<< This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, 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. At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. endobj Shop Lowe's for solutions to control erosion on slopes, as well. Fabric used for rock slope protection, temporary construction roadways, separation, stabilization, reinforcement, drainage, and erosion control. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 When placing rocks, the contractor should ensure each placed rock is stable and not dependent on the one on top to hold it in place. 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. <> 0000008331 00000 n 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. <>/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<>>> 2019-07-30T13:47:33-04:00 Copyright Maryland.gov. KEwAx{N*$J }COpU?s{bs. xZrFou D[&! Check the area to be protected to ensure that the required expansion joints are in place. Soil Stabilization Matting - Channel Application, Temp. 2 0 obj 0000007052 00000 n US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. Review the plans for the location and number of weep holes. When specified, ensure coloring is added to the concrete. 0000002336 00000 n For measurement and payment, do the following: Chapter 1 - Caltrans Construction Organization, CalOES: Power Outage and Fire Recovery Resources. 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. 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. The challenge was to construct a new taxiway over areas that were built on tidal flats and land reclaimed from Boston Harbor. Contract Cost Data Project Details. 0000007029 00000 n Technical Support available for assistance. Neoloy Tough-Cells in slopes prevent erosion, enable drainage and stabilize the slope to provide a green surface cover. The contractor must also ensure the construction of adequate returns and keys at the ends. Place a layer (six inch minimum) of 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""(*$4"!f)G(J RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. Draw Down Device, Sediment Basin Schematic - Vert. Refer to Section 4-96, Geosynthetics, of this manual for guidelines for inspecting and accepting rock slope protection fabric. For maximum effect, both components must be integrally planned prior to road construction. Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. requirements. endobj If excess concrete remains on the surface, the finished product, when used in streams, will be too smooth and, along the protection, velocities will increase beyond those intended during design. Source: Caltran Highway Design Manual, Chapter 870 GHnBc__'h1'u]SO0P+R&yGeJ$FP?cSp28 1}9AQ #T6Bc*)_vU"]T hY# Please enable JavaScript in your browser. The heavier fabrics provide more strength and are less likely to tear when large class II or Class III boulders are placed on them. 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. Contact Us 2005), although maintenance considerations may serve to reduce this maximum size. Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. Ensure concrete is cured by one of the specified methods. 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. The maximum height of the vertica l lower portions 3.5 feet. Lap 6'' min. RG12N Nonwoven Geotextile with a 300 lbs grab tensile strength and a flow rate of 65 gallons a minute per square foot. 0000005658 00000 n 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. 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. Soil Stabilization Matting - Channel Application, Perm. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. 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. Enter the item description of the code you wish to search for: conforming to the requirements of 710-03 Vinyl Coated Steel Fence Fabric, Class A Wire Diameter, except color. If you have any questions or would like to learn more, please contact us. Rock mesh slope protection is a technique to control rockfalls . 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 endobj The Standard Specifications provide two methods of placement for this type of protection: Method A and Method B. 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. They are designed to protect against raveling-type rockfall that involves small-volume slope failures (up to about 7.6 m3 or 10 yd3) or blocks up to 1.5 m (5 ft), depending on the strength of the mesh used (Muhunthan et al. %PDF-1.4 % HToL[U?Ayb:V;%Y48{RMLIlq&+J[mNN?J;A? <>stream /OPM 1 JavaScript is required to use content on this page. 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. (For large riprap, consider a four inch layer of sand to protect the . A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. Mirafi N-Series nonwovens combine high water flow rates, high soil interaction and durability while providing excellent soil particle retention. 7 0 obj endobj =w (j($M/!bMbo,iDjQL1{L! You may be trying to access this site from a secured browser on the server. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. 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. 0000014231 00000 n 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. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. FDM 10-10-3 Erosion control is an important element of successful slope protection. The finish surface must be roughened by brushing to expose rocks. Smooth the graded foundation. 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 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. Center splash basin . Erosion control devices provide direct protection to the soil surface therefore, are considered one the best measures for preventing erosion. When exposed aggregate slope paving is specified, ensure any concrete set retarders are used in accordance with manufacturer instructions. 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. Riprap can be used to stabilize slopes to prevent erosion and provide support. Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. in a MS Word document format from the This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. Use 5 to 7 st Where applicable, inspect the footing areas and foundations for evidence of instability or areas where hydrostatic pressures may develop. 5 0 obj construction contract standards page. All rights reserved. 3, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. Check to ensure that slopes and foundation areas are graded and compacted to specified tolerances. For RSP Classes IX thru XI, use Class 10 RSP-fabric. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. Standard contract items and descriptions for Caltrans projects. are available to meet BABA (Build America, Buy America) requirements. 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. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. This translates to a 0.75H: 1V incline and is shown below. 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. <>stream (You may enter part of the word or the whole phrase). (One call ordering and delivery). The plans indicate the minimum depths of foundations. Decide whether an adequate number has been provided for the particular installation. 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. << Mirafi 140N is a lightweight non woven geotextile that meets AASHTO M288 Class 3 geotextiles for separation and subsurface drainage. The chart below lists US Fabrics' geosynthetics meeting CALTRANS specifications. For measuring concrete or shotcrete, refer to Sections 4-90, Concrete, or 4-53, Shotcrete, of this manual. uuid:30dd8676-a64b-4579-9ccf-fc82965d356f 0000004037 00000 n <> When changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. Type R. Use stones between 50 and 250 lb. Angular shaped rock may be used on any planned slope. EZw5'dr=`j+2\8:U.|V,%)~h/X8ps The contract plans will designate the required rock layer thickness for each location. 0000015681 00000 n rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . Soil Stabilization Matting - Slope Application, Clear Water Pipe Through Silt Fence/Super Silt Fence, Temporary Stone Outlet Structure (1 of 2, PDF only), Temporary Stone Outlet Structure (2 of 2, PDF only), Temporary Gabion Outlet Structure (1 of 2, PDF only), Temporary Gabion Outlet Structure (2 of 2, PDF only), Standard Inlet Protection (1 of 2, PDF only), Standard Inlet Protection (2 of 2, PDF only), Combination Inlet Protection (1 of 2, PDF only), Combination Inlet Protection (2 of 2, PDF only), Pipe Outlet Sediment Trap ST-I (1 of 3, PDF only), Pipe Outlet Sediment Trap ST-I (2 of 3, PDF only), Pipe Outlet Sediment Trap ST-I (3 of 3, PDF only), Stone/Riprap Outlet Sediment Trap ST-II (1 of 3, PDF only), Stone/Riprap Outlet Sediment Trap ST-II (2 of 3, PDF only), Stone/Riprap Outlet Sediment Trap ST-II (3 of 3, PDF only), Riprap Outlet Sediment Trap ST-III (1 of 3, PDF only), Riprap Outlet Sediment Trap ST-III (2 of 3, PDF only), Riprap Outlet Sediment Trap ST-III (3 of 3, PDF only), Concentric Trash Rack and Anti-Vortex Device (1 of 2, PDF only), Concentric Trash Rack and Anti-Vortex Device (2 of 2, PDF only), Types of Couplers for Corrugated Steel Pipe, Sediment Basin Schematic - Horiz. Observe closely during rock placement to detect any damage to the fabric. Your search for great running gear starts and ends with us. /Filter/FlateDecode Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. % AASHTO is typical mass of 4.1 sy/oz.. (see Riprap Slope Protection Worksheet). @>|0fWp^,Y/T!*gprE."8hjjJ7kUfmYxTsX"CfU2TL]Gdb_Kg,GA/`U)H!hkJARD[R` At TenCate ourgoal is your success. In 2007, the FAA approved construction of a new center field taxiway (Taxiway Mike) to alleviate airfield congestion. 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. 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. IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN <>/Font<>>>/Fields[]>> If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. stream Refer to Section 6-202, Responsibilities for Acceptance of Manufactured or Fabricated Materials and Products, of this manual for additional information. The bid item list and plans will specify which type of slope protection is to be performed. 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. 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. Click on a heading to sort by that heading. 3, METHOD B) (TON), STRUCTURE EXCAVATION (ROCK SLOPE PROTECTION) (ENGMET). To respond to the different problems associated with instability of rock faces, Geofabrics also has a broad range of independently verified rockfall mitigation systems. Use the size and composition of yarn that is recommended by the fabric manufacturer. Click it again to reverse the order. The color shall be black unless otherwise specified in the contract documents. This has been superseded by Caltrans New Riprap Classes. Rock Slope Protection practice is intended for slopes too unstable for revegetation practices alone. mum slope of two feet of horizontal distance for one foot of vertical rise. ), Geocomposite Wall Drain (w/ 6oz on 1 or 2 sides - Please specify.). 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. 0000005681 00000 n 0000002313 00000 n . 0000013368 00000 n 6'' min. Click on the product name for a data sheet. Provide galvanized guide rail cables a minimum 19 mm in diameter, consisting . 1, METHOD B) (CY), 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. "QamV(Z3VL> Take care not to tear the filter fabric during installation. 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. 1 The gabions are placed on filter fabric as detailed in the plans and specifications. Applicability Rock Slope Armor is applicable to: Slopes where unanticipated flows are encountered. Rock riprap consists of loose rock that is dumped on the slope and distributed. 5. Consult engineer to ensure applicable design requirements are met. main search page where you can specify additional parameters. endobj Obtain initial samples and have them tested for the specified attributes. 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 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"). Copyright 2023 TenCate Geosynthetics Americas. endobj Order corrective work when necessary. Of the various types of instability problems, foundation failures are the most serious and most common. The contract will identify the designated method. These supersede the previous Caltrans Riprap Sizes. 2. {s9y^ 0000012187 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. Products with a are available to meet BABA (Build America, Buy America) requirements. rock slope protection fabric (class 8) 591200 rock stain: 780450 rock stain: 720110 small-rock slope protection: 192032 structure excavation (rock slope protection) (engmet) 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. - Shoreline Protection with EcoTubes™ CALTRANS does not have an APL/QPL for fabrics. These products can be used in areas where they meet the local agency requirements. To compensate for the lack of flexibility in the completed structure, ensure an adequate foundation lies below this type of protection. 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. /Length 5601 Mirafi 135N, 140NL and 140NC are lighter weight versions of Mirafi 140N . <> endobj 0000014254 00000 n Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. Contact your local TenCate Geosynthetic representative for the proper use and specification of these products. The concrete slope protection method consists of paving the embankment with portland cement concrete. Manufacturers information can be found at: Nominal RSP class by median particle diameterb Nominal median Mirafi N-Series Product Description Sheet. XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. 0000008354 00000 n There are three material gradation requirements based on required rock layer thicknesses. 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 <>/XObject<>/Properties<>>>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> Placement of Bedding Material 1. 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. Without proper slope protection, a serious erosion problem known as "beaching" can develop on the upstream slope. Links to important documents and pages can be found below the chart. 3. Ensure that the contractor performs concrete finishing as specified and that the slope paving is cured by one of the specified methods. 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. 99 (30% off) Best Selling Saucony Flat Mask By mrhzid $8. Project Details For EA 04-0A0204 ITEM NUMBER 729011 ROCK SLOPE PROTECTION FABRIC (CLASS 8) Bid Opening Date (mm-dd-yyyy): 04-21-2021 District-County-Route-Postmile: 04-SON-1-R15./R15.7 Quantity: 220 SQYD Unit Price: $21.50 Total Price: Type of work: REALIGN ROADWAY To provide the desired cleanliness, the contractor may need to sluice the rock or facing. 4 0 obj These products were developed to meet specific agency (DOTs, MTOs, etc.) If the fabric is joined by stitched seams, stitch with contrasting colored yarn. Click on the to search for an item in AASHTO is typical mass of 4.1 sy/oz. Obtain rock samples for acceptance tests. 1 0 obj 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. Natural Resources & Energy Infrastructure, Energy - Power Generation - Renewables - Solar, Energy - Power Generation - Renewables - Wind. Verify the types of measurements and records necessary to support payment for the work. Geotextiles have been in use for thousands of years dating back to the Egyptian Pharaohs. California Department of Transportation { , IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN. Be sure to consult your local project engineer or construction professional about the rock sizing and particular . %PDF-1.3 % Copies of these details are made available below in both Adobe Portable Document Format (PDF) and AUTOCAD Drawing (DWG) file formats. Note any changes that may have occurred between the preliminary design studies and the start of construction. 0000004014 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. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. Soil Stabilization Matting - Slope Application, Perm.
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