Hazard Recognition and OSHA 10 for Survey and Drone Field Sites

Why Safety Training Comes First

Before you touch a total station, launch a drone, or set foot on a roadway right-of-way, you need a systematic way to find hazards and control them. The Occupational Safety and Health Administration (OSHA) 10-Hour Construction Industry outreach program gives you that foundation. The OSHA 10 card is recognized on job sites nationwide and signals to employers that you can identify, evaluate, and respond to construction-environment hazards—exactly the conditions surveyors and drone operators face every day.

OSHA's Framework: The General Duty Clause and Hierarchy of Controls

OSHA's General Duty Clause requires employers to provide a workplace free from recognized hazards that are causing or are likely to cause death or serious physical harm. Even when no specific OSHA standard covers a particular situation—such as a drone launch next to a highway—this clause still applies.

The hierarchy of controls tells you the order in which to attack a hazard:

1. Elimination – Remove the hazard entirely (e.g., reschedule a drone flight to avoid a storm).

2. Substitution – Replace the hazard with something less dangerous (e.g., use software to analyze aerial imagery instead of sending a person onto a steep slope).

3. Engineering controls – Redesign the work or workspace (e.g., use traffic control devices to reroute vehicles away from the survey crew).

4. Administrative controls – Change procedures, schedules, or behavior (e.g., mandatory buddy system, heat-illness prevention plan).

5. PPE – Personal protective equipment is the last line of defense, not the first.

Apply this hierarchy every time you complete a Job Hazard Analysis (JHA).

The Top Field Hazards for Surveyors and Drone Operators

Struck-By Hazards

Struck-by incidents are one of OSHA's "Fatal Four" in construction. For survey crews, moving vehicles on roadways pose the greatest struck-by risk. Controls include: high-visibility vests (ANSI/ISEA 107, Class 2 minimum for roadway work), traffic control plans, and positioning the crew to face oncoming traffic whenever possible. For drone operations, bystanders and crew can be struck by a malfunctioning or flyaway aircraft—maintain a minimum safety buffer around the flight area and enforce it with barriers or spotters.

Electrical Hazards

Drones flown near overhead power lines risk contact with energized conductors—a potentially fatal hazard. The FAA and utility industry both advise maintaining significant clearance from energized lines; always check utility maps before flight and establish a no-fly buffer. Survey crews using metal rods, range poles, or GPS pole antennae near overhead lines face the same risk. Never work directly under energized lines without an engineered plan. OSHA standards for electrical work require appropriate insulation, lockout/tagout where applicable, and awareness of approach distances.

Heat and Cold Stress

Field work is outdoor work. Heat stress (heat exhaustion, heat stroke) develops when the body cannot cool itself—risk increases with high temperature, high humidity, direct sun, and physical exertion. OSHA's heat illness prevention guidance calls for water, rest, and shade (the three W's). Acclimatize new workers gradually during the first one to two weeks of hot-weather field work. Cold stress (frostbite, hypothermia) is addressed with layered clothing, windbreaks, and work-warm cycles. Monitor crew members for warning signs and act immediately—call 911 for suspected heat stroke or hypothermia.

Traffic Hazards

Roadway right-of-way surveys place workers in or adjacent to live traffic lanes. A traffic control plan (TCP) must be in place before the crew arrives. At minimum: advance warning signs, channeling devices (cones, drums), a flagger if required, and high-visibility apparel for every crew member. Crews should always have an escape route—a place to step if a vehicle enters the work zone unexpectedly.

Rotating-Blade (Drone) Hazards

Multirotor drone propellers spin at high RPM and can cause serious lacerations. Controls include: never reaching toward a powered drone, keeping bystanders outside the flight perimeter, using blade guards during transport and pre-flight, and establishing a power-off-before-approach rule enforced by the remote pilot in command (RPIC). This is an application of lockout/tagout thinking: the energy source (battery) must be disconnected before anyone handles the aircraft.

Personal Protective Equipment (PPE) Selection and Inspection

PPE is only effective when it fits correctly and is in good condition. For a roadway survey scenario, required PPE typically includes:

• Hard hat – Check for cracks, dents, or a suspension system older than the manufacturer's recommended service life. Replace immediately if impacted.
• High-visibility vest – Inspect reflective tape for peeling or soiling; Class 2 minimum on roadways.
• Safety glasses – Check lenses for deep scratches that reduce optical clarity; confirm side shields are present where required.
• Gloves – Match glove type to the hazard (cut-resistant for brush clearing, insulating for electrical proximity).
• Steel-toed boots – Inspect for sole separation and upper damage; boots must meet ASTM F2413 standards.

Record every inspection item on the JHA form before beginning work. A deficiency found in the field must be corrected before the task begins—not after.

The Job Hazard Analysis (JHA)

A JHA breaks a task into sequential steps, identifies hazards at each step, and documents controls. A complete JHA entry has three columns: task step | potential hazard | control measure. Completing a JHA before every non-routine field task is a professional habit that protects crews and satisfies OSHA documentation expectations. On your group exercise, use the hierarchy of controls to fill in the control column—PPE alone is never a complete answer.

Earning Your OSHA 10 Card

The OSHA 10-Hour Construction outreach program must be delivered by an OSHA-authorized trainer. You will complete all required modules and pass every knowledge check at 70% or higher. Upon completion, the authorized trainer submits your information for an OSHA 10 completion card. This card belongs to you permanently—carry it when you enter job sites that require it.