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Excavator’s Perspective

Excavator’s Perspective

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Excavator’s Perspective

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  1. Excavator’sPerspective Construction and Safety National Utility Contractors Association of Iowa

  2. AGENDA • NUCA of Iowa • Excavation Best Practices • Pre-Excavation • During Excavation • Safety • Concerns & Recommendations

  3. NUCA of Iowa is an association of utility contractors that represent over 80% of the Iowa underground infrastructure construction, maintenance and repair in sanitary sewer, storm sewer and water main areas.

  4. NUCA of Iowa Contractors • Mostly Family Owner & Operated • Reinvestment in Iowa and Workforce • Special Focus on Safety & Training • Impact • Employment > 2,500 Iowa Families • Wages > $ 150,000,000 • Revenue > $ 300,000,000 • Collectively in top 25 of Iowa employers

  5. NUCA of Iowa Contractors We Work in the Dirt… What You Can’t See Will Bite..

  6. Pre-Excavation • Pre-planning / maps • Contractors utilize design and planning work from civil engineering firms • Accurate pre-planning is based upon design locates requests • Design Locates not Always Performed. • Pre-Bid Meetings provides opportunity for contractors to identify issues • Traditionally, Utility Companies are not part of the pre bid meeting • Gas Utility Maps provide an overview for construction planning • Help differentiateexisting and newly relocated lines

  7. Pre-Excavation Pre-planning / maps

  8. Pre-Excavation Pre-planning / maps

  9. Pre-Excavation • Calling Locates as early as possible • Requesting locates before pre-construction meeting • Helps identify utility concerns • Pre-identify utility conflicts within the job • Used to identify utility depth parameters • Merging of constructions plans with existing utility locations • Potholing by Hydro-Excavation

  10. Pre-Excavation • Planning &Signage Placed on Jobs • Pre Construction Planning • Identifies possible safety concerns • Efficient use of labor / materials / machinery • Place Construction Survey Stakes • Catch 22 • White Lining • Depending upon scope of project • Easily identifiable

  11. During Excavation • Potholing – Hydro-excavation • Identify Critical Areas • Expose Located Utility Lines • More Efficient then Hand Digging

  12. During Excavation • Hand Dig / Probe • Identify Critical Areas • Expose Located Utility Lines

  13. During Excavation • Marking Utility Lines • Caution Tape • High Visibility Paint

  14. During Excavation • Support Utility Lines • Operator Efficiency • Allows Excavation

  15. During Excavation • Utility Self Locates • Identify Critical Areas • Uncover Hidden Utility Lines • Build Relationship w/ Locator • Benefits • Enhanced Communications • Concerns • Removes Operator

  16. Safety Practices • Providing A Stand By • When a High Pressure Gas Line is in Close Proximity • A Scenario With Multiple Utilities Nearby

  17. Safety Practices • Crew Enhanced Meetings • Cautions Regarding Nearby Gas Lines • Feedback from Crew • Communicate Specifics • Subs, Vendors, Etc • Not Everything Goes as Planned • Pre-determined Strategies Regarding What-if

  18. Excavator Concerns • Locates Performed After Joint Meet • Improved Communication of Locate Time Frame • Mapping Not Always Accurate • Assigned Locators Contacts Details Not Shared • Utility Lines Installed or Imbedded in Concrete • Projects with Multiple Utilities Companies and/or Municipalities • Enhanced Communications Among Parties

  19. Recommendations • Ownership by Engineer • Utility Involvement Prior to Bidding • Gas Line Specifics at Design / Bidding Stage • Utility Depth Standards Adhered • Standardized Mapping – All Entities / Municipalities • Changes to Iowa One Call Locate Policies • Design Locates Essential to Pre-excavation Planning • Locate Abandon Lines • Marking System for Multiple Levels

  20. Any Questions