10.3 Safety, Risk Management, and Site Liability

Safety as a Business and Professional Duty

The FS Business Concepts area includes safety and liability because survey work happens in real environments with real hazards: traffic, construction equipment, buried utilities, water, steep slopes, rail corridors, private property, and unstable ground. A technically correct measurement is not a successful project if it is obtained through unsafe practice. Safety planning begins before mobilization, the supervisor should understand site conditions, access permissions, personal protective equipment (PPE), traffic-control needs, utility information, weather exposure, communication methods, and emergency procedures.

Traffic Control and the MUTCD

Field crews working in or near roadways follow the Manual on Uniform Traffic Control Devices (MUTCD), published by the Federal Highway Administration (FHWA). Temporary traffic control uses approved signs, cones, channelizing devices, and high-visibility (ANSI Class 2 or 3) apparel. A typical temporary traffic-control zone has an advance-warning area, a transition (taper) area, an activity area, and a termination area. On the exam, the answer that establishes proper traffic control before occupying a travel lane is preferred over the answer that rushes the measurement.

Utilities, Excavation, and the 811 System

Before any digging, OSHA 29 CFR 1926.651(b) requires that the estimated location of underground utility installations, such as sewer, telephone, fuel, electric, and water lines, be determined prior to opening an excavation, and that utility owners be contacted to mark their lines. Nationally this is done by calling 811 ("Call Before You Dig") a few business days ahead so locators mark approximate utility positions. Surveyors setting deep monuments, digging for control, or coordinating with excavation contractors rely on this process.

Locators use a standard APWA color code so the marks are unambiguous:

OSHA's excavation standard (Subpart P) also requires a competent person to classify soil and select a protective system, sloping, benching, shoring, or shielding, for trenches that are generally 5 feet (1.5 m) deep or greater (protection is required at any depth if a competent person finds potential for cave-in). Within the marked tolerance zone around a utility, crews must hand-dig or vacuum-excavate (potholing) rather than use mechanized equipment.

Liability, Insurance, and Authority

Liability is broader than accidents. A firm may face claims from missed deadlines, incorrect deliverables, negligent measurements, inadequate supervision, poor documentation, or unauthorized certifications. Professional liability usually turns on whether the surveyor met the applicable standard of care, followed the contract, used competent staff, and documented decisions. Errors and omissions (E&O) insurance covers claims of negligence or professional error; general liability, workers' compensation, and auto coverage address other exposures.

But insurance only transfers risk financially, it does not excuse unsafe work or eliminate the duty to control hazards at the source.

Site liability also involves authority. A crew should not assume it can enter any property or control an active construction site without coordination through the client, owner, public agency, or other legal authority. If confronted, crew members stay professional, avoid escalation, contact the supervisor, and record the access issue in the field notes. The best safety answers are practical and conservative: identify the hazard, protect people first, communicate with responsible parties, document the issue, and resume only when controls are adequate.

Job Hazard Analysis and the Hierarchy of Controls

A practical safety tool is the job hazard analysis (JHA) or tailgate safety meeting performed before work begins. The crew walks the planned tasks, identifies hazards for each (traffic, utilities, terrain, weather, public interaction), and selects controls before mobilizing rather than reacting after an incident. OSHA frames control selection as a hierarchy of controls, ranked from most to least effective:

1. Elimination/substitution, remove the hazard, for example, survey from outside a travel lane or use remote methods so no one occupies the road.
2. Engineering controls, physical barriers, channelizing devices, and traffic-control setups that separate the crew from the hazard.
3. Administrative controls, work scheduling (avoiding peak traffic), training, the JHA itself, and stop-work authority.
4. Personal protective equipment (PPE), high-visibility apparel, hard hats, eye protection, and footwear, the last line of defense, not the first.

The exam-relevant point is that PPE alone is the weakest control; a high-visibility vest does not make an unprotected lane safe. The responsible plan engineers the hazard out or barriers it off first, then adds PPE.

Common Survey Field Hazards