Highway Structure Design and Inspection Guidance – Structure Inspection Section

The following STRUCTURE INSPECTION Guidelines and Procedure Memorandums (GPM) have been developed to provide information to engineers and structure inspectors on the procedures associated with the proper inspection of highway structures. Please note that the Guidelines and Procedures may not cover all areas of structure inspection. Contact the Office of Structures with any specific questions.

Structure Inspection Guidelines and Procedure Memorandums (GPM)

GPM Number	Description	Approval Date
OOS-GPM-SI-101	General Definitions	08-06-2026
OOS-GPM-SI-102	Inspection Organizational Roles and Responsibilities	08-06-2026
OOS-GPM-SI-103	Qualifications of Personnel	08-06-2026
OOS-GPM-SI-104	Hands-On Inspection (HOI) and Modified Hands-On Inspection (MHOI)	08-06-2026
OOS-GPM-SI-105	Increased Inspection Frequency	08-06-2026
OOS-GPM-SI-106	Routine Inspection	08-06-2026
OOS-GPM-SI-107	Non-Redundant Steel Tension Member (NSTM) Inspection	08-06-2026
OOS-GPM-SI-108	Complex Bridge Inspection Program	08-06-2026
OOS-GPM-SI-109	Monitor Inspection	08-06-2026
OOS-GPM-SI-110	Damage Inspections	08-06-2026
OOS-GPM-SI-111	Inquiry Inspections	08-06-2026
OOS-GPM-SI-112	Audit Inspection	08-06-2026
OOS-GPM-SI-113	Flood Response Program and Inspection	08-06-2026
OOS-GPM-SI-114	Documentation for Changes to Sour Ratings	08-06-2026
OOS-GPM-SI-115	Non-Destructive Evaluations (NDE) Program	08-06-2026
OOS-GPM-SI-116	Underwater Bridge Inspection Program	08-06-2026
OOS-GPM-SI-117	Critical Findings	08-06-2026
OOS-GPM-SI-118	Defects	08-06-2026
OOS-GPM-SI-119	Information Retention	08-06-2026
OOS-GPM-SI-120	Quality Control/ Quality Assurance	08-06-2026
OOS-GPM-SI-121	Posting of Highway Structures for Weight Restrictions	08-06-2026