<SEC-DOCUMENT>0001213900-16-010862-index.html : 20160212
<SEC-HEADER>0001213900-16-010862.hdr.sgml : 20160212
<ACCEPTANCE-DATETIME>20160212144543
ACCESSION NUMBER:		0001213900-16-010862
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20160212
DATE AS OF CHANGE:		20160212

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TRINITY INDUSTRIES INC
		CENTRAL INDEX KEY:			0000099780
		STANDARD INDUSTRIAL CLASSIFICATION:	RAILROAD EQUIPMENT [3743]
		IRS NUMBER:				750225040
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-20249
		FILM NUMBER:		161417951

	BUSINESS ADDRESS:	
		STREET 1:		2525 STEMMONS FREEWAY
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75207-2401
		BUSINESS PHONE:		214-631-4420

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TRINITY STEEL CO INC
		DATE OF NAME CHANGE:	19720407

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SOUTHERNSUN ASSET MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001089755
		IRS NUMBER:				272990431
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		6070 POPLAR AVE.
		STREET 2:		STE 300
		CITY:			MEMPHIS
		STATE:			TN
		ZIP:			38119
		BUSINESS PHONE:		901-333-6980

	MAIL ADDRESS:	
		STREET 1:		6070 POPLAR AVE.
		STREET 2:		STE 300
		CITY:			MEMPHIS
		STATE:			TN
		ZIP:			38119

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SOUTHERNSUN ASSET MANAGEMENT, INC
		DATE OF NAME CHANGE:	20061207

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COOK MICHAEL W ASSET MANAGEMENT
		DATE OF NAME CHANGE:	19990629
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>sc13g0116southern_trinity.htm
<DESCRIPTION>SCHEDULE 13G
<TEXT>
Document 1 - file: sc13g0116southern_trinity.htm

</DOCUMENT>
</SEC-DOCUMENT>