<SEC-DOCUMENT>0000950170-25-003457-index.html : 20250108
<SEC-HEADER>0000950170-25-003457.hdr.sgml : 20250108
<ACCEPTANCE-DATETIME>20250108163014
ACCESSION NUMBER:		0000950170-25-003457
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20250105
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
FILED AS OF DATE:		20250108
DATE AS OF CHANGE:		20250108

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:		25518882

	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-20250105.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: gldd-20250105.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>gldd-ex99_1.htm <DESCRIPTION>EX-99.1 <TEXT> Document 2 - file: gldd-ex99_1.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>img133732384_0.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: img133732384_0.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>img154174703_0.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: img154174703_0.jpg
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>5 <FILENAME>gldd-20250105.xsd <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT <TEXT> Document 5 - file: gldd-20250105.xsd
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>7 <FILENAME>R1.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 7 - file: R1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EXCEL <SEQUENCE>8 <FILENAME>Financial_Report.xlsx <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 8 - file: Financial_Report.xlsx
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>9 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 9 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>10 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 10 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>12 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 12 - file: FilingSummary.html
Document 12 - RAW XML: FilingSummary.xml
</DOCUMENT> <DOCUMENT> <TYPE>JSON <SEQUENCE>14 <FILENAME>MetaLinks.json <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 14 - file: MetaLinks.json
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>15 <FILENAME>0000950170-25-003457-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 15 - file: 0000950170-25-003457-xbrl.zip
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>16 <FILENAME>gldd-20250105_htm.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 16 - file: gldd-20250105_htm.html
Document 16 - RAW XML: gldd-20250105_htm.xml
</DOCUMENT> </SEC-DOCUMENT>