20230126 Ver 1_More Info Received_20230419 (6)

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2
3
STREAM
M PACT
NUMBER
I M PACT
SPECIFICATION
S4
TEMPORARY 23 SF (9.70 LF)
S4
PERMANENT 217.335 SF (114.498 LF)
S4
PERMANENT NO FUNCTIONAL
LOSS 49 SF (25.27 LF)
Stream Crossing Construction Sequence
(Frontiersman Drive)
Place silt fence around stream side and downstream side of by-pass channel.
Construct by-pass channel with lining as shown with the stream banks still in place at upper and
lower ends. This channel is to be stabilized immediately after construction.
In one work day remove lower "dam" extending lining as necessary. Remove upper "dam"
extending lining. Build a temporary sandbag dam across the stream to force flow into the by-
pass channel. Wrap the upstream side of the dam with plastic to reduce seepage through the
dam.
4. Construct culverts with headwalls as shown except that wing walls on the south side of the
culvert pipe will be delayed. Place fill (properly compacted) between pipes, on each side of
pipes and to at least one foot above the top of each pipe. If during construction of the pipes
and headwalls pounded water collects, it shall be pumped out through a silt sack.
5. Divert stream flow to pipes. Fill by-pass ditch with compacted soil.
6. Construct south side end walls.
7. Complete grading of road including water line, sewer line (if applicable), and low point storm
drain.
S. If a rain event during the construction of the culverts causes any ponded water within the
disturbed area, it is to be pumped out through a silt sack.
9. All grading activity will follow the stabilization schedule set on Sheet CD3.
\\ \I\l 1I \ \ \ \ 1
J
MH 91
I
i
f
48" RCP PIPES
WITH CONCRETE CB 675
ENDWALL PER
NCDOT STANDARDS
M
BY-PASS CHANNEL
BOTTOM WIDTH 2'
SIDE SLOPE 1.5:1'
LINING CLASS 1 STONE (13") TO HEIGHT OF 2' ABOVE BOTTOM
SLOPE 6.724%
3-A
J/
// /
;
o \r
STREAM S4 IMPACT
TEMPORARY - 23 SF (9.70 LF)
PERMANENT- 217.335 SF (114.498 LF) / C \
PERMANENT RIP RAP NO / \
/ FUNCTIONAL LOSS 49 SF (25.27 LF)
W,CB 774
E
GRAPHIC SCALE
( IN FEET )
1 inch = 20 ft
IMPACT LEGEND
LLLLLLLLLLLLL
LLLLLLLLLLLLL
LLLLLLLLLLLLL
LLLLLLLLLLLLL
LLLLLLLLLLLLL
LLLLLLLLLLLLL
MH 91
I
i
f
48" RCP PIPES
WITH CONCRETE CB 675
ENDWALL PER
NCDOT STANDARDS
M
BY-PASS CHANNEL
BOTTOM WIDTH 2'
SIDE SLOPE 1.5:1'
LINING CLASS 1 STONE (13") TO HEIGHT OF 2' ABOVE BOTTOM
SLOPE 6.724%
3-A
J/
// /
;
o \r
STREAM S4 IMPACT
TEMPORARY - 23 SF (9.70 LF)
PERMANENT- 217.335 SF (114.498 LF) / C \
PERMANENT RIP RAP NO / \
/ FUNCTIONAL LOSS 49 SF (25.27 LF)
W,CB 774
E
GRAPHIC SCALE
( IN FEET )
1 inch = 20 ft
IMPACT LEGEND
LLLLLLLLLLLLL
LLLLLLLLLLLLL
LLLLLLLLLLLLL
LLLLLLLLLLLLL
LLLLLLLLLLLLL
LLLLLLLLLLLLL
TEMPORARY
IMPACT
PERMANENT
I M PACT
PERMANENT
RIPRAP NO
FUNCTIONAL LOSS
805
800
800
795
ROPOSED
GRADE
790
790
EXISTING,
GRADE
785
780
\
780
HW 1
775
W 11
" RCP@ 8.46%
711- " 5
Lima
770
SEE SHEET3--
FOR RIPRAP
770
CROSS-SECTI
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765 765
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PRELIMINARY
FOR INFORMATION, ONLY
STIPULATION FOR REUSE
THIS DRAWING WAS PREPARED FOR USE
ON THE SPECIFIC SITE, NAMED HEREON,
CONTEMPORANEOUSLY WITH ITS ISSUE
DATE AS LISTED, HEREON. AND IT IS NOT
SUITABLE FOR USE ON A DIFFERENT
PROJECT SITE OR AT A LATER TIME. USE OF
THIS DRAWING FOR REFERENCE OR EXAMPLE
ON ANOTHER PROJECT REQUIRES THE
SERVICES OF PROPERLY LICENSED
ARCHITECTS AND ENGINEERS. REPRODUCTION
OF THIS DRAWING FOR REUSE ON
ANOTHER PROJECT IS NOT AUTHORIZED
AND MAYBE CONTRARY TO THE LAW.
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JOB NUMBER: 21-004
CHECKED BY:
DRAWN BY: ALP/EDS/jMAC
DATE: 2022
SHEET TITLE:
IMPACT MAP -
AREA 3
SHEET NO.:
4