rock slope protection fabric class 8

To better control the contractors selection of rocks for placing, ensure the contractor paints tonnage on large rocks used in foundation construction. KEwAx{N*$J }COpU?s{bs. Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may 0000014231 00000 n The contract will identify the designated method. When changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. Refer to Section 4-96, Geosynthetics, of this manual for guidelines for inspecting and accepting rock slope protection fabric. The finish surface must be roughened by brushing to expose rocks. The plans indicate the minimum depths of foundations. If excess concrete remains on the surface, the finished product, when used in streams, will be too smooth and, along the protection, velocities will increase beyond those intended during design. Place a highly permeable and appro-priately sized geotextile filter fabric on the prepared slope following the manufacturer's recommendations. NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. Technical Support available for assistance. Manufacturers information can be found at: Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. Before placement of the broken concrete, inspect the material and be sure the reinforcement has been removed flush to the surface of concrete. uuid:30dd8676-a64b-4579-9ccf-fc82965d356f Draw Down Device, Temporary Access Bridge (1 of 2, PDF only), Temporary Access Bridge(2 of 2, PDF only), Temporary Access Culvert (1 of 2, PDF only), Temporary Access Culvert (2 of 2, PDF only), Onsite Concrete Washout Structure (1 of 2, PDF only), Onsite Concrete Washout Structure (2 of 2, PDF only), If you are experiencing difficulty accessing these details or if there are anyquestions, please contact the Sediment, Stormwater & Dam Safety Program at (410) 537-3543 or by email (Amanda.Malcolm@maryland.gov, National Human Trafficking Hotline - 24/7 Confidential. 72-2.02B Fabric Fabric must be RSP fabric that complies with the class shown in the following table: 72-4 SMALL-ROCK SLOPE PROTECTION 72-4.02 MATERIALS For combination slope/bench systems in TYPE A soil and a trench depth of less than 8 feet, the steepest maximum allowable slope is 53 degrees from the horizontal. Review Section 4-90, Concrete, of this manual for details about concrete production. { , IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN. The concreted-rock slope protection method is used where large rock is not economically available in large quantities, yet a heavy, service type of protection is required. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. Use 5 to 7 st << Angular shaped rock may be used on any planned slope. The State of Maryland pledges to provide constituents, businesses, customers, and stakeholders with friendly and courteous, timely and responsive, accurate and consistent, accessible and convenient, and truthful and transparent services. Graniterock has a 101-year history of providing high quality products and service. Riprap is typically placed along graded ditch, channel, and shoreline banks over geotextile, which prevents erosional undercutting. 0000005658 00000 n The equilibrium soil-to-geotextile system that allows for adequate movement of a liquid across the plane of the geotextile with limited soil loss over the service lifetime of the application. Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. /OP true {.sAewh[w#Iv#W6f" $JOPf/W%%XKK&A~b ?nfY_iu"m]HDwP) Rp Please enable JavaScript in your browser. Ensure the equipment used during spreading does not crack the rock. Intermittent inspection of placement of slope protection, slope paving, and fabric operations. Rock riprap consists of loose rock that is dumped on the slope and distributed. =w (j($M/!bMbo,iDjQL1{L! Natural Resources & Energy Infrastructure, Energy - Power Generation - Renewables - Solar, Energy - Power Generation - Renewables - Wind. with a minimum of 50% of the stones . Review contractors verification of unit weight of rock-filled gabions. Mirafi 140N is a lightweight non woven geotextile that meets AASHTO M288 Class 3 geotextiles for separation and subsurface drainage. If the fabric is joined by stitched seams, stitch with contrasting colored yarn. The chart below lists US Fabrics' geosynthetics meeting CALTRANS specifications. The color shall be black unless otherwise specified in the contract documents. Mirafi N-Series Product Description Sheet. conforming to the requirements of 710-03 Vinyl Coated Steel Fence Fabric, Class A Wire Diameter, except color. (For large riprap, consider a four inch layer of sand to protect the . FDM 10-10-3 Angular shaped rock may be used on any planned slope. 6'' min. Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. Temporary structures shall be left in place until adequate vegetation and the permanent . BMP040 "rock slope protection (no fabric)" as applicable. <> Mirafi 180N is a moderate weight nonwoven geotextile that meets AASHTO M288 Class 1 geotextiles for separation and subsurface drainage. Shop Lowe's for solutions to control erosion on slopes, as well. Geotextiles. 9 0 obj To ensure the success of Method A, ensure that the bearing of rocks from one to the other follows specifications and that the use of chinking rocks is limited to filling voids. 3, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. Where applicable, inspect the footing areas and foundations for evidence of instability or areas where hydrostatic pressures may develop. Ensure that the contractor performs concrete finishing as specified and that the slope paving is cured by one of the specified methods. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. 0000012187 00000 n Temp. >> When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. endobj or call State-furnished materials and expenses, as well as supplemental work items and descriptions. Woven Stabilization and Separation Geotextiles, - Dimensions & Weights for EcoTubes Geotextile Dewatering Tubes, - Dimensions & Weights for EnviroGrid Cellular Confinement, - Material Safety Data Sheet (MSDS) - Drainboard, - Material Safety Data Sheet (MSDS) - Stratagrid, - Material Safety Data Sheet (MSDS) - Envirogrid, - Product Advantages of EcoTubes Geotextile Dewatering Tube, - Product Benefits of EcoTubes Sludge Dewatering Tubes, - Product Benefits of US Fabrics' Foundation Drains, - Product Benefits of US Fabrics' Sheet Drains, Design/Installation Guidelines; Applications, - Comparing Old Style & New Style - Strata Geogrid, - French Drain Exterior Foundation Install, - Geogrid & Welded Wire Form Inside Corner Placement, - Installation Guideline for Separation Heavy Geotextile, - Installation Guideline for Separation Medium Geotextile, - Sheet Drain Exterior Foundation Install, - Theoretical Tube Volumes & Dewatering Capabilities, - Typical Cross Section - Vegetated Reinforced Soil Slope, - Equivalent Products for Composite Drains, - Volumes & Dewatering Capabilities for EcoTubes Geotextile Dewatering Tubes, - Geogrid Quality for Finished Product and Raw Materials, - Use Woven Geotextiles Instead of Geogrids, - Municipal Waste Water & Water Treatment w/ EcoTubes, - SRW (Segmental Retaining Wall) Drainage. RG12N Nonwoven Geotextile with a 300 lbs grab tensile strength and a flow rate of 65 gallons a minute per square foot. rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. Geosynthetic Bond Breaker (Call for product. When slope protection is paid by weight, refer to the discussion of weighing and metering procedures in Section 3-902E, Weighing Equipment and Procedures, of this manual. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. %PDF-1.3 % Method A is used where the stability of the rock slope protection is considerably dependent on the manner in which the individual rocks are placed. C-15 Permeable rock jetties (fish habitat structures) C-8 C-16 Close-up of permeable rock jetty C-8 C-17 RSP tied to solid rock outcrop, natural impermeable retard (jetty) C-9 C-18 Soil-filled voids, natural vegetation C-9 C-19 Channel cut through deposited beach sand C-10 C-20 Layers of deposited sand C-10 Draw Down Device, Sediment Basin Schematic - Vert. For RSP Classes I thru VIII, use Class 8 RSP-fabric which has lower weight per unit area and it also has lower toughness (tensile x elongation, both at break) than Class 10 RSP-fabric. Soil Stabilization Matting - Slope Application, Clear Water Pipe Through Silt Fence/Super Silt Fence, Temporary Stone Outlet Structure (1 of 2, PDF only), Temporary Stone Outlet Structure (2 of 2, PDF only), Temporary Gabion Outlet Structure (1 of 2, PDF only), Temporary Gabion Outlet Structure (2 of 2, PDF only), Standard Inlet Protection (1 of 2, PDF only), Standard Inlet Protection (2 of 2, PDF only), Combination Inlet Protection (1 of 2, PDF only), Combination Inlet Protection (2 of 2, PDF only), Pipe Outlet Sediment Trap ST-I (1 of 3, PDF only), Pipe Outlet Sediment Trap ST-I (2 of 3, PDF only), Pipe Outlet Sediment Trap ST-I (3 of 3, PDF only), Stone/Riprap Outlet Sediment Trap ST-II (1 of 3, PDF only), Stone/Riprap Outlet Sediment Trap ST-II (2 of 3, PDF only), Stone/Riprap Outlet Sediment Trap ST-II (3 of 3, PDF only), Riprap Outlet Sediment Trap ST-III (1 of 3, PDF only), Riprap Outlet Sediment Trap ST-III (2 of 3, PDF only), Riprap Outlet Sediment Trap ST-III (3 of 3, PDF only), Concentric Trash Rack and Anti-Vortex Device (1 of 2, PDF only), Concentric Trash Rack and Anti-Vortex Device (2 of 2, PDF only), Types of Couplers for Corrugated Steel Pipe, Sediment Basin Schematic - Horiz. engineering fabric pinned to the slope, or both a . Fabric must be RSP fabric that complies with the class shown in the following table: Rock must be cobble, gravel, crushed gravel, crushed rock, or any combination of these. Slope Protection consists of rock, concrete, or concreted rock or slope paving ROCK SLOPE PROTECTION ROCK SHOULD DEMONSTRATE Stability: Angular shapes may be used on any planed slope Durability: Resist degradation and have a durability of 52 minimum (Caltrans) Consistency: Product is the same load after load. +NXR!ft]l|\P2. Neoloy Tough-Cells in slopes prevent erosion, enable drainage and stabilize the slope to provide a green surface cover. This work consists of protecting slopes, channels, and gutters with riprap, interlock precast concrete blocks, concrete, grouted items, tied concrete block mats, crushed aggregate, or rock items. endstream Contact our sales team at 1-863-270-8118 to discuss your erosion control requirements. (see Riprap Slope Protection Worksheet). 0000002313 00000 n 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. 0000004037 00000 n The method for placing rock will either be Method A or Method B, whichever the contract designates, as discussed under Section 4-7203A, Rock Slope Protection, earlier in this section. If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. Enter the item description of the code you wish to search for: requirements. Retaining Walls & Slope Stability Complete the Patio or Walkway 6. Standard contract items and descriptions for Caltrans projects. Barrier Landscape Edging & Paver Edging 6'/8. Properly designed slope protection and stabilization has to include two components: a vegetational-biological and a mechanical-structural component. The latest list of Item Codes is available from HQ HToL[U?Ayb:V;%Y48{RMLIlq&+J[mNN?J;A? Observe construction to ensure the contractor does the placing, finishing, and curing as specified. US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. Place a layer (six inch minimum) of If the slope is steeper than 2:1, do not use rounded boulders and cobbles. DM[2TI=lGQx7 UoFK1: V;39LFOr7LxPF{BL3he6X^@v[QhWiF!l3F) RTIBfx0.T F%n3h80Q,`[2xa%VLP /WD@j rK .9{N[#o/Fad#OK6YeqsyHl2M)V]/Nf(V?!1Oaw)fM 8JG)31m. e&C+uPaN.%y5*>EJ9gcD,i4E|+I,b0 f)#H+E m:(B(u1b)Q%>cayKh 0SYB@RenkJ1HJ b#'mYtQS1 HU" 2`VoVsB: ~',2g(5DZsHrxUR5~4 4_ {YNjTjdV \ (aazR#;@1""(*$4"!f)G(J For details about concrete production, review Section 4-90, Concrete, of this manual. endobj <>/Font<>>>/Fields[]>> There are three material gra requirements based on required rock layer dation thicknesses. If necessary, order additional weep holes. On a cut slope, this could be due to . This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). Center splash basin . Rock Slope Protection Fabric, used in slope stabilization projects (see Technical Note on Rock Slope Protection / Rip Rap) When required by the Project Engineer, a Certificate of Compliance for each type of fabric being used should be issued by the supplier and furnished to the Engineer. Take care not to tear the filter fabric during installation. 10 0 obj All items. 3, METHOD B) (TON), STRUCTURE EXCAVATION (ROCK SLOPE PROTECTION) (ENGMET). Fabric used for rock slope protection, temporary construction roadways, separation, stabilization, reinforcement, drainage, and erosion control. L Earth Compacted Fabric Engineering 6'' 1'-0'' centers Staples at 6'' 2'' 6'' (Rock Splash Basin) TYPE 4 1 2 (Rock Slope Protection) TYPE 5 Staples at 12 inch centers. To respond to the different problems associated with instability of rock faces, Geofabrics also has a broad range of independently verified rockfall mitigation systems. in a MS Word document format from the Vegetation (see . Note any changes that may have occurred between the preliminary design studies and the start of construction. @>|0fWp^,Y/T!*gprE."8hjjJ7kUfmYxTsX"CfU2TL]Gdb_Kg,GA/`U)H!hkJARD[R` This information is to be used only as a guide. GHnBc__'h1'u]SO0P+R&yGeJ$FP?cSp28 1}9AQ #T6Bc*)_vU"]T hY# 0000004014 00000 n Ensure that the contractor places the fabric before placing the rock slope protection. <>/XObject<>/Properties<>>>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> Ensure that rocks of the specified sizes and shapes are being used. 3 0 obj Ensure concrete is cured by one of the specified methods. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes. Erosion control is an important element of successful slope protection. Thishandbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. 1 0 obj Keep records up to date. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. Fabric Class Class Largest rock gradation class used in slope protection 8 Classes I-VIII 10 Classes IX-XI Replace the 1st paragraph of section 73-3.028 with: Rocks for concreted-rock slope protection must comply with the gradation shown in the following table: Concreted-Rock Gradation . When slope protection is paid by volume, review the plans and quantity calculations in the resident engineers file to determine if there is sufficient detail and accuracy to be used in the project records. At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. TAR_%R5Wa%*x4ux-x5d1c iU:v9b!KXGcFK 1fN2 t K! The contract plans will designate the required rock layer thickness for each location. Obtain initial samples and have them tested for the specified attributes. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. 1800 Washington Blvd., Baltimore, MD 21230, Stormwater, Dam Safety, and Flood Management Home, Plan Review for State and Federal Projects. mum slope of two feet of horizontal distance for one foot of vertical rise. endobj Copyright Maryland.gov. 2019-07-30T13:47:33-04:00 Transportation Specifications Section 96-1.02I for Rock Slope Protection Fabric, Class 8, nonwoven geotextile. For RSP Classes I thru VIII, use Class 8 RSP-fabric which has lower weight per unit area and it also has lower toughness (tensile x elongation, both at break) than Class 10 RSP-fabric. If your 20'x10' patio is to have a 6" base, then you should excavate a total area of 21' (20' +6" +6") by 11' (10' +6" +6"). 2019-07-30T13:44:04-04:00 More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! TenCate develops and produces materials that function to increase performance, reduce costs and deliver measurable results by working with our customers to provide advanced solutions. Without proper slope protection, a serious erosion problem known as "beaching" can develop on the upstream slope. Also, ensure the contractor does not drop rock into place; otherwise, cracking or breaking may occur. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN 1 0 obj When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. Products with a are available to meet BABA (Build America, Buy America) requirements. 0000014254 00000 n 0000002336 00000 n application/pdf Project Details For EA 04-0A0204 ITEM NUMBER 729011 ROCK SLOPE PROTECTION FABRIC (CLASS 8) Bid Opening Date (mm-dd-yyyy): 04-21-2021 District-County-Route-Postmile: 04-SON-1-R15./R15.7 Quantity: 220 SQYD Unit Price: $21.50 Total Price: Type of work: REALIGN ROADWAY Click on the to send the number to the Copies of these details are made available below in both Adobe Portable Document Format(PDF) and AUTOCAD Drawing (DWG) file formats. 2019-07-30T13:47:33-04:00 The method is particularly adaptable to locations where high-velocity flow is not detrimental, but desirable, and the hydraulic efficiency of smooth surfaces is important. Chapter 4: Construction Details, Section 72: Slope Protection, Direction of flow and angle of impingement at various water stages, Capability of adjacent soil types to resist erosion from wash and eddy currents. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. Use all suitable material in the work. Contact Us /Length 5601 endobj Order corrective work when necessary. Method B is not restrictive with respect to the placement of individual rocks. <> Any springs or water courses that might affect the stability of the design. endobj Mirafi 135N, 140NL and 140NC are lighter weight versions of Mirafi 140N . AASHTO is typical mass of 4.1 sy/oz. <> 0000000871 00000 n In 2007, the FAA approved construction of a new center field taxiway (Taxiway Mike) to alleviate airfield congestion. endobj 0000000928 00000 n In making such a decision, observe the following: Take pictures to document existing conditions and verify that Form CEM-3101, Notice of Materials to Be Used, includes the materials for slope protection. These supersede the previous Caltrans Riprap Sizes. EZw5'dr=`j+2\8:U.|V,%)~h/X8ps 7 0 obj 2 0 obj Mirafi N-Series nonwoven polypropylene geotextiles are used for soil separation, drainage in Transportation, Building Site, and Water Infrastructure projects such as subsurface drainage, permanent erosion control and roadway separation applications.