EP 1130-2-520
29 Nov 96
(c) assure the necessary drawings and/or measurements of vessels used to haul dredged
material are available to provide a basis for quantity determination of work accomplished;
(d) assure the specifications provide the dredging depth (required + allowable), and a
computation method based on the after dredging survey to determine excess dredging; and
(e) assure specifications are written in order to complete contract requirements in a safe,
timely, and environmentally sound manner.
(5) Firm Fixed Price - Lump Sum Contracts. The firm fixed price - lump sum method of
payment for dredging contracts may be used primarily for maintenance work, when the
contracting officer determines that the rate of shoaling in the navigation channel is slow and/or
predictable over the length of the contract. The District Commander will consider the following
guidelines to assure that a lump-sum contract is effectively used:
(a) acceptance surveys are sufficient to assure that all material is removed from the
required prism and that all contractual requirements are met;
(b) assure specifications are written to allow users of all types of dredge plant capable of
efficiently, effectively, and safely performing the work in an environmentally sound manner;
(c) define the necessary parameters in the contract specifications so that prospective
bidders can prepare reasonable bids. (District commanders will make available, and contract
specifications shall indicate which information is available to prospective bidders.); and
(d) justify the use of firm fixed price - lump sum contracts. (The justification and use of
firm fixed price - lump sum contracts will be approved by HQUSACE.)
8-7. Navigation Channel Conditions.
a. Hydrographic Surveys (For Dredging Projects). The performance of hydrographic
surveys in support of dredging shall be in accordance with EM 1110-2-1003, Hydrographic
Surveying.
(1) Frequency of Surveys.
(a) Project Condition and Reconnaissance Surveys. Active waterways and harbor
projects shall be surveyed at a frequency sufficient to maintain adequate information on available
project dimensions. Either project condition surveys (Class 2) or more economical
reconnaissance surveys (Class 3) may be performed, depending on project requirements. Unless
unique circumstances are present, project condition survey schedules should not be more frequent
than the maintenance dredging cycle for a given project. General reconnaissance surveys should
be performed each year on projects which are dredged at infrequent periods (i.e., less than once
per year).
(b) Dredging Measurement, Payment and Acceptance Surveys. Contract hydrographic
dredging surveys will be conducted, as needed, during the contract period to ensure that the work
is in accordance with the contract plans and specifications.
8-4
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