Del. Code tit. 26 § 612
All cable systems holding a franchise granted under this chapter or by a municipality having the power either express or implied under its charter to grant a franchise to a system shall have the right to occupy the public highways, streets, roads, alleys, turnpikes and waterways within this State, provided that within incorporated municipalities, they shall have received permission to do so from the municipality, and without incorporated municipalities, they shall have complied with such written regulations established by the Department of Transportation for the occupancy and use of such public ways by telephone corporations and such occupancy and use will not unduly interfere with preexisting use of such public ways by any public utility.
26 Del. C. § 612