Exhibit 23 DELOITTE & TOUCHE LLP (letterhead) 2000 First National Center Telephone 402-346-7788 Omaha, NE 68102-1578 Facsimile 402-346-0711 402-344-0372 INDEPENDENT AUDITORS' CONSENT - ----------------------------- We consent to incorporation by reference in Registration Statements No. 2-88663, 33-21680, 33-57117, and 333-02785 of Valmont Industries, Inc. on Form S-8 of our reports dated February 5, 1999 appearing in or incorporated by reference in the Annual Report on Form 10-K of Valmont Industries, Inc. for the year ended December 26, 1998. DELOITTE & TOUCHE LLP Omaha, Nebraska March 24, 1999 202