North Seattle Lateral Upgrade Project

From the ProvenHand pipeline wiki

Sources disagree on some of this page's facts. Each value is shown with its sources; see Sources disagree.

North Seattle Lateral Upgrade Project is a natural gas pipeline in Washington, operated by Northwest Pipeline LLC. It entered service in 2019.

North Seattle Lateral Upgrade Project
General information
KindPipeline project[1]
Project typeExpansion[1] or Lateral[2][sources disagree]
StatusIn service[1]
CommodityNatural gas[1]
Operator
Owner and operator
StateWashington[1]
CountiesKing, Snohomish[3]
In service14 November 2019[1]
FERC docketCP17-441[1]
Contractors
Technical information
Length7 mi[1] or 5.8 mi[3][sources disagree]
Pipe size8 in[1] or 20 in[3][sources disagree]
Capacity159.299 MMcf/d additional capacity (EIA)[1]
Cost$47 million (EIA estimate; no dollar year given)[1]
On ProvenHand
Hands listed0

North Seattle Lateral Upgrade Project is a natural gas pipeline in Washington, operated by Northwest Pipeline LLC. It entered service in 2019.

Contractorsedit

ContractorWorkScopeYears
U.S. Pipeline, Inc.[4]PrimeRemoval of 5.85 miles of 8-inch and installation of 5.85 miles of 20-inch pipeline1 January 2018

Sources disagree

These sources give different values for the same fact. Each value is listed with the sources that give it.

FactValues given
Project type
Diameters
Length

Crew on ProvenHand

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Referencesedit

  1. “U.S. natural gas pipeline projects (Natural Gas Pipeline Projects)”. U.S. Energy Information Administration. Retrieved 3 October 2026.
  2. “FERC eLibrary docket CP17-441”. Federal Energy Regulatory Commission. 11 May 2017. Retrieved 3 October 2026.
  3. “North Seattle Lateral Upgrade, Pipeline Safety Committee presentation (Northwest Pipeline)”. Northwest Pipeline LLC (Williams), via Washington Utilities and Transportation Commission. 15 November 2018. Retrieved 4 October 2026.
  4. “Recent Projects - U.S. Pipeline (project map)”. U.S. Pipeline, Inc. Retrieved 3 October 2026.

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