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A geotextile is typically defined as any permeable textile material used to increase soil stability, provide erosion control or aid in drainage. 2019-07-30T13:47:33-04:00 When slope paving with concrete pavers is specified, ensure the special provision requirements are met. The bid item list and plans will specify which type of slope protection is to be performed. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes. 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. FDM 10-10-3 Refer to Section 4-96, Geosynthetics, of this manual for guidelines for inspecting and accepting rock slope protection fabric. All rights reserved. Riprap is typically placed along graded ditch, channel, and shoreline banks over geotextile, which prevents erosional undercutting. The devices include ground covers and channel liners such as: 1. 0000014254 00000 n You may be trying to access this site from a secured browser on the server. Click on the to search for an item in Decide whether an adequate number has been provided for the particular installation. 0000005658 00000 n Links to important documents and pages can be found below the chart. 5 0 obj These products were developed to meet specific agency (DOTs, MTOs, etc.) TAR_%R5Wa%*x4ux-x5d1c iU:v9b!KXGcFK 1fN2 t K! The maximum height of the vertica l lower portions 3.5 feet. 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. Angular shaped rock may be used on any planned slope. {s9y^ All items. Applicability Rock Slope Armor is applicable to: Slopes where unanticipated flows are encountered. Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. 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. 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. 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. 0000011079 00000 n Temp. Copies of these details are made available below in both Adobe Portable Document Format (PDF) and AUTOCAD Drawing (DWG) file formats. Decide whether modifications are necessary as a result of changed conditions. 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 (see Riprap Slope Protection Worksheet). K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. 0000009704 00000 n Contact Us Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. This has been superseded by Caltrans New Riprap Classes. 3. Your search for great running gear starts and ends with us. The method is particularly adaptable to locations where high-velocity flow is not detrimental, but desirable, and the hydraulic efficiency of smooth surfaces is important. endobj More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! (One call ordering and delivery). Use 5 to 7 st =w (j($M/!bMbo,iDjQL1{L! 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. <>/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<>>> 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. Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. 2019-07-30T13:47:33-04:00 /OPM 1 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. 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. Graniterock has a 101-year history of providing high quality products and service. {.sAewh[w#Iv#W6f" $JOPf/W%%XKK&A~b ?nfY_iu"m]HDwP) Rp Angular shaped rock may be used on any planned slope. Manufacturers information can be found at: We're available on the following channels. 0000002044 00000 n ), Geocomposite Wall Drain (w/ 6oz on 1 or 2 sides - Please specify.). <>/XObject<>/Properties<>>>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> 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. Ensure that the contractor places the fabric before placing the rock slope protection. 2019-07-30T13:44:04-04:00 2005), although maintenance considerations may serve to reduce this maximum size. When exposed aggregate slope paving is specified, ensure any concrete set retarders are used in accordance with manufacturer instructions. BMP040 "rock slope protection (no fabric)" as applicable. 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. For details about concrete production, review Section 4-90, Concrete, of this manual. 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 . "QamV(Z3VL> At TenCate ourgoal is your success. 0000013368 00000 n << This handbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. Click on the product name for a data sheet. Test panels may be specified in the special provisions. There are three material gradation requirements based on required rock layer thicknesses. 0000012468 00000 n rock slope protection fabric (class 8) 591200 rock stain: 780450 rock stain: 720110 small-rock slope protection: 192032 structure excavation (rock slope protection) (engmet) 0000008354 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. They blanket the soil, protecting it from wind and water forces. This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. Ensure existing shrubs and trees are protected so that they continue to anchor the surrounding soil. NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. EZw5'dr=`j+2\8:U.|V,%)~h/X8ps The finish surface must be roughened by brushing to expose rocks. :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 Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. Protection involves constructing a heavy mass of smaller rocks bound together by concrete. construction contract standards page. 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. 0000002021 00000 n <> 0000012187 00000 n . 1, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. 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. 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. Geosynthetic Bond Breaker (Call for product. main search page where you can specify additional parameters. 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. 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 PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f Without proper slope protection, a serious erosion problem known as "beaching" can develop on the upstream slope. 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 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 Barrier Landscape Edging & Paver Edging 6'/8. 0000007052 00000 n Riprap can be used to stabilize slopes to prevent erosion and provide support. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. >> uuid:30dd8676-a64b-4579-9ccf-fc82965d356f 9 0 obj 10 0 obj The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. Any springs or water courses that might affect the stability of the design. 0000004014 00000 n Fabric used for rock slope protection, temporary construction roadways, separation, stabilization, reinforcement, drainage, and erosion control. JavaScript is required to use content on this page. Rock Slope Protection practice is intended for slopes too unstable for revegetation practices alone. | Conditions of Use | Privacy Policy 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. 3, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. KEwAx{N*$J }COpU?s{bs. Erosion control is an important element of successful slope protection. (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. <>/Font<>>>/Fields[]>> are available to meet BABA (Build America, Buy America) requirements. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. 0000015681 00000 n 1 /Length 5601 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""(*$4"!f)G(J GHnBc__'h1'u]SO0P+R&yGeJ$FP?cSp28 1}9AQ #T6Bc*)_vU"]T hY# 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. Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. The color shall be black unless otherwise specified in the contract documents. State-furnished materials and expenses, as well as supplemental work items and descriptions. 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. Geotextiles have been in use for thousands of years dating back to the Egyptian Pharaohs. Rock riprap consists of loose rock that is dumped on the slope and distributed. Center splash basin . 0000000871 00000 n % To better control the contractors selection of rocks for placing, ensure the contractor paints tonnage on large rocks used in foundation construction. with a minimum of 50% of the stones . Class 2 is the default Class for M288 applications. 0000002313 00000 n RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. <> The gabion method consists of placing wire mesh box-shaped baskets filled onsite with hard, durable rocks. Benchmark inspection of sampling and testing of rocks. com routes make excellent running trails for serious runners and casual joggers, alike. 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. 6'' min. xZrFou D[&! Enter the item description of the code you wish to search for: 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. 1 0 obj These supersede the previous Caltrans Riprap Sizes. Copyright Maryland.gov. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. endobj The samples will be crushed in the laboratory to sizes needed to perform tests. 0000007029 00000 n Values shown are based on Table 873.3A dimensions and an assumed specific gravity of 2.65. 2 0 obj Before placement of the broken concrete, inspect the material and be sure the reinforcement has been removed flush to the surface of concrete. 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 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. Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. requirements. . endobj These products can be used in areas where they meet the local agency requirements. 4 0 obj California Department of Transportation 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. Review Section 4-90, Concrete, of this manual for details about concrete production. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 Vegetation (see . US 160NW is a nonwoven needlepunched geotextile made of 100% polypropylene staple filaments. 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. To provide the desired cleanliness, the contractor may need to sluice the rock or facing. endobj 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) The challenge was to construct a new taxiway over areas that were built on tidal flats and land reclaimed from Boston Harbor. Roll size is 15'x300 Equivalent to Mirafi 1120NC or Skaps GT112 (Click here for spec) AASHTO is typical mass of 4.1 sy/oz.. Soil Stabilization Matting - Channel Application, Perm. 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. You can also lay bags of sand along problem areas in your landscape to keep soil from washing away and to redirect water. The plans will designate which type applies at each location. Review contractors verification of unit weight of rock-filled gabions. On a cut slope, this could be due to . Be sure to consult your local project engineer or construction professional about the rock sizing and particular . Ensure the timber spacers are of the required material and spaced as planned. 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. Retaining Walls & Slope Stability Rock grading and quality requirements per Standard Specifications. Lap 6'' min. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. 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. Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. 0000014231 00000 n 0000004037 00000 n 3 0 obj Use the size and composition of yarn that is recommended by the fabric manufacturer. The contractor must also ensure the construction of adequate returns and keys at the ends. %PDF-1.3 % mum slope of two feet of horizontal distance for one foot of vertical rise. Rock Channel Protection Paved Gutter 601.13 Basis of Payment 601.01 Description. Geofabrics offers a range of engineered slope, embankment and retaining wall solutions of use in transport infrastructure projects. Verify the types of measurements and records necessary to support payment for the work. Review the plans for the location and number of weep holes. rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . Check to ensure that slopes and foundation areas are graded and compacted to specified tolerances. Thishandbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. Properly designed slope protection and stabilization has to include two components: a vegetational-biological and a mechanical-structural component. 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.