Loading...
HomeMy WebLinkAbout3.2 Summer Road Construction Projects STAFF REPORT CITY CLERK File #820-20 CITY COUNCIL DATE:April 5, 2016 TO: Honorable Mayor and City Councilmembers FROM: Christopher L. Foss, City Manager SUBJECT: Update on Summer Road Construction Projects Prepared by Andrew Russell, Assistant Public Works Director/City Engineer EXECUTIVE SUMMARY: The City Council will receive a status update of upcoming summer road construction projects. FINANCIAL IMPACT: None. RECOMMENDATION: Staff recommends that the City Council receive the report. Submitted By Reviewed By Public Works Director Administrative Services Director DESCRIPTION: Roadway construction is typically planned to occur during summer months in order to take advantage of warmer and drier weather. This is particularly important for projects which include asphalt paving, asphalt maintenance, and for construction activities near storm drain channels and natural drainage swales. Several City construction projects are planned to begin during the summer of 2016, a few of which are significant in size and will be visible to the community. The three largest, and most important, road construction projects that will begin this summer are:  Moller Creek Culvert Replacement  Tassajara Road Overlay  Dougherty Road Improvements Moller Creek Culvert Replacement (Moller Ranch Subdivision) On Monday, May 2, 2016, Tassajara Road will be closed to all traffic north of Fallon Road. Camino Tassajara will be closed, except for local access, at Windemere Parkway in Contra ITEM NO. 3.2 Page 1 of 4 Costa County. The road closure is necessary in order to replace an existing nine-foot (9’) diameter corrugated metal pipe culvert with a new eighteen-foot (18’) diameter steel pipe culvert. The construction schedule anticipates the road closure lasting to December 1, 2016, or closure duration of seven months. Signs advising the public of the pending construction will be placed in advance of the closure. Also project newsletters, email, and the City website will be used to provide information to nearby property owners, interested parties, and the general public. The culvert project is part of the Moller Ranch/Moller Creek Culvert Replacement Project. The City Council approved the Moller Ranch subdivision in late 2012. The subdivision includes the development of up to 382 single-family detached units on approximately 80 acres of the 226- acre Moller Ranch property. The culvert replacement was included as a required subdivision frontage improvement. Toll Brothers is the subdivision developer and their contractor will be constructing the culvert replacement. In general, construction activity will include:  Construction signs (in advance of the May 2 closure date)  Concrete barriers (K-rail), barricades, and fencing to secure work area  DSRSD temporary water line installation & relocation of existing line  Roadway excavation and existing culvert removal  New culvert installation and trench backfill  Concrete head wall construction  Utility installation (water, recycled water, sewer, storm drain, and joint trench)  Curb, gutter, asphalt paving, and striping Construction activity will occur Monday through Saturday and will include extended work hours (10 hours/day) to help the project stay on schedule. The schedule includes approximately two weeks of contingency time, in the event that there are any weather delays. Public Works Staff will work with the developer and contractor to ensure that the project stays on schedule. Outreach Efforts The construction and associated road closure, has included and will continue to include significant outreach and coordination effort with neighboring agencies. Contra Costa County, San Ramon, and Danville have been consulted regarding the closure and have issued permits for the placement of construction advisory signs and closure of the roadway. Alameda County Fire Department and the San Ramon Valley Fire Protection District have coordinated mutual assistance efforts regarding emergency response once the road is closed. Staff has also compiled a list of affected parties and interested parties, who will receive email and other notifications about the project. The project will include the installation of electronic messaging signs in advance of the road closure. The signs will inform the traveling public of the upcoming closure date. The City has also setup a webpage for the project, which is accessible at www.dublin.ca.gov/1807/Tassajara-Road or through the City of Dublin Roadwork webpage at www.dublin.ca.gov/Roadwork . Page 2 of 4 Tassajara Road Overlay (City CIP No. ST5016) The City Council has regularly approved annual pavement maintenance projects as part of the City’s Capital Improvement Program. The projects traditionally have included one annual slurry seal project and one annual pavement overlay project, with funding provided by State Gas Tax and Measure B Sales Tax. The projects help protect the substantial public investment roadway assets. In the summer of 2016, Public Works Staff is preparing a single overlay project for Tassajara Road between I-580 and North Dublin Ranch Road, which is a distance of approximately 1.2 miles. The project will construct a 2-inch thick rubberized asphalt overlay of the predominantly six-lane street. In addition to the overlay to restore the aged pavement surface, Public Works Staff is proposing this overlay take advantage of the traffic reduction due to the road closure associated with the Moller Creek Culvert project. Bids for the project are planned to be received in May with construction starting sometime in July. The pavement area of the project is such that the estimated construction cost is $2.2M, which exceeds the combined construction budget of both the annual overlay and annual slurry projects. Staff will propose a budget change to bring additional funding from Measure B or Gas Tax into the project budget in order for the project to be awarded and for construction to be completed. In addition to the overlay, the project will include “dig-outs” of failed asphalt and construction of road base repairs to ensure the overlay is being placed on a competent surface. Construction includes installation of new pavement striping, which is removed before the asphalt overlay is placed, and installation of new traffic signal detectors. Finally, the project will include accessibility upgrades and new handicap curb ramps at almost all intersections. Outreach Efforts The project will include the installation of electronic messaging signs in advance of the start of work. The signs will inform the public of the upcoming work and that the construction may result in some travel delays. At times, intersecting streets and driveways will be temporarily closed to allow for construction at those specific locations. At those times, notices and signs will be placed to inform residents, customers, and visitors of alternative routes. Finally, as construction approaches, the City website will be updated to include project information and contact information should the public have questions Dougherty Road Improvements (City CIP No. ST0911) The Dougherty Road Improvements project will complete the construction of Dougherty Road from Sierra Lane to the north City limit. The project will implement the City of Dublin Complete Streets Policy by providing for safe and convenient travel for all users, including pedestrians, bicyclists, buses, and motorists. The project will widen Dougherty Road to six lanes, with on- street bike lanes, raised landscaped medians, bioretention planters, and bus stops. The project will also overlay the existing pavement, install new pavement markings, upgrade traffic signals, and replace existing curb ramps to comply with current Americans with Disabilities Act (ADA) standards. On February 16, 2016, City Council approved the plans and specifications and authorized the project for bidding. Bids are scheduled to be opened on April 26, which will be followed by consideration of award of bid in May, and if awarded, project construction would start in the June/July timeframe. Construction duration is planned for 16 months. Page 3 of 4 The engineer’s estimate for construction is approximately $14.6 million, and the overall project budget is $23 million, which included right-of-way acquisition, purchase of mitigation land, regulatory permits, design, administration, and other costs. Construction of the project was contingent upon receipt of additional funding and on March 24, 2016, the Alameda County Transportation Commission approved Measure BB allocation of $11.2 million for the project in Fiscal Year 2015-16. This is in addition to $6.27 million of previously programmed Measure B funding, which illustrates the importance of Dougherty Road to the greater Tri-Valley region. Construction duration is set at 465 calendar days, or approximately 16 months, in the project specification. The plans and specifications were developed to provide for phased construction, in order to safely deliver the project and to maintain traffic. The first phase of construction will include widening the roadway with new asphalt, curb, and gutter on the east side of Dougherty Road. This will allow for traffic to be maintained on the existing pavement (west side). Upon completion of the new roadway section, traffic will be moved to the east side, to allow the contractor to construct the raised landscape median and repair existing damaged pavement. During construction there will be times where travel lanes will be closed, however at no time will the road be closed to two-way traffic. Outreach Efforts The project team will notify adjacent businesses and home owners associations by mail. The project will also include installation of electronic messaging signs in advance of the start of work. The signs will inform the public of the upcoming work and that the construction may result in some travel delays. At times, intersecting streets and driveways will be temporarily closed to allow for construction at those specific locations. At those times, notices and signs will be placed to inform residents, customers, and visitors of alternative routes to the effected property. Finally, as construction approaches, the City website will be updated to include project information and contact information should the public have questions. NOTICING REQUIREMENTS/PUBLIC OUTREACH: None. ATTACHMENTS: None. Page 4 of 4 Summer 2016 Roadway Construction Projects April 5, 2016 Larger Roadway Projects •Moller Creek Culvert & Tassajara Road •Dougherty Road Improvements •Tassajara Road Overlay – Dublin Boulevard to North Dublin Ranch Drive Moller Creek Culvert •Culvert Replacement –Road Closure May 2 through December –Coordination With Neighboring Agencies –Construction Includes •Bypass 20-inch DSRSD Water Line •Excavation up to 60 feet deep •Remove: 9-foot diameter, 140-foot long CMP culvert •Install: 18-foot diameter, 400-foot long steel culvert •Construct new roadway Moller Creek Culvert Public Outreach Dougherty Road Improvements •Complete Streets Improvement Project –From Sierra Lane to north city limit –Widen From 4-lanes to 6-lanes –Install raised and landscaped median –On street bicycle lanes, bus stops –Budget: $23M, Construction Estimate: $14.6M –Bid Opening – April 26 – Start Construction July –Construction Duration – 16 months Dougherty Road Improvements Dougherty Road Improvements Before After Tassajara Road Overlay •Pavement Maintenance Project –2” Rubberized Hot Mix Asphalt (RHMA) Overlay –Bid Opening - May –Start Construction - July –Construction Estimate: $2.2M Dublin Blvd Central Pkwy Gleason Dr South Dublin Ranch Dr North Dublin Ranch Dr www.dublin.ca.gov/roadwork