Attached files

file filename
10-K - 10-K 2019 - Infrastructure & Energy Alternatives, Inc.a201910-k.htm
EX-32.2 - EXHIBIT 32.2 CFO CERTIFICATION 906 - Infrastructure & Energy Alternatives, Inc.cfocertsection906322-123119.htm
EX-32.1 - EXHIBIT 32.1 CEO CERTIFICATION 906 - Infrastructure & Energy Alternatives, Inc.ceocertsection906321-123119.htm
EX-31.2 - EXHIBIT 31.2 CFO CERTIFICATION 302 - Infrastructure & Energy Alternatives, Inc.cfocertsection302a312123119.htm
EX-31.1 - EXHIBIT 31.1 CEO 302 CERT - Infrastructure & Energy Alternatives, Inc.ceocertsection302a311123119.htm
EX-23.2 - EXHIBIT 23.2 CROWE CONSENT - Infrastructure & Energy Alternatives, Inc.crowellpconsent.htm
EX-21.1 - SUBSIDIARY LISTING - Infrastructure & Energy Alternatives, Inc.subsidiarylisting211-123119.htm
EX-10.52 - EXHIBIT 10.52 SEPARATION AGREEMENT - Infrastructure & Energy Alternatives, Inc.laymanseperationagreement.htm
EX-10.51 - EXHIBIT 10.51 OFFER AGREEMENT - Infrastructure & Energy Alternatives, Inc.peterjmoerbeekofferletter.htm
EX-4.1 - DESCRIPTION OF REGISTERED SECURITIES - Infrastructure & Energy Alternatives, Inc.descriptionofregisteredsec.htm


CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-225480 on Form S-8 and Registration No. 333-224337 on Form S-3 of our report dated March 11, 2020, relating to the consolidated financial statements of Infrastructure and Energy Alternatives, Inc. and the effectiveness of Infrastructure and Energy Alternatives, Inc.’s internal control over financial reporting, appearing in this Annual Report on Form 10-K for the year ended December 31, 2019.


/s/ Deloitte & Touche LLP

Indianapolis, Indiana
March 11, 2020