Rhode Island General Laws Title 24. Highways § 24-8-32. Drainage of surface water

Whenever any culvert, drain, or watercourse has been placed and maintained or has existed under or within a state highway for the purpose of disposing of surface water drainage, it shall be unlawful for any person, firm, or corporation to obstruct, block, or close any intake or outlet from the culvert, drain, or watercourse without first obtaining permission from the state department of transportation, which may grant the permits under the terms and conditions as are warranted.