    <SEC-DOCUMENT>0001140361-22-015315-index.html : 20220421
    <SEC-HEADER>0001140361-22-015315.hdr.sgml : 20220421
    <ACCEPTANCE-DATETIME>20220421110645
    ACCESSION NUMBER:		0001140361-22-015315
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20220421
    DATE AS OF CHANGE:		20220421

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			FOSTER L B CO
    		CENTRAL INDEX KEY:			0000352825
    		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-METALS SERVICE CENTERS & OFFICES [5051]
    		IRS NUMBER:				251324733
    		STATE OF INCORPORATION:			PA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-10436
    		FILM NUMBER:		22840219

    	BUSINESS ADDRESS:
    		STREET 1:		415 HOLIDAY DR
    		CITY:			PITTSBURGH
    		STATE:			PA
    		ZIP:			15220
    		BUSINESS PHONE:		4129283431

    	MAIL ADDRESS:
    		STREET 1:		415 HOLIDAY DR
    		CITY:			PITTSBURGH
    		STATE:			PA
    		ZIP:			15220
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>ny20001918x4_defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: ny20001918x4_defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>ny20001918x4_nc01.jpg
    <TEXT>
    Document 2 - file: ny20001918x4_nc01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>ny20001918x4_nc02.jpg
    <TEXT>
    Document 3 - file: ny20001918x4_nc02.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>