Section 216 Section 216 If solid sodding is required by the contract, or ordered by the Engineer, on a section graded under a previous contract, required excavation, exclusive of trenching out and fine grading, will be measured under the appropriate excavation item of the contract, or as extra work. Water ordered will be measured and paid for as prescribed in Subsection 219.04.
216.05 Basis of Payment . Solid sodding will be paid for at the contract unit price per
square yard, which price shall be full compensation for all labor, equipment, materials, tools, ground preparation, fertilization, a nd all incidentals necessary to complete the work. Payment will be made under: 216-A: Solid Sodding - per square yard 216-B: Solid Sodding, Kind - per square yard SECTION 217 - DITCH LINER
217.01 Description . This work consists of furnishing, placing, and maintaining a ditch
liner of jute mesh, excelsior blanket, erosion control blanket or erosion control fabric on seeded, or other designated areas in acco rdance with the plans and specifications. Asphalt-coated fiber glass roving meeting the requirements of Section 218 may be substituted for ditch liner. Any substituted fiber glass roving will be measured by the square yard and paid at the contract bid price for ditch liner.
217.02 Materials . The type of material used for the ditch liner shall be at the option of
the Contractor unless otherwise specified. Jute mesh, excelsior blanket, erosion control blanket and erosion control fabric shall meet the requirements of Subsection 715.09.
217.03 Construction Requirements .
217.03.1 General . The areas to be covered shall be prepared, fertilized, vegetated and
left in a smooth uniform condition, free of stones, lumps, roots or other material that will prevent the ditch liner from being in contact with the underlying soil. Immediately following the planting operation, the ditch liner shall be installed by unrolling it in the direction of water flow and draping it loosely, without folds or stretching, so that continuous ground contact is maintained. The mulch material shall be omitted from areas receiving the ditch liner. When two or more strips are required to cover a ditch area, the longitudinal laps shall be a minimum of four inches with the upgrade width on top. Transverse laps shall be a minimum of 12 inches with the upgrade section on top. The end of the material at the beginning and ending of each area to be covered shall be folded and placed in a vertical anchor trench at least six inches deep, and stapled in the trench on six-inch centers, backfilled, and tamped. When directed, edges subject to scour shall be buried similarly. On the upgrade end, reinforce with a row of staples on six-inch centers about one foot below the anchor trench. All transverse laps shall be stapled on 12-inch centers and longitudinal laps on 36-inch centers. Each strip of material shall be stapled in three rows at the edges and center with staples spaced not more than three feet longitudinally. The staples shall anchor the fabric netting. Check slots, a row of staples on 12-inch centers perpendicular to the flow lin e, shall be installed at 50-foot intervals. On the downstream end of a d itch liner adjoining a structure, the anchor trench shall be omitted and the material folded under six inches and butted tightly against the structure and one row of staples installed on six-inch centers. An edge adjacent to a paved ditch shall be butted tightly against the paved ditch and a row of staples installed on 12-inch centers. All staples shall be driven flush with the soil surfaces. Ditch liner materials used on areas other than ditches may be placed e ither horizontally or vertically. Adjacent strips of excelsior blanket material sh all be butted tightly together and secured with a common row of staples rather than lapped as set forth for ditch installation. The staples shall be spaced on thre e-foot centers or less as determined by the Engineer based on field conditions. The excelsior blanket and erosion control blanket shall be placed with the fabric net facing up.
217.03.2 Protection and Maintenance . The Contractor shall maintain and protect the
ditch liner until release of maintenance or until the Engineer has determined that the liner has served its useful life, whichever occurs first. Maintenance shall consist of repairs necessitated by erosion, wind, fire, or other cause.
217.04 Method of Measurement . Ditch liner will be measur ed by the square yard of
surface area covered. Any over width of materi al installed wider than ordered, laps and anchor slots will not be measured for payment. 217.05--Basis of Payment . Ditch liner, measured as prescribed above, will be paid for at the contract unit price per square yard and shall be full compensation for completing the work. Payment will be made under: 217-A: Ditch Liner - per square yard SECTION 218 - BITUMINO US TREATED ROVING
218.01 Description. This work consists of furnishing and installing a layer of
bituminous treated roving to stabilize newly pl anted soil areas in ditches and on slopes in accordance with these specifications and at locatio ns shown on the plans or as directed by the Engineer.
218.02 Materials.
218.02.1 General. The type of roving material, fiberglass or polypropylene, shall be at
the option of the Contractor unless otherwis e specified and shall meet the applicable requirements of Subsection 715.09.6. The glass fibers or fibrillated polypropylene yarn shall be wound onto cylindrical packages so that the roving can be continuously fed through an ejector driven by