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Government
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Drain Commissioner
Storm Water Management
Storm Water Management
Administrative Guidelines for Storm Water Management
Appendix A - Gratiot County Application (PDF)
Appendix B - Conceptual Review Checklist (PDF)
Appendix C - Drainage Plan Checklist (PDF)
Appendix D - Detention Pond Calculator (XLS)
Appendix E - Chart for C Factors (PDF)
Appendix F- Maintenance Agreement (DOC)
Appendix G - Inspection Daily Report (PDF)
Appendix H - Detention and Restriction, Final Inspection Report (PDF)
Appendix I - Engineer Certificate of Outlet (PDF)
Appendix J - Engineer Certificate of Construction (PDF)
Gratiot County Drain Commissioner Rules and Guidelines (PDF)
County Drain Map
Drain Agreements & Applications
Drain Assessment Payoff Form
Storm Water Management
Pre-Qualified Contractors List
Bids
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