<SEC-DOCUMENT>0000950170-25-067241-index.html : 20250508
<SEC-HEADER>0000950170-25-067241.hdr.sgml : 20250508
<ACCEPTANCE-DATETIME>20250508172922
ACCESSION NUMBER:		0000950170-25-067241
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20250508
DATE AS OF CHANGE:		20250508
EFFECTIVENESS DATE:		20250508

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
		EIN:				205336063
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-287107
		FILM NUMBER:		25927544

	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>S-8
<SEQUENCE>1
<FILENAME>may_2025_s-8_2021_ltip_a.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: may_2025_s-8_2021_ltip_a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>gldd-ex5_1.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: gldd-ex5_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>3
<FILENAME>gldd-ex23_2.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 3 - file: gldd-ex23_2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-FILING FEES
<SEQUENCE>4
<FILENAME>gldd-exfiling_fees.htm
<DESCRIPTION>EX-FILING FEES
<TEXT>
Document 4 - file: gldd-exfiling_fees.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>img71476575_0.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: img71476575_0.jpg

</DOCUMENT>
</SEC-DOCUMENT>