for Highway Construction Page 177 of 715 SECTION 214 – ROADSIDE CLEANUP
214.01 Description.
Remove and dispose of stumps, foundations, debris, and boulders and perform minor leveling and drifting of material between the limits of clearing and right of way only as specified or as directed. The Department will not pay for neces sary cleanup resulting from the Contractor’s operations.
214.02 Materials.
Not specified.
214.03 Construction Requirements.
Not specified.
214.04 Method of Measurement.
The Engineer will measure acceptably completed work as specified in 109.03.
214.05 Basis of Payment .
The Department will pay for acceptable quantities as follows: Pay Item Pay Unit Roadside Cleanup (Contingency Item) ................................................... CA for Highway Construction Page 178 of 71 5 SECTION 215 – GEOSYNT HETIC REINFORCED ABUTMENT BACKFILL
215.01 Description.
Provide materials and construct geosynthetic reinforced abutment backfill .
215.02 Materials.
3/4 inch Aggregate for Untreated Base, Type A or B in accordance with 703.04. Subgrade Separation Geotextile , Type III in accordance with 718.07.
215.03 Construction Requirements.
Prepare the excavated area to a smooth, uniform condition without ruts, potholes, or protruding objects such as rocks or sticks. Excavate the existing roadway to the limits shown. Compact the bottom of excavated area with a minimum of 5 overlapping passes with an approved compactor. Remove and dispose of unsuitable foundation material below the bottom of the excavated area as directed. Replace material removed from below the designed elevation with approved material. Compact replacement material to Class A requirements as specified in 205.03.G. Place the geotextile in accordance with 640 with the roll direction perpendicular to the abutment bac k wall or wing walls. Install geotextile without wrinkles or folds, and tension the geotextile while placing the backfil l. Cover each geotextile layer entirely before starting the next lift. If geotextile from a different orientation overlaps the geotextile behind the abutment, maintain a minimum 4” vertical separation between geotextile layers. Place the abutment geotext ile in 16 inch lifts, or as specified. The geotextile does not have to be wrapped at the ends unless specified. Place backfill so as not to misalign or damage the abutment walls, wing walls or drainage system. Do not place backfill against newly constructed masonry or concrete structures until all 502.03 requirements have been fulfilled. Ensure that the backfill material maximum lift thickness after compaction is 8 in ches or less. Compact backfill in accordance with Class A compaction requirements. Field density testing will be performed at the same frequency as bridge abutments and approach slabs per the “Structure Backfill” construction type under I tem 210 – Compacting Backfill in the Quality Assurance Manual. Compact backfill within 3 feet of the structure by at least 5 passes of a lightweight mechanical tamper or roller. Density tests are not required within 3 feet of the walls. Slope the backfill away from all wall faces at the end of each day's operation to direct surface runoff away from the walls. Do not allow surface runoff from adjacent areas to enter the wall construction site .
215.04 Method of Measurement.
The Engineer will measure acceptably completed work by the cubic yard based on plan quantity .
215.05 Basis of Payment .
The Department will pay for accepted quantities at the contract unit price as follows: Pay Item Pay Unit Geosynthetic Reinforced Abutment Backfill ............................................ CY