<SEC-DOCUMENT>0000353020-18-000043-index.html : 20180503
<SEC-HEADER>0000353020-18-000043.hdr.sgml : 20180503
<ACCEPTANCE-DATETIME>20180503081201
ACCESSION NUMBER:		0000353020-18-000043
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		22
CONFORMED PERIOD OF REPORT:	20180503
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20180503
DATE AS OF CHANGE:		20180503

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Aegion Corp
		CENTRAL INDEX KEY:			0000353020
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER, SEWER, PIPELINE, COMM AND POWER LINE CONSTRUCTION [1623]
		IRS NUMBER:				133032158
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35328
		FILM NUMBER:		18801864

	BUSINESS ADDRESS:	
		STREET 1:		17988 EDISON AVENUE
		CITY:			CHESTERFIELD
		STATE:			MO
		ZIP:			63005
		BUSINESS PHONE:		6365308000

	MAIL ADDRESS:	
		STREET 1:		17988 EDISON AVENUE
		CITY:			CHESTERFIELD
		STATE:			MO
		ZIP:			63005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INSITUFORM TECHNOLOGIES INC
		DATE OF NAME CHANGE:	19930617

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INSITUFORM OF NORTH AMERICA INC/TN/
		DATE OF NAME CHANGE:	19930617

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INSITUFORM OF NORTH AMERICA INC
		DATE OF NAME CHANGE:	19921217
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>form8-k2018q1earningsslides.htm
<DESCRIPTION>8-K (2018 Q1 EARNINGS SLIDES)
<TEXT>
Document 1 - file: form8-k2018q1earningsslides.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>exhibit991-2018q1earningss.htm
<DESCRIPTION>EXHIBIT 99.1 - 2018 Q1 EARNINGS SLIDES
<TEXT>
Document 2 - file: exhibit991-2018q1earningss.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>page64.jpg
<TEXT>
Document 3 - file: page64.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>page65.jpg
<TEXT>
Document 4 - file: page65.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>page66.jpg
<TEXT>
Document 5 - file: page66.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>page67.jpg
<TEXT>
Document 6 - file: page67.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>page68.jpg
<TEXT>
Document 7 - file: page68.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>page69.jpg
<TEXT>
Document 8 - file: page69.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>page70.jpg
<TEXT>
Document 9 - file: page70.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>page71.jpg
<TEXT>
Document 10 - file: page71.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>page72.jpg
<TEXT>
Document 11 - file: page72.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>page73.jpg
<TEXT>
Document 12 - file: page73.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>page74.jpg
<TEXT>
Document 13 - file: page74.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>page75.jpg
<TEXT>
Document 14 - file: page75.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>page76.jpg
<TEXT>
Document 15 - file: page76.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>page77.jpg
<TEXT>
Document 16 - file: page77.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>pagea1a03.jpg
<TEXT>
Document 17 - file: pagea1a03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>pagea2a03.jpg
<TEXT>
Document 18 - file: pagea2a03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>pagea3a04.jpg
<TEXT>
Document 19 - file: pagea3a04.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>pagea4a04.jpg
<TEXT>
Document 20 - file: pagea4a04.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>pagea5a03.jpg
<TEXT>
Document 21 - file: pagea5a03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>pagea6a01.jpg
<TEXT>
Document 22 - file: pagea6a01.jpg

</DOCUMENT>
</SEC-DOCUMENT>