UTS Job 23418 Report 4 Soil Inspection Report 07-01-2019 Page 1
5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax)
Report Date 07-01-2019Soil Inspection Report
Report No.4
Distribution Copy Job Number 23418
Project Halstead Salem Station, 72 Flint Street
Salem, MA
Contractor Fulcrum Associates
WEATHER:Partly cloudy 70°
TIME:7:00 AM
CONTACT:Bob Levesque of Fulcrum Associates
PURPOSE:Observe earthwork construction
EQUIPMENT:Deere 450C Excavator, Wacker DPU 6555 Plate Compactor
TEST METHOD:Sand Cone Nuclear Densometer
TITLE:Inspector Staff Engineer EngineerX
OBSERVATIONS:
This report follows a site visit to observe/test the earthwork for: Footing trench excavation.
Sub grade improvements continued within proposed roadway areas located at the South side of
proposed building 2. The area was carried down to approximate elevation 1.75' utilizing the Deere 450
excavator equipped with a flat cutting edge (flared teeth) to minimize sub grade disturbance. The
selected elevation corresponds with 2' below the lowest utility run in the area. Grades and layout was
performed by Pitt Pipeline. The sub grade soil in this area is fill, specifically tannin bark.
Groundwater was present. De watering was performed as necessary to maintain semi dry sub grade
conditions. A layer of geogrid was placed atop the sub grade to improve stability. Compaction of the
sub grade will not be feasible due to the wet organic sub grade soils. An approximately 12 - 18" thick
layer of 2" crushed stone was placed and graded. The surface of the stone was tamped into place
utilizing the excavator bucket. The area was filled placing 12 - 18" thick lifts of 2" minus processed
gravel. Each lift was compacted employing a minimum of 6 passes of coverage utilizing the IR 10 ton
drum roller exhibiting stable/firm conditions. The work completed on this date was performed in
accordance with the recommendations provided in email correspondence by Kevin Martin of KMM; the
geotechnical engineer of record.
Footing trench excavation continued within the limits of proposed building #2 along column line 12
from G - F (see sketch). The trench was excavated to design elevation utilizing the Deere 450 excavator
equipped with a flat cutting edge (flared teeth) to minimize sub grade disturbance. Ground improvements
were recently completed in this area by installing GCC deep foundation elements. The area was over
excavated 6" below design BOF elevation to provide a cushion/base of material between the elements and
Page 2
5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax)
Report Date 07-01-2019Soil Inspection Report
Report No.4
Distribution Copy Job Number 23418
Project Halstead Salem Station, 72 Flint Street
Salem, MA
Contractor Fulcrum Associates
the footing. All GCC elements were carefully located and exposed during excavation. One pier location
was chipped down to provide the adequate crushed stone base thickness. The sub grade soil in this area
is fill and varies in consistency from clay to organic silt with wood to tannin bark. Groundwater was
present. A layer of Mirafi 160 filter fabric was placed atop the sub grade as specified. Compaction of
the sub grade will not be feasible due to the wet organic sub grade soils. A 6" thick layer of ¾"
crushed stone was placed and graded. The surface of the stone was compacted utilizing the 200 Lb. plate
compactor generally exhibiting stable/firm conditions.
Inspector Premium Travel
Name Time Hours Time
M. Chace No 8.00 1 Hr(s)
REVIEWED BY:
Chuck Fraser
Our reports are available in PDF form via email. Please email us at reports@utsofmass.com for more information.
cc:Fulcrum Associates Bob Levesque
Fulcrum Associates Brad Scott
Fulcrum Associates Darrin Standish
DMS Design Sid Silveira
DMS Design Dan Skolski
City of Salem Steve Cummings
Veitas & Veitas Linas Dabrila
DSF Group Paul Bowie
DSF Group Benjamin Greene
Fulcrum Group Riley Bourque
UTS of Massachusetts, Inc. Page 3
5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax)
Report Date 07-01-2019
Report No.4
Job Number 23418
Project Halstead Salem Station, 72 Flint Street
Salem, MAAttachment
UTS of Massachusetts, Inc. Page 4
5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax)
Report Date 07-01-2019
Report No.4
Job Number 23418
Project Halstead Salem Station, 72 Flint Street
Salem, MAAttachment