Without proper slope protection, a serious erosion problem known as "beaching" can develop on the upstream slope. Benchmark inspection of sampling and testing of rocks. The plans will designate which type applies at each location. @>|0fWp^,Y/T!*gprE."8hjjJ7kUfmYxTsX"CfU2TL]Gdb_Kg,GA/`U)H!hkJARD[R` >> The contract will identify the designated method. 0000015681 00000 n 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. KEwAx{N*$J }COpU?s{bs. To provide the desired cleanliness, the contractor may need to sluice the rock or facing. Consult engineer to ensure applicable design requirements are met. 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. Decide whether modifications are necessary as a result of changed conditions. 0000011079 00000 n 2 0 obj Your search for great running gear starts and ends with us. Placement of Bedding Material 1. Soil Stabilization Matting - Slope Application, Perm. GHnBc__'h1'u]SO0P+R&yGeJ$FP?cSp28 1}9AQ #T6Bc*)_vU"]T hY# endstream When exposed aggregate slope paving is specified, ensure any concrete set retarders are used in accordance with manufacturer instructions. This handbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. /Length 5601 /Type/ExtGState State-furnished materials and expenses, as well as supplemental work items and descriptions. Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources. 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. They are designed to protect against raveling-type rockfall that involves small-volume slope failures (up to about 7.6 m3 or 10 yd3) or blocks up to 1.5 m (5 ft), depending on the strength of the mesh used (Muhunthan et al. Be sure to consult your local project engineer or construction professional about the rock sizing and particular . Erosion control devices provide direct protection to the soil surface therefore, are considered one the best measures for preventing erosion. B. Cables. Geotextiles. Copyright 2023 TenCate Geosynthetics Americas. Note any changes that may have occurred between the preliminary design studies and the start of construction. AASHTO is typical mass of 4.1 sy/oz.. A geotextile is typically defined as any permeable textile material used to increase soil stability, provide erosion control or aid in drainage. %PDF-1.3 % . 0000013346 00000 n 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. You can also lay bags of sand along problem areas in your landscape to keep soil from washing away and to redirect water. This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. 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. These supersede the previous Caltrans Riprap Sizes. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes. For measuring concrete or shotcrete, refer to Sections 4-90, Concrete, or 4-53, Shotcrete, of this manual. 0000005681 00000 n 4 0 obj (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. 0000009704 00000 n More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! The contractor must also ensure the construction of adequate returns and keys at the ends. 0000009975 00000 n YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. endobj - Shoreline Protection with EcoTubes&trade; CALTRANS does not have an APL/QPL for fabrics. At TenCate ourgoal is your success. Soil Stabilization Matting - Channel Application, Perm. 5 0 obj BMP040 "rock slope protection (no fabric)" as applicable. Other Names Rock Slope Protection. Contact our sales team at 1-863-270-8118 to discuss your erosion control requirements. There are three material gradation requirements based on required rock layer thicknesses. Decide whether an adequate number has been provided for the particular installation. conforming to the requirements of 710-03 Vinyl Coated Steel Fence Fabric, Class A Wire Diameter, except color. 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. All items. 1 0 obj endobj 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"). Use all suitable material in the work. Use 5 to 7 st PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f endobj The following common types of slope protection are covered in this section: Other protective devices are used in conjunction with highway construction, and when used, they are included in the contracts special provisions. They blanket the soil, protecting it from wind and water forces. Angular shaped rock may be used on any planned slope. The heavier fabrics provide more strength and are less likely to tear when large class II or Class III boulders are placed on them. Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. Properly designed slope protection and stabilization has to include two components: a vegetational-biological and a mechanical-structural component. You may be trying to access this site from a secured browser on the server. RG12N Nonwoven Geotextile with a 300 lbs grab tensile strength and a flow rate of 65 gallons a minute per square foot. When changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. 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. The gabions are placed on filter fabric as detailed in the plans and specifications. Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may the contract cost database using the most recent year of data. The Difference Mirafi N-Series Nonwoven Geotextiles Make: The placement of a flexible, porous geotextile between dissimilar materials so that the integrity and intended functions of both materials remain intact or are improved. 0000012187 00000 n (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. The color shall be black unless otherwise specified in the contract documents. Transportation Specifications Section 96-1.02I for Rock Slope Protection Fabric, Class 8, nonwoven geotextile. 0000014231 00000 n Riprap is a permanent layer of large, angular stone, cobbles, or boulders typically used to armor, stabilize, and protect the soil surface against erosion and scour in areas of concentrated flow or wave energy. 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. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. 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. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. FDM 10-10-3 1 When evidence exists that the foundation depth is inadequate, obtain both the design and hydraulics engineers concurrence with a change order to deepen the foundation. It consists of a layer of very large stones interlocked together and acts as a barrier on slopes that are unstable because of seepage problems or in areas that are receiving a large concentrated flow. Rock mesh slope protection is a technique to control rockfalls . To better control the contractors selection of rocks for placing, ensure the contractor paints tonnage on large rocks used in foundation construction. Copies of these details are made available below in both Adobe Portable Document Format (PDF) and AUTOCAD Drawing (DWG) file formats. There are three material gradation requirements based on required rock layer thicknesses. <>/Font<>>>/Fields[]>> <> Thishandbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. Temp. Angular shaped rock may be used on any planned slope. Use the size and composition of yarn that is recommended by the fabric manufacturer. Shop Lowe's for solutions to control erosion on slopes, as well. cIP=L ?L-o'OfE;9'WgIBdysw>vOo#g 8L3f*7Mnd*3cdLy&v~;6s8;)9Q"SE8a+3/>svm^}+7Ea8IG01nY5y7mxJ]X9sGjv][ppYdv r=0EVPTO(Xam -j9 WYY5:F"l9o&l:dyg^0GXoZgm[\H2#RrlXpZd`CAlwE.Sz.BuTiqT;E@m3I~`km&yeF 6'' min. Close observation is required during rock placement to detect any damage to the fabric. The contract plans will designate the required rock layer thickness for each location. Ensure the equipment used during spreading does not crack the rock. You may check the size of rock by roughly measuring the size and converting the volume to mass. For RSP Classes IX thru XI, use Class 10 RSP-fabric. << California Department of Transportation Rock Slope Armor is a layer of rock, such as ditch lining rock, cobble rock, concrete rubble, or riprap, which is hand or mechanically placed on an erodible soil slope. << rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . Geotextiles have been in use for thousands of years dating back to the Egyptian Pharaohs. Ensure the timber spacers are of the required material and spaced as planned. Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. 6 0 obj Enter the item description of the code you wish to search for: Review the plans for the location and number of weep holes. This information is to be used only as a guide. Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. Fabric used for rock slope protection, temporary construction roadways, separation, stabilization, reinforcement, drainage, and erosion control. Please enable JavaScript in your browser. Polypropylene is stable within a pH range of 2 to 13. Provide galvanized guide rail cables a minimum 19 mm in diameter, consisting . 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 Click on a heading to sort by that heading. The maximum height of the vertica l lower portions 3.5 feet. 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. Take care not to tear the filter fabric during installation. 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. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. 0000012468 00000 n 0000000871 00000 n If the rock contains an excess of fines or inadequate voids, the desired results may be impossible to obtain. 9 0 obj {s9y^ <> On a cut slope, this could be due to . mum slope of two feet of horizontal distance for one foot of vertical rise. 7 0 obj Contact your local TenCate Geosynthetic representative for the proper use and specification of these products. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. Need quick pricing on Erosion Control Fabric? At the start of gabion placement, require the contractor to verify the minimum unit weight of the gabions to ensure it meets specifications. 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. Our TerraTex brand offers full-spectrum performance delivery - groundwater filtration and drainage, soil separation and reinforcement, geomembrane protection, sprayed liner substrate, oil-and-gas industry drilling pad and access-road enhancement, as well as pavement overlay and bond-breaker applications. In 2007, the FAA approved construction of a new center field taxiway (Taxiway Mike) to alleviate airfield congestion. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. Class E Revetment Erosion Stone or Class E Revetment Erosion Stone or A A Engineering Fabric Ditch Bottom 2' 2' Anchor Slot W 6'' min. 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. The samples will be crushed in the laboratory to sizes needed to perform tests. NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. Center splash basin . The devices include ground covers and channel liners such as: 1. Slope paving is a broader term that covers a variety of methods for paving slopes, including colored slope paving, exposed aggregate slope paving, and slope paving with concrete pavers. Soil Stabilization Matting - Channel Application, Temp. If the rock layer is shown as 7 inches thick, comply with grading shown in the following table: If the rock layer is shown as 5 inches thick, comply with the grading shown in the following table: If the rock layer is shown as 4-inches thick, comply with grading shown in the following table: Granular material must contain at least 90 percent crushed particles when tested under California Test 205. The plans indicate the minimum depths of foundations. . Observe closely during rock placement to detect any damage to the fabric. <>stream Suggested levels of inspection for slope protection activities are: Ensure the contractor is actively performing quality control on placing slope protection and slope paving throughout the operations. Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. The latest list of Item Codes is available from HQ Ensure existing shrubs and trees are protected so that they continue to anchor the surrounding soil. endobj Standard contract items and descriptions for Caltrans projects. EZw5'dr=`j+2\8:U.|V,%)~h/X8ps When slope paving with concrete pavers is specified, ensure the special provision requirements are met. Where applicable, inspect the footing areas and foundations for evidence of instability or areas where hydrostatic pressures may develop. The method for placing rock will either be Method A or Method B, whichever the contract designates, as discussed in Section 4-7203A, Rock Slope Protection, of this manual. At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. Geosynthetic Bond Breaker (Call for product. All rights reserved. with a minimum of 50% of the stones . These products were developed to meet specific agency (DOTs, MTOs, etc.) :t4NV]j{/mtqF*sx[%M 5%(/%(Z-F|[atK5[~{a~EwDCV:/#K)f~7*RsAnnJa>Jg-m^>\V7EOG3o?nGYIFze/l( I!&VXo]mm#7I0:EK7_LFwek Resident engineers should be familiar with the material contained in Chapters 870, Bank ProtectionErosion Control, and 880, "Shore Protection," of the Highway Design Manual. 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. 0000014254 00000 n This has been superseded by Caltrans New Riprap Classes. If using geotextile fabric, place on the smoothed foundation, overlap the edges at least 12 inches and secure with anchor pins spaced every three feet along the overlap. Verify the types of measurements and records necessary to support payment for the work. Complete the Patio or Walkway 6. Test panels may be specified in the special provisions. Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. Lap 6'' min. Properly designed and planted vegetative covers play <> JavaScript is required to use content on this page. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. Start by choosing whether your patio is a **single rectangle** or if it has a different shape, in which case you.

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