eckmann/bischoff, new river crossing isgs ......eckmann/bischoff, new river crossing wetland...
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ECKMANN/BISCHOFF, NEW RIVER CROSSING ISGS #43WETLAND MITIGATION SITEFAP 14Sequence #27Madison County, near Collinsville, IllinoisPrimary Project Manager: Steven E. Benton Secondary Project Manager: none
SITE HISTORY
C March 2009: IDOT tasked the ISGS to resume monitoring of the site.
C April 2009: ISGS installed a monitoring network at the site and resumed data collection.
WETLAND HYDROLOGY CALCULATION FOR 2010
We estimate that the area of the site that satisfied wetland hydrology criteria (EnvironmentalLaboratory 1987) in 2010 for greater than 5% of the growing season was 22.6 ha (55.9 ac) outof a total area of 23.1 ha (57.0 ac). The area of the site that satisfied wetland hydrology criteriafor greater than 12.5% of the growing season was estimated to be 20.9 ha (51.6 ac). Using the2010 Midwest Region supplement (U.S. Army Corps of Engineers 2010) to the 1987 Manual,we estimate that 21.8 ha (53.9 ac) satisfied wetland hydrology criteria for 14 or moreconsecutive days during the growing season. These estimates are based on the followingfactors:
C According to the MRCC, the median date that the growing season begins in nearbyBelleville, Illinois, is April 6 and the season lasts 199 days; 5% of the growing season is10 days and 12.5% of the growing season is 25 days. According to methods outlined inthe 2010 Midwest Region supplement, we estimate that March 11 was the starting dateof the 2010 growing season at this site based on soil temperatures measured at thenearby Fairmont City site.
C Total precipitation recorded at Belleville, Illinois weather station during the monitoring
period was 130% of normal and precipitation in Spring 2010 (March through May) was93% of normal. The largest areas of jurisdictional wetland hydrology for all three criteriaoccurred in April and May when on-site precipitation was 92% of normal.
C In 2010, water levels measured in soil-zone monitoring wells 2S, 3S, 4S, 5S, 6S, 7S, 8S,and 9S satisfied wetland hydrology criteria for more than 5% of the growing season. Water levels measured in soil-zone monitoring wells 3S, 4S, 5S, 7S, and 9S satisfiedwetland hydrology criteria for more than 12.5% of the growing season. Water levelsmeasured in soil-zone monitoring wells 2S, 3S, 4S, 5S, 6S, 7S, and 9S satisfied wetlandhydrology criteria for 14 or more consecutive days during the growing season as per the2010 Midwest Region supplement.
C Surface-water elevations measured at EBSW1 reveal that areas of the site at and belowan elevation of 124.10 m (407.17 ft) were inundated for more than 5% of the growingseason and that areas at and below an elevation of 124.05 m (407.01 ft) were inundatedfor more than 12.5% of the growing season. In addition, areas of the site at and belowan elevation of 124.10 m (407.17 ft) were inundated for 14 or more consecutive daysduring the growing season as per the 2010 Midwest Region supplement.
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ADDITIONAL INFORMATION
C In December 2009, the beaver dam in Schneider Ditch was breached by employees ofthe levee district. This caused a precipitous drop in surface-water elevation on the site. In March 2010, it was observed that the beavers had repaired their dam.
PLANNED FUTURE ACTIVITIES
C Monitoring of the site will continue until no longer required by IDOT.
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Eckmann/Bischoff, New River Crossing
Wetland Mitigation Site
(FAP 14)
Study Area and Vicinityfrom the USGS Topographic Series, Monks Mound IL, 7.5-minute Quadrangle
(USGS 1954, photorevised 1993)
contour interval is 10 feet
0
0
600 m
2000 ft
general study area
43
sit
eb
ou
nd
ary
DE
C
B
EB
SW
1A
6S
5S
4S
3S
7S
8S
9S
2S
1S
14
da
ys o
r m
ore
(20
10
Mid
we
st
Re
gio
nsu
pp
lem
en
t)
>1
2.5
% o
f g
row
ing
se
aso
n (
19
87
Ma
nu
al)
>5
% o
f g
row
ing
se
aso
n (
19
87
Ma
nu
al)
20
10
We
tla
nd
Hy
dro
log
y
rain
ga
ug
e
da
ta lo
gg
er
sta
ff g
au
ge
mo
nito
rin
g w
ell
05
00
ft
01
00
m
1:4
,950
Ec
km
an
n/B
isc
ho
ff,
Ne
w R
ive
r C
ros
sin
gW
etl
an
d M
itig
ati
on
Sit
e(F
AP
14
)
Sep
tem
ber
1, 2009 t
hro
ug
hA
ug
ust
31, 2010
Esti
mate
dA
real E
xte
nt
of
2010 W
etl
an
d H
yd
rolo
gy
ma
p b
ase
d o
n U
SG
S d
igita
l o
rth
op
ho
tog
rap
h,
Mo
nks M
ou
nd
, S
E q
ua
rte
r q
ua
dra
ng
lep
rod
uce
d f
rom
Ma
rch
20
05
ae
ria
l p
ho
tog
rap
hy (
ISG
S 2
00
5)
44
Eckm
ann/
Bis
chof
f, N
ew R
iver
Cro
ssin
g W
etla
nd M
itiga
tion
Site
Sept
embe
r 1, 2
009
thro
ugh
Aug
ust 3
1, 2
010
123.
5
124.
0
124.
5
125.
0
Sep 2009
Oct 2009
Nov 2009
Dec 2009
Jan 2010
Feb 2010
Mar 2010
Apr 2010
May 2010
Jun 2010
Jul 2010
Aug 2010
Sep 2010
Elevation (in m referenced to NAVD, 1988)
Wat
er-L
evel
Ele
vatio
ns in
Mon
itorin
g W
ells
Wel
l 1S
Wel
l 2S
Wel
l 3S
Wel
l 4S
Wel
l 5S
Wel
l 6S
Wel
l 7S
Wel
l 8S
Wel
l 9S
45
Eckm
ann/
Bis
chof
f, N
ew R
iver
Cro
ssin
g W
etla
nd M
itiga
tion
Site
Sept
embe
r 1, 2
009
thro
ugh
Aug
ust 3
1, 2
010
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Sep 2009
Oct 2009
Nov 2009
Dec 2009
Jan 2010
Feb 2010
Mar 2010
Apr 2010
May 2010
Jun 2010
Jul 2010
Aug 2010
Sep 2010
Depth (in m referenced to land surface)
Dep
th to
Wat
er in
Mon
itorin
g W
ells
Wel
l 1S
Wel
l 2S
Wel
l 3S
Wel
l 4S
Wel
l 5S
Wel
l 6S
Wel
l 7S
Wel
l 8S
Wel
l 9S
46
Eckm
ann/
Bis
chof
f, N
ew R
iver
Cro
ssin
g W
etla
nd M
itiga
tion
Site
Sept
embe
r 1, 2
009
thro
ugh
Aug
ust 3
1, 2
010
123.
0
123.
5
124.
0
124.
5
125.
0
Sep 2009
Oct 2009
Nov 2009
Dec 2009
Jan 2010
Feb 2010
Mar 2010
Apr 2010
May 2010
Jun 2010
Jul 2010
Aug 2010
Sep 2010
Elevation (in m referenced to NAVD, 1988)
Wat
er-L
evel
Ele
vatio
ns a
t Sta
ff G
auge
s an
d D
ata
Logg
ers
Gau
ge A
Gau
ge C
Gau
ge D
Gau
ge E
EB
SW
1
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Eckmann/Bischoff, New River CrossingWetland Mitigation Site
September 2009 through August 2010
Graph last updated September 29, 2010
0
1
2
3
4
5
6
7
8
9
10
11
12
13Se
p 20
09
Oct
200
9
Nov
200
9
Dec
200
9
Jan
2010
Feb
2010
Mar
201
0
Apr 2
010
May
201
0
Jun
2010
Jul 2
010
Aug
2010
Prec
ipita
tion
(inch
es)
Total Monthly Precipitation Recorded on Site and at the Southern Illinois University Research Center, Belleville, IL
monthly precipitation recorded at Belleville, IL (MRCC)
monthly precipitation recorded onsite by ISGS
data incomplete
1971-2000 monthly 30% above average threshold at Belleville, IL (NWCC)
1971-2000 monthly average precipitation at Belleville, IL (NWCC)
1971-2000 monthly 30% below average threshold at Belleville, IL (NWCC)
on-site rain gaugeremoved 12/02/2009installed 03/03/2010
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