MIASIM

The Michigan Ancillary Structures Inspection Manual (MiASIM) was published in 2022 and last updated in December 2024. This manual provides information on inspection requirements and assessing ancillary structure conditions statewide for administrative, engineering, and technical staff to ensure consistency when documenting conditions of Michigan’s ancillary structures.  

Updates to the MiASIM are ongoing as the program progresses. Updates are summarized at the beginning of the manual and highlighted throughout.

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*Individual Chapters 1 Through 14 Available Below

* Changes Highlighted in Yellow Within Each Chapter

Last Updated: December 2024

MiASIM (UPDATED DEcember 2024)

engineering manual preamble and preface

This manual provides guidance on administrative, engineering, and technical
staff. Engineering practice requires that professionals use a combination of
technical skills and judgement in decision making.

CHAPTER 1. INTRODUCTION AND BACKGROUND

chapter breakdown

  • 1.1 Program Overview
  • 1.2 Quality Assurance and Quality Control
  • 1.3 Ancillary Structure Documentation and Records
  • 1.4 Inspector Qualifications
  • 1.5 Safety Requirements
  • 1.6 Inspection Tools and Equipment
  • 1.7 Inspection Types and Actions
  • 1.8 Request for Action Process
  • 1.9 Special Inspection Procedures
  • 1.10 Element Condition States

CHAPTER 2. CULVERTS LESS THAN 10-FOOT SPAN

chapter breakdown

  • 2.1 Definitions
  • 2.2 Inventory Record Photographs
  • 2.3 Inspector Minimum Technical Qualifications
  • 2.4 Routine Instruction
  • 2.5 Work Recommendation Guidance
  • 2.6 Request for Action Guidance
  • 2.7 Element Condition States

CHAPTER 3. RETAINING WALL

chapter breakdown

  • 3.1 Definitions
  • 3.2 Inventory Record Photographs
  • 3.3 Inspector Minimum Technical Qualifications
  • 3.4 Routine Instruction
  • 3.5 Work Recommendation Guidance
  • 3.6 Request for Action Guidance
  • 3.7 Element Condition States

CHAPTER 4. CANTILEVER AND TRUSS STRUCTURES

chapter breakdown

  • 4.1 Definitions
  • 4.2 Inventory Record Photographs
  • 4.3 Inspector Minimum Technical Qualifications
  • 4.4 Routine Instruction
  • 4.5 Work Recommendation Guidance
  • 4.6 Request for Action Guidance
  • 4.7 Element Condition States

CHAPTER 5. embedded pole

chapter breakdown

  • 5.1 Definitions
  • 5.2 Inventory Record Photographs
  • 5.3 Inspector Minimum Technical Qualifications
  • 5.4 Routine Instruction
  • 5.5 Work Recommendation Guidance
  • 5.6 Request for Action Guidance
  • 5.7 Element Condition States

CHAPTER 6. SPUN CONCRETE POLE

chapter breakdown

  • 6.1 Definitions
  • 6.2 Inventory Record Photographs
  • 6.3 Inspector Minimum Technical Qualifications
  • 6.4 Routine Instruction
  • 6.5 Work Recommendation Guidance
  • 6.6 Request for Action Guidance
  • 6.7 Element Condition States

CHAPTER 7. STEEL STRAIN POLE

chapter breakdown

  • 7.1 Definitions
  • 7.2 Inventory Record Photographs
  • 7.3 Inspector Minimum Technical Qualifications
  • 7.4 Routine Instruction
  • 7.5 Work Recommendation Guidance
  • 7.6 Request for Action Guidance
  • 7.7 Element Condition States

CHAPTER 8. NOISE WALL

chapter breakdown

  • 8.1 Definitions
  • 8.2 Inventory Record Photographs
  • 8.3 Inspector Minimum Technical Qualifications
  • 8.4 Routine Instruction
  • 8.5 Work Recommendation Guidance
  • 8.6 Request for Action Guidance
  • 8.7 Element Condition States

CHAPTER 9. mAST ARM

chapter breakdown

  • 9.1 Definitions
  • 9.2 Inventory Record Photographs
  • 9.3 Inspector Minimum Technical Qualifications
  • 9.4 Routine Instruction
  • 9.5 Work Recommendation Guidance
  • 9.6 Request for Action Guidance
  • 9.7 Element Condition States

CHAPTER 10. DYNAMIC MESSAGE SIGNS (dms) SUPPORT STRUCTURE

chapter breakdown

  • 10.1 Definitions
  • 10.2 Inventory Record Photographs
  • 10.3 Inspector Minimum Technical Qualifications
  • 10.4 Routine Instruction
  • 10.5 Work Recommendation Guidance
  • 10.6 Request for Action Guidance
  • 10.7 Element Condition States

CHAPTER 11. FRANGIBLE AND NON-FRANGIBLE POLE STRUCTURE

chapter breakdown

  • 11.1 Definitions
  • 11.2 Inventory Record Photographs
  • 11.3 Inspector Minimum Technical Qualifications
  • 11.4 Routine Instruction
  • 11.5 Work Recommendation Guidance
  • 11.6 Request for Action Guidance
  • 11.7 Element Condition States

CHAPTER 12. HIGH MAST LIGHTING TOWER (hmlt)

chapter breakdown

  • 12.1 Definitions
  • 12.2 Inventory Record Photographs
  • 12.3 Inspector Minimum Technical Qualifications
  • 12.4 Routine Instruction
  • 12.5 Work Recommendation Guidance
  • 12.6 Request for Action Guidance
  • 12.7 Element Condition States

CHAPTER 13. COMMUNICATION TOWER

chapter breakdown

  • 13.1 Definitions
  • 13.2 Inventory Record Photographs
  • 13.3 Inspector Minimum Technical Qualifications
  • 13.4 Routine Instruction
  • 13.5 Work Recommendation Guidance
  • 13.6 Request for Action Guidance
  • 13.7 Element Condition States

CHAPTER 14. ENVIRONMENTAL SENSOR STATION (ESS) TOWER

chapter breakdown

  • 14.1 Definitions
  • 14.2 Inventory Record Photographs
  • 14.3 Inspector Minimum Technical Qualifications
  • 14.4 Routine Instruction
  • 14.5 Work Recommendation Guidance
  • 14.6 Request for Action Guidance
  • 14.7 Element Condition States

appendix a - inspection frequency

Download Appendix A