Expansion and Maintenance Projects
Natural gas is universally recognized as the most environmentally friendly fossil fuel available.
Williams has provided reliable, economic natural gas transportation services to the U.S. for more
than 90 years and is committed to meeting the ever-growing energy needs. The availability of clean
and affordable energy is key to the success of promoting economic development while attracting and
retaining industries in any community.
Because of this, Williams is working to expand its pipeline systems across the United States.
Learn more about our current expansion and maintenance projects.
Northwest Pipeline
| Molalla Capacity Replacement Project |
| Project scope |
The Molalla Capacity Replacement project involves retiring in place
15 miles of 16-inch diameter pipeline between Williams’ Northwest Pipeline’s Oregon City compressor station and its
Molalla Meter Station and installing approximately 7.75 miles of new 20-inch diameter pipeline further south in order to
replace the capacity associated with the retired segment of pipeline. The new pipeline will be installed
adjacent to the existing 16-inch diameter pipeline starting at the existing valve site on the north side of Kropf Road
in Clackamas County and ending at the existing valve site on the south side of Marquam Road in Marion County. |
| Market |
This project will increase service reliability and benefit thousands of homes and businesses in Oregon. |
| FERC Filing |
January 2011 |
| Proposed In Service Date |
November 2011 |
| Construction Start |
Summer 2011 |
Click here to find out more about the Molalla Capacity Replacement project.
| North and South Seattle Delivery Laterals Expansion Projects |
| Project scope |
The North Seattle Delivery Lateral Expansion project and the
South Seattle Delivery Lateral Expansion project are actually two separate projects Williams is exploring. In order
to meet the growing demand for natural gas in the Seattle area, Northwest is evaluating options to expand and
upgrade one or both of its existing North and South Seattle Delivery Laterals. Williams anticipates the North
Seattle Delivery Lateral Expansion project would involve installing approximately 2.1 miles of 16- or 20-inch
diameter pipeline along the existing right of way, as well as upgrades to existing meter stations.
Williams is exploring three options for the South Seattle Delivery Lateral Expansion project. Option 1 is installing
4.5 miles of 16-inch diameter pipeline in a new right of way near Petrovisky Road. Option 2 is installing
approximately 3 miles of 16-inch pipeline along the existing right of way and rerouting the pipeline around
the Cedar River crossing and installing 1.8 miles of 16-inch pipeline in a new right of way. Option 3 is
installing approximately 3.5 miles of 16-inch diameter pipeline along the existing right of way.
|
| Market |
These infrastructure improvements to Northwest’s system will increase service reliability and benefit thousands of homes and businesses in the region. |
| FERC Filing for the North Seattle project |
April/May 2011 |
| Proposed In Service Date |
November 2012 |
| Construction Start |
July/August 2012 |
Click here to find out more about the North and South Seattle Delivery Laterals Expansion Projects.
| Pacific Connector |
| Miles of Pipe |
223 miles |
| Capacity |
1 million cubic feet/day |
| Market |
Pacific Northwest and California |
| FERC Filing |
September 2007 |
| Proposed In Service Date |
Fall 2011 |
| Construction Start |
2010 |
Click here to find out more about the Pacific Connector Gas Pipeline Project
Transco Pipeline
Northeast
| Northeast Connector |
| Miles of Pipe |
0 |
| Capacity |
100,000 dekatherms per day of natural gas |
| Market |
Northeast |
| Proposed In Service Date |
2013 |
| Construction Start |
2012 |
| Rockaway Delivery Lateral Project |
| Miles of Pipe |
3.23 miles |
| Capacity |
647,000 dekatherms per day of natural gas |
| Market |
Rockaways and New York City |
| Proposed In Service Date |
2013 |
| Construction Start |
2012 |
Click here to find out more about the Rockaway Delivery Lateral Project.
| Bayonne Delivery Lateral Project |
| Miles of Pipe |
6.24 miles |
| Capacity |
250,000 dekatherms per day of natural gas |
| Market |
Northeast |
| FERC Filing |
May 22, 2009 |
| Proposed In Service Date |
June 2011 |
| Northeast Supply Link |
| Miles of Pipe |
To be determined |
| Capacity |
250,000 dekatherms per day of natural gas |
| Market |
Northeast |
| Proposed In Service Date |
November 2013 |
| Construction Start |
Spring 2012 |
Click here to find out more about the Northeast Supply Link Project.
Mid Atlantic
| Mid-Atlantic Connector |
| Miles of Pipe |
3 miles |
| Capacity |
142,000 dekatherms per day of natural gas |
| Market |
Mid-Atlantic |
| FERC Filing |
Nov. 2010 |
| Proposed In Service Date |
November 2012 |
Click here to find out more about the Mid-Atlantic Connector Expansion Project.
Southeast
| Mid-South |
| Miles of Pipe |
22 miles |
| Capacity |
225,000 dekatherms per day of natural gas |
| Market |
Southeast |
| FERC Filing |
October 2010 |
| Construction Start |
Phase I: Sept. 2011
Phase II: June 2012
|
| Proposed In Service Date |
Phase I: Sept. 2012
Phase II: June 2013
|
Click here to find out more about the Mid-South Expansion Project.
| 85 North Expansion |
| Miles of Pipe |
22 miles |
| Capacity |
308,500 dekatherms per day of natural gas |
| Market |
Southeast |
| FERC Filing |
Jan. 30, 2009 |
| Construction Start |
Phase I: Fall 2009
Phase II: Summer 2010 |
| Proposed In Service Date |
Phase I: July 2010
Phase II: May 2011
|
Click here to find out more about the 85 North Expansion Project.
| Mobile Bay South II |
| Miles of Pipe |
0 miles |
| Compression Station Addition |
8,180 hp |
| Capacity |
380,000 dekatherms per day of natural gas |
| Market |
Southeast |
| FERC Filing |
November 16, 2009 |
| Proposed In Service Date |
May 2011 |
| Construction Start |
August 2010 |
Click here to find out more about the Mobile Bay South II Expansion Project.
| Pascagoula Expansion Project |
| Miles of Pipe |
15.5 miles |
| Capacity |
810 million cubic feet/day |
| Market |
Southeast |
| FERC Filing |
Summer 2009 |
| Construction Start |
Spring 2011 |
| Proposed In Service Date |
Fall 2011 |
Click here to find out more about the Pascagoula Expansion Project.