1 PIPE INSPECTION AND REPAIR Larry Ritchie February 23, 2010
2 PIPE INSPECTION AND REPAIR The Florida Department of Transportation builds and maintains hundreds of miles of underground infrastructure as part of its transportation system. Building, repairing and maintaining drainage systems is expensive and must be done correctly to ensure the expected service life and mitigate any future problems.
3 PIPE INSPECTION AND REPAIR Over the last 5 years, the Department has spent approximately 175 million dollars on drainage pipe and over 9.5 million dollars on pipe repair. With costs like these, it is extremely important to ensure that pipe is installed correctly, inspected thoroughly and replaced or repaired correctly when warranted.
4 PIPE INSPECTION AND REPAIR The purpose of this presentation is to: Discuss the Standard Specifications for drainage installation and inspection requirements. Review some of the common issues associated with pipe installation. Highlight g acceptable repair materials and methods found in the Pipe Repair Matrix. Discuss the future of pipe inspectionand repair.
5 DRAINAGE INSTALLATION All work on FDOT projects is governed by the Standard Specifications found in the contract documents. Drainage installation is covered in at least two separate sections Section 5 and Section 430 of the Standard Specifications.
6 DRAINAGE INSTALLATION Section 5 Control of Work describes some of the general guidelines dl associated with project construction. Section 5 3 Conformity of Work with Contract Documents states the contractor will perform all work and furnish all materials in reasonably close conformity with the lines, grades, cross sections, dimensions, and material requirements, including tolerances, as specified in the Contract Documents.
7 DRAINAGE INSTALLATION Section 430 Pipe Culverts Lists all of the tolerances and construction requirements for furnishing and installing drainage pipe pp and end sections at locations called for in the plans. Acceptable pipe materials Directions for laying gpp pipe Final Inspection requirements Specific requirements for each pp pipe type
8 DRAINAGE INSTALLATION These Specifications are in place to help ensure the Department receives quality materials and workmanship on all FDOT construction projectsand to help prevent..
9 DRAINAGE INSTALLATION
10 FINAL PIPE INSPECTION Allows thecontractor and thedepartment to obtain a first hand account of the condition of culvert pipe installed on a construction project. Provides the Department with some assurance that the drainage system was installed correctly and is functioning properly.
11 WHEN TO INSPECT Section states that upon completion of placement of concrete pavement or the placement of structural asphalt, but prior to the placement of the asphalt friction course, dewater installed pipe and provide the Engineer with iha video recording schedule hdl allowing for pipe videoing and reports to be completed and submitted to the Department and reviewed prior to the continuation of pavement.
12 FINAL PIPE INSPECTION The Department e t encourages agescontractors to perform inspections on their culverts and storm sewers as soon as possible to discover and mitigate any problems that occurred during installation. However, a contractor is required to submit their video report to the Department upon completion of concrete pavement or placement of structural asphalt.
13 FINAL PIPE INSPECTION Video inspection prior to placement of the p p p friction course allows the contractor to discover and mitigate any problems with pipe installation with fewer obstacles. This saves everyone time, money and headaches!
14 FINAL PIPE INSPECTION Overall, the quality of the video inspection documentation has improved. However, there are still several areas of concern: 1. Camera Speed during the video inspection 2. Partial inspection or completely missed joints 3. Only inspecting joints and not evaluating the entire pipe
15 CAMERA SPEED Move the camera through the pipe at a speed no greater than 30 feet per minute.
16 JOINT INSPECTION Film the entire circumference at each joint.
17 DOCUMENT DEFECTS Stop the camera and pan when necessary to document defects.
18 FINAL PIPE INSPECTION It is important to remember that the video report is in fact part of the Specifications and can be rejected if it is not performed according to Section 430. Make sure your pipe inspector is familiar with the language in Section or he may be performing this service more than once!
19 Common Pipe Issues Seen During Inspection Over the past year, the majority of pipe issues reviewed and repaired have been: Leaking Joints Joint Gaps Deflection Cracking
20 LEAKING JOINTS
21 LEAKING JOINTS Section describes the egeneral e guideline e for laying pipe on FDOT Roadway construction projects. All joints must meet the following minimum standards:
22 LEAKING JOINTS Soil tight joints must be water tight tight to 2 psi. Water tight ihjoints must be water tight ihto 5 psi unless a higher pressure rating is required in the plans. Leaking joints occur in both flexible and rigid pipe pp types.
23 LEAKING JOINTS If joints are leaking, it needs to be determined if the hydrostatic groundwater head exceeds the performance criteria (e.g. greater than 5 psi) and could cause the joint to leak. A quick determination can be made using the hydraulic equation: p = wh
24 LEAKING JOINTS p = pressure w = the specific weight of water, 62.4 pcf h = is the head, or the depth below the water surface So, solving for h gives you h = p/w.
25 LEAKING JOINTS h = (2 psi x 144 in 2 /ft 2 )/62.4 pcf = 4.61 ft h = (5 psi x 144 in 2 /ft 2 )/62.4 pcf = ft
26 LEAKING JOINTS 2 psi joints should not leak if they are less than 4.61 feet below the water table. 5 psi joints should not leak if they are less than feet below the water table. If your joints are leaking and your project meets the conditions above, the joints are either defective or not installed correctly.
27 LEAKING JOINTS So, if your joints are leaking what do you do: The contractor submits proposed repairs to the Engineer for review. The Engineer will determine which method of repair to use that is acceptable to the Department. The solutions can range from methods in the Repair Matrix to nothing depending on the Engineer s judgment.
28 JOINT GAPS Section addresses gap tolerances for concrete pipe with rubber gaskets: 5/8 for 12 to 18 inch diameter pipe 7/8 for 24 to 66 inch diameter pipe pp 1 for pipe diameters 72 inches or greater
29 JOINT GAPS Where minor imperfections in the manufacture of the pipe create an apparent gap in excess of the tabulated gap, the Engineer will accept thejoint provided that the imperfection does not exceed 1/3 the circumference of the pipe, and the rubber gasket is 1/4 inch or more past the pipe joint entrance taper.
30 JOINT GAPS
31 JOINT GAPS Entrance taper on Reinforced Concrete Pipe Required amount of freeboard if pipe meets the gap tolerance in the Specs. Rubber Gasket
32 JOINT GAPS What happens if the joints that are installed are outside of the tolerances? Section states: Where concrete pipes are outside of these tolerances, replace them at no expense to the Department. Do not apply mortar, joint compound, or other filler to the gap which would restrict the flexibility of the joint.
33 JOINT GAPS Relatively large amount of freeboard between the gasket and the end of the bell
34 JOINT GAPS Thermoplastic pipes pp have a significant amount of freeboard in the bell design and are inherently less susceptible to leakage as a result of joint gaps. NCHRP is currently reviewing design of culvert joints.
35 JOINT GAPS So, if you have joints gaps in your drainage system, what do you do: The contractor submits proposed repairs to the Engineer for review. The Engineer will determine which method of repair to use that is acceptable to the Department. The repairs can range from methods in the Repair Matrix to nothing depending on the Engineer s judgment.
37 DEFLECTION All flexible pipe types must meet the Department s deflection criteria in Section 430. Pipe deflected d5% or more of the certified actual mean diameter of the pipe at final inspection i shall hllbe replaced at no cost to the Department.
38 DEFLECTION The Department is aware of the AASHTO standard for deflection and the critical limits of deflections for flexible pipe types. However, the language in the current Specifications states that 5% deflection is the cutoff for acceptance for flexible pipe types.
39 DEFLECTION So, if you have pipe runs with deflections greater than 5% of the certified mean diameter, you currently only have one option: 1 R d l th dfl td ti 1. Remove and replace those deflected sections at no cost to the Department.
41 CRACKING Cracking can occur in all pipe types. The Engineer will make the determination i on the appropriate action. If the pipe pp is cracked during installation, it is usually due to the pipe being overloaded or not backfilled properly. p
42 CRACKING Cracking can affect the structural integrity of the pipe. The limits of cracking are defined in several documents by reference in the contract.
43 CRACKING AASHTO Section states tt that t Cracks having widths equal to or greater than 0.01 in and determinedto to be detrimental shall be sealedby a method approved by the Engineer. An evaluation shall be conducted by the Contractor and shall be submitted to the Engineer for review and approval considering the structural integrity, environmental conditions, and the design service life of the culvert.
44 CRACKING So, if you have cracks in Reinforced Concrete Pipe that meet or exceed the in crack criteria or any cracks in a flexible pipe type, what do you do? Submit an evaluation of the cracks considering the structural integrity, environmental conditions andthe design service life of the pipe; and/or submit proposed repairs to the Engineer for review. The Engineer will determinewhich method of repair to use that is acceptable to the Department. The repairs can range from methods in the Repair Matrix to nothing depending d on the Engineer s sjudgment.
45 So, how do we fix this stuff? Currently, the Department relies on Section 431 Pipe Liner to address pipe repair issues. This specification is under review for updating to include the most current pipe repair materials and methods availableto the contractor. NCHRP Culvert Rehabilitation to Maximize Service Life While Minimizing Direct Costs and Traffic Disruption
46 PIPE REPAIR Information on the NCHRP study can be found here: In lieu of the results of the NCHRP study, the Department has developed a Pipe Repair Matrix to assist the Engineer at the District level in making decisions. This matrix is a GUIDELINE and does not replace proper pipe installation or sound engineering judgment.
47 MATRIX BACKGROUND The Repair Matrix is a compilation o of Department e t Specifications, Design Standards and repair procedures submitted by members of FDOT s Pipe Advisory Group (PAG) and the Pipe Installation Task Group (PITG). Both groups consist of members from the pipe manufacturing industry, laser profiling and inspections industry and technical experts in the field of drainage pp pipe.
48 MATRIX BACKGROUND The Department asked its PITG members to submit repair methods for each of their particular pipe types and to provide any additional information that may be pertinent for repairs. The PITG members responded with a variety of repairs they deemed suitable for their particular pipe types.
49 MATRIX BACKGROUND The Department compiled the information into an interactive spreadsheet for use by the Engineer when reviewing damaged pipe and possible repair methods. The Matrix is a living document that will change as repair technology is updated and current methods are reviewed for their durability and performance.
50 SO, LETS ENTER..
51 PIPE REPAIR MATRIX The Department encourages you to review the Pipe Repair Matrix. The Matrix can be found on the FDOT Construction Homepageunder Contractor Issues. Or, it can be found here: ctorissues/pipematrix/matrixmain.shtm
52 FINAL WORDS ON THE PIPE REPAIR MATRIX Remember, e,the Matrix is a GUIDANCE document and does not replace the Specifications, proper installation or sound engineering judgment. The Matrix is an evolving document that will continue to change with new advancements and additional research in pipe repair methods. Ignoring the problem is not an option!
53 WHAT S AHEAD FOR 2010
54 FDOT DIRECTION IN 2010 Since last year, the Construction Office has begun process reviews for drainage installation and spoken to both District Personnel and Contractors regarding pipe inspection and repair. Based on these reviews and interactions with CEIs and Contractors, the Department has noted opportunities for improvements in these Specifications.
55 OPPORTUNITIES IN 2010 Some of the opportunities ii include: Standardizing Final Reports. Review of variability among equipment manufacturers. Increase training on interpretation of the Final Inspection Reports.
56 GOALS FOR 2010 The Department is working on several updates to Section 430, the laser profiling calibration criteria and Section 431 to address the some of the previous items. This will be a partial update to the Specifications. We will have future updates addressing early pipe inspection and additional repair methods once those research projects are concluded.
57 UPDATES TO SECTION 430 Section General Update this section of the Specification to require 5 psi as the minimum joint standard for all pipe applications. Higher pressure ratings may be required in the plans. Completed January 2010 Section Final Pipe Inspection Require the removal of sediment or any other dbi debris prior to pipe inspection. This is incidental to the cost of the pipe installation.
58 UPDATES TO SECTION 430 Final Pipe Inspection Reports Re writing the inspection requirements to focus on 3 core areas and eliminate some redundant terminology. These areas include: 1. Joint Gap Report 2. Pipe Ovality Report 3. Pipe Defect Report
59 JOINT GAP REPORT A joint gap report would consist of a plan view documenting all of the joints in a pipe run that do not meet the joint gap tolerances found in Section A photo of the joint and the actual measurement would be included dfor each location that is out of tolerance.
60 PIPE OVALITY REPORT The Pipe Ovality Report would include an initial measurement of the pipe diameter prior to profiling and contain a graph documenting the percentageof Ovality or deviation from the original pipe diameter over the entire distance of a pipe run. The 5% deflection limit would be highlighted and The 5% deflection limit would be highlighted and any measurement over 5% would be displayed on the report in the location where it was noted.
61 PIPE DEFECT REPORT Similar to the Joint Gap Report, the Pipe Defect Report would consist of a plan view graphic documenting the location of all observed pipe defects in the pipe run. Defects are considered as those items found during inspection that do not meet the Specifications. At each location, the operator would note the defect p and provide a still image of the problem with the plan view.
62 INSPECTION REPORTS The Department will develop some sample reports for each of these areas and coordinate with the laser profiling and video inspection equipment manufacturers to provide a standard report that can be used by any system but present the information in a consistent format.
63 UPDATES TO SECTION 430 Section Video Report The technical portion of this section will be updated to the most current video format and may include new resolution requirements for videocameras cameras. Clarify that the entire pipe is to be inspected, not just at the joints. Require that the camera speed be included on the pipe video.
64 UPDATES TO SECTION 430 Sections & Specific Requirements for Corrugated Metal, Corrugate Polyethylene, and Polyvinyl Chloride Pipe FDOT is evaluating 100% compaction when backfilling all flexible pipe types.
65 UPDATES TO SECTION 431 Section Acceptance Inspect the complete rehabilitation by means of closed circuit television Provide theengineer with videos of all preliminary and final inspections. Strengthen this language to make sure that video documentation of all repairs is provided to the Engineer prior to final acceptance.
66 LASER PROFILING In an effort to improve the Specifications, the Department met with the manufacturers of all the Laser Profiling equipment presently used in the State of Florida on FDOT jobs. On April 24, 2009, FDOT convened its first Laser ProfilingManufacturersGroup to discussreport standardization, calibration criteria, equipment standards, and the Department s needs.
67 LASER PROFILING As a result of this meeting, the Department is moving toward performance standards for laser profiling and video inspection equipment. FDOT will also require that any laser profiling equipment proposed be certified by an independent, accreditedtesting testing laboratory to meet the calibration criteria before it can be used on construction projects.
68 LASER PROFILING FDOT is also researching: 1. Requiring pipe inspection contractors to measure the diameter of the pipe at the beginning i of the inspection. i 2. Requiring video documentation of a field calibration of the laser profiling equipment using a known standard prior to inspection. 3. Requiring pipe inspection contractors to provide the camera speed on the video display. 4. Requiring training and certification for any person operating the video inspection and laser profiling equipment.
69 REPORT INTERPRETATION TRAINING The Construction Office intends to develop trainingon pipereport interpretation, compliance with the technical requirements of the Specifications and proper verification of the laser profiling calibration criteria.
70 AND FINALLY,
71 QUALITY ASSURANCE REVIEWS! Currently, FDOT is in the process of purchasing its own laser profiling and video inspection equipment. TheDepartment will begin conducting Quality The Department will begin conducting Quality Assurance Reviews (QARs) on randomly selected jobs in each of the Districts for the quality of the inspection reports submitted to FDOT.
VIDEO INSPECTION AND LASER PROFILING IN FLORIDA AASHTO SOC Conference Larry Ritchie, FDOT August 14, 2013 PIPE INSPECTION Over the last 5 years, the Department has spent approximately 175 million dollars
SECTION 724 PIPE CULVERTS 724.1 Description. This work shall consist of providing pipe or pipe arch of the diameter or shape designated, laid upon a firm bed and backfilled as specified. Where appropriate
SECTION 55 PIPE FOR STORM DRAINS AND CULVERTS (FAA D-701) 55-1 GENERAL The Contractor shall perform all work required by the plans for construction of pipe for storm drains, precast polymer trench drains
6.01 SCOPE The work covered by this section of the specifications consists of the furnishing of all plant, labor, materials, equipment and supervision and performing all operations involved in the construction
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. 1.02 REFERENCES
CHAPTER 9 SEWER / STORM DRAIN / IRRIGATION LINES SECTION 9.01 GENERAL This section covers the requirements for piping materials and installation of Lehi City sewer, storm drainage and irrigation collection
State of Illinois Department Of Transportation CONSTRUCTION INSPECTOR S CHECKLIST FOR STORM SEWERS While its use is not required, this checklist has been prepared to provide the field inspector a summary
CLEANING, INSPECTION, AND TESTING OF SEWERS PART 1 - GENERAL 1.01 SECTION INCLUDES A. Cleaning, Inspecting, and Testing Sanitary Sewers B. Cleaning, Inspecting, and Testing Storm Sewers C. Cleaning and
402.02 Section 402. STORM SEWERS 402.01. Description. This work consists of constructing storm sewers of the size and class required, including excavation, bedding, and backfill. 402.02. Materials. Provide
SECTION 08000 STORM DRAINAGE 08010 DESIGN A. Location B. Sizing TABLE OF CONTENTS 08020 MATERIALS A. Pipe Materials B. Structure Materials C. Installation D. Inlets and Outlets 08030 INSPECTIONS AND TESTING
SECTION 33 41 03 POLYVINYL CHLORIDE (PVC) PIPE PART 1 GENERAL 1.01 SECTION INCLUDES A. This section includes all labor, materials, equipment, and incidentals required and installation of Polyvinyl Chloride
PART 1 GENERAL 1.1 SCOPE A. This item shall include the work necessary for the installation of storm sewer line construction. B. Reference Section 3800 Trenching and Backfill and the General Conditions,
SECTION 02612 PART 1 GENERAL 1.1 SUMMARY A. Section Includes: Furnishing and installing nonreinforced concrete sewer pipe. Provide concrete sewer pipe less than 12 inches in diameter, and in other sizes
The purpose of this application example is to provide assistance to small and medium sized rural communities in the drafting of documents necessary for the efficient operation of water, wastewater, and
TECHNICAL NOTE Culvert Sliplining and Lining of Casings with HPPipe TN 5.14 February 2010 Introduction It may be at times necessary, in an aging infrastructure, to rehabilitate drainage and sanitary lines
Section 33 0200- Page 1 of 4 PART 1 - GENERAL 1.1 DESCRIPTION OF WORK The work of this Section includes furnishing and installing Reinforced Concrete Pressure Pipe as shown on the Drawings and as specified.
PART 1 - GENERAL Section 02702 SEWER PIPE INSTALLATION AND TESTING 1-1. SCOPE. This section covers the installation and testing of all sewer pipe furnished under the following specification sections: Concrete
SANITARY SEWER SPECIFICATIONS OCTOBER 2003 HARVEST-MONROVIA WATER, SEWER, AND FIRE PROTECTION AUTHORITY SECTION 1.00 1.10 Purpose The purpose of this document is to assemble the sewer specifications, policies,
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,
QUALITY, PERFORMANCE AND ECONOMY COMBINED LANE S HDPE DRAINAGE PIPE Scan for more information on Lane s HDPE product line. Lane provides the complete product line to meet all your HDPE drainage needs -
SECTION 5200 - STORM SEWER PART 1 - GENERAL 1.01 SCOPE: This Section covers installation of storm sewer mains and culverts. Topics include permits and fees, trench widths, pipe laying, bedding, initial
SECTION 9 SEWER/DRAINAGE LINES 9.1 GENERAL This section covers the requirements for piping materials and installation in the Cedar Hills City sewer and drainage collection system. All materials and workmanship
DIVISION 2 - SEWERAGE AND DRAINAGE SECTION 02720 - STORM DRAIN SYSTEMS PART 1 - GENERAL 1.01 DESCRIPTION A. Furnish and install all storm drains, including manholes, inlets, service lines and other appurtenant
SECTION 02763 PART 1 G E N E R A L 1.01 SECTION INCLUDES A. Repairs to existing sewer lines by replacing short lengths of failed pipe. 1.02 UNIT PRICES A. Measurement for point repairs is on a unit price
SECTION INCLUDES Domestic Water Fire Water Service Water Well Sanitary Sewer Storm Drains Foundation Drainage RELATED SECTIONS 03 30 00 Concrete 21 00 00 Fire Suppression - Sprinklers 22 00 00 Plumbing
SECTION 33 31 00.11 GRAVITY SANITARY SEWERS PART 1: GENERAL 1.01 SCOPE A. Gravity sanitary sewers and appurtenances. 1.02 SUBMITTALS A. Conform to requirements of Section 01 33 00 Submittals. B. Submit
Appendix C: Pipe Material Policy Page C-1 PIPE MATERIAL POLICY Policy: This policy will replace all previous policies regarding the selection of pipe material for cross drains, drive pipe, drop pipe, storm
CULVERT AND STORM SEWER PIPE MATERIAL POLICY ON FEDERALLY FUNDED LOCAL AGENCY PROJECTS UPDATED March 2013 Background Section 5514, a final rule for SAFETEA-LU was issued on November 15, 2006 and became
1.0 GENERAL 1.1 DESCRIPTION This section addresses the procedures to be employed for pipe bursting existing water/sewer pipelines, as identified on the drawings, and replacing with new Restrained Joint
SECTION 014500 QUALITY CONTROL PART 1 GENERAL 1.01 RELATED REQUIREMENTS A. Drawings and General Provisions of Contract, including General and Special Conditions and other Division 1 Specification Sections,
CONCRETE SEGMENTAL RETAINING WALL SYSTEM PART 1: GENERAL SPECIFICATIONS 1.01 Work Included A. Work shall consist of furnishing and constructing a Rockwood Classic 8 with PCS unit segmental retaining wall
General All sanitary sewers, manholes and force mains shall be acceptance tested, as hereinafter specified in the presence of a City representative. Acceptance testing shall be performed after backfilling
Division 53: Slip-Lining of Existing Sewer Line 53.01 GENERAL: This section includes all labor, materials, transportation, equipment necessary to rehabilitate by means of Instituform deteriorated sections
CHAPTER 6 - SANITARY SEWER 6.1 GENERAL This section covers the requirements for PVC plastic sewer pipe materials and installation in sanitary sewer construction. 6.2 PIPE PVC gravity sewer pipe and fittings
Session: HDPE Pipe Test Rafael Ortega, Vice President, Lockwood, Andrews & Newnam Education Master of Business Administration University of Houston, 1985 Bachelor of Science, Civil Engineering University
APPENDIX K PIPE INSPECTION **Virginia Test Method 123** Post Installation Inspection of Buried Storm Drain Pipe and Pipe Culverts June 25, 2010 SCOPE For all roadway projects that are constructed by private
PIPE LINING (Revised 05-01-12) The Standard Specifications are revised as follows: SECTION 725, DELETE LINES 1 THRU 317. SECTION 725, BEGIN LINE 1, INSERT AS FOLLOWS: SECTION 725 SLIP LINING OF EXISTING
Storm Sewer Trenchless Upgrade Alternatives and Recommendations Background Approximately 1,930 feet of the 40-inch and 42-inch CMP storm sewer pipe from manhole M22 to manhole M12 will be evaluated for
601.1 601.2(a) SECTION 600 INCIDENTAL CONSTRUCTION SECTION 601 PIPE CULVERTS 601.1 DESCRIPTION This work is construction or reconstruction, inspection, and cleaning of pipe culverts; including subsurface
Beacon Hill Sewer District Standard Specifications Residential Gravity Side Sewer Including Design Criteria and Standard Construction Drawings Residential Gravity Side Sewer Design Criteria 1. Provisions
SUBDRAINS AND FOOTING DRAIN COLLECTORS PART 1 - GENERAL 1.01 SECTION INCLUDES A. Subdrains B. Subdrain Cleanouts and Outlets C. Footing Drain Collectors D. Storm Sewer Service and Connections 1.02 DESCRIPTION
CCTV of Stormwater Systems Cairns Regional Council Commentary Guidelines Introduction Councils inherit assets through the donated asset process. In doing so, Councils immediately receive assets that are
1.0 GENERAL 1.1 DESCRIPTION: This specification shall cover the rehabilitation of existing sanitary sewers using the GRUNDOCRACK PIPE BURSTING SYSTEM. Pipe bursting is a system by which the pneumatic bursting
SECTION 33 41 00 REINFORCED CONCRETE PIPE PART 1 GENERAL 1.01 SECTION INCLUDES A. This section includes construction of reinforced concrete pipe for storm drainage, culverts, and sanitary sewer, including
1.0 INTENT REHABILITATION OF UNDERGROUND SEWER LATERAL PIPES 1.01 It is the intent of this specification to provide for the reconstruction of pipelines and conduits by the installation of a resin-impregnated
CCTV PIPE INSPECTION AND EVALUATION For RUNWAY 17L-35R At ST. PETERSBURG CLEARWATER INTERNATIONAL AIRPORT February 2011 CCTV PIPE INSPECTION AND EVALUATION RUNWAY 17L-35R ST. PETERSBURG CLEARWATER INTERNATIONAL
SECTION LS 2530 SANITARY SEWERS PART 1 GENERAL 1.1 SUBMITTALS A. General: Submit the following in accordance with The General Conditions. 1. Product data for drainage piping specialties. 2. Shop drawings
CONCRETE SEGMENTAL RETAINING WALL SYSTEM PART 1: GENERAL SPECIFICATIONS 1.01 Work Included A. Work shall consist of furnishing and constructing a Rockwood Vintage TM unit segmental retaining wall (SRW)
Public Works Department Engineering Division VERIFICATION TESTING GUIDELINES FOR CONTRACTORS CITY OF BERKELEY PRIVATE SEWER LATERAL ORDINANCE BMC Chapter 17.24 Effective November 3, 2014 A consent decree
SECTION 33 41 13 PUBLIC STORM PART 1 - GENERAL 1.01 SECTION INCLUDES A. Storm drainage piping, fittings, and accessories at proposed station areas and locations other than under and immediately adjacent
PART 1 GENERAL 1.1 SECTION INCLUDES A. Low Pressure Air Test B. Deflection Test 1.2 RELATED SECTIONS A. Section 02730 Sanitary Gravity Sewer Lines B. Section 02732 CCTV Inspection of Gravity Sewer Lines
DMS - 7310 REINFORCED CONCRETE PIPE AND MACHINE-MADE PRECAST CONCRETE BOX CULVERT FABRICATION EFFECTIVE DATE: APRIL 2012 7310.1. Description. This specification will govern for the fabrication of machine-made
SECTION 33 11 00.11 POLYVINYL CHLORIDE (PVC) PIPE PART 1: GENERAL 1.01 SECTION INCLUDES PVC pressure pipe and fabricated fittings in nominal sizes 4-inches through 12-inches with cast iron pipe equivalent
CCU Engineering Specifications Section 003300 Effective Date: Nov. 1st, 2011 Page 1 of 5 PRECAST CONCRETE PRODUCTS PART 1 - GENERAL The following specification is intended for use for the design, selection
Sanitary Sewer Pipe Tough pipe for a tough environment SaniTite Sanitary Sewer Pipe delivers the features that engineers, contractors and municipalities demand durability, performance, handling, toughness
SECTION 21 REHABILITATION OF SANITARY SEWER MAINS BY THE PIPE BURSTING AND TRENCHLESS PIPE REPLACEMENT METHOD 21.01 SCOPE: It is the intent of the Specification to define the approved methods and materials
Page 1 of 6 SECTION 1 GENERAL REQUIREMENTS 1. SCOPE OF WORK: The work to be performed under the provisions of these documents and the contract based thereon includes furnishing all labor, equipment, materials,
3.1 OVERVIEW Chapter 3 SEWER CLEANING, INSPECTION AND ASSESSMENT Preventive maintenance protects the investment of the sanitary sewer collection system infrastructure. Higher frequency cleaning of gravity
CITY ENGINEERS ASSOCIATION OF MINNESOTA STANDARD SPECIFICATIONS 2600 Trench Excavation and Backfill/Surface Restoration 2611 Water Main and Service Line Installation 2621 Sanitary Sewer and Storm Sewer
SECTION 02110 - ASBESTOS CEMENT PIPE REPAIRS, DEMOLITION, AND DISPOSAL PART 1 - GENERAL 1.1 WORK INCLUDED IN THIS SECTION A. The WORK of this Section includes the repair, demolition, and disposal of asbestos
ITD Pipe Materials Selection & Specification Procedures July 2011 INTRODUCTION: This technical memorandum is written as a guide to the selection of compliant pipe materials and the elimination of non-compliant
MATERIALS DIVISION MEMORANDUM GENERAL SUBJECT: Precast Concrete SPECIFIC SUBJECT: Quality Control Plan Review Check list; Approved list Nos. 26 and 34; Precast Repair Manual NUMBER: MD 286-06 DATE: December
Electric Engineering Division FIBER CONDUIT RULES AND REGULATIONS TABLE OF CONTENTS I. RULES AND REGULATIONS A. TABLE OF CONTENTS... 2 B. TERMS AND DEFINITIONS... 3 C. DEVELOPER S/CONTRACTOR S RESPONSIBILITIES...
SECTION 701 CULVERT PIPE, ENTRANCE PIPE, STORM SEWER PIPE, AND EQUIVALENTS 701.01 DESCRIPTION. Furnish and install culvert pipe, entrance pipe, and storm sewer pipe. Use units conforming to the dimensions,
SPECIFICATIONS FOR SEWER PIPE AND LINING INSERTION - TRENCHLESS; GENERAL GUIDELINES (As Provided by NASSCO) 1 Intent: The intent of trenchless sewer pipe Insertion is to rehabilitate the existing sewer
7/21/2014 AC 150/5370-10G Section 100 Contractor Quality Control Program 100-01 General. When the specification requires a Contractor Quality Control Program, the Contractor shall establish, provide, and
City of West Linn Public Works Standard Construction Specifications Table of Contents DIVISION SIX STORM DRAIN TECHNICAL REQUIREMENTS... 1 601 PIPE AND FITTINGS... 1 601.01 Description...1 601.02 Materials...1
Bulletin of the Transilvania University of Braşov CIBv 2014 Vol. 7 (56) Special Issue No. 1-2014 FAULTS FOUND IN SEWER PIPES, CAUSES AND REMEDIES T. V. CHIRA 1 Abstract: In the contents of the paper, the
SECTION 33 31 00.13 ABANDONMENT OF SEWER MAINS PART 1: GENERAL 1.01 SECTION INCLUDES A. Abandonment in place, by cutting and capping, of existing sewers, junction structures, manholes, service lines, and