Public Works Standards & Specifications Manual

**NOTE—This manual goes into effect on November 18, 2020. All projects with Stage 3 of the Public Infrastructure Review Stage Process submitted after this date are required to follow this new manual. Projects with Stage 3 submitted before November 18, 2020, will continue to follow the previous standards and specifications versions and stage checklists found on the Development Services web pages here.**


Chapter 1 – General Provisions (chapter text expected in mid-2022)

Appendix 1-A – Definitions

Chapter 2 – Construction Within the Right-of-Way (see "2021 Proposed Manual Updates")

Appendix 2-A – Standard Modifications to MPWSS
Appendix 2-B – Standard Drawings—See also individual chapters for related drawings
Appendix 2-C – Services in Right-of-Way Request

Chapter 3 – Improvement Plans

Appendix 3-A – Site Plan Checklists (Commercial & Residential)
Appendix 3-B – Public Infrastructure Review – Stage Process Checklists
Appendix 3-C – MFE Packet Requirements
Appendix 3-D – PIRSP Roadmap

Chapter 4 – Water System

Appendix 4-A – Cross-Connection/Backflow Protection Program
Appendix 4-B – Water Ditch Card Template
Appendix 4-C – Allowable Non-Storm Water Discharges Policy

Chapter 5 – Sanitary Sewer System

Appendix 5-A – 2014 City of Missoula STEP Manual
Appendix 5-B – FOG Sector Control Program
Appendix 5-C – Grease Interceptor Sizing Worksheet
Appendix 5-D – Sewer Ditch Card Template

Chapter 6 – Storm Water System

Appendix 6-A – Storm Water Management Site Plan Review Checklist
Appendix 6-B – Storm Water Site Evaluation Form (updated 3-24-2021)
Appendix 6-C – Storm Water Drainage Report Content
Appendix 6-D – Storm Water Facility Maintenance Agreement
Appendix 6-E – Operation and Maintenance Manual
Appendix 6-F – Test Pit Infiltration Test Method

Chapter 7 – Transportation System

Chapter 8 – Erosion Control

Appendix 8-A – City Storm Water Compliance Permits Flow Chart
Appendix 8-B – Storm Water Permit
Appendix 8-C – Erosion Control Site Plan Review Checklist
Appendix 8-D – Storm Water Site Evaluation Form
Appendix 8-E – Construction Site Inspection Form