REV15278

• Permit No: M1980244
• IBM Index Class Name: Revision
• Doc Name: RELEVANT SECTIONS FROM FINAL REPORT CRESSON PROJECT QUALITY ASSURANCE MONITORING AND TEST RESULTS
• Type & Sequence: TR33
• Media Type: D
• Archive: No

including previously approved subgrade, that become softened or otherwise
unsuitable for placement of fill, shall be repaired to CERTIFYING ENGINEER's and
MANAGER'S satisfaction, at no cost to CC&V.
C. Prior to placement of fill materials, CONTRACTOR shall scarify all in-situ materials
to a depth of 6-inches, moisture condition, and recompact the subgrade.
Compactive effort shall be adequate to obtain a minimum of 95 percent of
maximum dry density as determined by the standard Proctor test (ASTM D6981
for the particular fill material. Moisture conditioning shall be adequate to achieve a
unitorm moisture and density. In rock areas, the CONTRACTOR shall prepare the
subgrade by removing loose rock fragments until competent foundation material is
encountered as approved by CERTIFYING ENGINEER.
D. If the underlying material is unsuitable to permit proper compaction of the
subgrade, CONTRACTOR shall loosen, aerate for excavate and remove), and
recompact the subgrade until the top layer can be compacted as required. The
recompacted surface shall then be scarified, as needed, to provide a good bond
between the foundation and fill materials.
3.06 FILL PLACEMENT:
A. The following general guidelines shall be followed except as noted elsewhere in
this Section.
1. No fill materials shall be placed until the foundation and subgrade
preparations have been completed as specified herein, in Article 3.05 of
this Section. The procedures for fill placement shall be approved by
MANAGER and CERTIFYING ENGINEER prior to start of fill placement.
2. No brush, roots, sod, frozen material, or other deleterious or unsuitable
materials shall be incorporated in the fills. The suitability of all materials
intended for use in the till shall be subject to approval by MANAGER and
CERTIFYING ENGINEER. Fill placement shall be temporarily stopped by
CONTRACTOR due to weather conditions, if materials and installation do
not meet the SPECIFICATIONS, at no cost to CC&V. Fill shall not be
placed upon frozen material, such as snow or ice.
3. If the surface of the prepared foundation or the surface of any layer of the
fill is too dry or too smooth to bond properly with the layer of material to
be placed thereon, it shall be moisture-conditioned and/or worked with
harrow, scarifier, disc, or other suitable equipment to provide a
satisfactory banding surface before fill material is placed thereon. If the
surface of the prepared foundation or the rolled surface of any layer is
excessively wet for fill materials to be placed thereon, it shall be removed
and allowed to dry or worked with a harrow, scarifier, disc, or other
suitable equipment to reduce the moisture content to an acceptable level
or meet project specificatiensas determined by MANAGER and
CERTIFYING ENGINEER. f< shall then be compacted before the next layer
of fill material is placed. Determination of such dry or wet conditions shall
be made by CERTIFYING ENGINEER.
4. The distribution of materials shall be such that the fill is free from voids,
lenses, pockets, streaks, or layers of material differing substantially in
texture or gradation from the surrounding material. The material of a fill
shall be as described in Article 2.01 of this Section,
Section 02200 Page 7 of 15 March 2, 1999
Earthworks Golder Assodates Revision 6
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