Common Ground Best Practice Implementation

1
Common GroundBest Practice Implementation

• Missouri
• State-Wide
• Standardized
• Marking
• Procedures

2
The CGA Best Practice Implementation Introduction

• Standardize Markings
• Look at the Best Practice
• Gaining Support
• Formulate Standards
• Process Timeline

3
The CGA Best Practice Need for Standard Markings

• Scope of work expanding
• Operator area often lacks clear definition
• Universally identified facilities
• Expansion of educational opportunities
• Awareness raised through global use
• Proper identification will reduce damages

4
The CGA Best Practice Approach to Standard
Markings

• Two Tiered Practice
• Excavator
• Defining the Area of Excavation
• Facility Locator
• Effectively Identifying Buried Facilities

Excerpts taken from the CGA Best Practices
Handbook version 3.0 - Appendix B - 9/24/04
5
The CGA Best PracticeExcavator Marks - White Line

• Marks 12-18 long, 1 wide and 4-50 apart
• Outline or dot the extent of excavation
• Identify corners with solid angles

CGA Best Practices Handbook version 3.0 -
Appendix B Page 78
6
The CGA Best PracticeExcavator Marks - White
Stake

• White stake at center of excavation
• Indicate name of excavator and radius

CGA Best Practices Handbook version 3.0 -
Appendix B Page 78
7
The CGA Best PracticeExcavator Marks - White Line

• Marks 12-18 long, 1 wide and 4-50 apart
• Line the path of the bore
• Arrow extent of any trench

CGA Best Practices Handbook version 3.0 -
Appendix B Page 79
8
The CGA Best PracticeExcavator Marks - White
Stake

• White stake at each extent of excavation
• Indicate name of excavator and distance

CGA Best Practices Handbook version 3.0 -
Appendix B Page 79
9
Best Practice MO Addendum Excavator Marks -
Identification

• Indicate name of Excavator
• Indicate corridor width along path of excavation

ABC Const.
10 CDR
10
The CGA Best PracticeLocator Marks - Markings

• APWA color codes utilized
• Marks 12-18 long, 1 wide and 4-50 apart
• As can be reasonably seen based on terrain

CGA Best Practices Handbook version 3.0 -
Appendix B Page 80
11
The CGA Best PracticeLocator Marks - Single
Facility

• Single toned facility indicating width
• Company name at ends of all locates or where
  crossing similar colored facilities or as can be
  reasonably seen based on the terrain

CGA Best Practices Handbook version 3.0 -
Appendix B Page 80
12
The CGA Best PracticeLocator Marks -
Multi-Facility

• Single tone for multiple facilities where
  separation does not allow for separate tone for
  each facility
• Indicate centerline with size and number of
  facilities

CGA Best Practices Handbook version 3.0 -
Appendix B Page 80
13
Best Practice Mo Addendum Locator Marks -
Conduit / Oversize Facility

• Outside edges of the duct are marked
• Diamond in the center
• Number and size of facilities indicated

CGA Best Practices Handbook version 3.0 -
Appendix B Page 81
14
The CGA Best PracticeLocator Marks - Corridor
Mark

• Multiple facilities of same type in trench
• Number may be unknown
• Mark the center and width of the corridor

CGA Best Practices Handbook version 3.0 -
Appendix B Page 81
15
The CGA Best PracticeLocator Marks - Bends

• Indicate arc with solid marks

CGA Best Practices Handbook version 3.0 -
Appendix B Page 81
16
The CGA Best PracticeLocator Marks - Laterals

• Indicate with a T and arrow
• Indicate change in size and provide company name

CGA Best Practices Handbook version 3.0 -
Appendix B Page 82
17
The CGA Best PracticeLocator Marks - Offset Mark

• Indicate company name and facility size
• Arrow distance to the center of facility

CGA Best Practices Handbook version 3.0 -
Appendix B Page 82
18
The CGA Best PracticeLocator Marks - Offset Stake

• Indicate company name and facility size
• Arrow distance to the center of facility

CGA Best Practices Handbook version 3.0 -
Appendix B Page 82
19
The CGA Best PracticeLocator Marks - Vaults

• Mark extent of structure
• Arrows point to visible access
• Provide company name

CGA Best Practices Handbook version 3.0 -
Appendix B Page 83
20
The CGA Best PracticeLocator Marks - Terminations

• Indicated as capped or Td
• Provide company name
• DE is abbreviation for Dead End

CGA Best Practices Handbook version 3.0 -
Appendix B Page 83
21
Best Practice MO AddendumLocator Marks - No
Conflict

• One of the following
• Utility name followed by NO FACILITIES or
  CLEAR
• Clear flag with utility and request number
• Phone, fax or e-mail notification

LGC CLEAR SBC CLEAR ABC NO FACILITIES
CGA Best Practices Handbook version 3.0 -
Appendix B Page 84 Missouri statute requires
the use of the words NO FACILITIES or CLEAR
22
Best Practice MO AddendumAppurtenance or Splice

• Valves or other appurtenances to be indicated on
  site or by phone contact
• Cable splice indicator

23
Best Practice MO Addendum Locator Marks -
Continuation

• Use arrows to indicate continuation of facility
  beyond locate area

LGC 12
LGC 12
24
The CGA Best PracticeLocator Marks -
Abbreviations

• Facility Identifiers

CGA Best Practices Handbook version 3.0 -
Appendix B Page 84
25
The CGA Best PracticeLocator Marks -
Abbreviations

• Underground Construction Descriptions

CGA Best Practices Handbook version 3.0 -
Appendix B Page 84
26
The CGA Best PracticeLocator Marks -
Abbreviations

• Infrastructure Material

CGA Best Practices Handbook version 3.0 -
Appendix B Page 84
27
Best Practice MO AddendumMinimum Marking
Standards

• White Lining
• Extent outlined or staked
• Excavator Name
• Corridor Width
• Locator Markings
• Size and frequency of markings
• APWA color coding
• Utility or operator name
• Use of standardized marking symbols

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The CGA Best PracticeState-Wide Standards Process

• Conference to be held September 26th
• Centrally located in Columbia
• Best Western Columbia Inn
• 3100 I-70 Drive SE
• Columbia, Mo. 65201
• MOCS will assist in notifying utilities
• Encourage support and participation
• Understand the purpose
• Increase and improve communication
• Improved awareness / education opportunities
• Damage prevention
• Seamless identification

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The CGA Best PracticeMissouri Process Timeline

• Late July
• Initial utility contact for participationv
• August
• One call mailing and RSVP for conferencev
• September
• Conference to define markingsv
• Implementation timeline set
• October / November
• Best practice publication material for excavator
  manual

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The CGA Best PracticeComments or Concerns

• For more information
• www.commongroundalliance.com
• Open floor
• Please forward questions or concerns to
• Bill Dexheimer
• Field Manager
• Missouri One Call System, Inc.
• 728 Heisinger Road
• Jefferson City, MO 65109-4711
• Phone [phone]
• E-mail bdex_at_socket.net