Reso13 PC 13-24 2920 PC Reso-Adopt the Intitial Study MND - Undercrossing

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1 Project Descrit��ion This connecrion paint would be at least 15 feet from the i�ank of Redwood Creek. The project also includes the demolirion af the existing putnp starion. 1.S PRQJECT CONSTRUCTION The area of potential effects (APE) for constructi.on of the project wou.ld be within rights-of-way held by the City and state {California Department oF Transportation}. The APE includes all a�eas subject to disturbance ftom construction activities,includtng designated staging areas,construction personnel parking areas,and areas for la�down and storage.Access to the project construction axeas would cor�sist of existing paved roads and pathways. 1.5.'! Construction Access Existing paved surfaces would provide access to the project construcrion areas. Baix Island Road wauld provide construction access for work on the east side of US 101 and the staging axeas for the project. Convention Way would provide construcrion access on the west side of US 101. �ccess ta the City-owned parcel would be via Main Street. An estimated 6 to 12 woxkers would travel to and from the project site each day. Construcrion workers would park in designated areas within the APE or aZong Main Street. Trucks would access the site to temove an estimated 230 trucl�oads of excess soil anc� other debris from trenching and excavation and transport these materials to an appropriate disposal site such as the Ox Mountain Landfill in western San Mateo Count�T. Approxiinately 32 truck deliveries would be needed for the wet well,drainage pipes,and pump equipment for the pump station project,and another estimated 95 truck deliveries for cancrete,equipment,lighring,landscape trees,and other site improvement materials for construction of the joint-use path. 1.5.2 Consfructio� Ac#ivities The first stage of construction would consist of construcuon planning and installing exclusionary fenc�ng and temporary erosion control measures at the ptoposed lapdown areas and the construcrion site. The contxactor would install a wash down area at the construcrion entrance using potable water. �nce these systerns are installed, crews would then begin clearing ateas to make way for construction activities and assembling equipment and nnaterials. Pump Statron Construction Construction of the stormwater pump station on Bair Island Road would precede the work of the joint-use path undercrassing. The new pump starion would require excavatian to install the pre- fabricated 2,900-cubic foat wet well. Pile drivers would be needed to i�stall the tempoxary shoring for the installarion of the wet well. Ttenching woula be needed for the 42-inch DIP pipe to connect the Bair Island Road storm drair�s �o the new pu�mp starion site and to rie the 24-inch pipe into the e�sting discharge pipe. Excava�ion for the storm drain pump station woul.d require removal of up to 400 c�abic yards of materials. Assuming the use of 12-cubic yaxd dump trucks, the removal of i �'� US �0� Pedestrian Usadercrn.rsing rand Baar Island Starrsa Draira Pump Statao�a Project