Standard contract items and descriptions for Caltrans projects. 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. 0000007029 00000 n Benchmark inspection of sampling and testing of rocks. Decide whether an adequate number has been provided for the particular installation. Geotextiles. The heavier fabrics provide more strength and are less likely to tear when large class II or Class III boulders are placed on them. with a minimum of 50% of the stones . 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. 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. 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 . mum slope of two feet of horizontal distance for one foot of vertical rise. The concrete slope protection method consists of paving the embankment with portland cement concrete. %PDF-1.3 % The plans will designate which type applies at each location. "QamV(Z3VL> 0000015681 00000 n 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 > 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. Any springs or water courses that might affect the stability of the design. Rock riprap consists of loose rock that is dumped on the slope and distributed. YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. 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 Standard Specifications provide two methods of placement for this type of protection: Method A and Method B. Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. Soil Stabilization Matting - Channel Application, Perm. We're available on the following channels. 2005), although maintenance considerations may serve to reduce this maximum size. 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. Complete the Patio or Walkway 6. Shop Lowe's for solutions to control erosion on slopes, as well. 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. 0000009975 00000 n Observe construction to ensure the contractor does the placing, finishing, and curing as specified. Natural Resources & Energy Infrastructure, Energy - Power Generation - Renewables - Solar, Energy - Power Generation - Renewables - Wind. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. 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. Place a highly permeable and appro-priately sized geotextile filter fabric on the prepared slope following the manufacturer's recommendations. 0000002021 00000 n All rights reserved. For measurement and payment, do the following: Chapter 1 - Caltrans Construction Organization, CalOES: Power Outage and Fire Recovery Resources. Review the plans for the location and number of weep holes. endobj Mirafi N-Series nonwovens combine high water flow rates, high soil interaction and durability while providing excellent soil particle retention. 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. 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. 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. Mirafi 180N is a moderate weight nonwoven geotextile that meets AASHTO M288 Class 1 geotextiles for separation and subsurface drainage. 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. (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. endobj Contact Us If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. 5. 2019-07-30T13:44:04-04:00 4 0 obj 6 0 obj engineering fabric pinned to the slope, or both a . Review Section 4-90, Concrete, of this manual for details about concrete production. 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. Please enable JavaScript in your browser. The challenge was to construct a new taxiway over areas that were built on tidal flats and land reclaimed from Boston Harbor. Ensure the timber spacers are of the required material and spaced as planned. EZw5'dr=`j+2\8:U.|V,%)~h/X8ps construction contract standards page. or call endobj 0000000928 00000 n >> There are three material gradation requirements based on required rock layer thicknesses. 0000000871 00000 n At TenCate ourgoal is your success. 0000009704 00000 n Barrier Landscape Edging & Paver Edging 6'/8. 0000014231 00000 n %PDF-1.4 /Filter/FlateDecode The maximum height of the vertica l lower portions 3.5 feet. 0000004014 00000 n The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. endobj application/pdf Mirafi N-Series Product Description Sheet. 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. Graniterock has a 101-year history of providing high quality products and service. The chart below lists US Fabrics' geosynthetics meeting CALTRANS specifications. . XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. endstream 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. Rock Slope Protection practice is intended for slopes too unstable for revegetation practices alone. 1 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"). 2019-07-30T13:47:33-04:00 1 0 obj 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. Contract Cost Data Project Details. Close observation is required during rock placement to detect any damage to the fabric. Properly designed and planted vegetative covers play Erosion control devices provide direct protection to the soil surface therefore, are considered one the best measures for preventing erosion. Angular shaped rock may be used on any planned slope. K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. 0000005681 00000 n The devices include ground covers and channel liners such as: 1. Contact our sales team at 1-863-270-8118 to discuss your erosion control requirements. Copyright 2023 TenCate Geosynthetics Americas. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 You can also lay bags of sand along problem areas in your landscape to keep soil from washing away and to redirect water. 3 0 obj 0000014254 00000 n Type R. Use stones between 50 and 250 lb. 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. 0000013346 00000 n Polypropylene is stable within a pH range of 2 to 13. (For large riprap, consider a four inch layer of sand to protect the . Manufacturers information can be found at: Rock Channel Protection Paved Gutter 601.13 Basis of Payment 601.01 Description. 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. Copies of these details are made available below in both Adobe Portable Document Format(PDF) and AUTOCAD Drawing (DWG) file formats. 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) <>/XObject<>/Properties<>>>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> Transportation Specifications Section 96-1.02I for Rock Slope Protection Fabric, Class 8, nonwoven geotextile. com routes make excellent running trails for serious runners and casual joggers, alike. For details about concrete production, review Section 4-90, Concrete, of this manual. 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. Mirafi 140N is a lightweight non woven geotextile that meets AASHTO M288 Class 3 geotextiles for separation and subsurface drainage. State-furnished materials and expenses, as well as supplemental work items and descriptions. Geotextiles have been in use for thousands of years dating back to the Egyptian Pharaohs. Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources. Your search for great running gear starts and ends with us. Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. Riprap can be used to stabilize slopes to prevent erosion and provide support. Need quick pricing on Erosion Control Fabric? Refer to Section 4-96, Geosynthetics, of this manual for guidelines for inspecting and accepting rock slope protection fabric. Roll size is 15'x300 Equivalent to Mirafi 1120NC or Skaps GT112 (Click here for spec) 2019-07-30T13:47:33-04:00 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 When slope paving with concrete pavers is specified, ensure the special provision requirements are met. Soil Stabilization Matting - Channel Application, Temp. This translates to a 0.75H: 1V incline and is shown below. All items. 0000004037 00000 n A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. xZrFou D[&! You may check the size of rock by roughly measuring the size and converting the volume to mass. IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! To respond to the different problems associated with instability of rock faces, Geofabrics also has a broad range of independently verified rockfall mitigation systems. Obtain rock samples for acceptance tests. This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). 0000009682 00000 n 0000005658 00000 n 0000002336 00000 n AASHTO is typical mass of 4.1 sy/oz.. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. Refer to Section 6-202, Responsibilities for Acceptance of Manufactured or Fabricated Materials and Products, of this manual for additional information. 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. JavaScript is required to use content on this page. Test panels may be specified in the special provisions. 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 Click on the to search for an item in Ensure the equipment used during spreading does not crack the rock. US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. 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. 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. Soil Stabilization Matting - Slope Application, Perm. Otherwise, placement could result in what is known as rockers or unstable rocks. The contract plans will designate the required rock layer thickness for each location.