Values shown are based on Table 873.3A dimensions and an assumed specific gravity of 2.65. Properly designed slope protection and stabilization has to include two components: a vegetational-biological and a mechanical-structural component. <> Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. KEwAx{N*$J }COpU?s{bs. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. (You may enter part of the word or the whole phrase). (see Riprap Slope Protection Worksheet). Other Names Rock Slope Protection. conforming to the requirements of 710-03 Vinyl Coated Steel Fence Fabric, Class A Wire Diameter, except color. 2 0 obj 1 0 obj Method B is not restrictive with respect to the placement of individual rocks. If the fabric is joined by stitched seams, stitch with contrasting colored yarn. 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. Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may Soil Stabilization Matting - Channel Application, Perm. Rock mesh slope protection is a technique to control rockfalls . 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 HToL[U?Ayb:V;%Y48{RMLIlq&+J[mNN?J;A? 2019-07-30T13:47:33-04:00 When changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. with a minimum of 50% of the stones . At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. Copies of these details are made available below in both Adobe Portable Document Format(PDF) and AUTOCAD Drawing (DWG) file formats. (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. 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 2. Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. Ensure that the contractor performs concrete finishing as specified and that the slope paving is cured by one of the specified methods. Ensure that rocks of the specified sizes and shapes are being used. Intermittent inspection of placement of slope protection, slope paving, and fabric operations. AASHTO is typical mass of 4.1 sy/oz.. 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"). Class 2 is the default Class for M288 applications. 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. endobj If the slope is steeper than 2:1, do not use rounded boulders and cobbles. 1. Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. All items. endobj Take care not to tear the filter fabric during installation. Standard contract items and descriptions for Caltrans projects. Roll size is 15'x300 Equivalent to Mirafi 1120NC or Skaps GT112 (Click here for spec) Start by choosing whether your patio is a **single rectangle** or if it has a different shape, in which case you. 0000002021 00000 n 9 0 obj 0000015681 00000 n endobj 0000008354 00000 n The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. 5. A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes. 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. 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. 0000002044 00000 n 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. Angular shaped rock may be used on any planned slope. Temp. Erosion control devices provide direct protection to the soil surface therefore, are considered one the best measures for preventing erosion. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. This has been superseded by Caltrans New Riprap Classes. For Type R, F, or Common stone riprap, provide Type 2 filter fabric when shown on the plans. Riprap is typically placed along graded ditch, channel, and shoreline banks over geotextile, which prevents erosional undercutting. << (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. Erosion control is an important element of successful slope protection. Smooth the graded foundation. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. are available to meet BABA (Build America, Buy America) requirements. Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. 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. Thishandbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. These supersede the previous Caltrans Riprap Sizes. Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. Order corrective work when necessary. 6 0 obj @>|0fWp^,Y/T!*gprE."8hjjJ7kUfmYxTsX"CfU2TL]Gdb_Kg,GA/`U)H!hkJARD[R` The contract will identify the designated method. Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. Note any changes that may have occurred between the preliminary design studies and the start of construction. Click on the product name for a data sheet. FDM 10-10-3 The maximum height of the vertica l lower portions 3.5 feet. Placement of Bedding Material 1. Type R. Use stones between 50 and 250 lb. K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. 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. They blanket the soil, protecting it from wind and water forces. {.sAewh[w#Iv#W6f" $JOPf/W%%XKK&A~b ?nfY_iu"m]HDwP) Rp in a MS Word document format from the 7 0 obj To provide the desired cleanliness, the contractor may need to sluice the rock or facing. 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. 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. If you have any questions or would like to learn more, please contact us. Observe construction to ensure the contractor does the placing, finishing, and curing as specified. 5 0 obj {s9y^ 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 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. Soil Stabilization Matting - Slope Application, Perm. The bid item list and plans will specify which type of slope protection is to be performed. IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN 0000005658 00000 n Of the various types of instability problems, foundation failures are the most serious and most common. 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. AASHTO is typical mass of 4.1 sy/oz. All rights reserved. requirements. <>stream Mirafi N-Series nonwovens combine high water flow rates, high soil interaction and durability while providing excellent soil particle retention. 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. Ensure that the contractor places the fabric before placing the rock slope protection. 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. Before placement of the broken concrete, inspect the material and be sure the reinforcement has been removed flush to the surface of concrete. 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. endstream main search page where you can specify additional parameters. The color shall be black unless otherwise specified in the contract documents. <>stream Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. The heavier fabrics provide more strength and are less likely to tear when large class II or Class III boulders are placed on them. 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. Enter the item description of the code you wish to search for: 0000009975 00000 n B. Cables. At TenCate ourgoal is your success. <> When exposed aggregate slope paving is specified, ensure any concrete set retarders are used in accordance with manufacturer instructions. 1 These products were developed to meet specific agency (DOTs, MTOs, etc.) - Shoreline Protection with EcoTubes&trade; CALTRANS does not have an APL/QPL for fabrics. 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 /Length 5601 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. Click on a heading to sort by that heading. There are three material gra requirements based on required rock layer dation thicknesses. The plans indicate the minimum depths of foundations. <>/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<>>> RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. 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. endobj Slope protection is usually needed to protect the upstream slope against erosion due to wave action. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. 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 . 0000002313 00000 n Review Section 4-90, Concrete, of this manual for details about concrete production. 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. 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. Need quick pricing on Erosion Control 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 Nominal RSP class by median particle diameterb Nominal median Check to ensure that slopes and foundation areas are graded and compacted to specified tolerances. Retaining Walls & Slope Stability For details about concrete production, review Section 4-90, Concrete, of this manual. Temporary structures shall be left in place until adequate vegetation and the permanent . Draw Down Device, Sediment Basin Schematic - Vert. engineering fabric pinned to the slope, or both a . Fabric used for rock slope protection, temporary construction roadways, separation, stabilization, reinforcement, drainage, and erosion control. 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. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. 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 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. Obtain rock samples for acceptance tests. 0000005681 00000 n Refer to Section 4-96, Geosynthetics, of this manual for guidelines for inspecting and accepting rock slope protection fabric. Technical Support available for assistance. Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. . Your search for great running gear starts and ends with us. endobj ), Geocomposite Wall Drain (w/ 6oz on 1 or 2 sides - Please specify.). Click it again to reverse the order. Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 Check the area to be protected to ensure that the required expansion joints are in place. Transportation Specifications Section 96-1.02I for Rock Slope Protection Fabric, Class 8, nonwoven geotextile. 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 A geotextile is typically defined as any permeable textile material used to increase soil stability, provide erosion control or aid in drainage. 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. You can also lay bags of sand along problem areas in your landscape to keep soil from washing away and to redirect water. For details about concrete production, review Section 4-90, Concrete, of this manual. 0000012468 00000 n Vegetation (see . If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. 6'' min. The plans will designate which type applies at each location. At the start of gabion placement, require the contractor to verify the minimum unit weight of the gabions to ensure it meets specifications. The gabions are placed on filter fabric as detailed in the plans and specifications. Rock riprap consists of loose rock that is dumped on the slope and distributed. 3. US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. Use all suitable material in the work. 10 0 obj Without proper slope protection, a serious erosion problem known as "beaching" can develop on the upstream slope. 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 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. /OPM 1 0000008331 00000 n Click on the to search for an item in 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. . When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. Please enable JavaScript in your browser. << 1, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. Benchmark inspection of sampling and testing of rocks. St Philip The Apostle Church Bulletin, Articles R