Project Name
Project Number
UEPH Complex
Statement of Work
26 November 2001
CHAPTER 4
SITE ENGINEERING
4-1
SOILS.
4-1.1
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\ Geotechnical Report. A Geotechnical Report is provided as part of this RFP.
The report provides and overview of subsurface conditions, general recommendations for design,
and is furnished for informational purposes. The offeror to whom this contract is awarded, shall
perform a geotechnical investigation specific to the proposed project. The contractor shall submit a
project specific geotechnical report, certified by a professional engineer experienced in geotechnical
engineering, to include, but not limited to: description and classification of geologic, soil, [rock,] and
groundwater conditions; subsurface profiles, boring logs and location plans; summary of laboratory
and field test results; [local seismic conditions]; [local soil, rock, and groundwater problems]; [extent
of boulders;] soil resistivity, moisture, and chemistry for cathodic protection; infiltration and
permeability conditions; surface and subsurface drainage conditions; [description of existing
foundation systems]; bearing capacity of soil [and rock]; settlement type and potential;
recommendations for type and depth of foundation systems, pavement sections, slab on grade
sections; [recommendations for foundation drainage systems;] general earthwork, compaction,
dewatering, erosion and sediment control, excavation and safety requirements; [recommendations
for field tests]; [recommendations for underpinning]; [insert any site specific requirements]. /1/
4-1.1.1
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\ Certification. The offeror and his or her professional geotechnical engineer
consultant shall certify in writing that the design of the project has been developed consistent with
the site specific geotechnical conditions. The certification shall be stamped by the consulting
professional geotechnical engineer and shall be submitted with the First Site/Utility Design
Submittal (100%) . If revisions are made to the design submission, a new certification shall be
provided with the next design submission. /1/
4-1.1.2
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\ Changed Conditons. As noted in paragrah 4-1.1.1, the geotechnical report in the
RFP is for informational purposes and the offeror awarded the contract is responsible for
conducting his or her own project specific geotechnical investigation and report. If the contractor
encounters conditions different than provided in the RFP, the contractor shall notify the Government
with the submission of the contractor project specific geotechnical report [differences that can
impact cost such as rock or groundwater elevations; discovery of soil, rock, and groundwater
problems; discovery of contamination; changes required for foundations or pavements; changes in
earthwork requirements; etc.]. The Government shall evaluate the notification to determine if a
Changed Condition exists prior to the approval to initiate construction. /1/
4-1.2
Soil Compaction. Soil compaction shall be achieved by equipment approved by a
professional geotechnical engineer. Material shall be moistened or aerated as necessary to provide
the moisture content that will readily facilitate obtaining the compaction specified with the equipment
used. Compact each layer to not less than the percentage of maximum density specified in Table
4-1, determined in accordance with ASTM D 1557, Method D.
TABLE 4-1 Soil Compaction
Subgrade Preparation, Fills,
Compaction Requirements
Embankments, and Backfills
(Percentage of Maximum Density)
Structures & Building Slabs
90
SOW-86
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