§ 18-25 CONSTRUCTION STANDARDS.
   (a)   The entire right-of-way must be cleared and grubbed.
   (b)   The right-of-way must be surveyed and established with iron pins.
   (c)   Subgrade and fill requirements:
      (1)   In all roadway areas, any soft, unstable, organic, or other non-structural material shall be removed and replaced with suitable structural fill material per the density requirements listed below.
      (2)   The subgrade and fill sections must be compacted to not less than 95% maximum density as determined by AASHTO T-99, S.C. T-25, or S.C. T-29 test methods, or be on stable, undisturbed ground. The county engineer may require compaction tests by an independent testing lab to assure compliance. Compaction tests by a certified geotechnical testing lab shall be required on all roadway utility trenches and/or fill sections. Tests shall be taken at minimum 250-foot intervals. Greater testing frequency may be required by the county engineer in specific areas.
   (d)   Inspection and approval of all work by the design engineer of record and approval by the county engineer is required at the following stages:
      (1)   Completion of clearing and grubbing.
      (2)   Completion of rough grading and drainage improvements.
      (3)   Completion of subgrade and proofroll.
      (4)   Inspection during paving operations.
      (5)   Final acceptance inspection.
   (e)   All construction must be in accordance with approved plans.
(1976 Code, § 18-25) (Ord. 3342, § 1, passed 3-7-2000)