Conn. Agencies Regs. § 13b-17-36
As soon as the excavations have been backfilled and tamped, the pavement shall be replaced temporarily by the permittee. The temporary pavement shall consist of bituminous concrete mixture approved by the Inspector, compressed to a minimum depth of two inches on a base in accordance with current Standard Specifications for Roads, Bridges and Incidental Construction, as revised. The surface of the temporary pavement shall not extend above or below the surface of the surrounding permanent pavement and shall be reasonably smooth. The permittee shall be responsible for the temporary pavement and shall keep this pavement in repair until the permanent surface can be replaced. Additional material shall be added, as necessary, as the backfill settles. In any case, if the permittee does not maintain the temporary pavement adequately, the District Maintenance Manager will make the necessary repairs to prevent accidents and the permittee will be charged by the State for this work, with a minimum charge of $400 per incident.
Conn. Agencies Regs. § 13b-17-36