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66. CONTRACTS FOR ON CALL PROFESSIONAL ENGINEERING AND DESIGN SERVICES Approve four Fiscal Year Contracts for the purpose of pending and new projects requiring On-Call Professional Engineering and Design Services. Each contract is effective for 730 calendar days with the option for a one year renewal following the Board of Supervisors approval or until the expenditure of $2,000,000 whichever occurs first. Contracts are as follows: Contract No. 2011-001 – T.Y. Lin International, Inc. Contract No. 2011-002 – Dibble & Associates Consulting Engineers, Inc. Contract No. 2011-003 – Premier Engineering Corporation Contract No. 2011-004 – Nfra, Inc. A broad range of design support services are anticipated under the on call professional engineering and design services contract. The Consultant will provide professional services in the area of: roadway plan and profile drawings; preparation of cost estimate quantity takeoffs; preparation of projects specifications; preparation of preliminary design or Design Concept Reports; provide post design services; technical memorandums; preparation of small drainage studies; design of highway structures (box culverts; head walls; retaining walls; irrigation and storm drain manholes and junction structures; bridges; scour protection); Value Engineering; and economic analysis. Supervisory Districts: All C-91-11-209-5-00 C-91-11-210-5-00 C-91-11-211-5-00 C-91-11-212-5-00 (C-91-11-213-5-ZZ)