SIAM: Stream Impact Assessment Manual for the Northern Virginia Stream Bank

Version 1.3, April 2006 (Revision #2, December 28, 2006) (click here for a printable copy of the index)

• SIAM Manual

  • Cover pages

  • Table of Contents

  • Preface

  • Section 1: Stream Assessments

  • Section 2: Stream Impacts

  • Section 3: Stream Compensation

  • Section 4: Restoration Practice Guidelines, Monitoring Criteria, and Success Criteria

  • Section 5: Project Example

  • Appendix A: Blank Forms

  • Appendix B: Guide to Common Stream Benthic Macroinvertebrates of Virginia

  • Appendix C: Riparian Buffer Seed Mix

• SIAM Forms (click here for SIAM_forms.xls)
  Contains spreadsheets required for completing an assessment of streams that will be compensated for using the Northern Virginia Stream Restoration Bank. Refer to Section 5 of the SIAM Manual for an example project that applies these forms. The Credit Estimation Form is also included.

  • Form 1-1: SIAM Field Form

  • Form 1-2: SIAM Summary of Stream Assessments

  • Form 2-1: SIAM Impact Assessment Worksheet

  • Form 3-2: SIAM Restoration Compensation Summary Worksheet

  • Forms 3-3: SIAM Forms 3-3a & 3-3b

    • Form 3-3a: Weighted Drainage Area for Impacted Streams (DAWI) - Calculation Worksheet

    • Form 3-3b: Weighted Drainage Area for Stream Compensation (DAWC) - Calculation Worksheet

  • Form 3-4: SIAM Restoration Compensation Summary Worksheet - Piedmont Region

  • Credit Estimation: Northern Virginia Stream Restoration Bank - Credit Estimation Form (Revision #2 December 28, 2006)

• SIAM Credit Estimation-Example - (Revision #2, December 28, 2006) (click here for pdf)