Section 209 Section 209 Geotextiles that weigh less than eight ounces per square yard shall be factory or field sewn with a "J" type seam. Heavier weight geotextiles shall be factory sewn with two parallel bag type seams approximately one-four th inch apart or field sewn with an additional seam zigzagged across the two parallel seams. Securing pins with washers shall be inserted along a line through the mid-point of any overlap or sewn seam at intervals required by the Engineer to prevent movement of the geotextile until covered. The subsequent course of material shall be back-dumped in such a manner as to avoid damage to the underlying geotextile. No equipment will be allowed to operate over the geotextile until it is covered with a layer of material of sufficient thickness to protect the geotextile installation. When the underlying soil is very unstable, the two outer one-third portions of an embankment layer shall be pl aced approximately 25 feet in advance of the center one-third portion to prevent excessive mudwave movements and damage to the geotextile installation. The Contractor shall provide equipment necessary for placing the geotextile in the position and location as detailed on the plans. The geotextile shall be protected from contamination and damage during installation and placement of the specified cover material. Contaminated geotextile shall be replaced, and damaged geotextile shall be repaired or replaced as directed at no co st to the Department. The geotextile shall be covered with a layer of the specified material within 14 calendar days after placement. Geotextile not covered within this time period shall be removed and replaced at the C ontractor's expense.
209.04 Method of Measurement . Geotextile stabilization, placed in accordance with
these specifications and as directed by the Engineer, will be measured by the square yard of surface area covered. Any over width of material installed and additional material required for laps or sewing will not be measured.
209.05 Basis of Payment . Geotextile stabilization, measured as prescribed above, will
be paid for at the contract unit price per square yard, which price shall be full compensation for furnishing and placing the geotextile, pins, lapping, sewing, maintaining the geotextile until covered, and satisfactorily completing the work. Payment will be made under: 209-A: Geotextile Stabilization, Type ____, AOS * - per square yard * When not designated, see 714.13. SECTION 210 - ROADSIDE DEVELOPMENT
210.01 General Provisions . Where the term "plant establishment" is used, it shall be
understood to mean the work and time necessary to provide fully established, healthy vegetation. Where the term "dormant" is used, it shall be understood to mean the temporary inactive stage of a living plant or seed. When the term "dormant season" is used, it shall be understood to mean a period of time during the year when germination and growth is not expected. It shall be further understood th at the limits of the dormant season for each kind of plant shall be determined by the State Roadside Development Manager or authorized representative. Planting and establishment of vegetation shall be performed at the earliest practicable time consistent with other operations to provide that the maximum permanent or temporary vegetation is established as quickly as possible. The Contractor shall schedule work so finishing of all areas requiring vegetation can begin as soon as practicable. Finishing of such areas and the planting shall progress at the same rate as the work. The Contractor shall perform plant establishment throughout the life of the contract. The Contractor, upon written notification by the Engineer of noncompliance with the preceding two paragraphs, will have 48 hours, excluding Sunday, to correct the situation and comply with the specifications. Upon failure of the Contractor to comply w ith the written notification, the Engineer will suspend any or all operations in progress as deemed necessary to ensure compliance and may deduct from all subsequent estimates an amount equal to 30 percent of the value of all erosion control items completed between the suspension date and subsequent date of compliance. By execution of th e contract, the Contractor agrees that such deduction will not be made as a penalty but as agreed reduction in pay for deficient performance by having failed to provide the Department with the maximum possible ground cover as intended under the contract. The requirements for growth and coverage for each kind of plant in its dormant season may be waived in areas in which planting, plant establishment, and maintenance have been performed in accordance with the requir ements of the Contract, provided at least one kind of plantings that is not in its dormant season shows satisfactory growth and coverage. When contract time has expired and all work under the contract has been completed except for the specified growth and coverage of vegetation, liquidated damages will not be charged provided the Engineer's diary documents that the following conditions have been met:
a.The Contractor has complied with all instructions of the Engineer with regard to plant establishment, including but not lim ited to watering, replanting, mowing, and other work specified fo r plant establishment; and
b.The work is deemed to be in a satis factory state of maintenance, or every reasonable effort is being made to provide satisfactory maintenance. When any of the conditions for waiver of liquidated damages have not been met, liquidated damages will be charged until the conditions are met or until release of maintenance, whichever occurs first. Some contracts may require that planting of trees and shrubs or other plantings be completed by a specified date because of seas onal requirements for their planting. In the event the Contractor fails to complete these plantings within the specified period and must wait until the next season, liquidated damages will be charged after the specified completion date until completion of all plantings as specified and all other work under the contract is completed, except when the Engineer attests that all other work is completed; all the work is in a satisfactory state of maintenance; and the only remaining work which can be performed under the contract is continued plant establishment, only one-seventh of the specified deductions for liquidated damages will be made. SECTION 211 - TOPSOILING
211.01 Description . This work consists of, furnishing if specified, excavating,
stockpiling if necessary, transporting, spreading, compacting, and finishing topsoil as specified or directed.
211.02 Materials . The sources and provisions for use of topsoil from local pits located
outside the right-of-way shall be as set forth in Section 106. Topsoil shall meet the applicable requirements of Subsection 715.01. When indicated in the contract, topsoil shall be salvaged from within the construction limits. The topsoil shall be removed only fr om areas and to depths designated by the Engineer. 211.02.1--Materials Obtained from Right-of-Way . Areas from which topsoil is to be obtained shall be mowed and cleared of foreign materials to the satisfaction of the Engineer. The approved area shall be excavated neither deeper than the limits of good topsoil nor deeper than necessary to produce sufficient volume to cover the designated areas. If strata or seams of unsuitable material are encountered during the excavation of topsoil, the material shall be removed from the topsoil. If considered necessary, the area shall be abandoned and satisfactory material produced from other sources. Topsoil shall be transported and stockpiled on well drained areas approved by the Engineer, or transported, deposited, and processed directly on designated areas that have been finished, prepared, and approved to receive the topsoil. The Contractor shall spread or dispose of, as directed, all surplus material left in stockpiles without cost to the Department.
211.02.2 Materials Obtained Outside Right-of-Way . Before mining the material,
approved areas shall be mowed and raked and cleared of foreign materials to the satisfaction of the Engineer. Approval of topsoil pits shall meet the requirements of Subsection 107.23. It is intended that approved mining operations shall include the mixing or blending of materials that will ensure a homogeneous mixture complying with the requirements of the contract.
Source: Mississippi Standard Specifications for Road and Bridge Construction, 2017 Edition. Pages 140–141 of 1,113.