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 0000007029 00000 n 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. Erosion control is an important element of successful slope protection. 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 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) When exposed aggregate slope paving is specified, ensure any concrete set retarders are used in accordance with manufacturer instructions. 0000014254 00000 n Provide galvanized guide rail cables a minimum 19 mm in diameter, consisting . 7 0 obj When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. 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. 0000002021 00000 n XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. 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. << For details about concrete production, review Section 4-90, Concrete, of this manual. endobj All rights reserved. L Earth Compacted Fabric Engineering 6'' 1'-0'' centers Staples at 6'' 2'' 6'' (Rock Splash Basin) TYPE 4 1 2 (Rock Slope Protection) TYPE 5 Staples at 12 inch centers. Observe construction to ensure the contractor does the placing, finishing, and curing as specified. Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. <>stream Copies of these details are made available below in both Adobe Portable Document Format (PDF) and AUTOCAD Drawing (DWG) file formats. The concrete slope protection method consists of paving the embankment with portland cement concrete. :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 The maximum height of the vertica l lower portions 3.5 feet. Please enable scripts and reload this page. Ensure the timber spacers are of the required material and spaced as planned. The samples will be crushed in the laboratory to sizes needed to perform tests. Natural Resources & Energy Infrastructure, Energy - Power Generation - Renewables - Solar, Energy - Power Generation - Renewables - Wind. 0000008354 00000 n The equilibrium soil-to-geotextile system that allows for adequate movement of a liquid across the plane of the geotextile with limited soil loss over the service lifetime of the application. 6 0 obj Riprap can be used to stabilize slopes to prevent erosion and provide support. Graniterock has a 101-year history of providing high quality products and service. Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. 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. 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. 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 . YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. Links to important documents and pages can be found below the chart. 0000011079 00000 n Placement of Bedding Material 1. <> You may be trying to access this site from a secured browser on the server. 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. %PDF-1.3 % Ensure concrete is cured by one of the specified methods. 1 Polypropylene is stable within a pH range of 2 to 13. com routes make excellent running trails for serious runners and casual joggers, alike. On a cut slope, this could be due to . More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! 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. Ensure that rocks of the specified sizes and shapes are being used. Slope protection is usually needed to protect the upstream slope against erosion due to wave action. These products were developed to meet specific agency (DOTs, MTOs, etc.) Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. Consult engineer to ensure applicable design requirements are met. State-furnished materials and expenses, as well as supplemental work items and descriptions. Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. Complete the Patio or Walkway 6. Soil Stabilization Matting - Channel Application, Perm. 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. Decide whether an adequate number has been provided for the particular installation. (see Riprap Slope Protection Worksheet). 3. IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN 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. 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 180N is a moderate weight nonwoven geotextile that meets AASHTO M288 Class 1 geotextiles for separation and subsurface drainage. 0000013368 00000 n Need quick pricing on Erosion Control Fabric? The challenge was to construct a new taxiway over areas that were built on tidal flats and land reclaimed from Boston Harbor. The gabions are placed on filter fabric as detailed in the plans and specifications. 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. Be sure to consult your local project engineer or construction professional about the rock sizing and particular . Refer to Section 6-202, Responsibilities for Acceptance of Manufactured or Fabricated Materials and Products, of this manual for additional information. 2 0 obj B. Cables. or call main search page where you can specify additional parameters. This handbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. /Filter/FlateDecode rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . Manufacturers information can be found at: are available to meet BABA (Build America, Buy America) requirements. If the slope is steeper than 2:1, do not use rounded boulders and cobbles. The Standard Specifications provide two methods of placement for this type of protection: Method A and Method B. Geotextiles have been in use for thousands of years dating back to the Egyptian Pharaohs. All items. Center splash basin . (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. 0000005658 00000 n 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. Provide filter fabric in accordance with DMS-6200, Filter Fabric. For protection stone riprap, provide Type 2 filter fabric unless otherwise shown on the plans. Shop Lowe's for solutions to control erosion on slopes, as well. 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. We're available on the following channels. Rock grading and quality requirements per Standard Specifications. This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. 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. engineering fabric pinned to the slope, or both a . When specified, ensure coloring is added to the concrete. % 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. Without proper slope protection, a serious erosion problem known as "beaching" can develop on the upstream slope. The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. 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 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. Where applicable, inspect the footing areas and foundations for evidence of instability or areas where hydrostatic pressures may develop. Start by choosing whether your patio is a **single rectangle** or if it has a different shape, in which case you. 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. Obtain rock samples for acceptance tests. - Shoreline Protection with EcoTubes&trade; CALTRANS does not have an APL/QPL for fabrics. There are three material gra requirements based on required rock layer dation thicknesses. Angular shaped rock may be used on any planned slope. Ensure that the contractor places the fabric before placing the rock slope protection. 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. Decide whether modifications are necessary as a result of changed conditions. stream (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. 0000007052 00000 n 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. 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.. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. "QamV(Z3VL> Copies of these details are made available below in both Adobe Portable Document Format(PDF) and AUTOCAD Drawing (DWG) file formats. The latest list of Item Codes is available from HQ A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. 0000014231 00000 n 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. 3, METHOD B) (TON), STRUCTURE EXCAVATION (ROCK SLOPE PROTECTION) (ENGMET). Click it again to reverse the order. Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. 9 0 obj Mirafi N-Series Product Description Sheet. 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 Properly designed and planted vegetative covers play Contract Cost Data Project Details. Nominal RSP class by median particle diameterb Nominal median 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. Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. 0000000871 00000 n endobj To respond to the different problems associated with instability of rock faces, Geofabrics also has a broad range of independently verified rockfall mitigation systems. 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. Your search for great running gear starts and ends with us. You may check the size of rock by roughly measuring the size and converting the volume to mass. 0000012187 00000 n Check the area to be protected to ensure that the required expansion joints are in place. Source: Caltran Highway Design Manual, Chapter 870 US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 Contact your local TenCate Geosynthetic representative for the proper use and specification of these products. 2 0 obj 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. in a MS Word document format from the The contract will identify the designated method. Use 5 to 7 st Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources. mum slope of two feet of horizontal distance for one foot of vertical rise. Review Section 4-90, Concrete, of this manual for details about concrete production. { , IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN. There are three material gradation requirements based on required rock layer thicknesses. 1, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. Also, ensure the contractor does not drop rock into place; otherwise, cracking or breaking may occur. Test panels may be specified in the special provisions. At the start of gabion placement, require the contractor to verify the minimum unit weight of the gabions to ensure it meets specifications. endobj FDM 10-10-3 HToL[U?Ayb:V;%Y48{RMLIlq&+J[mNN?J;A? RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. <>/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<>>> 0000005681 00000 n Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. Rock mesh slope protection is a technique to control rockfalls .