00415.00 364 Section 00415 - Video Pipe Inspection
Description
00415.00Scope - This Work consists of insp ecting pipes by video accompanied by a recorded
narrative and written report of the findings.
Equipment
00415.20Mainline Inspection Equipment - Use the following Equipment unless otherwise
approved.
90 degree angle to the axis of the pipe and a zoom ratio of at least 40:1. A light source that provides a clear image of the full pipe circumference and all areas of concern. Provide a camera and lighting system capable of operating in 100% humidity conditions.
ranging in size from 12 to 60 inches and does not obstruct the camera view. A vertical and horizontal adjustable camera to maintain the camera along the approximate center of the pipe at all times. The transporter will have an adjustable operating speed while recording not to exceed 30 feet per minute.
remote meter counter displaying length along the profile in tenths of feet and indicating the camera’s position from the starting point. Calibrate the meter counter to be accurate within 0.5 percent over the length of pipe being inspected. The device must be capable of recording a digital video with a minimum resolution of 720 x 480.
00415.21Service Line Lateral Inspection Equipment - Use the following Equipment unless
otherwise approved.
line laterals. The imaging capabilities and illumination requirements for the push came ra system are similar to 00415.20(a). Provide a hand- held push camera on site at all times.
inspection system that can be launched into a service line lateral connectio n while inspecting mainline. The lateral launch camera is capable of inspecting the length of the lateral from the mainline connection to beyond the edge of the Right -of-Way . The imaging capabilities and lighting requirements for the lateral launch camer a system are similar to 00415.20(a).
camera system that can be detected from the surface to determine the horizontal and vertical position of the pipes below ground. Provide a locator device on site at all times.
00415.22Mainline Inspection Equipment with Laser Profiler - Provide laser profiler, software and
equipment according to 00415.20 and ASTM F3080.
00415.23Manual Inspection - For pipes larger than 48 inches and when the entire length of the pipe
is accessible, a handheld video camera and a light source may be used. The video camera and lighting must meet the requirements of 00415.20(a). A digital camera may be used as a supplement for taking photographs. Use a light source that provides a clear, focused and high quality photograph of the culvert surface under all conditions.
00415.42 365 Construction
00415.40Video Inspection :
video inspection. Allow the Engineer access at all times , to observe the video monitor and all other operations.
that would prevent the video camera and laser profiler from moving through the pipe or adversely affect the accuracy of the survey. Remove and dispose of all debris according to 00290.20.
00415.41Pre -Installation Video Insp ection - Perform a pre-installation video inspection at least
5 Calendar Days before beginning Work. Begin Inspection at one end of the pipe and proceed through the entire pipe length at a speed not greater than 30 feet per minute. Move the camera through the pipe and provide a continuous 360 degree pan of each pipe joint. Stop and record all cracks, deformities and defects to document the pipe condition, including the location of all lateral connections to the mainline.
Provide a verbal narrative on each video inspection recording. Include the company name, operator’s name, date and time of the inspection, site location, description of the pipe type, size and length, and direction of travel. As part of the r ecorded audio portion of the video, include a description of all observed defects, deformities, location of lateral connections and locations where digital photographs are taken.
If, during the inspection operation, the camera will not pass through the entire segment, set up Equipment so that the inspection can be performed from the opposite access point back to the obstruction.
Each video inspection will displ ay and record an on- screen header containing: location, pipe type, size, date and time of inspection, direction of travel, distance and owner.
Measure crack wid ths using a feeler gauge or crack comparator ruler capable of measuring 0.01 inches. Use a tape measure to measure the widest opening at each joint at least to the nearest 1/2 inch.
00415.42Post Installation Video Inspection - Perform post construction video inspection
according to 00415.40 and 00415.41. Video inspect the pipe interior no sooner than 30 Days after the trench backfill and compaction have been completed, and before any paving is performed. If the Contract duration does not permit a 30 Day waiting period the Engineer may adjust the duration period.
flexible pipe including plastic, metal, and aluminum pipe using one of the approved following methods.
inspection according to ASTM F3080. Use video inspection Equipment meeting the requirements of 00415.22 .
00415.70 366 In addition to 00415.41(b):
Measure the deflection of the pipe using either a metal or a fabric tape and read at least to the nearest 1/2 inch. Measure the smallest inside diameter three times for each pip e section in the run. Take the first measurement vertically from the crown to invert (12 o’clock to 6 o’clock positions). Take the second measurement by rotating 60 degrees from vertical (2 o’clock to 8 o’clock positions). Take the third measurement by rotating 120 degrees from vertical (4 o’clock to 10 o’clock positions). For all measurements, stretch tape to full extent across the inside of the pipe.
Calculate percent deflection using the following formula: Percent Deflection = [(D1 - D2) ÷ D1] × 100
where:
D1 = Initial measurement according to AASHTO Nominal Diameter D2 = Most deflected measurement in each pipe run after construction
Finishing and Cleaning Up
00415.70Video Inspection Recording and Inspection Report - Furnish two copies of all
preconstruction and post construction inspection video and reports within three Calendar Days after completing the inspections. If inspection video or audio recording quality is poor, the Engineer has the right to reject the recording and request new video inspection at no additional cost to the Agency.
and joint along with the distance from the inspection starting point. Provide still digital images in the report along with a reference and description of each defect, deformity and joint.
If a manual deflection test was performed provide a written deflection inspection report that includes each deformity with the distance from the inspection starting point. Include in the report all measurements , calculations and still digital images and descriptions of each deformity .
00415.71Corrections to Deficiencies in Work - Submit a repair plan to the Engineer for approval
of all detrimental pipe deficiencies that are revealed in the video recording and written report. Repair all deficiencies within 48 hours after receiving notification from the Engineer . Re -perform the video inspection, submit the new video, and update the written report at no additional cost to the Agency.
Where the pipe deflection is in excess of 5 percent of the nominal diameter submit a remediation plan to the Eng ineer. The remediation plan must be a stamped Working Drawing according to 00150.35. Replace pipe where the deflection exceeds 7.5 percent of the nominal diameter at no additional cost to Agency.
Measurement
00415.80Measurement - The quantities of W ork performed under this Section will be measured
according to the following:
The length will be measured, with no deduction for Structures or fittings, along the pipe flow line from center to center of manholes, inlets, special sections, or the ends of pipe, whichever is applicable. Pipes with sloped ends will be measured from the top of the sloped end section. 00415.90 367
length, will be measured on the unit basis. When multiple service line laterals are connected to the mainline by a single shared connection, each service line lateral will be counted separ ately.
will be measured on the length basis. The length will be measured, with no deduction for Structures or fittings, along the pipe flow line from center to center of manholes, inlets, special sections, or the ends of pipe, whichever is applicable. Pipes with sloped ends will be measured from the top of the sloped end section.
basis.
Payment
00415.90Payment - The accepted quantities of Work performed under this Section will be paid for
at the Contract unit price, per unit of measurement, for the following items:
Pay Item Unit of Measurement
Payment will be payment in full for furnishing all Equipment , labor, and Incidentals necessary to complete the Work as specified. No separate or additional payment will be made for:
• providing the hand-held push camera and locator device on site at all times • excavation Work • restoration Work