stream <>/Font<>>>/Fields[]>> 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. endstream 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. Use all suitable material in the work. Enter the item description of the code you wish to search for: 1800 Washington Blvd., Baltimore, MD 21230, Stormwater, Dam Safety, and Flood Management Home, Plan Review for State and Federal Projects. . Ensure that rocks of the specified sizes and shapes are being used. 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 measuring concrete or shotcrete, refer to Sections 4-90, Concrete, or 4-53, Shotcrete, of this manual. /OPM 1 endobj YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. Place a highly permeable and appro-priately sized geotextile filter fabric on the prepared slope following the manufacturer's recommendations. 9 0 obj More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! The heavier fabrics provide more strength and are less likely to tear when large class II or Class III boulders are placed on them. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. 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. Technical Support available for assistance. 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 Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. Shop Lowe's for solutions to control erosion on slopes, as well. NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. << Temp. 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. 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. All rights reserved. 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. Source: Caltran Highway Design Manual, Chapter 870 uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 Where applicable, inspect the footing areas and foundations for evidence of instability or areas where hydrostatic pressures may develop. % 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. 99 (30% off) Best Selling Saucony Flat Mask By mrhzid $8. The contractor must also ensure the construction of adequate returns and keys at the ends. 0000008354 00000 n Properly designed and planted vegetative covers play Erosion Control Fabrics featured here have been used in a wide range of applications including slope stabilization, sediment containment, runoff filtration, home protection, and vegetative regrowth. 0000007052 00000 n (For large riprap, consider a four inch layer of sand to protect the . You may be trying to access this site from a secured browser on the server. 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. <> Ensure the timber spacers are of the required material and spaced as planned. For details about concrete production, review Section 4-90, Concrete, of this manual. :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 Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. Of the various types of instability problems, foundation failures are the most serious and most common. For method A placement and the class of RSP described, comply with the rock grading shown in the following table: For method B placement and the class of RSP described, comply with the rock grading shown in the following table: Rock must have the values for the material properties shown in the following table: Select rock so that shapes provide a stable structure for the required section. 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. The finish surface must be roughened by brushing to expose rocks. JavaScript is required to use content on this page. You may check the size of rock by roughly measuring the size and converting the volume to mass. Geofabrics offers a range of engineered slope, embankment and retaining wall solutions of use in transport infrastructure projects. 2 0 obj To provide the desired cleanliness, the contractor may need to sluice the rock or facing. {s9y^ 0000012187 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. 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) Observe closely during rock placement to detect any damage to the fabric. {.sAewh[w#Iv#W6f" $JOPf/W%%XKK&A~b ?nfY_iu"m]HDwP) Rp (You may enter part of the word or the whole phrase). 1 0 obj The bid item list and plans will specify which type of slope protection is to be performed. Review the plans for the location and number of weep holes. (see Riprap Slope Protection Worksheet). XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. xZrFou D[&! 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. 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. Verify the types of measurements and records necessary to support payment for the work. Ensure the equipment used during spreading does not crack the rock. 3, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. When specified, ensure coloring is added to the concrete. Before placement of the broken concrete, inspect the material and be sure the reinforcement has been removed flush to the surface of concrete. Note any changes that may have occurred between the preliminary design studies and the start of construction. Method B is not restrictive with respect to the placement of individual rocks. Erosion control is an important element of successful slope protection. 5 0 obj 0000014254 00000 n 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. Other Names Rock Slope Protection. <> Caltrans requires the use of these new RSP gradations starting August 1st, 2016 in new projects and those not yet at 30 percent PS&E stage. These products can be used in areas where they meet the local agency requirements. Concrete canvas (CC) has the potential to become a widely used slope protection material owing to advantages such as flexibility, fast construction with low labor costs, and quick strength development. Protection involves constructing a heavy mass of smaller rocks bound together by concrete. 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 0000002313 00000 n %PDF-1.4 0000014231 00000 n If the fabric is joined by stitched seams, stitch with contrasting colored yarn. 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. /Type/ExtGState 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. in a MS Word document format from the <>stream 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. 4-7203C Small-Rock Slope Protection 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. Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. Be sure to consult your local project engineer or construction professional about the rock sizing and particular . >> Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. Decide whether an adequate number has been provided for the particular installation. > When changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may Without proper slope protection, a serious erosion problem known as "beaching" can develop on the upstream slope. For Type R, F, or Common stone riprap, provide Type 2 filter fabric when shown on the plans. Use the size and composition of yarn that is recommended by the fabric manufacturer. Rock riprap consists of loose rock that is dumped on the slope and distributed. 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. 3 0 obj 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. 10 0 obj uuid:30dd8676-a64b-4579-9ccf-fc82965d356f This has been superseded by Caltrans New Riprap Classes. are available to meet BABA (Build America, Buy America) requirements. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. Need quick pricing on Erosion Control Fabric? the contract cost database using the most recent year of data. Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. 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. Angular shaped rock may be used on any planned slope. Mirafi N-Series nonwovens combine high water flow rates, high soil interaction and durability while providing excellent soil particle retention. Review contractors verification of unit weight of rock-filled gabions. Products with a are available to meet BABA (Build America, Buy America) requirements. Obtain rock samples for acceptance tests. 0000000928 00000 n 2019-07-30T13:47:33-04:00 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. California Department of Transportation At the start of gabion placement, require the contractor to verify the minimum unit weight of the gabions to ensure it meets specifications. Lap 6'' min. endobj For RSP Classes IX thru XI, use Class 10 RSP-fabric. These supersede the previous Caltrans Riprap Sizes. 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. endobj 4 0 obj <>stream 6 0 obj Geosynthetic Bond Breaker (Call for product. The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. Soil Stabilization Matting - Slope Application, Perm. Start by choosing whether your patio is a **single rectangle** or if it has a different shape, in which case you. 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. There are three material gra requirements based on required rock layer dation thicknesses. 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 Standard contract items and descriptions for Caltrans projects. This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). 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 . <>/Metadata 7 0 R/OpenAction 8 0 R/Outlines 110 0 R/PageLayout/SinglePage/PageMode/UseOutlines/Pages 11 0 R/StructTreeRoot 137 0 R/Type/Catalog/ViewerPreferences<>>> Copyright Maryland.gov. 1, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. 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 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 ), Geocomposite Wall Drain (w/ 6oz on 1 or 2 sides - Please specify.). A geotextile is typically defined as any permeable textile material used to increase soil stability, provide erosion control or aid in drainage. Take care not to tear the filter fabric during installation. Mirafi 140N is a lightweight non woven geotextile that meets AASHTO M288 Class 3 geotextiles for separation and subsurface drainage. 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. 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 This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. 2 0 obj TAR_%R5Wa%*x4ux-x5d1c iU:v9b!KXGcFK 1fN2 t K! 0000002044 00000 n @>|0fWp^,Y/T!*gprE."8hjjJ7kUfmYxTsX"CfU2TL]Gdb_Kg,GA/`U)H!hkJARD[R` Center splash basin . 6'' min. 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. Ensure that the contractor places the fabric before placing the rock slope protection. When slope paving with concrete pavers is specified, ensure the special provision requirements are met. Complete the Patio or Walkway 6. 0000002336 00000 n 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 /Length 5601 Type R. Use stones between 50 and 250 lb. 0000004037 00000 n Properly designed slope protection and stabilization has to include two components: a vegetational-biological and a mechanical-structural component. To compensate for the lack of flexibility in the completed structure, ensure an adequate foundation lies below this type of protection. Contact your local TenCate Geosynthetic representative for the proper use and specification of these products. 0000009682 00000 n <>/XObject<>/Properties<>>>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> construction contract standards page. Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. Links to important documents and pages can be found below the chart. The concrete slope protection method consists of paving the embankment with portland cement concrete. The chart below lists US Fabrics' geosynthetics meeting CALTRANS specifications. Draw Down Device, Sediment Basin Schematic - Vert. 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. Copies of these details are made available below in both Adobe Portable Document Format(PDF) and AUTOCAD Drawing (DWG) file formats. Barrier Landscape Edging & Paver Edging 6'/8. (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. Rock Channel Protection Paved Gutter 601.13 Basis of Payment 601.01 Description. US 160NW is a nonwoven needlepunched geotextile made of 100% polypropylene staple filaments. 2019-07-30T13:44:04-04:00 Transportation Specifications Section 96-1.02I for Rock Slope Protection Fabric, Class 8, nonwoven geotextile. Rock Slope Protection practice is intended for slopes too unstable for revegetation practices alone. B. Cables. 0000005681 00000 n On a cut slope, this could be due to . The plans indicate the minimum depths of foundations. 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. State-furnished materials and expenses, as well as supplemental work items and descriptions. 0000008331 00000 n main search page where you can specify additional parameters. 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. Smooth the graded foundation. 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.. 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. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. endobj Please enable JavaScript in your browser. US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. Ensure concrete is cured by one of the specified methods. 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. 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. with a minimum of 50% of the stones . 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. 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. Click on the to search for an item in This translates to a 0.75H: 1V incline and is shown below. Click it again to reverse the order. 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. Close observation is required during rock placement to detect any damage to the fabric. If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. The latest list of Item Codes is available from HQ 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. Order corrective work when necessary. Erosion control devices provide direct protection to the soil surface therefore, are considered one the best measures for preventing erosion. HToL[U?Ayb:V;%Y48{RMLIlq&+J[mNN?J;A? These products were developed to meet specific agency (DOTs, MTOs, etc.) rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . 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. Benchmark inspection of sampling and testing of rocks. Contract Cost Data Project Details. Resident engineers should be familiar with the material contained in Chapters 870, Bank ProtectionErosion Control, and 880, "Shore Protection," of the Highway Design Manual. 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 samples will be crushed in the laboratory to sizes needed to perform tests. KEwAx{N*$J }COpU?s{bs. 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. The contract will identify the designated method. Refer to Section 6-202, Responsibilities for Acceptance of Manufactured or Fabricated Materials and Products, of this manual for additional information.