PLANNING CENTER, THE 8E - 2012 - Laserfiche WebLink

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Deliverable: Draft and Final Preliminary Engineering Plans In{ I'LIMINARY cos'r ESTIMATE This task involves the development of planning -level construction associated with the build alternative, Budget -level estimates for future project phases will be developed based on estimated construction costs. Construction Cost Estimates 1131 will use the engineering plans and utilities and drainage studies to prepare planning level estimates for probable construction costs for each of the build alternatives. Quantities and costs will be organized in these categories: civil /roachvay, earthwork, traffic, retaining walls, utility relocations, drainage modiftcations, and landscaping and irrigation. Cost items tinder each section will include unit cost, estimated quantity, and total cost. Lump sums for supplemental items (e.g., temporary erosion control) and Items not quantifiable at this phase will be calculated as a percentage of the total. An overall contingency will be applied to account for unknowns. Unit cost information will be obtained from published sources (2007 Caltrans Cost Data Book, Butt 2008 Costbook for Public Works, etc.) and recent relevant projects. City staff will review an Initial cost estimate template (including cost Items and their associated unit costs). After they concur, cost estimates will be prepared and draft street Improvement plans and cost eslimates will be submitted to the City at the same time as the Preliminary ringineering Report, Cost estimate calculation worksheets will be included in the appendix. Cost Estimates for Future Project Phases 1131 will use the conduction and ROW cost estimates to develop budget -level costs for each build alternative of subsequent project phases, including: final design (PSH) and construction managennent. These costs will be in the Prelbninary Engineering Report, with any backup.calculation information included in the appendix. Deliverable: • Cost Ntimate Summary Worksheets RIGHT-OF-WAY MAPS - Based on the selected roadway improvement plans, VA Consulting will prepare 24' x 36" ROW maps at it scale of 1" =40'. These maps will include existing and-new street centerlines, existing and proposed right of way lines, property lines, agency boundaries, all adjacent parcels and cross - streets, topography, building footprints, parcel numbers, addresses, indication if full or partial take of each property and amount of ROW being taken from each parcel. Deliverable: O Final snaps on mylar and electronically as both pdf and dgn files. SURVEYS AND GIS MAPPING Establish environmental baseline data In a manner compatible with engineering and topographic mapping. Coordinate with Base;4fapping (165,10.20) on the environmental components /data to be included in the GIS database, including Section 4(f) resources, historic properties, 100 -year fioodplain, hazardous materials sites, sensitive visual features, land uses and right -of- way and noise receptors. Data from publicly available, sources will be used as a starting point and adjusted, as appropriate, based on field surveys and observations conducted by The Planning Center team, Data will be provided lit a manner consistent with the base snapping (160.10.20) to ensure that the datasets are compatible and call be utilized for evaluation of each alternative's effects on the environment. City o! Santa Ana - Proposal to Prepare Environmental Documents for Warner Avenue Widening Project The Planning Center I Page 7