User Manual

14 Utility AirSpade Technical Applications Bulletin
Pre-Excavation Checklist Before EVERY Excavation
IN THE OFFICE
o
Consult maps or field sketches of location.
o
Review all drawings, plans & engineering blueprints for existing
buried facilities.
o
Call 811 at least 2-3 business days before excavation (check state
One Call laws).
o
Schedule onsite meeting with critical facility operators (gas/oil
pipelines, high-voltage cables, fiber optics, etc.).
JOBSITE VISUAL INSPECTION
o
Complete pre-excavation walkthrough of the entire jobsite and
adjacent areas.
o
Identify & confirm all:
- Pavement markers (stamped nails, pavement decals, A-tags)
- Surface markers - Surface signage - Locate marks
o
Identify all services to buildings including:
- Gas meters - Cable pedestals - Telephone enclosures
- Farm taps - Electric cables
- Pipeline valves - Water valves
o
Look for cleared pipeline right of ways.
o
Look for evidence of trenching from previous excavations.
o
Talk with property owner or general contractor to identify potential
unmarked private facilities:
- Lighting - Irrigation lines - Communications lines
- Out-buildings - Sewer laterals
- Pools/Spas - Propane tanks
o
Mark proposed excavation areas in white paint and/or with flags.
JOBSITE DOCUMENTATION
o
Post the One Call Ticket number at the job site.
o
Compare actual job site observations to One Call Ticket:
- Proper scope of work
- Valid “Work to Begin” date
- Response from all utilities
- Facility marks within excavation area
o
Photograph at the jobsite:
- All marks and flags from 360°, at varying distances for perspective.
- Permanent signage and location relative to the dig area.
- Overhead lines with notation of location, height, and operator.
- All required safety signage.
o
Produce sketches and/or additional video where pertinent.
BEFORE YOU DIG
o
Review safety issues and information with all jobsite personnel.
o
Confirm excavation schedule with owner of pipelines impacted.
o
Note all locations for hand digging within the tolerance zones.
o
Be sure representatives for all critical facilities are present.
o
Have emergency equipment on-hand whenever hazardous atmospheres
are potentially present.
o
List all emergency contact numbers for assets in and adjacent to the
dig zone.
o
Ensure the location and route to the nearest hospital is known by
jobsite supervisor.
o
4
STANDARD PROCEDURES