Job Safety Analysis: Slope Mowing

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Step Potential Hazard Control
Assess slope and terrain Unstable soil, holes, erosion channels, loose rocks, hidden debris Walk the site; identify hazards; mark obstacles; evaluate if slope exceeds equipment capability
Inspect mower and attachments Brake failure, blade damage, hydraulic leaks, faulty PTO Conduct full pre operation inspection; check blades, belts, guards, tracks or tires, and safety controls
Don required PPE Flying debris, noise, uneven terrain Wear hearing protection, safety glasses, gloves, steel toe boots, and high visibility vest
Establish work zone Traffic exposure, mower entering roadway Set up MUTCD compliant cones and signs; assign lookout; never mow with your back to traffic
Determine mowing direction Equipment rollover, operator entrapment Mow up and down slopes rather than across when possible; follow manufacturer slope limits; use remote operated mowers for steep slopes
Clear large debris from slope Slips, snake or insect hazards, sharp objects Remove debris manually before mowing; maintain secure footing; use gloves and long handled tools
Begin mowing operation Rollover, mower slide, flying objects Start mowing at top if safe; maintain slow steady speed; keep discharge pointed away from workers and public
Maintain safe distance from embankment edges Equipment falling into ditch or roadway Stay well back from drop offs; use equipment with slope sensors; have a spotter monitor distance from edges
Operate near obstacles (signs, culverts, guardrails) Equipment strike, operator injury Approach obstacles slowly; mow around manually if needed; avoid tight turns on slopes
Watch for soft or saturated soil Loss of traction, rollover Avoid wet areas; if soil softens, stop and back out slowly; do not attempt sharp turns
Use hand tools for finishing Contact with blades, slips, uneven footing Shut off mower first; use trimmers only when footing is stable; maintain safe spacing between workers
Monitor weather and visibility Reduced traction, poor footing, overheating Stop mowing during heavy rain or lightning; avoid working in low visibility or extreme heat
Shut down mower safely Burns, entanglement Disengage blades before stopping; allow engine to cool; park on level surface
Clean equipment Contact with hot blades, debris ejection Use tools to clear debris; avoid reaching near blades; let mower cool completely
Final site inspection Missed hazards, debris left in roadway Walk slope carefully; clear any remaining debris; ensure drainage structures are unobstructed
Remove traffic control Exposure to traffic Remove devices in reverse order; maintain lookout; keep PPE on until fully clear

Suggested Personal Protective Equipment

  • Hard hat

  • Safety glasses

  • High visibility vest or jacket (Class 3 recommended)

  • Steel toe boots with aggressive tread

  • Cut resistant gloves

  • Long pants and long sleeves

  • Hearing protection

  • Respirator if dust, pollen, or mold is significant

Equipment

  • Slope mower (tracked, flail, or remote controlled)

  • Standard tractor with side mount mower (for moderate slopes only)

  • Weed trimmers or brush cutters for edging

  • Traffic control devices

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

JSA Category: Parks and Grounds Maintenance

* 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 slope and terrain Unstable soil, holes, erosion channels, loose rocks, hidden debris Walk the site; identify hazards; mark obstacles; evaluate if slope exceeds equipment capability
Inspect mower and attachments Brake failure, blade damage, hydraulic leaks, faulty PTO Conduct full pre operation inspection; check blades, belts, guards, tracks or tires, and safety controls
Don required PPE Flying debris, noise, uneven terrain Wear hearing protection, safety glasses, gloves, steel toe boots, and high visibility vest
Establish work zone Traffic exposure, mower entering roadway Set up MUTCD compliant cones and signs; assign lookout; never mow with your back to traffic
Determine mowing direction Equipment rollover, operator entrapment Mow up and down slopes rather than across when possible; follow manufacturer slope limits; use remote operated mowers for steep slopes
Clear large debris from slope Slips, snake or insect hazards, sharp objects Remove debris manually before mowing; maintain secure footing; use gloves and long handled tools
Begin mowing operation Rollover, mower slide, flying objects Start mowing at top if safe; maintain slow steady speed; keep discharge pointed away from workers and public
Maintain safe distance from embankment edges Equipment falling into ditch or roadway Stay well back from drop offs; use equipment with slope sensors; have a spotter monitor distance from edges
Operate near obstacles (signs, culverts, guardrails) Equipment strike, operator injury Approach obstacles slowly; mow around manually if needed; avoid tight turns on slopes
Watch for soft or saturated soil Loss of traction, rollover Avoid wet areas; if soil softens, stop and back out slowly; do not attempt sharp turns
Use hand tools for finishing Contact with blades, slips, uneven footing Shut off mower first; use trimmers only when footing is stable; maintain safe spacing between workers
Monitor weather and visibility Reduced traction, poor footing, overheating Stop mowing during heavy rain or lightning; avoid working in low visibility or extreme heat
Shut down mower safely Burns, entanglement Disengage blades before stopping; allow engine to cool; park on level surface
Clean equipment Contact with hot blades, debris ejection Use tools to clear debris; avoid reaching near blades; let mower cool completely
Final site inspection Missed hazards, debris left in roadway Walk slope carefully; clear any remaining debris; ensure drainage structures are unobstructed
Remove traffic control Exposure to traffic Remove devices in reverse order; maintain lookout; keep PPE on until fully clear
Suggested Personal Protective Equipment

Equipment