(A) The sub-grade shall be free of sod, vegetative or organic matter, soft clay and objectionable materials for a depth of at least two feet below the finish surface.
(B) The sub-grade shall be properly rolled, shaped and compacted to the satisfaction of the City Manager and in accordance with the current edition of ODOT’s Construction and Material Specifications.
(C) All soft areas shall be removed and replaced with suitable granular approved by the City Manager. Backfills over sewers, culverts and underground utilities in the roadway shall also meet the specifications in the current edition of ODOT’s Construction and Material Specifications.
(D) Sub-base grade tolerance shall be no more than one inch in 16 feet, and shall be subject to the approval of the City Manager.
(E) Where granular subbase is not a part of the pavement design, and rock, shale or coal is encountered; the sub-grade shall be excavated to a depth of two feet below the surface of the sub-grade for the cross section width of the roadway between points one foot beyond the shoulders. The additional excavation shall be filled with suitable embankment material.
(F) Where granular sub-base is a part of the pavement design, and rock, shale or coal is encountered; the sub-grade shall be excavated to a depth of 18 inches below the sub-base for the cross section width of the roadway between points one foot beyond the shoulders. The additional excavation shall be filled with suitable embankment material.
(G) Approval of the sub-grade shall be obtained from the City Manager prior to the application of the base course.
(Prior Code, § 23.05.24) Penalty, see § 151.999