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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 CGAfQd0tEQs2eXOodqJs1lbVRME3kMs0hmngSlbc1Ewr9Z+aU9sqFNaS4Cc3FfFA
 p3Lk8vgOW58MzkmxL+XtKw==

<SEC-DOCUMENT>9999999995-07-002994.txt : 20070727
<SEC-HEADER>9999999995-07-002994.hdr.sgml : 20070727
<ACCEPTANCE-DATETIME>20070727001525
ACCESSION NUMBER:		9999999995-07-002994
CONFORMED SUBMISSION TYPE:	EFFECT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20070726
DATE AS OF CHANGE:		20070727
EFFECTIVENESS DATE:		20070726

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NORTHWEST PIPELINE CORP
		CENTRAL INDEX KEY:			0000110019
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION [4922]
		IRS NUMBER:				870269236
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-144332
		FILM NUMBER:		071004632

	BUSINESS ADDRESS:	
		STREET 1:		295 CHIPETA WAY
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84158-0900
		BUSINESS PHONE:		8015838800

	MAIL ADDRESS:	
		STREET 1:		295 CHIPETA WAY
		CITY:			SALT LAKE
		STATE:			UT
		ZIP:			84158
</SEC-HEADER>
<DOCUMENT>
<TYPE>EFFECT
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0101</schemaVersion>

    <submissionType>EFFECT</submissionType>

    <act>33</act>

    <testOrLive>LIVE</testOrLive>

    <effectiveData>
        <finalEffectivenessDispDate>2007-07-26</finalEffectivenessDispDate>
        <finalEffectivenessDispTime>09:00:00</finalEffectivenessDispTime>
        <form>S-4</form>
        <filer>
            <cik>0000110019</cik>
            <entityName>NORTHWEST PIPELINE CORP</entityName>
            <fileNumber>333-144332</fileNumber>
        </filer>
    </effectiveData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----