2 0 obj Temp. Hydraulic Design Manual: Embankment Protection - Texas Department of endobj Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources. endobj Geotextiles. If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. rock slope protection fabric (class 8) 591200 rock stain: 780450 rock stain: 720110 small-rock slope protection: 192032 structure excavation (rock slope protection) (engmet) +NXR!ft]l|\P2. Contact Us Use 5 to 7 st 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. If the fabric is joined by stitched seams, stitch with contrasting colored yarn. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. 0000009704 00000 n - Shoreline Protection with EcoTubes™ CALTRANS does not have an APL/QPL for fabrics. :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 RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. Center splash basin . 0000002313 00000 n <> 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. 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. PDF BMP-041 Rock Slope Protection 4-6-12 - Tahoe BMP endobj << The contract plans will designate the required rock layer thickness for each location. HToL[U?Ayb:V;%Y48{RMLIlq&+J[mNN?J;A? Ensure the equipment used during spreading does not crack the rock. 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. The plans indicate the minimum depths of foundations. 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. 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. "QamV(Z3VL> 0000008354 00000 n 8 0 obj There are three material gradation requirements based on required rock layer thicknesses. Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. PDF Riprap Slope Protection Observe closely during rock placement to detect any damage to the fabric. 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. Polypropylene is stable within a pH range of 2 to 13. 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 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. Need quick pricing on Erosion Control Fabric? are available to meet BABA (Build America, Buy America) requirements. (see Riprap Slope Protection Worksheet). Decide whether modifications are necessary as a result of changed conditions. Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may 10 0 obj Your search for great running gear starts and ends with us. Contact your local TenCate Geosynthetic representative for the proper use and specification of these products. At TenCate ourgoal is your success. 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. Keep records up to date. For RSP Classes IX thru XI, use Class 10 RSP-fabric. 0000004037 00000 n Ensure existing shrubs and trees are protected so that they continue to anchor the surrounding soil. (For large riprap, consider a four inch layer of sand to protect the . >> You can also lay bags of sand along problem areas in your landscape to keep soil from washing away and to redirect water. Before placement of the broken concrete, inspect the material and be sure the reinforcement has been removed flush to the surface of concrete. (One call ordering and delivery). Roll size is 15'x300 Equivalent to Mirafi 1120NC or Skaps GT112 (Click here for spec) 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. 0000013368 00000 n Mirafi 140N is a lightweight non woven geotextile that meets AASHTO M288 Class 3 geotextiles for separation and subsurface drainage. 0000012468 00000 n 0000013346 00000 n 5. The challenge was to construct a new taxiway over areas that were built on tidal flats and land reclaimed from Boston Harbor. Copies of these details are made available below in both Adobe Portable Document Format(PDF) and AUTOCAD Drawing (DWG) file formats. 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. AASHTO is typical mass of 4.1 sy/oz.. Nominal RSP class by median particle diameterb Nominal median 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. This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. 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 . 2005), although maintenance considerations may serve to reduce this maximum size. Barrier Landscape Edging & Paver Edging 6'/8. Rock Channel Protection Paved Gutter 601.13 Basis of Payment 601.01 Description. Proven Product Track Record (Aggregate is widely accepted and approved)Wilson Quarry Products are recognized as the Industry Standard in the Monterey Bay Area, Product meets and is Certified for Army Corp Projects. %PDF-1.4 % 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. Please enable JavaScript in your browser. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. B. Cables. { , IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN. For measuring concrete or shotcrete, refer to Sections 4-90, Concrete, or 4-53, Shotcrete, of this manual. To compensate for the lack of flexibility in the completed structure, ensure an adequate foundation lies below this type of protection. If the slope is steeper than 2:1, do not use rounded boulders and cobbles. The contractor must also ensure the construction of adequate returns and keys at the ends. 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. Permeable Aggregate Materials and Filter Fabrics - Graniterock Slope protection is usually needed to protect the upstream slope against erosion due to wave action. Review the plans for the location and number of weep holes. 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. 3, METHOD B) (TON), STRUCTURE EXCAVATION (ROCK SLOPE PROTECTION) (ENGMET). Angular shaped rock may be used on any planned slope. 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. uuid:30dd8676-a64b-4579-9ccf-fc82965d356f YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. 2019-07-30T13:47:33-04:00 PDF Chapter 4 Construction Details - California The color shall be black unless otherwise specified in the contract documents. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 Order corrective work when necessary. Geotextiles have been in use for thousands of years dating back to the Egyptian Pharaohs. 1 PDF California Bank and Shore Rock Slope Protection Design PDF RIPRAP - Texas Department of Transportation com routes make excellent running trails for serious runners and casual joggers, alike. endobj Lap 6'' min. Copyright Maryland.gov. NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. The chart below lists US Fabrics' geosynthetics meeting CALTRANS specifications. 0000014254 00000 n endobj If the rock contains an excess of fines or inadequate voids, the desired results may be impossible to obtain. 0000011079 00000 n Erosion prevention practices - Riprap - Minnesota Stormwater Manual Riprap is typically placed along graded ditch, channel, and shoreline banks over geotextile, which prevents erosional undercutting. PDF RG80NC Nonwoven Geotextile for Rock Slope Protection Class 8 Certification K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. Protection involves constructing a heavy mass of smaller rocks bound together by concrete. concreted-rock slope protection (1/2 t, class vii, method b) (ton) 723215 concreted-rock slope protection (1/4 t, class v, method b) (cy) 723220 concreted-rock slope protection (1/4 t, class v, method b) (ton) 729011 rock slope protection fabric (class 8) 729012 rock slope protection fabric (class 10) 750020 rigid rail fall protection system Close observation is required during rock placement to detect any damage to the fabric. Click on a heading to sort by that heading. 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 plans will designate which type applies at each location. The gabion method consists of placing wire mesh box-shaped baskets filled onsite with hard, durable rocks. Smooth the graded foundation. Nonwoven Geotextile Fabrics Applicability Rock Slope Armor is applicable to: Slopes where unanticipated flows are encountered. The samples will be crushed in the laboratory to sizes needed to perform tests. 1 0 obj Consult engineer to ensure applicable design requirements are met. << Design and construction application of concrete canvas for slope protection Thishandbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. <>stream Slopes & Walls | Geofabrics Products with a are available to meet BABA (Build America, Buy America) requirements. Place a layer (six inch minimum) of California Department Of Transportation: Item Code Search 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. Obtain initial samples and have them tested for the specified attributes. Copyright 2023 TenCate Geosynthetics Americas. Soil Stabilization Matting - Channel Application, Perm. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. To better control the contractors selection of rocks for placing, ensure the contractor paints tonnage on large rocks used in foundation construction. Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. US 160NW - US Fabrics When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. PDF Facilities Development Manual Wisconsin Department of Transportation 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. They blanket the soil, protecting it from wind and water forces. All rights reserved. endobj 0000002044 00000 n Natural Resources & Energy Infrastructure, Energy - Power Generation - Renewables - Solar, Energy - Power Generation - Renewables - Wind. 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. PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f 0000007029 00000 n Test panels may be specified in the special provisions. Shoreline Erosion Control Fabric Pro Fabric Supply Technical Support available for assistance. Take the following steps when inspecting the work and materials for slope protection: In addition to the general functions discussed above, the following items apply to specific types of slope protection. This has been superseded by Caltrans New Riprap Classes. Properly designed and planted vegetative covers play 0000009682 00000 n 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. ITEM 601 SLOPE AND CHANNEL PROTECTION - Pages Geotextiles - Products - US Fabrics 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. Upstream Slope Protection | Association of State Dam Safety When slope paving with concrete pavers is specified, ensure the special provision requirements are met. RG12N Nonwoven Geotextile with a 300 lbs grab tensile strength and a flow rate of 65 gallons a minute per square foot. For Type R, F, or Common stone riprap, provide Type 2 filter fabric when shown on the plans. 2. 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. >> Intermittent inspection of placement of slope protection, slope paving, and fabric operations. Complete the Patio or Walkway 6. The latest list of Item Codes is available from HQ Slope Erosion Control | PRS Geo-Technologies 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 Mirafi 180N is a moderate weight nonwoven geotextile that meets AASHTO M288 Class 1 geotextiles for separation and subsurface drainage. US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. When specified, ensure coloring is added to the concrete. 0000005658 00000 n This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). Title: SECTION 212 ROCK SLOPE REINFORCEMENT AND CATCHMENT SYSTEMS Be sure to consult your local project engineer or construction professional about the rock sizing and particular . Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! /Filter/FlateDecode 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 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) 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. Temporary structures shall be left in place until adequate vegetation and the permanent . Class 2 is the default Class for M288 applications. 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. Details from the 2011 Maryland Standards and Specifications California - Geotextiles & DOT Specifications - US Fabrics FDM 10-10-3 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"). The Standard Specifications provide two methods of placement for this type of protection: Method A and Method B. Copyright 2007 State of California, (You may enter part of the word or the whole phrase), 1.2 M CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET) (METRIC), 1.5 M CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET) (METRIC), 1.8 M CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET) (METRIC), 108" CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET), 2.1 M CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET) (METRIC), 2.4 M CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET) (METRIC), 24" CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET), 48" CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET), 60" CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET), 600 MM CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET) (METRIC), 72" CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET), 84" CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET), 96" CAST-IN-DRILLED-HOLE CONCRETE PILING (ROCK SOCKET), CONCRETED-ROCK SLOPE PROTECTION (1/2 T, CLASS VII, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (1/2 T, CLASS VII, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (1/2 T, CLASS VII, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (1/2 T, CLASS VII, METHOD B) (TON), CONCRETED-ROCK SLOPE PROTECTION (1/2 T, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (1/2 T, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (1/2 T, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (1/2 T, METHOD B) (TON), CONCRETED-ROCK SLOPE PROTECTION (1/4 T, CLASS V, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (1/4 T, CLASS V, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (1/4 T, CLASS V, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (1/4 T, CLASS V, METHOD B) (TON), CONCRETED-ROCK SLOPE PROTECTION (1/4 T, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (1/4 T, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (1/4 T, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (1/4 T, METHOD B) (TON), CONCRETED-ROCK SLOPE PROTECTION (150 LB, CLASS III, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (150 LB, CLASS III, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (20 LB, CLASS I, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (20 LB, CLASS I, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (20 LB, CLASS I, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (20 LB, CLASS I, METHOD B) (TON), CONCRETED-ROCK SLOPE PROTECTION (60 LB, CLASS II, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (60 LB, CLASS II, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (60 LB, CLASS II, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (60 LB, CLASS II, METHOD B) (TON), CONCRETED-ROCK SLOPE PROTECTION (COBBLE, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (COBBLE, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (COBBLE, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (COBBLE, METHOD B) (TON), CONCRETED-ROCK SLOPE PROTECTION (FACING, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (FACING, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (FACING, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (FACING, METHOD B) (TON), CONCRETED-ROCK SLOPE PROTECTION (LIGHT, 150 LB, CLASS III, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (LIGHT, 150 LB, CLASS III, METHOD B) (TON), CONCRETED-ROCK SLOPE PROTECTION (LIGHT, METHOD A) (CY), CONCRETED-ROCK SLOPE PROTECTION (LIGHT, METHOD A) (TON), CONCRETED-ROCK SLOPE PROTECTION (LIGHT, METHOD B) (CY), CONCRETED-ROCK SLOPE PROTECTION (LIGHT, METHOD B) (TON), REMOVE ROCK AND DEBRIS FROM CULTIVATED AREA, ROCK EXCAVATION (CONTROLLED BLASTING) (ENGMET), ROCK SLOPE PROTECTION (1/2 T, CLASS VII, METHOD A) (CY), ROCK SLOPE PROTECTION (1/2 T, CLASS VII, METHOD A) (TON), ROCK SLOPE PROTECTION (1/2 T, CLASS VII, METHOD B) (CY), ROCK SLOPE PROTECTION (1/2 T, CLASS VII, METHOD B) (TON), ROCK SLOPE PROTECTION (1/2 T, METHOD A) (CY), ROCK SLOPE PROTECTION (1/2 T, METHOD A) (TON), ROCK SLOPE PROTECTION (1/2 T, METHOD B) (CY), ROCK SLOPE PROTECTION (1/2 T, METHOD B) (TON), ROCK SLOPE PROTECTION (1/4 T, CLASS V, METHOD B) (CY), ROCK SLOPE PROTECTION (1/4 T, CLASS V, METHOD B) (TON), ROCK SLOPE PROTECTION (1/4 T, METHOD B) (CY), ROCK SLOPE PROTECTION (1/4 T, METHOD B) (TON), ROCK SLOPE PROTECTION (150 LB, CLASS III, METHOD B) (CY), ROCK SLOPE PROTECTION (150 LB, CLASS III, METHOD B) (TON), ROCK SLOPE PROTECTION (1T, CLASS VIII, METHOD A), ROCK SLOPE PROTECTION (1T, CLASS VIII, METHOD B), ROCK SLOPE PROTECTION (1T, CLASS VIII, METHOD B) (TON), ROCK SLOPE PROTECTION (1T, METHOD A) (ENGMET), ROCK SLOPE PROTECTION (1T, METHOD B) (ENGMET), ROCK SLOPE PROTECTION (20 LB, CLASS I, METHOD B) (CY), ROCK SLOPE PROTECTION (20 LB, CLASS I, METHOD B) (TON), ROCK SLOPE PROTECTION (2T, CLASS IX, METHOD A), ROCK SLOPE PROTECTION (2T, METHOD A) (ENGMET), ROCK SLOPE PROTECTION (3/8 T, CLASS VI, METHOD B) (CY), ROCK SLOPE PROTECTION (3/8 T, CLASS VI, METHOD B) (TON), ROCK SLOPE PROTECTION (300 LB, CLASS IV, METHOD B) (CY), ROCK SLOPE PROTECTION (300 LB, CLASS IV, METHOD B) (TON), ROCK SLOPE PROTECTION (3T, CLASS X, METHOD A), ROCK SLOPE PROTECTION (4T, CLASS XI, METHOD A), ROCK SLOPE PROTECTION (4T, METHOD A) (ENGMET), ROCK SLOPE PROTECTION (60 LB, CLASS II, METHOD B) (CY), ROCK SLOPE PROTECTION (60 LB, CLASS II, METHOD B) (TON), ROCK SLOPE PROTECTION (8T, METHOD A) (ENGMET), ROCK SLOPE PROTECTION (FACING, METHOD B) (CY), ROCK SLOPE PROTECTION (FACING, METHOD B) (TON), ROCK SLOPE PROTECTION (LIGHT, METHOD B) (CY), ROCK SLOPE PROTECTION (LIGHT, METHOD B) (TON), ROCK SLOPE PROTECTION (NO. Weight will vary based on density of rock available for the project. 0000004014 00000 n Draw Down Device, Sediment Basin Schematic - Vert. 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 This translates to a 0.75H: 1V incline and is shown below. Standard contract items and descriptions for Caltrans projects. Where applicable, inspect the footing areas and foundations for evidence of instability or areas where hydrostatic pressures may develop. Geofabrics offers a range of engineered slope, embankment and retaining wall solutions of use in transport infrastructure projects. 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. ), Geocomposite Wall Drain (w/ 6oz on 1 or 2 sides - Please specify.). Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. endstream Chapter 4: Construction Details, Section 72: Slope Protection Click it again to reverse the order. Review Section 4-90, Concrete, of this manual for details about concrete production. The devices include ground covers and channel liners such as: 1. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. Otherwise, placement could result in what is known as rockers or unstable rocks. Benchmark inspection of sampling and testing of rocks. A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. Erosion control devices provide direct protection to the soil surface therefore, are considered one the best measures for preventing erosion. 0000002336 00000 n in a MS Word document format from the 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.
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