Conn. Agencies Regs. § 13b-17-28
It shall be the duty of the permittee to make certain that the security of the traveling public is safeguarded and that their rights are not unreasonably curtailed. During the working periods, the permittee shall install and maintain signs in conformance with the Department's current signing patterns. These signs shall be supplied by and at the expense of the permittee. Unless specifically stated in the permit or authorized by the Permit Inspector, the traveled path shall not be obstructed. Also, such portion of the right of way within 30 feet of the traveled way which otherwise would be an obstruction-free roadside area shall not be obstructed by the storage of material, equipment, or any other object which might be a hazard to an errant vehicle. The portions of the highway which are torn up, are used for storing materials, or are otherwise unsafe for public travel shall be adequately protected at all times to avoid the possibility of accident. Such areas shall be marked at night by lights, flashing beacons or other warning devices approved by the Permit Inspector. To protect the users of the highway, additional traffic control warning devices shall be placed by the permittee when ordered by the Permit Inspector. When portions of the traveled way are made dangerous for the movement of vehicles or pedestrians, a sufficient number of uniformed police officers or other traffic control personnel shall be employed by the permittee to direct traffic safely through the areas. If such conditions exist at the close of the working day, a watchperson and a sufficient number of traffic control personnel shall be assigned by the permittee to direct traffic at night. The work must be planned to avoid such conditions whenever possible.
Conn. Agencies Regs. § 13b-17-28