This is a service / maintenance or supply contract in San Bernardino, California. Contact the soliciting agency for additional information.

Purpose The San Bernardino County Flood Control District is seeking Proposals from interested and qualified Proposers to prepare a Master Plan of Drainage (MPD) for the unincorporated area of Big Bear City to be used as a planning tool/resource for implementing future flood control infrastructure within MPD boundary. Please refer to Section V, Scope of Work, and Section VI, Proposal Submission, for additional information. Proposals must be submitted via hard copy with original signature (and one copy on a flash drive) submitted to the address indicated above. All Proposers must register with the ePro system prior to the date and time to submit the proposal or they will be disqualified. Contract Term Services to be provided under this Request for Proposals (RFP) are outlined under Section V, Scope of Work. The Contract period will be for a maximum of 3 years beginning on the day the contract is awarded and ending on the completion of the Services, or 3 years after the contract award date, whichever is earlier. Deadline for Submission of Questions 3:00 PM Local Time, August 27, 2025 Questions regarding the contents of this RFP must be submitted in writing in ePro on or before the Deadline for Submission of Questions. All questions will be answered and both the question and answer will be posted as an Addendum to the RFP in ePro. Date for Tentative Contract Award November 18, 2025 PROJECT DESCRIPTION 1. Project goals and objectives The District is seeking Proposals from interested and qualified Proposers to prepare a Master Plan of Drainage for the unincorporated area of Big Bear City. See Exhibit B for general study area. The MPD must include, at a minimum, the following sections: a. Executive Summary Section including, but not limited to, the basis of study, study approach, characteristics of the watershed, development of the master plan alternatives, issues and considerations, and conclusions and recommendations. b. Introduction Section including, but not limited to, the study area, purpose/general intent, goals and objectives, policies, stakeholders, Flood Control District Act compliance, facility designations (e.g. regional vs. secondary vs. local facility), and the use of study/disclaimer. c. Environmental Considerations and Regulatory Section including, but not limited to, policies and regulations, wildlife habitat, natural aesthetics, routine access for maintenance and improvements, and historical discussion. d. Hydrology Section including, but not limited to, an introduction, boundary development, watershed characteristics, hydrologic model parameter development, rational method studies, unit hydrograph studies, and hydrologic factors (land use, hydrologic soil groups, loss rate criteria, precipitation analysis, antecedent moisture condition (AMC), etc.). e. Existing Infrastructure Section including, but not limited to, existing drainage facilities and basin analyses, historical investigation, and deficiency analyses. f. Hydraulic Modeling, Design Criteria and Facility Sizing Section including, but not limited to, an introduction, discussion of closed conduits and open channel hydraulics and design criteria, alignments and proposed drainage facilities (brief discussion of each drainage system), basin considerations, debris yield and bulking factors, and design storm frequencies. g. Debris and Detention Basin Analysis Section including, but not limited to, locations, detention basin options, alternatives, and recommendations. h. Cost Estimate Section including, but not limited to, an introduction, assumptions, types of costs (construction, acquisitions, environmental mitigation), open channel costs, closed conduit costs, debris basin costs, contingencies, development fees analysis, and discussion of funding opportunities. This section provides general costs assumptions and drainage system specific costs are to be provided in a separate volume with the specific drainage system plans and profiles. i. Priority Recommendations Section including, but not limited to, general recommendations and specific project recommendations and priorities. j. Conclusion and Recommendations Section including, but not limited to, an introduction, study conclusions and final recommendations. Deadlilne for submission of Questions : 3:00 PM, September 4, 2025.