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Home My WebLink About6.e. Receive Feasibility Report / Set Public Hearing, Valley Oaks Phase III ImprovementsDATE: FEBRUARY 9, 1988 TO: MAYOR & COUNCILMEMBERS C/O ADMINISTRATOR JILK FROM: CITY ENGINEER/PUBLIC WORKS DIRECTOR HEFTI (]�I' RE: ITEMS FOR THE FEBRUARY 16, 1988 COUNCIL MEETING NEW BUSINESS Project 4180, Receive Feasibility Report/Order Public Hearing for Valley Oak Replat, Phase III Improvements January 5, 1988 Council received a petition -from the developer of the Valley Oak Replat Addition to prepare a feasibility report on the installation of public streets and utilities for Phase III of this development. Our Consulting Engineer has completed the feasibility report, a copy of which is attached, and found the project feasible to construct. The next step for Council is to schedule a public hearing at which Council will listen to concerns and input from the public that this project affects. Staff would recommend setting this date and time at 8:00 p.m., Tuesday, March 15, 1988. This will allow Staff time to met all legal deadlines for Published and Mail Notice of this project. Therefore, Staff would recommend that Council accept the feasibility report for Project 4180, Valley Oak Replat-Phase III Public Improvements -and order a Public Hearing to be held on March 15, 1988 at 8:00 p.m. 0 0 CITY OF ROSEMOUNT RESOLUTION 1988 - A RESOLUTION CALLING FOR PUBLIC HEARING TO CONSIDER CITY PROJECT #180, VALLEY OAK ADDITION REPLAT-PHASE III STREET AND UTILITY IMPROVEMENTS WHEREAS, the City Council deemed it necessary and expedient that the City of Rosemount, Minnesota, construct certain improvements, to -wit: City Project #180, Valley Oak Addition Replat-Phase III Street and Utility Improvements, in the City as described in and in accordance with the feasibility report prepared by Short - Elliott -Hendrickson, Inc., Consulting Engineers; and WHEREAS, the City Council has been advised by the Consulting Engineers that said installation of street and utilities., City Project #180, is feasible, and should best be made as proposed, and the Consulting Engineers' report to this effect has heretofore been received by Council, and filed with the Administrator/Clerk on February 16, 1988; and WHEREAS, the statute provided that no such improvements shall be made until the Council has held a public hearing on such improvements following mailed notice and two publications thereof in the official newspaper stating time and place of the hearing, the general nature of the improvement, the estimated costs thereof, and the area proposed to be assessed, in accordance with the law. NOW THEREFORE BE IT RESOLVED, by the City Council of the City of Rosemount that a public hearing be scheduled to consider City Project #180, Valley Oak Addition Replat-Phase III Street and Utility Improvements to be held on Tuesday, March 15, 1988 at 8:00 o'clock p.m. in the Council Chambers of City Halla ADOPTED this 16th day of February, 1988. Rollan Hoke, Mayor ATTEST: Stephan Jilk, Administrator/Clerk FEASIBILITY REPORT FOR STREETS AND UTILITIES IN PHASE III VALLEY OAK ADDITION ROSEMOUNT, MINNESOTA CITY PROJECT NO. 180 SEH FILE NO: 88131 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. DATE: Z� II / P18 REG. NO. 12691 REVIEWED BY: DATE: ENGINEERS ■ ARCHITECTS ■PLANNERS February 9, 1988 222 EAST LITTLE CANADA ROAD, ST PAUL, MINNESOTA SS117 612 484-0272 RE: ROSEMOUNT, MINNESOTA VALLEY OAK ADDN. - PHASE III STREETS AND UTILITIES SEH FILE NO: 88131 City of Rosemount 2875 145th Street West Rosemount, MN 55068 Attn: Rich Hefti, Director of Public Works Gentlemen: In accordance with your authorization we have prepared the attached feasibility report for utility and street construction in Phase III of Valley Oak Addition. This report discusses sanitary sewer, watermain, drainage, streets, and street lighting improvements, and provides cost estimates for each. We would be pleased to review this report with you in detail. Sincerely, SHORT-ELLIOTT-HENDRICKSON, INC. Steve Campbell SDC/cih Enclosure SHORT ELLIOTT ST. PAUL, CHIPPEWA FALLS, HENDRICKSON INC. MINNESOTA WISCONSIN PART 1 INTRODUCTION 1.1 AUTHORIZATION On January 5, 1988, the Rosemount City Council upon petition by the owner, authorized the preparation of an Engineering Feasibility Report for utility and street construction in Phase III of Valley Oak Addition. This project has been designated as City Project No. 180. 1.2 SCOPE The purpose of this report is to study, make recommendations and provide cost estimates for the construction of sanitary sewer, watermain, storm sewer, street and street lighting facilities in Phase III of Valley Oak Addition. 1.3 DATA AVAILABLE The information and materials used in the preparation of this report include: 1. Final plat of Valley Oak Addition. 2. Grading plan of Valley Oak Addition (August 17, 1979). 3. City of Rosemount construction record drawings. 1.4 GENERAL BACKGROUND The project district is located in the north half of the southeast quarter of Section 31 in the previously platted Valley Oak Addition. The project area includes 27 single family residential lots located along 156th Street and Columbary Court as shown on Drawing No. 1. Trunk utilities have been installed in the project district on previous projects. For the purpose of this report it is assumed that all street and site grading will be completed by the owner. 1 - 1 PART 2 PROPOSED IMPROVEMENTS 2.1 SANITARY SEWER Proposed sanitary sewer facilities are shown on Drawing No. 2. These facilities include the westerly extension of an 8" PVC service main from the existing 12" RCP located in 156th Street and the construction of 8" PVC stub sewers for future extension at Columbia Court and Crestone Path. The existing trunk 12" RCP will provide service to Columbary Court and the easterly portion of 156th Street. The proposed facilities also include the extension of 4" PVC services to each lot from the proposed service and existing trunk mains. Where frontage is provided by the trunk mains, the services will be connected to inplace risers. 2.2 WATERMAIN Proposed watermain facilities are shown on Drawing No. 3. These facilities include the construction of 6" DIP stubs for future extension at Columbia Court and Crestone Path. 156th Street and Columbia Court will be served by existing 16" trunk and 6" service mains respectively. The proposed facilities will also include the extension of 1" copper services to each lot from the existing mains. 2.3 DRAINPGE Proposed storm sewer facilities are shown on Drawing No. 4. These facilities include the westerly extension of 30" RCP from the existing manhole on 156th Street to Columbia Court, the westerly extension of a 12" RCP from Columbia Court to Crestone Path and the northerly extension of a 27" stub from 156th Street. The 27 stub will ultimately be extended -along Columbia Court and connected to and transmit flows from the existing 27" discharge from Shannon Parkway. 2 - 1 PART 3 COST ESTIMATES Detailed cost estimates for all improvements proposed herein are included in the Appendix of this report. These estimates are based on projected, 1988 unit costs and include allowances for contingencies and anticipated overhead costs. These estimates do not include any costs for street or site grading. A summary of these costs is as follows: Sanitary Sewer $ 30,000 Watermain 20,000 Storm Sewer 40,000 Street Construction 75,000 Street Lighting 12,000 Total $177,000 In addition to the above costs, Phase III shall also be responsible for the cost of lateral benefits from the core facilities installed under City Project 154, Contract 1985-3 that were not assessed to the 22 lots included with the Phase II development. These costs amount to $56,958. 3 - 1 PART 4 PROJECT DISTRICT The following parcels of land are included in the project district: Valley Oak Addition Replat Block 2, Lots 5-14 and Lots 30-35 Block 3, Lot 1 Block 4, Lots 12-21 4 1 PART 5 FEASIBILITY We find that the improvements described herein are feasible and recommend that they be constructed in general compliance with the provisions of this report. 5 - 1 ESTIMATE OF COST SANITARY SEWER CITY PROJECT NO. 180 ROSEMOUNT, MINNESOTA T ITEM UNIT NO. DESCRIPTION UNIT QUANTITY PRICE AMOUNT 0256.408 8" PVC, 12'-14' DEEP L.F. 600 $15.00 $ 9,000 0256.408 8" PVC, 14'-16' DEEP L.F. 150 17.00 2,550 0256.701 STANDARD MANHOLE, 8' DEEP EACH 4 1,000.00 4,000 0256.702 EXCESS DEPTH STANDARD MANHOLE L.F. 15 75.00 1,125 0256.801 8" BY 4" PVC WYE 40.00 EACH 15 600 0256.803 4" PVC SERVICE L.F. 1,100 5.00 5,500 0256.900 CONNECT TO EXISTING SEWER EACH 1 300.00 300 SUBTOTAL $23,075 +10$ CONTINGENCIES 1,925 ESTIMATED CONSTRUCTION COST $25,000 +20$ OVERHEAD & ENGINEERING 5,000 TOTAL ESTIMATED COST $30,000 i ESTIMATE OF COST WATERMAIN CITY PROJECT NO. 180 ROSEMOUNT, MINNESOTA ITEM UNIT NO. DESCRIPTION UNIT QUANTITY PRICE AMOUNT 0257.406 6" DIP WATERMAIN, CL. 52 L.F. 150 $13.00 $ 1,950 0257.606 6" R.S. GATE VALVE AND BOX EACH 2 400.00 800 0257.630 FITTINGS LESS THAN 12" LB. 200 1.25 250 0257.640 FIRE HYDRANT EACH 1 900.00 900 0257.710 1" COPPER SERVICE L.F. 1,200 6.00 7,200 0257.730 1" CORPORATION EACH 27 30.00 810 0257.740 1" CURB STOP EACH 27 70.00 1,890 0257.806 INSULATION BD. FT. 150 1.00 150 0257.903 CONNECT TO EXISTING WATERMAIN EACH 2 200.00 400 SUBTOTAL +10$ CONTINGENCIES ESTIMATED CONSTRUCTION COST +20$ OVERHEAD & ENGINEERING TOTAL ESTIMATED COST $14,350 650 516,000 4,000 $20,000 ESTIMATE OF COST STORM SEWER CITY PROJECT NO. 180 ROSEMOUNT, MINNESOTA ITEM UNIT NO. DESCRIPTION UNIT QUANTITY PRICE AMOUNT 0258.401 12" RCP CATCH BASIN LEADS, CL. IV L.F. 200 $23.00 $ 4,600 0258.412 12" RCP STORM SEWER, SUBTOTAL +10$ CONTINGENCIES ESTIMATED CONSTRUCTION COST +20$ OVERHEAD & ENGINEERING TOTAL ESTIMATED COST $29,700 3,300 $33,000 7.000 $40,000 CL. IV L.F. 400 20.00 8,000 0258.427 27" RCP STORM SEWER, CL. III L.F. 50 31..00 1,550 0258.430 30" RCP STORM SEWER, CL. III L.F. 200 34.00 6,800 0258.603 MANHOLE, TYPE B L.F. 6 125.00 750 0258.604 MANHOLE, TYPE C L.F. 6 200.00 1,200 0258.704 CATCH BASIN, TYPE X L.F. 20 110.00 2,200 0258.705 CATCH BASIN, TYPE Y L.F. 20 130.00 2,600 0258.801 R 1733 MH CASTING EACH 2 150.00 300 0258.808 R 3067 CB CASTING EACH 7 200.00 1,400 0258.930 CONNECT TO EXISTING STORM SEWER EACH 1 300.00 300 SUBTOTAL +10$ CONTINGENCIES ESTIMATED CONSTRUCTION COST +20$ OVERHEAD & ENGINEERING TOTAL ESTIMATED COST $29,700 3,300 $33,000 7.000 $40,000 ESTIMATE OF COST STREET CONSTRUCTION CITY PROJECT NO. 180 ROSEMOUNT, MINNESOTA ITEM UNIT . NO. DESCRIPTION UNIT QUANTITY PRICE AMOUNT 2105.501 COMMON EXCAVATION C.Y. 500 $1.00 $ 500 2105.521 GRANULAR BORROW (LV) C.Y. 500 3.00 1,500 2111.501 TEST ROLLING RD. STA. 13 40.00 520 2112.501 SUBGRADE PREPARATION R.S. 13 80.00 1,040 2211.503 AGG. BASE PLACED CLASS 5 C.Y. 850 10.00 8,500 2341.504 BIT. MAT. FOR MIX. TON 60 175.00 10,500 2341.508 WEARING COURSE MIX. TON 530 14.00 7,420 2341.510 BINDER COURSE MIX. TON 530 13.00 6,890 2357.502 BIT. MATERIAL FOR TACK COAT GAL. 250 1.50 375 2504.602 ADJUST GATE VALVE BOX EACH 4 100.00 400 2506.511 RECONSTRUCT MANHOLE L.F. 5 200.00 1,000 2506.522 ADJUST FRAME AND RING CASTING EACH 12 130.00 1,560 2531.501 CONCRETE CURB & GUTTER, DESIGN D418 L.F. 2,700 5.00 131500 2554.501 PERMANENT BARRICADES L.F. 32 40.00 1,280 SUBTOTAL $54,985 +10% CONTINGENCIES 5,015 ESTIMATED CONSTRUCTION COST $60,000 +20$ OVERHEAD & ENGINEERING 15,000 TOTAL ESTIMATED COST $75,000 ESTIMATE OF COST STREET LIGHTING CITY PROJECT NO. 180 ROSEMOUNT, MINNESOTA ITEM UNIT INO. DESCRIPTION UNIT QUANTITY PRICE AMOUNT 2545.511 LIGHTING UNIT, TYPE A EACH 1 $900.00 $ 900 2545.511 LIGHTING UNIT, TYPE B EACH 3 1,200.00 3,600 2545.532 UNDERGROUND CONDUCTOR L.F. 900 2.50 2,250 2545.552 FEED POINT EACH 2 1,000.00 2,000 SUBTOTAL $ 8,750 +10$ CONTINGENCIES 1,250 ESTIMATED CONSTRUCTION COST $10,000 +20% OVERHEAD & ENGINEERING 2,000 TOTAL ESTIMATED COST $12,000 i 1 013-37 ^ i b O O O 0 0,, 145 TH STREET R W J J Q �I 011-25 W CL II NORTHERN NATURAL GAS 00 1 w Z 010-50 s Y Iw ° P ° SIRE °Q UPPER a 143 RD z • s - a / -�W O � .zo i 144T ST EE'T — j s O 4 = u zo z. oH -��__ 010- ea 91 PO @°'a 2 a 2 1µLLS. / ' s••�s"; �s46 TH gr ° I 34 6146TH ST Lzi wn- s / zL0 E W7 H (T' W f LLI a 147 tH n ST. W'j s 1a47 TH -STREET W.- aI 1-1 1g z UPPERS 147TH GAS CO. 28 159 TH COURT21 W 19 6 u OIO-T3 DAKOTA DRIVE 30 11<1 160 TH STREET W. o EMPIRE FILE N0. 88131 PROJECT LOCATION DRG. N0. i ENGINEERS 8 ARCHITECTS 0 PLANNERS