Northeast Ohio AWWA October 26, 2017
Introduction Karl Dickinson Regional Sales Manager Jack Doheny Companies Sell & Rent Vacuum Trucks, Sewer Cleaning Equipment, & Pipeline Inspection Systems 16 Service Facilities Located throughout United States & Canada Largest Vacuum Truck Rental Fleet in North America Expansive Parts Inventory Training & Certification Services
Hydroexcavation Applications and Methods
Agenda What is Vaccum excavation and What Are The Applications What Are the Benefits of Vaccum excavation Why Do We Use Vacuum Excavation Questions and Equipment Walk Around
What is Vacuum Excavation and What Are The Applications
What Is Vacuum Excavation? Vacuum Excavation is the process of removing or moving soil with pressurized air or water. An air conveyance or vacuum is then used to transfer the soil or debris to a debris tank. This allows for a non-destructive and more accurate way to excavate soil and locate underground utilities.
What Can You Do With a Vacuum Excavation? Light Pole Installation Directional Drilling Mud Recovery Potholing/Daylighting Safe Excavation around Utilities Water Main Repair Pit Cleaning (Car Wash, Elevator, etc.) Electrical Fault Repair Fence Installation Telephone Pole Installation and Removal Anode Replacement Large Excavations Water Valve Exercising Water Valve Replacement Gas Line Repair/Shutoff Fire Hydrant Maintenance Excavation around Tree Roots Spill Cleanup Fiber Optic Repair Sand Filtration System Cleanout Vacuum Roof Rock Valve Box Cleanup Catch Basin Cleaning Portable Toilet Cleanup Recovery of Material Cleaning of Lateral Lines Lift Station Cleaning Culvert Cleanout Utilize as a Water Truck Natural Gas Extraction Cathodic Protection Service Cut-Off Connecting Service Tee or Lateral Pipeline Inspection Pressure Testing Slot Trenching Frozen Ground Excavation Telephone Line Repair Vault/Hole Digging Window Well Installation And More!
Daylight / Trenching
Exposing Buried Utilities Earlier excavation processes such as hand digging or augers often caused safety hazards, delays, and possibly service interruptions from damage. With vacuum excavation, pipes can be installed, existing lines can be repaired, and new lines of utilities can be installed with fewer safety and service issues.
Excavate in Hard to Reach Areas Easily Access to Remote Locations Minimal Disruptions Does Not Damage Surrounding Area
Excavate in Hard to Reach Areas
Excavate in Hard to Reach Areas
Excavate Around Tree Roots Fast and Efficient Mandated by some Cities Non-Destructive to Tree Roots
Prevent Cross Bores
Prevent Cross Bores
Utility Pole Install / Removal Not All Utility Poles are Clear Removing telephone poles without ensuring they are free of gas lines or other utilities can cause major damage or injury
Benefits of Vacuum Excavation
Benefits of Vacuum Excavation Jobsite Safety 100% Verification of Utility Non-Visual Utility Locating Methods are Often Inaccurate Much Faster than Manual Excavating Methods (Hand Digging) Versatile Equipment can be used for many Applications Easily Reach Hard to Reach Areas Reduces Landscape Reconstruction Reduces Risk with Non-Destructive Methods Reduces Job-Site Congestion Reduces Operator Fatigue
Benefits of Hydro Excavation Can Dig in Virtually All Soils Can Dig in Frozen and Hard Soils Water is a Lubricant Reduces Dusts Reduces Static Hazard Varied Water Pressure and Flow Can be used for Alternate Applications Highly Productive in Virtually all Soil Conditions
Benefits of Air Excavation Air is Limitless On-Demand Generation Non-Conductive Lighter Weight Unit Faster Excavation in Loose Soil Dry Spoils for Backfill Drought Proof No winterization
Why Do We Use Vacuum Excavation
Overview All states have adopted rules and regulations governing excavation All states have established Call Before You Dig produces which require advanced notification and marking prior to digging to mark any possible utilities lines preventing damage Regulations establish a tolerance zone in which only non-mechanical excavation methods can be utilized such as hand excavation All states have included vacuum excavation as a safe method of excavating with the tolerance zone
State of Ohio Law "Tolerance zone" means the site of the underground utility facility including the width of the underground utility facility plus eighteen inches on each side of the facility. "Nondestructive manner" means using low-impact, low-risk technologies such as hand tools, or hydro or air vacuum excavation equipment.
Reason for the Laws: Utility Strikes Over 19 million miles of buried utilities in the United States 323,962 known strikes in 2016! That s one every 2 minutes! 12% increase from 2015 Cable TV, 11% Natural Gas, 30% Electric, 8% Water, 1% Telecommuni cations, 50%
Dangers of Striking a Utility FIRE ERUPTS AFTER BACKHOE STRIKES GAS LINE IN WOODLAND HILLS, LOS ANGELES
Cost of Striking a Utility
What Causes The Damage
Shovel Damage Employing vacuum excavation versus hand tools would reduce almost 45,000 known damages a year over 100 damages a day
Why Does this Happen??? Notification Was Not Made Accounts for 25-35% of Strikes Made No notification made to one call center Can be easily avoidable All states have adopted 811 call center
Why Does This Happen??? Locating Practices Not Sufficient Accounts for 16-25% of Strikes Incorrect facility records/maps Utility marking or location not sufficient Utility was not located or marked
Why Does this Happen??? Excavation Practices Not Sufficient Accounts for 40-50% of Strikes Failure to maintain clearance Failure to support exposed utilities Failure to use soft dig where required Failure to test hole (pot-hole), Improper backfill practices
Questions and Equipment Walk Around
Equipment Walk Around Vactor Paradigm Park-n-Dig Simplicity of Operation No CDL Required Air and Water Excavation Tool Storage