Conn. Gen. Stat. § 13a-82
When the owner of land adjoining a highway, or of any interest in such land, sustains special damage or receives special benefits to his property by reason of any change in the grade of such highway, or by reason of excavations in such highway, made in the process of repairing the same by the town, city or borough in which such highway is situated, or by any corporation, whether acting by authority or direction of the Public Utilities Regulatory Authority or otherwise, such town, city, borough or corporation shall be liable to pay to such owner the amount of such special damage and shall be entitled to receive from him the amount or value of such special benefits, to be ascertained in the manner provided for ascertaining damages and benefits occasioned by laying out or altering highways. Whenever special benefits are finally assessed and established concerning any lands or interests therein, under the foregoing provisions, such town, city, borough or corporation shall have a lien upon the lands concerning or upon which they are so assessed, to be established and enforced in the manner provided for establishing and enforcing liens for benefits occasioned by public works in the town, city or borough in which such highway is situated.
Conn. Gen. Stat. § 13a-82
(1949 Rev., S. 2143; 1958 Rev., S. 13-27; 1963, P.A. 226, S. 82; P.A. 75-486, S. 31, 69; P.A. 77-614, S. 162, 610; P.A. 80-482, S. 27, 348; P.A. 11-80, S. 1.)
Railroad company legally changing grade of street liable for actual damage to landowner. 22 C. 74. Damages paid by city for land taken for street include damages from grading. 44 C. 252; 47 C. 314. Municipality might (before statute) change grade of street without liability for necessary damage to adjoining owners. Id., 313. City liable by statute for damage from change of grade, and, neglecting to ascertain damage by statutory method, is liable to action at law. 49 C. 398. Adjoining owner acquires by use no right to basement steps in sidewalk, and recovers no damage for changed grade of sidewalk making them useless. 61 C. 522. Adjoining owner may recover value of sidewalk destroyed by change of grade. 62 C. 456; 63 C. 426. When town changes grade without notice, adjoining owner may have action at law. Id.; 104 C. 453. Selectmen may submit to arbitration damage to adjoining owner from change of grade. 64 C. 88. What is to be considered in fixing damage from change of grade. 66 C. 320, 413; 71 C. 652; 73 C. 359; 76 C. 278; 85 C. 255; 89 C. 343. What constitutes "grade" and "change of grade"; 66 C. 335; 71 Conn. 652; 76 Conn. 278; Id., 700; in part of highway. 89 C. 347. Adjoining landowner cannot maintain action at law for damage from change of grade until municipality has failed to perform duty to ascertain damage in statutory manner. 68 C. 72; 73 C. 348. Change of grade not a taking of land. 68 Conn. 72; 72 C. 275; 77 C. 438. Change of grade in sidewalk. 71 Conn. 652; 94 C. 154. Adjoining owner may recover damage from change of grade probable when he built. 71 Conn. 652. City liable for damages from change of grade made under order of railroad commissioners. 72 C. 283. Damages measured by diminution in value of party's land, regardless of the quantity of his interest. Id., 292. No liability at common law. 73 C. 37. Liability of town under Good Roads Act. 75 C. 192. Purchase of land after change ordered does not preclude right to damages. 76 Conn. 278. Determination of special benefits; what they are. Id.; 85 Conn. 255; 89 Conn. 343. Removal of grade crossing not change of grade. 77 C. 494. Change of grade of highway in 1896 does not prevent recovery for change of grade of sidewalk in 1914 to conform to street grade. 94 Conn. 154. Life tenant and remainderman each has separate interests and may sue separately or join as parties plaintiff. 104 C. 458. Except as modified by statute, there is no liability upon a municipality for changes in surface of land taken for highway purposes. 113 C. 659. Where grade changed, damages are recoverable for destruction of shade trees within highway limits; but not where no material change of grade. 115 C. 611. Property owner entitled to recover only excess of damages suffered above amount of special benefits actually received. Id., 629. Cited. 117 C. 501. The general rule that damages can be awarded for future changes in use of land taken for a highway is qualified so far as statute permits recovery for subsequent changes of grade when they are made. 127 C. 459. Town, not state, liable for special damages resulting from change of grade. 8 CS 447; 11 Conn.Supp. 391. Cited. Id., 429.