0

Full Content is available to subscribers

Subscribe/Learn More  >

Permitting and Constructing a Large Pipeline Through a State-Regulated, Sensitive Wetland Resource: Alberta Clipper and the Gully 30 Calcareous Fen

[+] Author Affiliations
James Arndt

URS, Minneapolis, MN

Paul Turner

Enbridge Energy Company, Inc., Superior, WI

Scott Milburn

Midwest Natural Resources, Inc., Minneapolis, MN

Paper No. IPC2012-90622, pp. 327-338; 12 pages
doi:10.1115/IPC2012-90622
From:
  • 2012 9th International Pipeline Conference
  • Volume 1: Upstream Pipelines; Project Management; Design and Construction; Environment; Facilities Integrity Management; Operations and Maintenance; Pipeline Automation and Measurement
  • Calgary, Alberta, Canada, September 24–28, 2012
  • Conference Sponsors: International Petroleum Technology Institute, Pipeline Division
  • ISBN: 978-0-7918-4512-7
  • Copyright © 2012 by ASME

abstract

Pipeline crossings of sensitive, state or federally-regulated resources are occasionally unavoidable and can substantially increase project costs and negatively affect project timelines. During due-diligence surveys for invasive plants, field botanists identified an undocumented calcareous fen and associated state-listed wetland plants along the route of Enbridge’s LSr and Alberta Clipper pipelines in northwest Minnesota. Calcareous fens are rare peat-accumulating wetlands dominated by groundwater discharge, a high mineral content, and are protected by state law. Their hydrology and chemistry provide an environment for a suite of state-listed plants that are specifically adapted and unique to calcareous fens. By state statute, calcareous fens may not be filled, drained, or otherwise degraded by any activity unless the Commissioner of the Minnesota Department of Natural Resources (DNR) authorizes the activity under an approved Fen Management Plan. The proposed LSr and Alberta Clipper Pipeline route in the area was collocated with existing Enbridge pipelines installed before the fen was identified. State regulatory staff quickly officially recognized the Gully 30 Calcareous Fen which initiated a lengthy permitting process to authorize Enbridge to construct the LSr and Alberta Clipper Pipelines through the Gully 30 Calcareous Fen. Avoiding the fen would have involved an impracticable reroute along several miles of greenfield. The state (DNR) and federal (Army Corps of Engineers) process involved detailed characterization of the resource, development and approval of an alternatives analysis according to Section 404(b)(1) guidelines, and drafting and approval of a project-specific Fen Management Plan which stipulated specific construction mitigation procedures including winter construction and protective temporary drainage, and post construction monitoring requirements. This presentation introduces the calcareous fen resource and examines the permitting and iterative, comment-response construction-design process as an example of successful collaboration between state and federal agencies and Enbridge to construct a pipeline through a highly regulated, sensitive natural resource while maintaining schedule.

Copyright © 2012 by ASME
Topics: Pipelines

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In