount) _ $835,954 Curb: $459,800 - 33,146 (commercial amount) _ $426,654 There are a total of 279 net assessable units in the project. Therefore, the proposed unit rates are: Street: $835,954 - 279 units = $2,996.25 (Total) Assessment Rate is 50% of total: 0.50 * $2,996.25 = $1,498.13 per unit Curb: $420,654 - 279 units = $1,52923 (Total) Assessment rate is 75% of total: 0.75 * $1,529.23 = $1,146.92 per unit Oak Park Heights - 1994 Street Resurfacing Program D -2 _ u m ` m 11YLY m¢aa 1. Remove existing bituminous surface. — and curb on all streets 2. Construct Concrete Curb do Gutter on all streets. 3. Replace Aggregate Base in specific 'm areas as designated by Engineer. 1 °N N �O n n ° z z Omaha kwnW N. .R a R - � gS ° n UV 58th ° 3d' 6 R aA J U.oa z Uj a - 4 f n O O Ui PROPOSED - ®,g z RETAINING WALL / _ — o x ¢ C� O_ o p o�eN.a O in a- o h O O x rn Ix n f rt NEW CONCRETE CURB & GUTTER CL Variable Variable Remove Existing Bituminous Curb 0.02' /ft. 0.02' /ft. 1 1/2" Type 41 Bituminous Wear Course 1 1/2" Type 31 Bituminous Bose Course 8" Existing Aggregate Base REMOVE OR MILL Ex. BITUMINOUS SURFACE, CONSTRUCT NEW BITUMINOUS SURFACE OVER EXISTING GRAVEL BASE TYPIC STREET SECTIONS OAK PARK HEIGHTS, MINNESOTA FIGURE 3 1994 STREET PROGRAM K: \55 \55113 \55113FO5 January 1994 COMM. 55113 Bonestroo Rosene Anderlik 6 Associates CL NEW CONCRETE Variable Variable CURB & GUTTER Remove Existing Bituminous Curb 0.02' /ft. 0.02'/f t. s: 1 1/2" Type 41 Bituminous Wear Course 1 1/2" Type 31 Bituminous Base Course 8" Aggregate Base Course REMOVE EXIST. BIT. AND GRAVEL SURFACE CONSTRUCT NEW BIT. AND GRAVEL SURFACE TYPIC STREET SECTIONS OAK PARK HEIGHTS, MINNESOTA FIGURE 3 1994 STREET PROGRAM K: \55 \55113 \55113FO5 January 1994 COMM. 55113 Bonestroo Rosene Anderlik 6 Associates . ---5 w a z w w O �.i 36" STORM Ex.13A" STORM I ! I .._..__._ ► I 30' z z bL c o O 0 Scale '.n eet STORM SEWER EXTENSIONS A" Rone ® osene A OAK PARK HEIGHTS, MINNESOTA FIGURE 4 s As at es 1994 STREET PROGRAM L: \55 \55113 \55113FO6 JANUARY 1994 COMM. 55113 61 St i 1st .� ST. N i ST. CT. _ 1 60th L S T. N STATE T.H. 36 z ( �` 0 i,J 0 w Z 0 � o O PROPOSED 56th 57th S N. STORM SEWER z °- a Z 141'b 1 w 56th ST. N. 0 57th ST. N. �Ex. 36" STORM S FQ 1 a Ex[ 33" STORM SEWE 56th ST. N. 0a 4 'ROPOSED a 55th ST. _N. ORM SEWER I 0PPeY PROPOSED JJJ������ z STORM SEWER 0 w z -.0 w z w m 56th ST. N. OLDFIELD .^1 COURT Ex.13A" STORM I ! I .._..__._ ► I 30' z z bL c o O 0 Scale '.n eet STORM SEWER EXTENSIONS A" Rone ® osene A OAK PARK HEIGHTS, MINNESOTA FIGURE 4 s As at es 1994 STREET PROGRAM L: \55 \55113 \55113FO6 JANUARY 1994 COMM. 55113 61 St i 1st .� ST. N i ST. CT. _ 1 60th L S T. N STATE T.H. 36 z ( �` 0 i,J 0 w Z 0 � o O PROPOSED 56th 57th S N. STORM SEWER z °- a Z 141'b 1 w 56th ST. N. 0 57th ST. N. �Ex. 36" STORM S FQ 1 a Ex[ 33" STORM SEWE 56th ST. N. 0a 4 'ROPOSED a 55th ST. _N. ORM SEWER I 0PPeY -JL w M H Q N .� s 0 co 3 U0 0 � ' AA � " OSGOOD AV N-- r - ,._.....`".' - AVE � ORE Z ; e LO OMAR AVE. N g PCI P AVEMENT CONDITION INDEX Rcl) OAK PARK HEIGHTS, MINNESOTA FIGURE 5 1994 STREET PROGRAM Rd. 67 Bonestroo Mom Rosene " Anderlik 6 Associates K: \55 \55113 \55113FO4 JANUARY 1994 comm. 55113 6 OMAHA AVE. H 64 Z OLENE AVE. N 6 N 4 4 6 LO A INDA AVE. Fop Z �1 UZ ~ L OLDFIELD ~ AVE. OLDFIELD AVE. N w( u') �N i / N O'BRIEN AVE. N 0 250 ii� Y.0 Scar. �n be! g PCI P AVEMENT CONDITION INDEX Rcl) OAK PARK HEIGHTS, MINNESOTA FIGURE 5 1994 STREET PROGRAM Rd. 67 Bonestroo Mom Rosene " Anderlik 6 Associates K: \55 \55113 \55113FO4 JANUARY 1994 comm. 55113 A C U Y cmvm 0 o c u m¢aa Z -- in W I N r N � p Z W W X m� O li H 1�r U W m O F W Q a c V O f2 i Z Z } O Y (J a G W i W W F � Y y N � Q � O � r.� 60004 -3950 W Q. -14 CD CL D 4: m C fD /! Street N State Hwy. 36 14303 #14375 #14399 #14447 - OAK PARK NAPA ROUSTON PLAZA GMC 80004 eoao4 Tract A 60004 -3600 -4000 -3700 I go O N M — $103 60004 -7650 120' 100' 50004 5925 -3850 60004 60004 -3600 -7750 v2 -4200 7 #5898 n �F 14385 5896 ! AREA TO BE ; 61343 86004 - 1 -2650 I -]400 -]550 G Duplex Duplex N R� ASSESSED 4 -Plex #5887 #5886 1 N �o�N #5886 5889 1 #5888 F, 8 GF S� o, i �L 19 9 04 ai Y) 10 I INORTHII =RN I STATES POW9R COMPANY TRANSMISSION® SEMENI M 60004 -3750 — Property Identification Number If 56 #5896 - - - -- Street Address 5� - - - - -- Assessable Footage for Commercial Property 300' ASSESSMENTS in Bone stroo Rosene ne Anderlik d OAK PARK HEIGHTS, MINNESOTA FIGURE 7 Associates 1994 STREET PROGRAM L. \55 \55113 \55113FO2 JANUARY 1994 COMM. 55113 1339 -2 �{ 4 5871 05872 61343 61343 81313 -200] Q -2400 ' -2600 I857 K #5862 a 61343 61343 O #585 8 -2100 -2450 61343 -2700 5836 < H lU #5835 L 61343 0 Bt3U '2266 C 5834 (D -2 C 61343 #5810 Z #5817 -25w 61343 61343 61343 -22550 -2550 -2755 4 -Plex 8 -Plex D J M 5800 #14386 58th Street N. S� o, i �L 19 9 04 ai Y) 10 I INORTHII =RN I STATES POW9R COMPANY TRANSMISSION® SEMENI M 60004 -3750 — Property Identification Number If 56 #5896 - - - -- Street Address 5� - - - - -- Assessable Footage for Commercial Property 300' ASSESSMENTS in Bone stroo Rosene ne Anderlik d OAK PARK HEIGHTS, MINNESOTA FIGURE 7 Associates 1994 STREET PROGRAM L. \55 \55113 \55113FO2 JANUARY 1994 COMM. 55113