All public roads, causeways and bridges laid out as such, or made by lawful authority, or which have been used as such and maintained at the public charge for 20 years or more are declared to be common highways. The usage by the public for 20 years or more of any road shall not cause the road to become a common highway or public road unless the same has been maintained at the public charge for 20 years or more.
Structure Delaware Code
Chapter 5. HIGHWAYS, ROADS AND BRIDGES GENERALLY
§ 501. Use of public road or bridge by railway.
§ 502. Closing of roads during repair.
§ 505. Selling of nonuniform traffic-control devices; penalty.
§ 506. Maintenance priority of roads used for school buses or mail routes.
§ 507. Coordinating new development with local transportation improvements.
§ 508. Dedication of new roads for state maintenance; approval required; security.
§ 509. Highways deemed public roads.
§ 510. Speed limit and weight limits on structure.
§ 511. Injury to roads and bridges; double damages; jurisdiction of courts; procedure and appeal.
§ 512. Injury to roads, bridges, etc.; penalty.
§ 513. Trimming of hedges and removal of trimmings; penalty.
§ 515. Maintenance of unfenced junkyards within certain distance of highways; penalty.
§ 516. Creation or maintenance of nuisance within certain limits.
§ 517. Boulevard corporations.
§ 518. Trash within a certain distance of the highway; penalty.
§ 519. William J. Winchester Bridge.
§ 520. Injury to trees, shrubs, and landscaping.
§ 521. Snow removal in nonmunicipal residential communities.
§ 524. Removal of nonofficial signs from utility poles within state rights-of-way.
§ 525. Maintenance of clear zones within rights-of-way.
§ 527. Coordination with other statutes.
§ 528. Restrictions against vehicle sales activities on State rights-of-way.
§ 529. Inspection requirements for bridge owners.
§ 530. Dedication of right-of-way adjacent to a state highway.
§ 531. Connections to roads within restricted age communities.