NEWS RELEASE FOR IMMEDIATE RELEASE

Contact: Steven E. Nielsen, President and CEO
Richard L. Dunn, Senior Vice President and CFO
(561) 627-7171

Palm Beach Gardens, Florida

December 22, 2004

DYCOM INDUSTRIES, INC. ENTERS INTO A $300 MILLION CREDIT FACILITY

Palm Beach Gardens, Florida, December 22, 2004 — Dycom Industries, Inc. (NYSE Symbol: "DY") announced today that it has signed a new $300 million credit facility. This facility, which replaces the existing $200 million credit facility, provides available financing to Dycom through December 2009. The credit facility provides a $300 million revolving facility for general corporate purposes, which includes a $100 million letter of credit subfacility. The obligations under the credit facility are unsecured and are guaranteed by certain material subsidiaries of Dycom

Dycom is a leading provider of engineering, construction, and maintenance services to telecommunication providers throughout the United States. Additionally, the Company provides similar services related to the installation of integrated voice, data, and video local and wide area networks within office buildings and similar structures. Dycom also provides underground utility locating and mapping and electric utility construction services. Visit our web site at http://www.dycomind.com for additional corporate information.

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