Contractor Utility Coordination WisDOT Projects February 18 th, 2016
2/18/2016 Contractor Utility Coordination Safety Diggers Hotline Notification Damage Prevention Removal of Old Utilities Utility Permit Usage Drawing/Mapping Coordination with Design Availability for Review Project Inefficiencies Build from bottom up Communication Schedule New Installation As-Builds Electronic Documentation 3 Dimensional verses 2 Dimensional Trans 220 Pre-Project Coordination Contractual Tie
2/18/2016 Contractor Utility Coordination Safety Diggers Hotline Notification When does a new utility get submitted to Diggers Hotline Program How accurate is information supplies by Utility Company Are tracer wires required to be installed in all new conduit Does WDOT have any control how private utilities are installed Damage Prevention Being able to use Diggers protocol early on new installs Potholing / physical locates Installs being placed out of construction work zones Removal of old utilities Old gas pipes are a problem Removing wire as abandoned - indicating dead
2/18/2016 Contractor Utility Coordination Physical Locate / Potholing
2/18/2016 Contractor Utility Coordination Zoo Interchange Marked Gas Line 9 Feet Off
2/18/2016 Contractor Utility Coordination Utility Permit Usage Drawing/Mapping Coordination with Design Conflict mapping out new utility location with Project design Placement of new utility with new structure excavation plans Additional Room Needed for Trenches / Manholes Availability for Review Contractor to verify Permit drawings match Project drawings Review Permit drawings prior to utility relocation
2/18/2016 Structure Excavation Cross section: Existing ground 10’ Protective Sheeting No Conflict Direct Conflict Conflict Resolved
2/18/2016 Contractor Utility Coordination
2/18/2016 Contractor Utility Coordination
2/18/2016 Contractor Utility Coordination Project Inefficiencies Build from bottom up Looking at all aspects for relocation elevations Deep storm/sanitary first Communication Contractor / WDOT coordination Contractor / Utility Company coordination Weekly coordination meetings with all Schedule Looking at all aspects for relocation timing Cooperation with Utility Company Contractor
2/18/2016
Contractor Utility Coordination New Installation As-Built Electronic Documentation Use of GPS location / elevation documentation Elevation recorded based on sea level elevation Not recorded based on elevation below existing grade 3 Dimensional verses 2 Dimensional Communication When does a new utility get submitted to Diggers Hotline Program Contractor location marking prior to Diggers Hotline Weekly coordination meetings
2/18/2016 Considerations For Future o Implement New Technology to Assist In Utility Relocations Information will Save Time in Design Improve Bidder Confidence / Reduce Risk Improve Worker and Public Safety Reduce Project Delays and Associated Issues It is the right thing to do !!! (Why Shouldn’t Wisconsin be a Leader ?) Safety Cost Public Protection / Perception o Recent Cost / Benefit Studies / SUE Excavation University of Purdue Savings of $4.62 / $1.00 Spent (71 Projects Studied) Ave Savings = 1.9% of Total Project Ave Cost = 0.5 % of Total Project University of Toronto Savings of $4.32 / $1.00 Spent (9 Projects Studied) Ave Cost = 0.2 % – 3.5% of Total Project
2/18/2016 Contractor Utility Coordination Trans 220 Pre-Project Coordination Utility relocation prior to job award Duration of relocation Utility Notification Contractual Tie Contractor tie with Utility