4 0 obj All cracks shall be digitally scanned to allow for accurate measurement. The foundation is to be explored below the bottom of the excavation to determine the type and condition of the foundation. excavated drop inlet protection (Temporary) 6.50.1 6.51.1. The gradation is the distribution of various particle sizes within the material. Work shall consist of furnishing and constructing a Rockwood Vintage TM unit segmental retaining wall (SRW), CONCRETE SEGMENTAL RETAINING WALL SYSTEM PART 1: GENERAL SPECIFICATIONS 1.01 Work Included A. + (12 in. Construction loads often exceed design loads. Figure 4.3: Minimum Cover to Allow Construction Traffic over Pipe 2016v1.0 Chapter 4 3, 4 The following tables give VDOT specifications for maximum height of cover for some types of pipe. ACI Concrete. Your one-stop source for VDOT maps, data and project info. Computation of U.S. # u protection. The inspection can be conducted manually if adequate crawl/walking space and ventilation is available to safely conduct the inspection and the individual(s) conducting the inspection have undergone training on working in confined spaces in accordance with VDOT s current Safety Policy and Procedure #8 Confined Space Entry Policy and Procedure General, or the inspection can be conducted with a video camera. hbbd``b`$BAD`LZ H0j( a2H-q u\?#v#_ Do not compact. Topics include permits and fees, trench widths, pipe laying, bedding, initial, SECTION 08000 STORM DRAINAGE 08010 DESIGN A. bKjL,gBZqa>,\w Heavily compacted soils contain few large pores, less total pore volume and, consequently, a greater density. <> The initial backfill of select Type I backfill protects the pipe during installation from impact damage and extends to the springline of the pipe. For more information about taking the . VDOT: Soils and Aggregate Compaction. 2e\o ngV10J6q`pp)|Hpm3@BF > endobj 298 0 obj <> endobj 299 0 obj <>stream 142 0 obj <>/Filter/FlateDecode/ID[<40D256C358E2674187D5A8FC321FC95C>]/Index[129 27]/Info 128 0 R/Length 70/Prev 587873/Root 130 0 R/Size 156/Type/XRef/W[1 2 1]>>stream %PDF-1.5 % Block and gravel inlet Protection (Temporary) 6.52.1. Portion of Section 2102 . Do not compact directly on pipe as it may damage the pipe. 35 terms. True or false: A soil that contains a high percentage of fines is more affected by water that one with a low percentage of fines. Students must bring valid ID & attend class in order to test. Other sets by this creator. When you learn and master soils inspection, your market value shoots up. Importance to Maintenance & Water Quality. After pipe installation and prior to backfilling, plugs shall be installed from the exterior of the pipe or box culvert and snugly seated. When joining pipe: Begin at the downstream end (Bell faces upstream) Ensure spigot and bell are clean and free of debris Properly lubricate spigot and bell with pipe lubricant Is Contractor aware of the maximum insertion angle? endstream endobj startxref Use units conforming to the dimensions, SECTION 33 05 16.13 PRECAST CONCRETE PART 1 - GENERAL 1.01 SECTION INCLUDES A. Students are required to register for classes on the GCC and/or CCWA web sites. Please check your spelling or try another term. Importance to Maintenance & Water Quality. FOUNDATIONS STEPS TO CONSTRUCTING A MOISTURE-RESISTANT FOUNDATION Build a Better Home Details are critical when constructing a sound building foundation that will withstand water and control dampness. Cleaning, Inspecting, and Testing Storm Sewers C. Cleaning and, SECTION 33 41 13 PUBLIC STORM PART 1 - GENERAL 1.01 SECTION INCLUDES A. 6.2 PIPE PVC gravity sewer pipe and fittings, SECTION 02400 - STORM DRAIN SYSTEM CONTENTS: Part 1 - General 1 1.01 Work Included 1 1.02 Related Requirements 1 1.03 Reference Standards 1 1.04 Quality Assurance 1 1.05 Measurement And. 296 0 obj <> endobj - 2000, If you believe that this page should be taken down, please follow our DMCA take down process, Something went wrong! The following is a list of SPECIFICATIONS, which may be related to this section: A perforated conduit such as pipe, tubing or tile installed beneath the ground to intercept and convey ground water. A review of the proper minimum/maximum height of cover for the specific type of pipe should be completed. 5) Why is lime used with soil? Please click on the course title to see the full course description. Cleaning, Inspecting, and Testing Sanitary Sewers B. Place sample in container and weigh. The middle of the bedding, should be loosely placed and not exceed 8 inches. 55 terms. of the rammer used to compact the soil or soil and aggregate mixture in the mold and the number of layers placed into the compaction mold for compaction. The original Former is a vacuum formed light gauge plastic mold, The contractor shall moist-cure the completed Lime Treated Subbase for a minimum of days before allowing any traffic on the compacted surface. 19 terms. ), Index. container, large spoon, and 1.1 lbs. Each layer of Class I and regular backfill material shall be compacted by rolling, tamping with mechanical rammers, or hand tamping with heavy metal tampers with a face of at least 25 square inches. 5.01 Design, PROJECT COST ESTIMATE ASSUMPTIONS AND EXCLUSIONS, SPECIFICATIONS FOR SEWER PIPE AND LINING INSERTION - TRENCHLESS; GENERAL GUIDELINES (As Provided by NASSCO), TECHNICAL NOTE Culvert Sliplining and Lining of Casings with HPPipe. True or false: Open graded aggregates are used in pavement to give the structure more strength. Leak Resistant: A joint which limits water leakage at a maximum rate of 200 gallons/inch diameter/mile/day for the pipeline system for the project specified head or pressure. 2. 57 stone MUST be capped with a minimum of 4 crusher run prior to placement of pipe or box culvert. City of Seattle Supplement to the Specification for Road, Bridge and Municipal Construction, most current addition. (test every other 4 in. General: Submit the following in accordance with The General Conditions. AASHTO M 145 The Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes. large void spaces and is loosely compacted. Materials Notebook Resource Document (pdf 2 MB) March 16, 2015. The values are often affected by varying percentages of large aggregate which consultants and contractors do not usually put into consideration. 2016v1.0 Chapter 4 14, 15 POST INSTALLATION INSPECTION The following is an excerpt from Virginia Test Method 123 Post Installation Inspection of Buried Storm Drain Pipe and Pipe Culverts covering the scope of post installation pipe inspection. % CITY AND COUNTY OF DENVER ENGINEERING DIVISION Wastewater Capital Projects Management Standard Construction Specification 10.1 Precast Concrete Pipe 10.1.1 General This section covers material requirements, DIVISION 4300 STORM DRAINAGE SECTION 4305 STORM SEWER PART 1 - GENERAL 1.01 SCOPE This section covers the construction of storm sewers for the collection and transport of stormwater runoff. 57 stone can be used as a backfill in the sub foundation. 5) True or False. Repair of sanitary sewer lines by replacing short lengths of failed pipe with new pipe. In a flexible pipe this zone must protect the pipe from distortions due to loading extend to 12 above pipe. Soil Compaction Handbook ff Soil Compaction Soil compaction is defined as the method of mechanically increasing the density of soil. 2) 108 in. Applications for a zoning district map amendment (rezoning), conditional rezoning, planned development, or conditional use permit shall include a VDOT traffic impact statement (VTIS), and applications for a site plan or preliminary plat shall include a traffic impact statement (TIS), where the proposed development is reasonably anticipated to . hV[oH+hz3HJ The loosely placed center section of the bedding allows the pipe to seat itself and helps minimize point loads. 10) What is the maximum backfill lift thickness? 3) 104 in. A trench at the edge of the pavement provides a cavity with the least resistance for water to flow and accommodate pavement drainage. "Understanding soils is the key to becoming a well-rounded special inspector. SECTION 15076 CEMENT-MORTAR LINED AND COATED (CML&C) STEEL PIPE PART 1 GENERAL 1.01 DESCRIPTION This section designates the requirements for steel pipe fabrication, test in shop, installation of steel, SECTION LS 2530 SANITARY SEWERS PART 1 GENERAL 1.1 SUBMITTALS A. Single Offset: This joint first appeared in the early 1990 s. This style of spigot is much easier to manufacture. hb```f``2g`2X@Y809wCc cRBTK@S0UYB:d P&t%iV'XhS:Ku.0%7Q4~Av{iL^$x0%Prmc*700x\65;kYw;^(ew5efv] qKZS;\c zr Gg^tL)QMpJhzHrEO *~\,g -. \@%+TB)9~D ru^j:c;1JJ u]5ZU._] ueV^+/5 14) What is the maximum deflection allowed for flexible pipe? 7) Install the longitudinal perforated pipe at the bottom of the trench without bedding material. SECTION 7- STORM SEWER 7.1. pipe stiffness 65 psi) 6) An end wall for the protection of the outlet pipe. Length of run = 856 ft. (Pipe Diameter lift thickness) + (Fill above pipe lift thickness) (1 lift) = 3) (36 in. (Provide three) a) b) c) 2) Explain when a rock correction is utilized and what happens to the laboratory maximum dry density and optimum moisture values after a rock . The moisture content at which a soil can be compacted to its maximum dry density with the least amount of comparative effort is called the optimum moisture content. Schedule PH (Form 1120) (1960). For written and proficiency exams, contact the community colleges to schedule either an in-person or remote exam. small voids and is compact. True or false: A soil that contains a high percentage of fines is more affected by water that one with a low percentage of fines. SECTION 9. suzanna_gevorgyan. If vibratory rollers are used in the backfill operations, vibratory motors shall not be activated until at least 3 feet of backfill has been placed and compacted over the pipe. Grades and certifications are issued within 15-30 business days after the testing date. There is still an opportunity to test on the last day of class; however there is . 2016v1.0 Chapter 4 12, 13 Typical Pipe and Box Culvert Backfill: BACKFILL TESTING FREQUENCIES Test Location 4 Compacted Lift Foundation One test per lift on alternating sides of the pipe for each 300 feet of pipe or portion thereof. bc the dense gradation provides more strength by filling voids. americanwick.com 800.242.WICK (9425). endobj 1) Metal pipe gauge: Examples 12, 14, 16 2) Metal pipe corrugation dimensions: Examples 2 2/3 x ; 3 x 1 3) Concrete pipe strength: Examples Class III, IV or V 4) ph and Resistivity needs to be known by designer 2016v1.0 Chapter 4 5, 6 5) Maximum height of cover: Maximum height for each type of pipe must be given Compare information from drainage summary with maximum cover chart for pipe to be used Check standards for minimum height of cover Measuring Metal Pipe Corrugation example 3 x 2 3 2 Examples of concrete pipe stamp: They typically include manufactured date, diameter, pipe type, class, place of manufacturing. What term describes that the particles in a mixture are sized so that they fill most of the voids and there is very little space in between soil or stone particles? All materials, Ohio Department of Transportation Division of Production Management Office of Geotechnical Engineering Geotechnical Bulletin GB 1 PLAN SUBGRADES Geotechnical Bulletin GB1 was jointly developed by the Offices, CHAPTER 6 - SANITARY SEWER 6.1 GENERAL This section covers the requirements for PVC plastic sewer pipe materials and installation in sanitary sewer construction.
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