<SEC-DOCUMENT>0000950170-24-125472-index.html : 20241112
<SEC-HEADER>0000950170-24-125472.hdr.sgml : 20241112
<ACCEPTANCE-DATETIME>20241112162013
ACCESSION NUMBER:		0000950170-24-125472
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20241107
ITEM INFORMATION:		Amendments to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics
FILED AS OF DATE:		20241112
DATE AS OF CHANGE:		20241112

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Great Lakes Dredge & Dock CORP
		CENTRAL INDEX KEY:			0001372020
		STANDARD INDUSTRIAL CLASSIFICATION:	HEAVY CONSTRUCTION OTHER THAN BUILDING CONST - CONTRACTORS [1600]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		IRS NUMBER:				205336063
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33225
		FILM NUMBER:		241448558

	BUSINESS ADDRESS:	
		STREET 1:		9811 KATY FREEWAY
		STREET 2:		SUITE 1200
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024
		BUSINESS PHONE:		(346) 359-1010

	MAIL ADDRESS:	
		STREET 1:		9811 KATY FREEWAY
		STREET 2:		SUITE 1200
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Great Lakes Dredge & Dock Holdings Corp.
		DATE OF NAME CHANGE:	20060808
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>gldd-20241107.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: gldd-20241107.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>img153280975_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: img153280975_0.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>gldd-20241107.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT
<TEXT>
Document 3 - file: gldd-20241107.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>5
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 5 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>6
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 6 - file: Financial_Report.xlsx

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>7
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 7 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 8 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>10
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 10 - file: FilingSummary.html

Document 10 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>12
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 12 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>13
<FILENAME>0000950170-24-125472-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 13 - file: 0000950170-24-125472-xbrl.zip

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<FILENAME>gldd-20241107_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 14 - file: gldd-20241107_htm.html

Document 14 - RAW XML: gldd-20241107_htm.xml

</DOCUMENT>
</SEC-DOCUMENT>