UFC 4-150-07
19 June 2001
structures and underwater sonic and ultrasonic equipment for detecting voids in
timbers or concrete and thickness of structural steel. It also includes underwater
magnetic particle testing to locate and define surface discontinuities in magnetic
materials. Figure 5-2 shows typical equipment applications used in underwater
inspections.
5.3.4.3 Recording Tools. Recording tools and equipment are required to
provide a complete documentation of the condition of the structure. Simple tools
such as a clipboard, forms, and cassette recorder for above water inspections; or
Plexiglas slate and grease pencil for underwater inspection, provide the basic
documentation tools. More in-depth documentation may be obtained with above
water or underwater photography using either colored still-frame cameras,
colored video, or closed-circuit television. The latter may be very valuable in
expediting major underwater inspections. For underwater inspections in turbid
water, a clear-water box may be fitted to the lens of the photographic or video
equipment to improve visibility between the lens and surface to be inspected.
5-3.5
Preparing Inspection Documentation. For the information to be
useful, documentation must be clear and concise. Inspectors should maintain
daily logs of inspection details including measurement data, locations of
observation, and water depths, if relative. Fill out inspection forms as the
inspection progresses, and complete the reports soon after the inspection has
been finished. Standard forms and report formats facilitate the documentation
procedure and are essential for comparing the results of the present inspection
with past and future inspections. Figure 5-3 is a standard form that may be used
for reporting the condition of piles; Figure 5-4 is an explanation of the condition
ratings for concrete piles used on the form; and Figure 5-5 is an explanation of
the condition ratings for timber piles. Steel pile inspection results are usually
recorded in terms of remaining metal thickness.
5-10
Previous Page
