Exhibit 23 Consent of Boldt, Carlisle & Smith BOLDT, 2001 FRONT STREET N.E., SUITE D CARLISLE SALEM, OR 97303-6651 & SMITH (503) 585- 7751 Certified Public Accountants FAX 769- 4312 408 NORTH THIRD AVENUE STAYTON, OR 97383-1797 (503) 769- 2186 FAX 769- 4312 August 3, 1995 VALMONT INDUSTRIES, INC. P.O. Box 358 Valley, NE 68064 CONSENT OF INDEPENDENT AUDITOR We consent to the use in this Form 8-K of Valmont Industries, Inc. of our report dated March 18, 1995 on our audits of the financial statements of Microflect Company Inc. as of December 31, 1994 and 1993, which is part of this Form 8-K. Very truly yours, BOLDT, CARLISLE & SMITH, LLC /s/ Robert L. Boldt, CPA