P03_SD_CS-95_Geotextile_2022.docx
DOCX document 47 KB Posted
- Attached to
- NRCS South Dakota Easement Restoration IDIQ
- Solicitation number
- 12FPC124Q0011
About this file
This document is a Construction Specification for Geotextile from the Natural Resources Conservation Service (NRCS) in South Dakota.
The specification covers the requirements for furnishing and installing geotextile materials, including quality standards, storage, surface preparation, and placement methods. It specifies that geotextile sections must be joined by sewing or overlapping, and provides detailed requirements for securing the geotextile to the underlying surface. The geotextile must meet the requirements outlined in Material Specification SD-592.
The related federal contract opportunity is a solicitation for NRCS Easement Restoration and Emergency Watershed Protection services in South Dakota. The contract is an Indefinite Delivery Indefinite Quantity (IDIQ) with a performance period of one year. Quotes are due by May 20, 2024 at 5:00 PM, and questions are due by May 10, 2024 at 2:00 PM. The contracting agency is the USDA Under Secretary for Farm Production and Conservation.
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Text version
Natural Resources Conservation Service
Construction Specification SD-95 Geotextile
1. Scope The work shall consist of furnishing all material, equipment, and labor necessary for the installation of geotextiles.
2. Quality Geotextiles shall conform to the requirements of Material Specification SD-592 and this specification.
3. Storage Before installation, geotextile shall be protected from damage by weather, sunlight, and other causes.
4. Surface Preparation The surface on which geotextile is to be placed shall be graded to the neat lines and grades shown on the drawings. Except as shown on the drawings, the surface shall be reasonably smooth and free of loose rock and clods, holes, depressions, projections, standing or flowing water, and muddy conditions.
5. Placement Before geotextile is placed, the soil surface will be inspected for quality assurance. Geotextile shall be unrolled along the placement area and loosely laid without stretching so that it will conform to surface irregularities without tearing when upper materials are placed. The geotextile may be folded and/or overlapped as needed for proper placement. Geotextile sections shall be joined by sewing or overlapping.
Geotextile sections joined by sewing shall have seams producing minimum seam strength equal to 90 percent of minimum fabric strength. The sewn overlap shall be at least six inches, and the sewing shall consist of at least two parallel stitched rows at least one-half inch apart with rows at least two inches from fabric edges. The stitching must be a lock-type stitch. Installed geotextile must be secured to prevent movement during construction.
Geotextile sections joined by overlapping shall be overlapped a minimum of 18 inches and secured to the underlying soil surface using securing pins as provided and recommended by the geotextile manufacturer. Upstream or upslope geotextile sections shall overlap abutting downslope geotextile.
Geotextile tears shall be repaired by overlap (described above) of additional geotextile placed in contact with the torn geotextile.
| NRCS, SD | CONSTRUCTION SPECIFICATION SD-95 – Page 2 of 2 | October 2022 |
| NRCS, SD | CONSTRUCTION SPECIFICATION SD-95 – Page 1 of 4 | October 2022 |
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