Job Safety Analysis: Culvert Headwall Repairs

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Step Potential Hazard Control
Assess work area Traffic exposure, unstable banks, uneven ground, flowing water Conduct site walk; establish MUTCD compliant traffic control if roadside; identify safest access path; evaluate water flow hazards
Inspect tools, equipment, and materials Damaged tools, malfunctioning mixers, defective PPE Perform pre operation inspection; check all concrete tools, mixer components, and lifting equipment
Don required PPE Flying debris, concrete splatter, sharp edges Wear gloves, safety glasses, long sleeves, high visibility vest, and steel toe boots
Establish safe work zone Crew entering unstable areas, equipment swing hazards Set exclusion zones; assign lookout for traffic and equipment; keep unnecessary personnel out of area
Remove damaged concrete or stone Flying chips, dust inhalation, tool kickback Use hammers or saws carefully; wear respirator when cutting; stand clear of workers chiseling or grinding
Excavate around headwall (if required) Cave in risk, falling material, equipment tipping Slope or bench soil; keep crew out of excavation; maintain safe distance from edges; use spotter for equipment
Stabilize exposed soil Soil sloughing, collapse Install temporary shoring or compact soil as needed; avoid standing beneath unstable banks
Prepare surface for repair Sharp edges, dust Smooth damaged areas with grinder or chisel; use eye and respiratory protection; clean surface with brush or blower
Mix concrete or mortar Cement burns, dust exposure, splash hazards Wear gloves and respirator; avoid direct contact with wet cement; add water carefully to avoid splashing
Place and finish materials Heavy lifting, pinch points, concrete burns Use team lifts for heavy bags; keep hands clear when placing stone; trowel carefully to avoid splatter
Install formwork (if needed) Pinch points, falling forms, improper bracing Secure forms properly; use level ground when placing braces; avoid standing under suspended materials
Handle riprap or stone facing Rolling rocks, crushed fingers, unstable footing Use machinery for large stones; use team lift for smaller stones; ensure stones are stable before stepping away
Monitor water flow Sudden rise in flow, materials washed away If water is present, divert using sandbags or temporary pipes; never stand directly in front of culvert outlet
Cure and protect repair area Unauthorized access, premature damage Set barriers to prevent disturbance; cover concrete if needed; keep public and crew off curing surfaces
Clean tools and equipment Cement burns, slips from wet concrete Rinse tools in designated area; avoid washing concrete into waterways; dispose of material responsibly
Final inspection Uneven surfaces, missed defects Check alignment, finish, and stability; ensure area drains properly and that materials are secure
Restore site Loose debris, tripping hazards Remove leftover stone, wood, tools, and barriers; smooth disturbed soil; restore vegetation if required
Remove traffic control Exposure to moving vehicles Remove cones and signage in reverse order; maintain lookout; keep PPE on until clear

Suggested Personal Protective Equipment

  • Hard hat

  • Safety glasses or face shield

  • High visibility vest or jacket (Class 3 if roadside)

  • Steel toe boots

  • Cut resistant gloves

  • Long pants and long sleeves

  • Hearing protection when using power tools

  • Respirator if cutting or mixing concrete or mortar

Always have a complete, well-stocked first aid kit available.

JSA Category: Stormwater, Drainage, and Waterways

* The steps, hazards, and controls displayed above may be incomplete or not suit your department's needs. All job safety analyses should be a completed with frontline worker input to ensure that each potential hazard is identified and mitigated.

Please read about The Essentials Elements of a Solid Job Safety Anaylsis here.

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Job Safety Analysis
Step Potential Hazard Control
Assess work area Traffic exposure, unstable banks, uneven ground, flowing water Conduct site walk; establish MUTCD compliant traffic control if roadside; identify safest access path; evaluate water flow hazards
Inspect tools, equipment, and materials Damaged tools, malfunctioning mixers, defective PPE Perform pre operation inspection; check all concrete tools, mixer components, and lifting equipment
Don required PPE Flying debris, concrete splatter, sharp edges Wear gloves, safety glasses, long sleeves, high visibility vest, and steel toe boots
Establish safe work zone Crew entering unstable areas, equipment swing hazards Set exclusion zones; assign lookout for traffic and equipment; keep unnecessary personnel out of area
Remove damaged concrete or stone Flying chips, dust inhalation, tool kickback Use hammers or saws carefully; wear respirator when cutting; stand clear of workers chiseling or grinding
Excavate around headwall (if required) Cave in risk, falling material, equipment tipping Slope or bench soil; keep crew out of excavation; maintain safe distance from edges; use spotter for equipment
Stabilize exposed soil Soil sloughing, collapse Install temporary shoring or compact soil as needed; avoid standing beneath unstable banks
Prepare surface for repair Sharp edges, dust Smooth damaged areas with grinder or chisel; use eye and respiratory protection; clean surface with brush or blower
Mix concrete or mortar Cement burns, dust exposure, splash hazards Wear gloves and respirator; avoid direct contact with wet cement; add water carefully to avoid splashing
Place and finish materials Heavy lifting, pinch points, concrete burns Use team lifts for heavy bags; keep hands clear when placing stone; trowel carefully to avoid splatter
Install formwork (if needed) Pinch points, falling forms, improper bracing Secure forms properly; use level ground when placing braces; avoid standing under suspended materials
Handle riprap or stone facing Rolling rocks, crushed fingers, unstable footing Use machinery for large stones; use team lift for smaller stones; ensure stones are stable before stepping away
Monitor water flow Sudden rise in flow, materials washed away If water is present, divert using sandbags or temporary pipes; never stand directly in front of culvert outlet
Cure and protect repair area Unauthorized access, premature damage Set barriers to prevent disturbance; cover concrete if needed; keep public and crew off curing surfaces
Clean tools and equipment Cement burns, slips from wet concrete Rinse tools in designated area; avoid washing concrete into waterways; dispose of material responsibly
Final inspection Uneven surfaces, missed defects Check alignment, finish, and stability; ensure area drains properly and that materials are secure
Restore site Loose debris, tripping hazards Remove leftover stone, wood, tools, and barriers; smooth disturbed soil; restore vegetation if required
Remove traffic control Exposure to moving vehicles Remove cones and signage in reverse order; maintain lookout; keep PPE on until clear
Suggested Personal Protective Equipment