G-II: Expansion and Extension
From the ProvenHand pipeline wiki
G-II: Expansion and Extension is a natural gas pipeline expansion in Illinois and Wisconsin, operated by Guardian Pipeline, L.L.C.. Construction began in 2008 and the line entered service in 2009.
| G-II: Expansion and Extension | |
|---|---|
| Also called | Guardian Pipeline Expansion and Extension Project[1] |
| General information | |
| Kind | Pipeline project[1] |
| Project type | Expansion[2][3] |
| Status | In service[2] |
| Commodity | Natural gas[2] |
| Owner and operator | |
| Facility projects | |
| States | Illinois, Wisconsin[1][2] |
| Counties | Illinois: DeKalb Wisconsin: Brown, Calumet, Dodge, Fond du Lac, Jefferson, Outagamie[4] |
| Approved | 14 December 2007[1] |
| Construction started | April 2008[5] |
| In service | 25 February 2009[2] |
| FERC docket | CP07-8[1] |
| FERC pre-filing docket | PF06-21[1] |
| Technical information | |
| Length | 119.2 mi[1] or 119 mi[2][sources disagree] |
| Pipe size | 20 in, 42 in[2] or 12 in, 16 in, 20 in, 30 in[5][sources disagree] |
| Capacity | 537.2 MMcf/d (FERC project list)[1][2] |
| Cost | $350 million (EIA estimate; no dollar year given)[2] or $260 million, excluding AFUDC[6][sources disagree] |
| On ProvenHand | |
| Hands listed | 0 |
G-II: Expansion and Extension is a natural gas pipeline expansion in Illinois and Wisconsin, operated by Guardian Pipeline, L.L.C.. Construction began in 2008 and the line entered service in 2009.
Inspection
| Firm | Scope | Years |
|---|---|---|
| Key Agricultural Services, Inc.[7] | Post-construction agricultural restoration monitoring (field inspections of restored tracts) | 1 September 2011 |
Spreads
Sources disagree
These sources give different values for the same fact. Each value is listed with the sources that give it.
| Fact | Values given |
|---|---|
| Cost | |
| Diameters | |
| Length |
Crew on ProvenHand
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Referencesedit
- “FERC: Approved Major Pipeline Projects (1997-Present)”. Federal Energy Regulatory Commission. Archived from the original on 1 July 2025. Retrieved 3 October 2026.
- “U.S. natural gas pipeline projects (Natural Gas Pipeline Projects)”. U.S. Energy Information Administration. Retrieved 3 October 2026.
- “FERC eLibrary docket CP07-8”. Federal Energy Regulatory Commission. 13 October 2006. Retrieved 3 October 2026.
- “Order Issuing Certificate, Guardian Pipeline, L.L.C. (CP07-8)”. Federal Energy Regulatory Commission. 14 December 2007. Retrieved 4 October 2026.
- “Weekly Construction Progress Report, April 19-25, 2008, G-II Expansion Project (CP07-8)”. Guardian Pipeline, L.L.C. (filed with FERC). 29 April 2008. Retrieved 4 October 2026.
- “ONEOK Partners Accepts FERC Certificate for Guardian Pipeline Expansion and Extension Project”. ONEOK Partners, L.P. 3 January 2008. Retrieved 4 October 2026.
- “2011 Post-Construction Restoration report, G-II Project (CP07-8)”. Guardian Pipeline, L.L.C. (filed with FERC). 14 November 2011. Retrieved 4 October 2026.
- “Initial Implementation Plan, G-II Project (CP07-8)”. Guardian Pipeline, L.L.C. (filed with FERC). 14 February 2008. Retrieved 4 October 2026.
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