Specifications include, but are not limited to: This project rehabilitates multiple sealcoat road locations by excavating/backfilling areas that fail a proof roll test conducted by the contractor, followed by hot mix asphalt (HMA) leveling and overlay.; Subgrade Stabilization, GR-11: This bid item is defined by SUDAS Section 7040 and the Davenport Supplemental Specifications with the following additions: Bid quantity was visually estimated for each road location, but shall be field determined by the Engineer or his representative by an initial proof roll completed by the Contractor. Proof rolling will be in accordance with SUDAS Section 2010, 3.06, B and is considered incidental to this line item. Excavation to a depth as directed by the Engineer or his representative, subgrade preparation, and site restoration/seeding are also considered incidental to this item. Geogrid (if necessary), County Macadam (if necessary) and HMA are paid for separately. The excavated area shall be backfilled, in compacted lifts not to exceed six inches, to elevation of the surrounding existing pavement. Recycled material shall not be allowed. Saw cutting existing pavement is required to minimize spalling of existing pavement.; Subgrade Stabilization, County Macadam (Allowance): This bid item shall be defined by SUDAS Section 2010 and the Davenport Supplemental Specifications with the following additions: When directed by the Engineer, use this item to further stabilize areas with poor subgrade soils. The intent is this item may be used in addition to, not in lieu of, bid item #9. Quantity assumes that 10% of bid item #9 areas will require overexcavation of an additional 18 inches. This item includes additional excavation, furnishing, placing, and compacting in six-inch lifts “County Macadam” (4-inch down with fines, or similar approved aggregate). Recycled material shall not be allowed. Depth of this material needed is to be field-determined by the Engineer or his representative.; HMA Overlay by Ton, Leveling Base Coarse: This bid item shall be defined by SUDAS 7021 with the following additions: Mix shall be HMA(ST), 1/2 inch or 3/8 inch, PG 58-28S. Quantity shall include potholing/leveling to rectify irregularities in the existing surface, plus one “scratch coat” lift across the project area. Base preparation is incidental to this item.; HMA Overlay by Ton, Surface Coarse: This bid item shall be defined by SUDAS 7021 with the following additions: Mix shall be HMA(ST), 1/2 inch or 3/8 inch, PG 58-28S. Depth shall be 1.5 inches atop the entire project area.; – Manhole Adjustment, Minor: This bid item shall be defined by SUDAS 6010 and the Davenport Supplemental Specifications with the following additions: concrete boxout shall be incidental to this item. Points of emphasis from the Supplemental Specifications are that new castings and an external chimney seals are required by referenced specs; sanitary manholes further require a gasketed lid.