Fire Station Geotechnical Report.pdf

Fire Station Site (Borings FH-B1 through FH-B4)

Soil Profile

The general stratigraphy encountered in the test borings consisted of indigenous sand soils with trace amounts of intermixed silt. The near surface sand soils contained trace amounts of intermixed organics. Bedrock was not encountered within the depths explored at the boring locations. SPT “N” values obtained in the upper 4 feet of cohesionless sand soils ranged from 4 to 8 indicating a “Loose” relative density. SPT “N” values obtained below a depth of 4 feet ranged from 15 to greater than 50 indicating the relative density varies from “Firm” to “Very Compact”.

Groundwater Conditions

Free standing water was encountered in the borings at depths ranging from 8.9 to 11.7 feet upon completion of overburden drilling and sampling. The following table summarizes the depths and elevations groundwater was encountered in the borings.

Approximate Depth and Elevation of Groundwater Boring No.

Ground Surface Elevation (feet)

Approximate Depth of Groundwater (feet)

Approximate Elevation of Groundwater (feet)

FH-B1 641.84 11.0 630.84

FH-B2 642.20 10.6 631.60

FH-B3 643.47 8.9 634.57

FH-B4 645.27 11.7 633.57

It should be expected that groundwater conditions could vary with location and with changes in soil conditions, precipitation and seasonal conditions.

DATE BORING NO. FH - B1

START: PROJ. NO. G09-2461

FINISH: SURF. ELEV. 641.84'

SHEET OF 1 G.W. DEPTH 11.0'

PROJECT: FY 10 and FY 11 Projects - Firehouse LOCATION: N 1473664.5697 E 1036997.3759 Ontario Avenue at 5th Street West Fort Drum, New York

BLOWS ON SAMPLER

0/6 6/12 12/18 18/24 N

1 2 3 3 5 1.1

7 9 12 12 21 1.8

12 27 33 39 60 1.7

25 46 52 61 98 2.0

CLASSIFICATION: Visual by

DRILLER:

METHOD OF INVESTIGATION:

80424139

Tan-Brown

Very Compact, Moist

SA

M

PL

E

N O

35 46

ASTM D 1586 using 3.25" I.D. Hollow Stem Augers

366 27

SA

M

PL

ES

Geotechnical Engineer

Freestanding water was measured drilling

1.6

2.0 Grades To "Fine" Sand, Brown, Wet

1.2

Compact

NOTES

at 11.0' upon completion of

CME 550

DEPTH

(ft.)

REC.

(ft.)

SUBSURFACE EXPLORATION LOG

SOIL OR ROCK

CLASSIFICATION

4/16/2009 4/16/2009

Brown Loose Fine-Medium SAND, Trace Silt, Dry (SP)

Firm

Boring terminated at 22.0 feet

13 27

38 2.031

DRILL RIG TYPE :

N = NO. BLOWS TO DRIVE 2-INCH SPLIT SPOON 12-INCHES WITH A 140 LB. PIN WT. FALLING 30-INCHES PER BLOW

M. Blakely

DATE BORING NO. FH - B2

FINISH: SURF. ELEV. 642.20'

SHEET OF 1 G.W. DEPTH 10.6'

PROJECT: FY 10 and FY 11 Projects - Firehouse LOCATION: N 1473649.0920 E 1037080.6140

1 2 3 3 5 1.4

6 7 8 8 15 1.8

5 11 11 16 22 1.5

10 10 14 17 24 1.9

METHOD OF INVESTIGATION:

21121110

Grades To "No" Organics, Tan-Brown

Wet (SP-SM)

SA

M

PL

E

N O

10 17

ASTM D 1586 using 3.25" I.D. Hollow Stem Augers

186 14

SA

M

PL

ES

Geotechnical Engineer

Freestanding water was measured drilling

Trace Silt, Dry (SP)

1.7

1.7 Firm

1.6

Grades To "Fine" SAND

Brown, Compact

NOTES

at 10.6' upon completion of

CME 550

DEPTH

(ft.)

REC.

(ft.)

SUBSURFACE EXPLORATION LOG

SOIL OR ROCK

CLASSIFICATION

4/17/2009 4/17/2009

Brown Loose Fine-Medium SAND, Trace Organics, Firm

Boring terminated at 22.0 feet

7 9

31 1.717

DRILL RIG TYPE :

N = NO. BLOWS TO DRIVE 2-INCH SPLIT SPOON 12-INCHES WITH A 140 LB. PIN WT. FALLING 30-INCHES PER BLOW

M. Blakely

DATE BORING NO. FH - B3

FINISH: SURF. ELEV. 643.47'

SHEET OF 1 G.W. DEPTH 8.9'

PROJECT: FY 10 and FY 11 Projects - Firehouse LOCATION: N 1473674.6607 E 1037186.6439

1 2 2 2 4 0.7

5 8 9 13 17 1.6

12 20 24 27 44 1.7

7 12 19 23 31 1.8

METHOD OF INVESTIGATION:

DRILL RIG TYPE :

N = NO. BLOWS TO DRIVE 2-INCH SPLIT SPOON 12-INCHES WITH A 140 LB. PIN WT. FALLING 30-INCHES PER BLOW

M. Blakely

17 30

33 2.027

Brown Loose Fine-Medium SAND, Trace Organics, Firm

Boring terminated at 22.0 feet

DEPTH

(ft.)

REC.

(ft.)

SUBSURFACE EXPLORATION LOG

SOIL OR ROCK

CLASSIFICATION

4/16/2009 4/16/2009

CME 550

NOTES

at 8.9' upon completion of Grades To "Fine" SAND, Very Compact

Trace, Silt, Dry (SP)

1.8

1.8 Compact

1.7

Very Compact

Geotechnical Engineer

Freestanding water was measured drilling

SA

M

PL

ES

6 17

ASTM D 1586 using 3.25" I.D. Hollow Stem Augers

33 57

3 3

SA

M

PL

E

N O

2 Grades To "No" Organics, Tan-Brown

Brown, Compact, Wet (SP-SM)

352121148

DATE BORING NO. FH - B4

FINISH: SURF. ELEV. 645.27'

SHEET OF 1 G.W. DEPTH 11.7'

PROJECT: FY 10 and FY 11 Projects - Firehouse LOCATION: N 1473467.6318 E 1037246.7741

2 2 3 3 5 1.5

5 8 12 15 20 1.9

12 21 20 23 41 1.7

11 29 41 50 70 1.7

METHOD OF INVESTIGATION:

DRILL RIG TYPE :

N = NO. BLOWS TO DRIVE 2-INCH SPLIT SPOON 12-INCHES WITH A 140 LB. PIN WT. FALLING 30-INCHES PER BLOW

M. Blakely

20 27

41 1.926

Brown Loose Fine-Medium SAND, Trace Silt, Dry (SP)

Firm

Boring terminated at 22.0 feet

DEPTH

(ft.)

REC.

(ft.)

SUBSURFACE EXPLORATION LOG

SOIL OR ROCK

CLASSIFICATION

4/17/2009 4/17/2009

CME 550

NOTES

at 11.7' upon completion of Very Compact, Wet

1.7

1.8

1.6

Grades To "Fine" Sand, Compact

Geotechnical Engineer

Freestanding water was measured drilling

SA

M

PL

ES

6 19

ASTM D 1586 using 3.25" I.D. Hollow Stem Augers

31 50

3 3

SA

M

PL

E

N O

2 Tan-Brown

Moist

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