|
AUTHOR(S):
|
Jeannette Nixon
Jeannette Nixon, Environmental & Inspections Services Ltd.
Calgary, AB, Canada
Andrea Jalbert
- andrea_jalbert@transcanada.com
TransCanada Pipelines
Calgary, AB, Canada
Karen Etherington
TransCanada Pipelines
Calgary, AB, Canada
Tim
Bossenberry
BOSS Environmental Consulting Ltd.
Calgary, AB, Canada
Doug Clark
Destiny Pipeline Consulting Ltd.
Calgary, AB, Canada
|
|
TransCanada PipeLine
Ventures Ltd. Partnership, on behalf of NOVA Chemicals Corporation,
constructed a 273.1 mm (10-inch) ethylene pipeline within an existing
multi-pipeline corridor between two petrochemical plants in the Joffre area, east of Red Deer, Alberta. The ethylene pipeline was constructed within a 10-m
(33-foot) wide area between two existing operating pipelines. The
pipeline crossed in and out of the corridor seven (7) times between
the two petrochemical plants. The objective of this paper will be
to discuss thresholds and related saturation indicators arising from
construction in a multi-pipeline corridor. The paper will evaluate
the project-related communication with the regulatory agency, owner
and contractor, the atypical planning required, and the specific use
of certain construction equipment, such as Low Ground Pressure (LGP)
dozers and backhoes to conserve topsoil, for safe construction of
this pipeline within this multi-pipeline corridor. Environmental and
safety concerns were met during construction by maintaining equivalent
land capability and preserving the integrity of the operating pipelines
within the corridor. The saturation point for the multi-pipeline corridor
was based on stakeholder, environmental, and constructability thresholds.
These thresholds may be useful in the assessment and planning of pipelines
within other multi-pipeline corridors.
Keywords: Threshold, constructability, environmental assessment,
management system, soils handling, stakeholder
Ref#: 3-2
|