The CWCB has promulgated new floodplain rules and regulations that became effective on January 14, 2011. The rules provide for increased public safety and reduced flood losses across the state. Documents posted on this page are intended for public use to share information about the entire rulemaking process. 
 
Rules and Regulations Hearing Documents

•  CWCB Adopted Floodplain Rules and Regulations (Adoption Date: 11/17/10; Effective Date: 1/14/11)
•  Hearing Notebook Table of Contents
•  Notice of Public Rulemaking
•  Statement of Basis and Purpose and Proposed Rules (~23 MB)
•  Existing Flood Plain Rules (2005)
•  Benefit, Cost and Regulatory Analysis
•  Party Status Application
•  Pre-Hearing Statements
•  Rebuttal Statement
•  Other Hearing Materials (motions, etc. files by parties)
•  Public Comments (Post-Notice - Sept 30th Forward)
•  Public Comments (Pre-Notice - Prior to Sept 30th)
•  Rulemaking Board Memos (Beginning May 2009)

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•  Floodplain Standards
•  Floodplain Rules Guidance Document
•  Cost, Benefit, and Regulatory Analysis for Floodplain Rules
•  Addendum #1 to Benefit, Cost, and Regulatory Analysis (11.1.10)
•  CWCB Proposed Rules and Regulations with Statement of Basis and Purpose (9.30.10)
•  Rulemaking Notice Filed with the Department of Regulatory Agencies (9.30.10)
•  Overview of Proposed Rules (Latest version 9.28.10)  CWCB staff has officially dropped the 500-year floodplain requirement, which is now reduced to a floodplain management suggestion
•  CASFM / CWCB Rules and Regulations Workshop (PowerPoint presentation - Latest version August 2010)
•  Colorado Snowmelt Flooding - June 2010
•  May 2010 Nashville Flood (PowerPoint presentation)
•  Lessons Learned from April 2010 Rhode Island Floods (PowerPoint presentation)

• Colorado Flood Photographs
• Sign up to receive emails about the process on the CWCB/IBCC Insider (check the Proposed Floodplain Rules and Regulations list)