Grading, Erosion and Sediment Control Manual (GESC)


  • Section 1: Introduction

    This section introduces the 7 types of GESC and/or DESC Permits and discusses the reasons and legislative mandate for the GESC/DESC Permit Program. The section summarizes the 20 Permit Steps involved in Temporary Batch Plant and Standard GESC Permits and describes the authorization of the GESC Manual. Sections 2 through 6 cover the entire 20-step process for these two types of GESC Permits. The remaining types of GESC/DESC Permits are discussed throughout the GESC Manual and in particular in Sections 7 through 9 - Updated May 2013

  • Section 2: Getting Started

    This section provides information for the Permittee(s) on the first 3 steps in the 20-step GESC Permit Process. It clarifies that a Professional Engineer shall prepare a GESC Plan, describes four types of GESC Plans, and identifies related plans and permits that must be addressed. Updated May 2013

  • Section 3: Preparing a GESC Plan

    This section provides guidance for the Design Engineer on Step 4, Preparing a GESC Plan following the 10 elements of an effective GESC Plan, Design and sizing criteria for BMPS, GESC Drawing requirements, and GESC Report requirements. The section includes detailed step-by-step instructions for preparing the drawings, report, and other documents that make up the GESC Plan. Updated May 2013

  • Section 4: GESC Plan Acceptance and GESC Permit Application

    This section describes the process of applying for a GESC Permit (Steps 5 through 7), from the review and approval of the GESC Plan documents to filling out the permit application, paying the permit fee and posting fiscal security. Updated May 2013

  • Section 5: Field Section

    This section provides information for field personnel on Steps 8 through 14, covering the construction of the project, including designation of the GESC Manager, installation of Initial BMPs, the mandatory Preconstruction Meeting, picking up the completed GESC Permit, the construction inspection process, and violations and enforcement. Updated May 2013

  • Section 6: Project Acceptance and Close-out

    This section describes the last 6 steps in the process, including the Initial Close-out Inspection, requirements for vegetation establishment, final inspections, removal of BMPs when the Permittee(s) leave the site, and the release of fiscal security. Updated May 2013

  • Section 7: Low Impact Permit

    This section addresses a streamlined, 10 step process for the Low Impact GESC Permit. Updated May 2013

  • Section 8: Drainage, Erosion and Sediment Control (DESC) Requirements

    This section provides information for the Permittee(s) related to the Douglas County Drainage, Erosion and Sediment Control (DESC) Program including preparing and DESC Plan and information for field personnel. Updated January 2014.

  • Section 9: Small Utility GESC Permit

    This section provides information for the permittee(s) related to the Small Utility Grading, Erosion and Sediment Control (GESC) Annual Small Utility GESC Permit including when a small utility GESC Plan is required, preparing a Small Utility GESC Plan and information for field personnel. Updated May 2013

  • Section 10: Acronyms, Glossary and Bibliography

    This section provides a glossary of terms and acronyms used in the GESC Manual. Updated May 2013

Appendix A-Contact List

Appendix B-Standard Notes and Details

Appendix D-Checklist for Developing a GESC Plan

Appendix E-Seed Mix Information

Appendix F-Douglas County Acceptance Block

Appendix G-Drawing and Report Checklist

Appendix H-Example Hold Harmless Letter

Appendix I-Opinion of Portable Cost Example Spreadsheet

Appendix J-Permit Applications

Appendix K-Irrevocable Letter of Credit Form

Appendix L-Release of Fiscal Security Request Form

Appendix M-Small Utility Project Notification Form

Appendix O-DESC Forms

Department of Public Works Engineering

Fred Koch, P.E.

Public Works Engineering Director

100 Third Street, Suite 250
Castle Rock, CO 80104
Phone: 303.660.7490
Fax: 303.379.4198

Traffic Services / Operations

Phone: 303.663.6237
Fax: 303.484.6355

Permits & Inspections

Phone: 303.660.7487
Fax: 303.379.4198

Office Hours

8:00 a.m. - 5:00 p.m.