Conn. Agencies Regs. § 13b-17-12
When the permittee desires to excavate and remove 200 cubic yards or more of material, he/she shall notify the District Maintenance Manager prior to the commencement of excavation work. The permittee must submit cross sections and quantity figures, certified by a Professional Engineer and/or Land Surveyor licensed to practice in the State of Connecticut, showing the actual amount of material to be removed from within the highway right of way. The Department will set the price per cubic yard for the material using this figure, a certified check covering the total value of material removed shall be made payable to the Treasurer of the State of Connecticut, and deposited by the permittee with the Department, before any excavation work is undertaken.
Upon completion of all work in the permit, the amount of material removed will be computed and certified by a professional engineer and/or land surveyor, when requested by the Department, and the excess amount of the deposit refunded, or, if there is an increase in the amount of material, the permittee will be billed for the increase by the Department.
Conn. Agencies Regs. § 13b-17-12