1 Exhibit 23.1 Deloitte & Touche ----------------------------------------------------------------- Certified Public Accountants Deloitte & Touch LLP Suite 900 1645 Palm Beach Lakes Boulevard West Palm Beach, Florida 33401-2221 Telephone: (561) 687-4000 Facsimile: (561) 687-4061 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement No. 33-46506 of Dycom Industries, Inc. on Form S-8 and Registration No. 333-72931 of Dycom Industries, Inc. on Form S-8 of our report dated August 30, 1999 appearing in this Annual Report on Form 10-K of Dycom Industries, Inc. for the year ended July 31, 1999. /s/ Deloitte & Touche LLP DELOITTE & TOUCHE LLP Certified Public Accountants West Palm Beach, Florida October 4, 1999