Find us on...

FacebookLinkedIn

Project Examples

West Oakland

Consumers Energy

Bluewater Pipeline Extension and Meter Station Upgrade 

Bluewater Pipeline

2010 Remediation Project

Consumers Energy

Internal Inspection Assistance - Midwest

TransCanada

Automation Upgrade

TransCanada

Rockies Express Pipeline (REX) Project

Kinder Morgan

Fall Hazard Remediation Project

TransCanada

Enbridge Energy

Emergency Oil Spill Cleanup

Princeton Lateral

Northern Border Pipeline Company

Ground Disturbance Scans

Enbridge Energy

Throughout 2011, Holland Engineering (HEI) has been providing ground disturbance scans to Enbridge at numerous locations throughout Illinois, Wisconsin and Minnesota. Initially, a majority of these services were provided for Line 6B, the same 30” crude oil pipeline in Marshall, MI which suffered an oil leak earlier this year. HEI was able to complete a list of several hundred digs by providing scanning, staking, surveying and drafting services. 



At the clean-up sites, the process involved assessing the area that was previously excavated and disturbed, staking the “scar” to show the contractor what needed to be cleaned, staking the access road into the site and locating and flagging the existing pipelines within the disturbed area. HEI also scanned, as an extra safety precaution; the entire staked area to find any foreign utilities that may have been missed by the one call.   Using GPS, our survey crews were able to survey the staked area and send the data to drafting where a map was created showing the workspace and utilities for contractor use.   



In addition to the clean-up site, Holland Engineering also provided ground disturbance scans for new dig site locations. Enbridge supplied HEI with “dig sheets” for each location which allowed HEI to stake the anomaly location by coordinates using GPS. Although the overall process was very similar to the clean-up site, it did require more staking and probing.  Our survey crews performed these throughout a variety of different terrains including fields, wooded and residential areas and swamps.

Energy

Sign Up for Our Newsletter