HUITT-ZOLLARS INC 1 - 2009 - Laserfiche WebLink

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o (1) for all four MSE walls Foundation Reports (3): o (1) for the overcrossing structure o (1) for 2 MSE walls on west approach o (1) for 2 MSE walls on east approach Geotechnical Design Report (1) Materials Report (1) Task 4.4.3 Aerially Deposited Lead (ADL) Scope would include testing the unpaved areas of the project along the freeway and in the overcrossing abutment approaches at a spacing of about 300 feet for ADL contamination and presenting the findings in a report. Task 4.4.3(a) Pre -Field Activities The Huitt- Zollars Team will utilize its in -house Health and Safety Plan and submit a Work Plan for field activities. The Health and Safety Plan includes guidelines for the use of personal protective equipment and sampling procedures. The Work Plan addresses procedures of sampling and laboratory analysis. Task 4.4.3(b) Soil Sampling Hand augers will be used advanced to a maximum depth of 4 feet to collect samples in unpaved areas. Task 4.4.3(c) Laboratory Analysis Samples that are sent to the laboratory will be analyzed for lead using the EPA Method 601013/7000. Soil with total lead concentrations in excess of 50 mg /kg will be analyzed for soluble lead using the WET, TCLP and deionized water extract methods. Task 4.4.3(d) Analysis and Report Preparation The results of the sampling and testing would be statistically analyzed using methods consistent with Caltrans requirements, and the findings would be submitted in a project ADL report. Geometric Approval Drawings (GAD) TASK 5.0 GEOMETRIC APPROVAL DRAWINGS Huitt- Zollars will prepare the GAD. The purpose of the GAD is to identify that the proposed design meets the requirements of the Highway Design Manual (HDM), establish a project base map and formally confirm that the design meets the operational needs of the facility. Huitt- Zollars will prepare a GAD in strip plot format. The GAD submittal package will include 2035 traffic forecast volumes from Task 2.0 the Traffic Report, typical sections, plan view exhibits, profiles, superelevation diagrams, a signature block and a Traffic Volumes diagram. The General Plan Sheet from the Type Selection Report will serve as the APS. Components of the GAD will include: Task 5.1 Data Collection Huitt - Zollars will collect existing data as available to aid in the development of the GAD. Data collection will include as- builts of SR -55 and Alton Avenue, related Caltrans reports such as the Transportation Concept Report, recent drainage studies (if any), landscaping and aesthetic guidelines (if any). Task 5.2 Base Geometrics Huitt - Zollars will prepare a base geometric exhibit that includes geometric data required to construct the project. Geometric curve data will be organized in a data table. A legend and abbreviations list will be prepared. Task 5.3 Typical Sections Huitt - Zollars will refine the Project Report typical sections for freeway lanes, ramps and arterial road improvements that include original ground, traveled way, shoulders, cut/fill slopes, retaining and sound walls existing / proposed right -of -way and existing / recommended structural sections.