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MA0032 SOIL
INTERPRETATIONS RECORD BROCKTON SERIES
MLRA(S): 144A, 149B
REV. RJS, 12-94
TYPIC HUMAQUEPTS, SANDY, MIXED, MESIC
The Brockton series consists of very deep, very
poorly drained soils on uplands. They formed in glacial till.
Typically these soils have a very dark brown organic surface
layer 3 inches thick. The subsurface layer from 3 to 14 inches is
a mottled black sandy loam. The upper substratum from 14 to 20
inches is a gray gravelly loamy sand. The lower substratum from
20 to 65 inches is a very firm mottled gray gravelly loamy sand.
Slopes range from 0 to 3 percent.
LANDSCAPE AND CLIMATE PROPERTIES
| ANNUAL AIR
TEMP. (F) |
FROST FREE
DAYS |
ANNUAL
PRECIPITATION |
ELEVATION (FT) |
DRAINAGE
CLASS |
SLOPE
(PCT) |
| 45-50 |
160-220 |
40-50 |
0-1000 |
VP |
0-3 |
ESTIMATED SOIL PROPERTIES (A)
| DEPTH (IN.) |
USDA TEXTURE
|
UNIFIED
|
AASHTO
|
FRACT.
>10 IN |
FRACT.
3-10 IN |
CLAY
(PCT) |
| 0-14 |
SL,FSL,LS |
SM,ML,OL |
A-1,A-2,A-4 |
0 |
0-10 |
2-8 |
| 0-14 |
GR-SL,GR-FSL,GR-LS
|
SM,ML,OL |
A-1,A-2,A-4 |
0 |
0-15 |
2-8 |
| 0-14 |
MK-SL,MK-FSL,MK-LS
|
SM,ML,OL |
A-1,A-2,A-4 |
0 |
0-10 |
2-8 |
| 14-17 |
GR-LS,LCOS |
SM,SP-SM |
A-1,A-2 |
0 |
0-20 |
1-5 |
| 17-65 |
LS,GR-LCOS,SL
|
SM,SP-SM |
A-1,A-2 |
0 |
0-20 |
1-5 |
DEPTH
(IN.) |
LIQUID LIMIT |
PLAS- TICITY
INDEX |
MOIST BULK
DENSITY
(G/CM3) |
PERME-
ABILITY
(IN/HR) |
AVAILABLE
WATER
CAPACITY
(IN/IN) |
SOIL
REACTION
(PH) |
| 0-14 |
0-14 |
NP |
1.10-1.30 |
2.0-6.0 |
0.10-0.23 |
3.6-6.0 |
| 0-14 |
0-14 |
NP |
1.20-1.30 |
2.0-6.0 |
0.04-0.20 |
3.6-6.0 |
| 0-14 |
0-14 |
NP |
1.00-1.20 |
2.0-6.0 |
0.12-0.25 |
3.6-6.0 |
| 14-17 |
0-14 |
NP |
1.30-1.60 |
2.0-6.0 |
0.04-0.07 |
3.6-6.0 |
| 17-65 |
0-14 |
NP |
1.60-2.00 |
0.06-0.2 |
0.02-0.04 |
3.6-6.0 |
DEPTH
(IN.) |
ORGANIC
MATTER
(PCT) |
SHRINK-
SWELL
POTENTIAL |
EROSION
FACTORS
(K, Kf, T) |
CORROSIVITY
STEEL/CONCRETE |
| 0-14 |
2-8 |
LOW |
.24, .24, 2 |
HIGH/HIGH |
| 0-14 |
2-8 |
LOW |
.17, .24, 2 |
|
| 0-14 |
5-10 |
LOW |
.24, .24, 2 |
|
| 14-17 |
|
LOW |
.17, .20 |
|
| 17-65 |
|
LOW |
.17, .20 |
|
FLOODING
FREQUENCY |
HIGH WATER
TABLE
DEPTH (ft)/ KIND/ MONTHS |
BEDROCK
DEPTH (IN) |
HYDOLOGIC
GROUP |
POTEN-
TENTIAL
FROST
ACTION |
| NONE |
+1 to –1.0/
PERCHED/ SEP-JUN |
>60 |
D |
MODERATE |
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