    <SEC-DOCUMENT>0001368519-21-000013-index.html : 20210428
    <SEC-HEADER>0001368519-21-000013.hdr.sgml : 20210428
    <ACCEPTANCE-DATETIME>20210428171003
    ACCESSION NUMBER:		0001368519-21-000013
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		4
    CONFORMED PERIOD OF REPORT:	20210331
    FILED AS OF DATE:		20210428
    DATE AS OF CHANGE:		20210428

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			North American Construction Group Ltd.
    		CENTRAL INDEX KEY:			0001368519
    		STANDARD INDUSTRIAL CLASSIFICATION:	OIL, GAS FIELD SERVICES, NBC [1389]
    		IRS NUMBER:				000000000
    		STATE OF INCORPORATION:			A0
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		6-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33161
    		FILM NUMBER:		21865367

    	BUSINESS ADDRESS:
    		STREET 1:		27287 100 AVENUE
    		CITY:			ACHESON
    		STATE:			A0
    		ZIP:			T7X 6H8
    		BUSINESS PHONE:		780-960-7171

    	MAIL ADDRESS:
    		STREET 1:		27287 100 AVENUE
    		CITY:			ACHESON
    		STATE:			A0
    		ZIP:			T7X 6H8

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	North American Energy Partners Inc.
    		DATE OF NAME CHANGE:	20061129

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	NORTH AMERICAN ENERGY PARTNERS INC.
    		DATE OF NAME CHANGE:	20061129

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	NACG Holdings Inc.
    		DATE OF NAME CHANGE:	20060707
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>6-K
    <SEQUENCE>1
    <FILENAME>noa-20210331.htm
    <DESCRIPTION>6-K
    <TEXT>
    Document 1 - file: noa-20210331.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>exhibit991-earningsrelease.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: exhibit991-earningsrelease.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>logoa011a.jpg
    <TEXT>
    Document 3 - file: logoa011a.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>nacg-2021xq1coverx31a.jpg
    <TEXT>
    Document 4 - file: nacg-2021xq1coverx31a.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>