<> The heavier fabrics provide more strength and are less likely to tear when large class II or Class III boulders are placed on them. Fabric used for rock slope protection, temporary construction roadways, separation, stabilization, reinforcement, drainage, and erosion control. For Type R, F, or Common stone riprap, provide Type 2 filter fabric when shown on the plans. If you have any questions about the consistency of the gabions, you may also order the unit weight to be verified during the course of the work. 0000007029 00000 n 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. The bid item list and plans will specify which type of slope protection is to be performed. JavaScript is required to use content on this page. 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. The Maryland General Assemblys Office of Legislative Audits operates a toll-free fraud hotline to receive allegations of fraud and/or abuse of State government resources. Whether you're speeding down a slope or cycling uphill, the F5 can be worn in a number of ways to fit your training and needs. Of the various types of instability problems, foundation failures are the most serious and most common. Retaining Walls & Slope Stability construction contract standards page. 0000007052 00000 n Neoloy Tough-Cells in slopes prevent erosion, enable drainage and stabilize the slope to provide a green surface cover. Use the size and composition of yarn that is recommended by the fabric manufacturer. 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. On a cut slope, this could be due to . B. Cables. Refer to Section 4-96, Geosynthetics, of this manual for guidelines for inspecting and accepting rock slope protection fabric. This handbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. Copies of these details are made available below in both Adobe Portable Document Format (PDF) and AUTOCAD Drawing (DWG) file formats. Properly designed and planted vegetative covers play Click on the to send the number to the 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. Source: Caltran Highway Design Manual, Chapter 870 If you have any questions or would like to learn more, please contact us. Ensure that the contractor places the fabric before placing the rock slope protection. The finish surface must be roughened by brushing to expose rocks. >> 0000012468 00000 n Ensure the equipment used during spreading does not crack the rock. EZw5'dr=`j+2\8:U.|V,%)~h/X8ps {.sAewh[w#Iv#W6f" $JOPf/W%%XKK&A~b ?nfY_iu"m]HDwP) Rp Click on the product name for a data sheet. 2019-07-30T13:47:33-04:00 (One call ordering and delivery). RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. The concrete slope protection method consists of paving the embankment with portland cement concrete. Ensure that rocks of the specified sizes and shapes are being used. Contract Cost Data Project Details. 0000000871 00000 n Obtain rock samples for acceptance tests. For RSP Classes IX thru XI, use Class 10 RSP-fabric. To better control the contractors selection of rocks for placing, ensure the contractor paints tonnage on large rocks used in foundation construction. +NXR!ft]l|\P2. Ensure existing shrubs and trees are protected so that they continue to anchor the surrounding soil. The small-rock slope protection method consists of excavating and backfilling the footing trench, placing rock slope protection fabric as shown, and placing small rocks on the slope. 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. 463 0 obj << /Linearized 1 /O 465 /H [ 928 1116 ] /L 999132 /E 15929 /N 109 /T 989753 >> endobj xref 463 26 0000000016 00000 n Rock Slope Protection practice is intended for slopes too unstable for revegetation practices alone. For details about concrete production, review Section 4-90, Concrete, of this manual. endobj The gabions are placed on filter fabric as detailed in the plans and specifications. If extensive slope protection problems are anticipated or encountered during construction, refer these to the design engineer and the project manager, who may in turn obtain the advice of the Caltrans Bank and Shore Protection Committee.. There are three material gradation requirements based on required rock layer thicknesses. endobj 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. State-furnished materials and expenses, as well as supplemental work items and descriptions. 0000002313 00000 n 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. Contact Us Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. The Standard Specifications provide two methods of placement for this type of protection: Method A and Method B. This translates to a 0.75H: 1V incline and is shown below. Use 5 to 7 st 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 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. Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. "QamV(Z3VL> US 160NW is a nonwoven needlepunched geotextile made of 100% polypropylene staple filaments. Decide whether an adequate number has been provided for the particular installation. The contract will identify the designated method. 0000002044 00000 n 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. 0000012187 00000 n Method B is not restrictive with respect to the placement of individual rocks. 99 (30% off) Best Selling Saucony Flat Mask By mrhzid $8. Mirafi N-Series Product Description Sheet. For measuring concrete or shotcrete, refer to Sections 4-90, Concrete, or 4-53, Shotcrete, of this manual. 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 <> application/pdf 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. 3. 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 Also, ensure the contractor does not drop rock into place; otherwise, cracking or breaking may occur. TAR_%R5Wa%*x4ux-x5d1c iU:v9b!KXGcFK 1fN2 t K! 9 0 obj 8 0 obj Rock Channel Protection Paved Gutter 601.13 Basis of Payment 601.01 Description. 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. - Shoreline Protection with EcoTubes&trade; CALTRANS does not have an APL/QPL for fabrics. Before construction of any type of slope protection, review the plans, Standard Specifications, special provisions, any pertinent preliminary test data, and the location of the installation. Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. Barrier Landscape Edging & Paver Edging 6'/8. 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. 1 mum slope of two feet of horizontal distance for one foot of vertical rise. Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. 0000015681 00000 n 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"). Review the plans for the location and number of weep holes. Weight will vary based on density of rock available for the project. 0000013346 00000 n Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. Angular shaped rock may be used on any planned slope. % %PDF-1.3 % If the slope is steeper than 2:1, do not use rounded boulders and cobbles. item code description; 729012 rock slope protection fabric (class 10) 729011 rock slope protection fabric (class 8) 723220 concreted-rock slope protection (1/4 t, class v, method b) (ton) Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. 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. 1. Contact your local TenCate Geosynthetic representative for the proper use and specification of these products. Intermittent inspection of placement of slope protection, slope paving, and fabric operations. 7 0 obj :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 AASHTO is typical mass of 4.1 sy/oz. endobj Erosion control is an important element of successful slope protection. Technical Support available for assistance. Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. The contract plans will designate the required rock layer thickness for each location. <>stream 1, METHOD B) (TON), ROCK SLOPE PROTECTION (NO. 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. To provide the desired cleanliness, the contractor may need to sluice the rock or facing. main search page where you can specify additional parameters. If the rock contains an excess of fines or inadequate voids, the desired results may be impossible to obtain. 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. > Contact our sales team at 1-863-270-8118 to discuss your erosion control requirements. 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. Place a layer (six inch minimum) of Protection involves constructing a heavy mass of smaller rocks bound together by concrete. endstream More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! 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. Review contractors verification of unit weight of rock-filled gabions. The maximum height of the vertica l lower portions 3.5 feet. Mirafi 180N is a moderate weight nonwoven geotextile that meets AASHTO M288 Class 1 geotextiles for separation and subsurface drainage. Temp. 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. 1 0 obj For details about concrete production, review Section 4-90, Concrete, of this manual. There are three material gra requirements based on required rock layer dation thicknesses. 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. with a minimum of 50% of the stones . 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. Mirafi 135N, 140NL and 140NC are lighter weight versions of Mirafi 140N . Slope Protection consists of rock, concrete, or concreted rock or slope paving, ROCK SLOPE PROTECTION ROCK SHOULD DEMONSTRATE, THE PLACEMENT METHODS DESIGNATED BY CALTRANS, ADVANTAGES OF USING RIP RAP OR STONE PROTECTION FROM WILSON QUARRY (AROMAS), Make certain of the Product RequiredProject Service Requirements, Specifying Agency (Caltrans, Green Book, Army Corp or Other), Special Provisions addressing additional specifications, Certification Required (Submittals) Caltrans, Army Corps, other agency or engineer, Quantity Required (Specific GravityConversion Tons to Cubic Yards), Product Availability (Available when required, can handle Daily Shipping Requirements), The Reputation of your Supplier and their Products & Services, 100% Crushed Granite (Provides Superior Stability and Durability), Many different Rip Rap types available:All Caltrans Classes and Sizes, High Daily Production and Shipping Capacity (Can Handle Large & Small Jobs), Graniterock can provide delivery to your jobsite if desired. 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. 0000002336 00000 n At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. Products with a are available to meet BABA (Build America, Buy America) requirements. Test panels may be specified in the special provisions. (You may enter part of the word or the whole phrase). Check the area to be protected to ensure that the required expansion joints are in place. There are three material gradation requirements based on required rock layer thicknesses. /Length 5601 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. Angular shaped rock may be used on any planned slope. US Fabrics is proud to serve the geotextile needs of the State of Califronia, including: Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, Long Beach, Oakland, Bakersfield, Anaheim, Santa Ana, Riverside, Stockton, Chula Vista, Fremont, Irvine, San Bernardino, Modesto, Oxnard, Fontana, Moreno Valley, Glendale, Huntington Beach, Santa Clarita, Garden Grove, Santa Rosa, Oceanside, Rancho Cucamonga, Ontario, Lancaster, Elk Grove, Palmdale, Corona, Salinas, Pomona, Torrance, Hayward, Escondido, Sunnyvale, Pasadena, Fullerton, Orange, Thousand Oaks, Visalia, Simi Valley, Concord, Roseville, Santa Clara, Vallejo, Victorville, El Monte, Berkeley, Downey, Costa Mesa, Inglewood, Ventura, West Covina, Norwalk, Carlsbad, Fairfield, Richmond, Murrieta, Burbank, Antioch, Daly City, Temecul and all other areas of California. <>/XObject<>/Properties<>>>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> 5 0 obj Click it again to reverse the order. 5. 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. endobj Close observation is required during rock placement to detect any damage to the fabric. 1 0 obj %PDF-1.4 {s9y^ The best slope protection type for a given situation depends on the conditions where the installation is to be made, availability of protection material, cost of the various types, and protection desired. xZrFou D[&! << If the fabric is joined by stitched seams, stitch with contrasting colored yarn. Rock grading and quality requirements per Standard Specifications. Note any changes that may have occurred between the preliminary design studies and the start of construction. A geotextile is typically defined as any permeable textile material used to increase soil stability, provide erosion control or aid in drainage. Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. The equilibrium soil-to-geotextile system that allows for adequate movement of a liquidin the plane of the geotextile over the service lifetime of the application. Values shown are based on Table 873.3A dimensions and an assumed specific gravity of 2.65. 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. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. stream XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. . 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. Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may =w (j($M/!bMbo,iDjQL1{L! @>|0fWp^,Y/T!*gprE."8hjjJ7kUfmYxTsX"CfU2TL]Gdb_Kg,GA/`U)H!hkJARD[R` The color shall be black unless otherwise specified in the contract documents. 0000005658 00000 n (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes. Consult engineer to ensure applicable design requirements are met. Resident engineers should be familiar with the material contained in Chapters 870, Bank ProtectionErosion Control, and 880, "Shore Protection," of the Highway Design Manual. For RSP Classes I thru VIII, use Class 8 RSP-fabric which has lower weight per unit area and it also has lower toughness (tensile x elongation, both at break) than Class 10 RSP-fabric. 72-2.02B Fabric Fabric must be RSP fabric that complies with the class shown in the following table: 72-4 SMALL-ROCK SLOPE PROTECTION 72-4.02 MATERIALS Roll size is 15'x300 Equivalent to Mirafi 1120NC or Skaps GT112 (Click here for spec) This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). For measurement and payment, do the following: Chapter 1 - Caltrans Construction Organization, CalOES: Power Outage and Fire Recovery Resources. 1800 Washington Blvd., Baltimore, MD 21230, Stormwater, Dam Safety, and Flood Management Home, Plan Review for State and Federal Projects. Class 2 is the default Class for M288 applications. <>/Font<>>>/Fields[]>> When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. The equilibrium soil-to-geotextile system that allows for adequate movement of a liquid across the plane of the geotextile with limited soil loss over the service lifetime of the application. K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. in a MS Word document format from the A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. 1, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. The plans indicate the minimum depths of foundations. trailer << /Size 489 /Info 438 0 R /Root 464 0 R /Prev 989742 /ID[<23d8c9b814a334ef8bf252da6b923edc><23d8c9b814a334ef8bf252da6b923edc>] >> startxref 0 %%EOF 464 0 obj << /Pages 445 0 R /Type /Catalog >> endobj 487 0 obj << /S 1440 /Filter /FlateDecode /Length 488 0 R >> stream