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B. 2011 Street Improvement Project Update 101 ."-B CITY OF MEMORANDUM CHANHASSEN • TO: Paul Oehme, Public Works Director /City Engineer 7700 Market Boulevard FROM: Alyson Fauske, Assistant City Engineer PO Box 147 W . Chanhassen, MN 55317 DATE: September 27, 2010 Administration SUBJECT: 2011 Street Improvement Project City Project 11 -01: Update Phone: 952.227.1100 Fax: 952.227.1110 Building Inspections DISCUSSION Phone: 952.227.1180 Every year the City considers streets that are in poor condition to be rehabilitated Fax: 952.227.1190 or reconstructed. For the 2011 Street Improvement Project, staff is proposing to Engineering rehabilitate approximately 2.6 miles of streets. The street segments within the Phone: 952,227.1160 proposed project were identified by the City's Pavement Management software in Fax: 952.227.1170 conjunction with site investigations. Finance The proposed / ` ., r. Phone: 952.227.1140 /' W ^ �� , , improvements Fax: 952.227.1110 generally consist of m milling and `1 J Park & Recreation r $ � - "` Phone: 952.227.1120 overlaying the e `_) • 7-- - -- -- .— S_ I HIGHWAY = v Fax: 952.227.1110 pavement surface. ± � ,. Coulter Blvd I m Recreation Center Severe pavement 2310 Coulter Boulevard distresses will be 1 Phone: 952227.1400 removed and , Fax: 952.227.1404 replaced. Minor = �j Planning & drainage Project Area #1: Commercial Natural Resources improvements are , Project Area #2: Urban Residential Phone: 952.227.1130 also included within • Project Area #3: Rural Residential Fax: 952.227.1110 the project areas. MI Project Area #4: Trail • Project Area #5: Parking Lot Improvements Public Works 1591 Park Road Phone: 952.227.1300 The project also includes miscellaneous sidewalk and concrete curb and gutter - Fax 952127.1310 replacement at various locations throughout the City. Approximately 2,000 feet of trails is proposed to be resurfaced along the Highway 5 corridor and in the Senior Center Stone Creek neighborhood. Phone: 952.227.1125 Fax: 952.227.1110 Also included in this year's project is expansion of parking in the southeast City Web Site hall parking lot. www.ci.chanhassen.mn,us g: \eng \public \ projects \11-01 2011 street project \09 -27 -10 cc work session.doc Chanhassen is a Community for Life - Providing for Today and Planning for Tomorrow 2011 Street Improvement Project 11 -01: Update September 27, 2010 Page 2 of 5 Project Area #1: Urban Commercial This project area consists of 0.71 miles of streets within the western portion of the downtown core: • West 78 Street between Powers Boulevard and Market Boulevard ranges between 60 and 90 feet wide, with medians. These sections were built in the early 1990's and were sealcoated in 1995. • Kerber Boulevard south of West 78 Street was constructed in 1972, overlaid in 1996 and sealcoated in 1997. • Picha Drive was constructed in 1972 and sealcoated in 1997. • Target Lane was constructed in 1993. The Pavement Condition Indices are shown on the map below; a score of 100 represents a new street. The PCIs range from 19 to 72 within this project area, however staff recommends a mill and overlay is warranted on the roads with higher PCI's since these segments are collector roads. The streets segments with the lower PCI's are not collector roads and would benefit from a mill and overlay. The average PCI for the area is 46 which is within the general guidelines for overlays. Pavements between 45 and 65 are generally considered needing an overlay. A 3" mill and overlay is anticipated on W. 78 Street and 2" overlay on the side streets. Included in the project would be new loop detectors at all the signalized intersections. ,Ira r- , r _, .. I4 !. _, ,-- 1 , . I City a I .*° , .5 _ 7.- iikt ., ., r� J., ° a _ �� tfr . /,, to - .7: -- ; " . '_:::: I - 4ir ...I '‘' L o :_� -..-.c.......-7------,-- . VV es ' t�78 t h, St $7.4, _ ev l y .�. 5 �."G" Ha: Z 1 pia. i ,, f / ..' ni f 7 -71-14 r ; °. .: , • � Prichi°r L ...., ..... ,,,...::,,,_ ,,,..,f...- : ,.., 4 k /i -: � , • f "'s'a q .. •1:. k° .r..s.rm „xq` ,�, \ • g: \eng \public \_2011 projects \11 -01 2011 street project \09 -27 -10 cc work session.doc 2011 Street Improvement Project 11 -01: Update September 27, 2010 Page 3 of 5 Project Area #2: Urban Residential There are approximately 0.75 miles of streets within this project area. The street widths range from 23 to 30 feet wide. Santa Vera Drive, Chippewa Trail and Chippewa Circle were constructed in 1987 and sealcoated in 1990 and 1997. Saratoga Drive and Circle were constructed in 1978 and sealcoated in 1992 and 1997. The project generally consists of replacing damaged and settled curb, repairing severely distressed pavement areas, edge milling the streets and placing a paving a 2" overlay. 39 at e 38 " g i ' -114 `" , ;�.,.: Chipppewa • ' e-, !t3 40 I'd > .(( K 31 r itbga C 28 27 i2 to I D ' '�' � - � / ego., 42 *. xi. '! r Mme! . \ � " " ; O ,'^- ^© � I� r , _ 1.L : � P I °‘ ` / ' , "a ll f , I 7 *.' y 4.0- - r rJ 5 Bin CI it a; �, Project Area #3: Rural Residential Hight' 5 -_ The streets within this project area were constructed in `` 1990 in conjunction with the Timberwood Estates e development. The streets were sealcoated in 1992. .. f -, i The streets in this area are 25 feet wide without curb and gutter. .Timberwood 1 Staff proposes that a full depth mill and overlay be ' .„,, performed due to the condition of the streets. The `` o millings of the streets would be used as aggregate base. 3 ' • 4iw A 3" of pavement section would be placed. No curb m . \ -1� and gutter is proposed in the project area since the 39 21 sancec a t � h p P J • e na� � , s development is not serviced by City sewer and water t.. - . ,: and there are no plans to extend these services to the 20 ° 39 ;�"� area. g: \eng \public \ projects \11 -01 2011 street project \09 -27 -10 cc work session.doc 2011 Street Improvement Project 11 -01: Update September 27, 2010 Page 4 of 5 Project Area #4: Trail Improvements Along with overlay projects, the City has included trail segments that are in need of repair or replacement. The Parks Maintenance Department used updated trail pavement condition data and site investigation to determine the proposed trail segments in the 2011 resurfacing project. Below are areas that trails are proposed to be replaced. These trail segments show signs of significant deterioration and should be replaced. The estimate for this work is $75,000. 1 z , i t� l fL` > i * • ; i i. .' a ` � ya s * 4< .+ m V ; ` "*44 4 a 73 co 4 t 4 it MI:* *,^Z r 4 ;p O ! � is. 64w.,Er . 0 (0 $ 1 ir Iliigu ►ter HIghway S = - , 0 , t 4 aa I cri „ ��� �, " �� ». ' _ , � �._ � � 7,- � �[ � — 69 1 3 ➢t* , i11+ / srou Bl ''' ,,,,, . , -1- ':1 4 _ 17.r „1,1 (-.?:, '''''-', . Hig 5 {. i4 CC ? r R 4 K ®: (I + j v [o L ^3 / . i '{ C J 4` ,s„ x' a t T O' IR1x" t 4 . " :c< R id l CJ '� ' � ' ' � � 6 / 1T' 13-`" -r. 4 ,::10 ' 4 '1'' ," � ; > r # f s .. 's :, ' ; 'I' 11'.,A n q " � .. � ,x A , i t .tr". 1 ,7 ' ! '''V'''..,„...,"1,4, '.. •3 1 '4 b h p'. Project Area #5 South East City Hall Parking Lot Expansion This project is proposed to maximize the existing - parking lots at City Hall. Currently the parking lots at - City Hall are full when seniors, the library and the ` ' City have events planned during the day. City staff has tried to schedule events so parking demand is 1 . r m spread out during the day; however these initiatives 1 �' 0 F have only been somewhat successful. The proposed r '. 40- '� ' , - uf it terr parking lot expansion would remove most of the . r- ' Inter median from the parking lot, move the north curb line 3' to the north and reconstruct the parking lot entrances. The work would allow for 11 additional ' '' parking stalls. The cost for the project is estimated at f tTt� T E $70,000 and funded by the Capital Replacement Fund. - g: \eng \public \_2011 projects \11 -01 2011 street project \09 -27 -10 cc work session.doc 2011 Street Improvement Project 11 -01: Update September 27, 2010 Page 5 of 5 ASSESSMENTS Resurfacing of West 78 Street within Project Area #1 is proposed to be financed from the Pavement Management Fund/MSA. The remaining streets within Project Area #1 and all streets within Project Areas #2 and #3 are proposed to be financed through the Revolving Assessment Fund. All streets improvements are proposed to be assessments (forty percent (40 %) of the street improvement costs) back to the benefiting property owners. Trail improvements are not proposed to be assessed but paid for through the revolving assessment fund. Due to the variable nature of the project areas, staff anticipates three assessment rolls would be prepared for this project. Staff anticipates that the "unit assessment" methodology would be utilized for the residential project areas, meaning all units within the assessment area pay the same amount. The "benefitting area" methodology is anticipated for the commercial assessment area, meaning larger parcels would pay higher assessments. Detailed assessment methodology will be provided in the feasibility report should Council authorize its preparation. PROJECT FUNDING Funding for the project is proposed as follows: Funding Source Amount Budgeted Assessments /Revolving Assessment Fund $1,200,000 MSA Fund $ 300,000 Capital Replacement Fund $70,000 $1,570,000 Staff anticipates completing the feasibility report, design and construction administration of the project in- house. The City intends to charge the project 5% for this service. Some indirect costs are anticipated such as pavement borings and legal costs. SCHEDULE The proposed project schedule is as follows: Order Feasibility Report: October 11, 2010 Neighborhood Meeting: November, 2010 Accept Feasibility Report: December, 2010 Public Hearing /Order Plans & Specifications: January, 2011 Approve Plans & Specifications /Order Ad for Bid: February, 2011 Assessment Hearing: April, 2011 Project Begins: May, 2011 Substantial Completion: August, 2011 Attachment: CIP Page g: \eng \public \_2011 projects \11 -01 2011 street project \09 -27 -10 cc work session.doc Capital Improvement Program City of Chanhassen, MN 2010 thru 2014 Department Street Improvements Contact Paul Oehme Type Improvement Project# ST -012 Useful Life Unassigned Project Name Annual Street Improvement Program Category Streets/Highways Account #1 601 -xxxx -4751 Account #3 Priority n/a Account #2 Account #4 Total Project Cost: $8,300,000 Description Annual project to rehabilitate and reconstruct streets in the City. Current 5 -year plan shows the following neighborhood areas: Residential 2010 - Erie Ave area and Red Cedar Pt (Reconstruction) 2011 - Timberwood, Saratoga, Santa Vera, Chippewa, Picha and Kerber (S of W 78th) 2012 - Greenbriar; Fir Tree, Elm Tree, Dogwood, Shore Drive and Maplewood Circle (Reconstruction) i 2013 - Greenwood Shores 2014 - Dartmouth Drive and Cypress Drive MSA 2011 - West 78th Street (Powers to Market) Justification I The City uses a Pavement Management System to monitor the condition of the City streets. While proper preventative maintenance extends the life of the street and is cost effective, a street will eventually deteriorate to a point that further maintenance is no longer cost effective. 0 Rehabilitation projects extend the life of the street. In cases with utility or poor sub grade needs to be replaced or where streets have deteriorated to a point where rehabilitation will no longer be practical reconstruction of the street is necessary. A feasibility study is written to consider the merits of the project and scope of work. t PI Prior Expenditures 2010 2011 2012 2013 2014 Total f 1,300,000 f Construction 1,900,000 1,500,000 1,700,000 800,000 1,100,000 7,000,000 is Total Total 1,900,000 1,500,000 1,700,000 800,000 1,100,000 7,000,000 Pli 11 Prior Funding Sources 2010 2011 2012 2013 2014 Total I 1,300,000 I Assessment/Revolving Assess 1,900,000 1,200,000 1,700,000 800,000 1,100,000 6,700,000 IIIII Total MSA 300,000 300,000 Total 1,900,000 1,500,000 1,700,000 800,000 1,100,000 7,000,000 II IN Budget Impact/Other I This project may decrease maintenance costs. 1 1 IN II 99