    <SEC-DOCUMENT>0001140361-23-018407-index.html : 20230414
    <SEC-HEADER>0001140361-23-018407.hdr.sgml : 20230414
    <ACCEPTANCE-DATETIME>20230414090053
    ACCESSION NUMBER:		0001140361-23-018407
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		17
    CONFORMED PERIOD OF REPORT:	20230525
    FILED AS OF DATE:		20230414
    DATE AS OF CHANGE:		20230414

    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:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-10436
    		FILM NUMBER:		23819895

    	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>
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    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>ny20006520x1_def14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: ny20006520x1_def14a.htm

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    <FILENAME>logo_lbfoster.jpg
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    Document 2 - file: logo_lbfoster.jpg

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    <FILENAME>ny20006520x1_bthompson.jpg
    <TEXT>
    Document 3 - file: ny20006520x1_bthompson.jpg

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    <FILENAME>ny20006520x1_djunge.jpg
    <TEXT>
    Document 4 - file: ny20006520x1_djunge.jpg

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    <FILENAME>ny20006520x1_dowen.jpg
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    Document 5 - file: ny20006520x1_dowen.jpg

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    <FILENAME>ny20006520x1_jkasel.jpg
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    Document 6 - file: ny20006520x1_jkasel.jpg

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    <FILENAME>ny20006520x1_jkunz.jpg
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    Document 7 - file: ny20006520x1_jkunz.jpg

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    <FILENAME>ny20006520x1_jlee.jpg
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    Document 8 - file: ny20006520x1_jlee.jpg

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    <FILENAME>ny20006520x1_pc01.jpg
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    Document 9 - file: ny20006520x1_pc01.jpg

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    <FILENAME>ny20006520x1_pc02.jpg
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    Document 10 - file: ny20006520x1_pc02.jpg

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    <FILENAME>ny20006520x1_piechart01x1.jpg
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    Document 11 - file: ny20006520x1_piechart01x1.jpg

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    <FILENAME>ny20006520x1_piechart02x1.jpg
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    Document 12 - file: ny20006520x1_piechart02x1.jpg

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    <FILENAME>ny20006520x1_pvpcharts0x1.jpg
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    Document 13 - file: ny20006520x1_pvpcharts0x1.jpg

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    <FILENAME>ny20006520x1_pvpcharts0x2.jpg
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    Document 14 - file: ny20006520x1_pvpcharts0x2.jpg

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    <FILENAME>ny20006520x1_pvpcharts0x3.jpg
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    Document 15 - file: ny20006520x1_pvpcharts0x3.jpg

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    <FILENAME>ny20006520x1_rbetler.jpg
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    Document 16 - file: ny20006520x1_rbetler.jpg

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    <FILENAME>sig_patrickguinee.jpg
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    Document 17 - file: sig_patrickguinee.jpg

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