CATEGORY 200 GRADING SECTION 207 — REMOVAL OF EXISTING MASONRY
207.01 Description
Remove all or part of existing concrete, concrete block, brick, or stone structures (headwalls, toe walls, etc.), including concrete piles. Refer to Section 405 for removal of existing bridge structures, box culverts, retaining walls, and noise barriers.
207.02 Materials
Not applicable.
207.03 Construction
207.03.01 Removal. Unless otherwise specified, remove material to at least 1 ft below subgrade
or existing ground. Except with written approval, do not use blasting. Piles, grillages, and cribbing under removed masonry shall be cut off to the above limit.
207.03.02 Use of Removed Masonry. Masonry material may be broken and used as specified in
204.02.01 Material determined to be unsuitable shall be disposed of as excess or unsuitable
material. 207.03.03 Protection of Retained Masonry. Repair or replace retained sections that are damaged due to the construction operations. Cut connecting edges and surfaces to the line and grade specified or as directed.
207.04 Measurement and Payment
The payment will be full compensation for all excavation, backfill, disposal of excess or unsuitable material, blasting, and for all material, labor, equipment, tools, and incidentals necessary to complete the work.
207.04.01 Removal of Existing Masonry will be paid for at the Contract lump sum price.
207.04.02 When specified in the Contract Documents, Removal of Existing Masonry will be
measured and paid for at the Contract unit price per cubic yard. 207.04.03 When a new structure is placed in the location of an existing structure, the removal of the existing structure will be incidental to the new structure, unless otherwise specified. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS 208 — SUBGRADE PREPARATION CATEGORY 200 GRADING SECTION 208 — SUBGRADE PREPARATION
208.01 Description
Prepare, protect, and maintain the subgrade prior to the construction of succeeding courses.
208.02 Materials
Refer to Section 916.
208.03 Construction
After roadway excavation and embankments are completed in conformance with Section 204, fine grade and compact the subgrade to at least 97 percent of the maximum dry density according to T 180.
208.03.01 Removal and Replacement of Unsuitable Material. Remove and dispose of all soft
and unstable material and any other portions of the subgrade that will not properly compact. Replace with suitable material and compact.
208.03.02 Subgrade Control. Bring the subgrade surface to line and grade and shape it to the
specified cross section. Set grade for subgrade control both longitudinally and transversely with fixed controls not exceeding 25 ft spacing. Limit the finish subgrade deviation to 1/2 in. from the established grade. Compact and smooth the subgrade over its full width by the use of an approved smooth faced, steel-wheeled roller approved by the Engineer. Use mechanical tampers and vibratory compactors if rolling is not feasible.
208.03.03 Bleeder Ditches. Maintain adequate open bleeder ditches along the subgrade at all
times to keep it thoroughly drained. Maintain erosion and sediment control practices as specified in Section 308.
208.03.04 Subgrade Maintenance. Prevent damage by heavy loads or equipment. Repair or
replace any defects or damage. 208.03.05 Subgrade Approval. Do not place subsequent cover material upon a frozen subgrade or any subgrade until it has been checked and approved. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS