19 June 2001
Budgetary estimates of costs of this M&R, including examples of
how estimates were derived.
Identification of any problems associated with mobilization of
equipment, personnel, and materials to accomplish
Estimate of expected life of each facility.
Recommendations for types and frequencies of future underwater
Information an Inspection Should Provide. There are a number of
reference documents dealing with waterfront inspections. The inspection
procedures and planning factors outlined in this section have been taken from
several of them. Two important references are:
NAVFAC MO-322, Inspection of Shore Facilities, Naval Facilities
Engineering Command, Alexandria, Virginia.
NAVFAC P-990, Conventional Underwater Construction and Repair
Techniques, Naval Facilities Engineering Command, Alexandria, Virginia.
LEVELS OF INSPECTION. For any inspection objective, three levels
of inspection effort are used for inspecting waterfront facilities:
Level I - General Visual Inspection. This inspection involves no
cleaning of any structural elements and, therefore, is the most rapid of the three
types of inspection. The purpose of the Level I inspection is to confirm as-built
structural plans, provide initial input for an inspection strategy, and detect
obvious major damage or deterioration due to overstress, impacts, severe
corrosion, or extensive biological growth and attack.
Level II - Close-Up Visual Inspection. This inspection is directed
toward detecting and identifying damaged or deteriorated areas that may be
hidden by surface biofouling or deterioration and obtaining a limited amount of
deterioration measurements. The data obtained should help estimate the facility's
load capability. Level II inspections will often require cleaning the structural
elements. Since cleaning is time consuming, it is generally restricted to areas
that are critical or which may be representative of the entire structure. The
amount and thoroughness of cleaning to be done is governed by what is
necessary to determine the general condition of the overall facility.
Level III - Highly Detailed Inspection. It is recommended that a
"Level III" above and under water inspection be performed on piers identified for
mooring use during heavy weather conditions. This inspection normally includes
underwater inspections, and will often require the use of nondestructive testing
(NDT) techniques. It may also require using partially destructive techniques, such