20210512 Ver 1_Figure 6 - Revised - Stream Impacts - printed 7-1-21_20210701

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ROAD CROSSING
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EXISTING CULVERT: 31 LF
PROPOSED CULVERT: 56 LF
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PIN: 9750-18-4870 / 1���� 2 / , , ' Qom
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PERMANENT STREAM IMPACT
S1: 156 SQFT OR 0.0036 AC
Q
CULVERT -ACCESS ROAD
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1186290 ,_�� ®®■� 00____ �t��l�'1�.A -'-, ,v a
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PUBLIC WATER
CONNECTION
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SHELLEY \ .. _ft, `M
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TEMPORARY STREAM IMPACT
1 1
__�• �� \`198,%
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S2: 73 SQFT OR 0.0017 AC 20 LF)
cam-
1}`- i_ - -- s ---- ``y
IMENI'
PUBLIC SEWER CONNECTION
LLY f ,
PIN: 9750- :-:•.. '---_ ���\11 :... --_. ,—,,
NATESI ASHEVILLETWO �c-p,E'T
PROPCOLLC .. �Fo
CROSSING UNDER STREAM
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PROPOSED PUBLIC
1
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I I \` "./_//'j1 7� / ///�/�/ice I �� ASHLEY LEE
//•./
SEWER CONNECTION
1 ��/ ///1L_I //��//// \ // 1 DR,51ON PI3 Rn6
N PRELIMINARY, NOT FOR CONSTRUCTION
0 100� 200' 300' ,
,
_ —
W E
,
SCALE: 1 "=100'
S
/��V� 11:
113100KS
ENGINEERING ASSOCIATES
AMARX BEAVERDAM
Figure 6.1
- SITE PLAN

0
40' 80' 120' SCALE:
■�� 1"=40'
TEMPORARY STREAM IMPACT
S2: 73 SQFT OR 0.0017 AC (20 LF)
PUBLIC SEWER CONNECTION
CROSSING UNDER STREAM
ROAD CROSSING
EXISTING CULVERT: 31 LF
PROPOSED CULVERT: 56 LF
PERMANENT STREAM IMPACT
S1: 156 SQFT OR 0.0036 AC (28 LF)
CULVERT - ACCESS ROAD
FILL PIPE WITH
STREAM BED MATERIAL
TO EXISTING STREAM BED
ELEVATION
-12„ NOT TO
SCALE
Summary of Impacts:
Permanent Stream Impact S1: 0.0036 Ac / 28 LF
Temporary Stream Impact S2: 0.0017 Ac / 20 LF
PRELIMINARY,
NOT FOR
CONSTRUCTION
..,..,,.41.0,,,,
BROOKS
ENGINEERING ASSOCIATES
AMARX BEAVERDAM
Figure 6.2
- STREAM IMPACTS

approved
dewatering device
flow
sediment dike
pumps should discharge
onto a stable velocity
dissipater made of rip rap
or sandbags
discharge hoses
dewatering pump
A
f intake hose
clean water dike
work area
length not to exceed
that which can be
completed in one day
STREAM DE -WATERING DETAIL
•
er
•
stream
r- diversion pumps
I
P
A
-- intake
hose
flow
sump -hole
yr pool
(12" to 18" • deep)
2' dia.)
NO WORK SHALL BE PERFORMED DURING ELEVATED STREAM BASE FLOWS
PRELIMINARY,
NOT FOR
CONSTRUCTION
BROOKS
ENGINEERING ASSOCIATES
AMARX BEAVERDAM
Figure 6.3 L- PROPOSED PUMP AROUND SYSTEM

i
12" MIN
2" X 2" X 36" WOODEN
STAKES PLACED 5' O.C.
INSTALL 601b OF SAND BAGS
ON TOP OF OUTLET
SECTION Nrs
2" X 2" X 36" WOODEN
STAKES PLACED 5' O.C.
PLAN NHS
FILTREXX TRENCH
WATER DE -WATERING
MAXIMUM DEPTH OF CONTAMINATED WATER IS 50%
OF CONCRETE WASHOUT HEIGHT
18" DIAMETER FILTREXX®SOXXTN
(ALSO AVAILABLE IN 8", 12" AND 24" DIAMETERS)
PUMP CONTAMINATED WATER INTO
WASHOUT
18" DIAMETER FILTREXX®SOXXIN
NOTES:
1. INSTALL ON FLAT GRADE FOR OPTIMUM PERFORMANCE
2. _ _ _ WASHOUT MAY BE STACKED IN A PYRAMIDAL
( CONFIGURATION FOR ADDED HEIGHT AND STABILITY
3. WASHOUT MAY BE DIRECT SEEDED AT THE
TIME OF INSTALLATION
PRELIMINARY,
NOT FOR
CONSTRUCTION
CONSTRUCTION SEQUENCE:
ALL WORK TO BE PERFORMED IN THE
DRY USING PUMP AROUND SYSTEM
SHOWN ALL WORK MUST BE
PERFORMED ONLY AFTER 401/404
PERMIT HAS BEEN OBTAINED AND IN
ACCORDANCE OF ALL CONDITIONS.
1. INSTALL FILTREX FILTER RING
2. INSTALL PUMP AROUND AND
DEWATERING PUMP, DO NOT
TURN ON
3. INSTALL ALL REQUIRED
PUMPING PIPING
4. INSTALL UPSTREAM AND
DOWNSTREAM DIKES AND
BEGIN DEWATERING
5. ONCE TRENCH IS DRY, REMOVE
EXISTING CULVERT (IF
PRESENT) AND INSTALL NEW
ONE
6. RE -STABILIZE BANK IF
NECESSARY. USE
BIO-DEGRADABLE EXCELSOIR
CURLEX III 100% SEED FREE
ASPEN FIBERS.
7. REMOVE ANY COLLECTED
SEDIMENT IN TRENCH OR
FILTREXX FILTER RING
8. REMOVING PUMPS AND PIPING
EQUIPMENT
9. REMOVE DIKES
10. APPLY WETLAND SEED MIX TO
ANY DISTURBED AREAS
BROOKS
BASIN DETAIL
AMARX BEAVERDAM
ENGINEERING ASSOCIATES
Figure 6.4 - PROPOSED PUMP AROUND SYSTEM

NOTE:
ALL STREAMBANK RESTORATION AND
STABILIZATION SHALL RESULT IN A FINISH
GRADE TO ORIGINAL CONTOURS, UNLESS
SPECIFIED OR DIRECTED OTHERWISE BY
THE ENGINEER IN WRITING
INSTALL ANCHORS IN
ACCORDANCE WITH
MANUFACTURER'S
RECOMMENDATIONS
PLACE EXCELSIOR
ABOVE RIP -RAP
EXTEND TWO FEET
BEYOND TOP OF BANK
TOE IN 12 INCHES
EXIST. GRADE
12"
PLACE CLASS I RIP -RAP TO
E
VERTICAL DISTANCE ABO
VE
STREAMBED AS SPECIFIED
THE DRAWINGS
BACKFILL
STREAMBED
WITH NATIVE
MATERIALS
18"MIN.
FILTER FABRIC
12"
OVERLAP 6"
MINIMUM
CONCRETE ENCASEMENT
AS SPECIFIED
STREAMBANK RESTORATION DETAIL
N.T.S.
Figure 6.5
STANDARD DETAIL
Metropolitan Sewerage District
of Buncombe County, North Carolina
STREAMBANK PROTECTION III
DATE APPROVED: MARCH 2017 1.18 - 03