Agmt14 Huffman-Broadway Group, Inc.

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Drafr Redwood Creek De�ciency Review report provides sufficient details (location, photographs, description of repairs etc.)for the agencies to issue permits. However, repairs that involve replacing trapezoidal concrete channel sections and concrete panels will require, at a minimum, typical cross sections and plan view drawings iliustrating the typica) dimensions, materials, and location of USACE, RWQCB and CDFW limits of jurisdiction (e.g., ordinary high water mark and top-of-bank). A typical plan view drawing of how a project site would be dewatered will also be required. CONSULTANT by its GIS / AutoCADD staff working with Dr. Terry Huffman or Robert Perrera, shall prepare these types of typical drawings. If required, CONSULTANT shall provide a civil engineer and/or hydrologist to prepare a more detailed design related to replacement of the trapezoidal concrete channel sections and concrete panels. The deliverable items are as follows: 1. Prepare typical cross section and plan view drawings sufficient to satisfy regulatory agencies basic requirements. 2. If required, CONSULTANT will provide a more detailed design related to replacement of the trapezoidal concrete channel sections and concrete panels, prepared by a civil engineer and/or hydrologist provided by CONSULTANT. Additionally, it is likely the regulatory agencies will request an alternative to replacing the trapezoidal concrete channel sections and concrete panels with a bioengineered channel to soften the banks and channel bottom to allaw vegetation growth. If one or more agencies request that such an alternative be explored, CONSULTANT will first work with City staff to determine if a bioengineered flood control alternative is logistically practicable taking into consideration private property rights and immediate flood control concerns. Second, CONSULTANT will provide a civil engineer and hydrologist to determine if design modifications using bioengineering techniques would satisfy the project purpose. Last, CONSULTANT will work with City staff to determine the practicability of a bioengineered flood control alternative in terms of cost. The deliverable items are as follows: 1. Using a civil engineer and/or hydrologist prepare a conceptual assessment related to replacing the trapezoidal concrete channel sections and concrete panels with bioengineering techniques to soften the banks and channel bottom to allow vegetation grawth. 2. Working with City staff,assess the economic and logistical practicability to address alternatives. 3. Prepare a letter report addressing the issues related to such alternatives. 4. Attend one meeting with City and Agency to discuss alternatives REV:O1-06-1415 Page 14 of 17 ATTY/AGR.2014.003/HBG Redwood Creek Permitting