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SCALE: H:1 "=20', V:1 "=2'
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Call before you dig.
EXISTING ROW BOUNDARY
PROPOSED ROW BOUNDARY
52.00'
BUILDING
PROPOSED
GRADE
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AT SECTION
LINE
BIO-RETENTION POND
6" VERTICAL CURB
rpm,:
EXISTING GRADE
T SECTION LINE
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BOTTOM OF
CHAMBER: 392.75
BOTTOM OF
ROCK: 392.00
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2 DETEN1
C4.5 CHAMBERS
ION
EX
AT
STING GRADE PROPOSED GRADE
SECTION LINE AT SECTION LINE
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T A C O M A S E A T T L E
;pC 69 E2.9 SPOKANE TRI-CITIES
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�SSIONAL E2215 North 30th Street, Suite 300 Tacoma, WA 98403
253.383.2422 TEL 253.383.2572 FAX www.ahbl.com WEB
07/21 /2025
405
400
MIN. 4.0'
WIDE BERM
RETAINING
WALL
40'STREAM
BUFFER
395 395
BOTTOM OF -
CHAMBER: 392.75
1.08' OF DEAD _
STORAGE
BOTTOM OF-
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390
385
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400
385
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CB #1, 54" TYPE 2
CONTROLSTRUC
URE
SOLID LID
N: 618.12
E: 953.98
PROPERTY LINE
IE: 393.08 12" (S)
IE: 393.08 12" (NW)
PROPOSED
GRADE
6" VERTICAL
CURB
AT SECTION
LINE
I
BI
-RETENTION POND
MIN. 4.0' I
E
ISTING GRADE
WIDE BERM
1.96'yl
40' STREAM BUFFER
_
RETAINING
_ -
WALL
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LF 12" CPE
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2 DETE
TION
5 OUTFALL
ROTECTION
C4.5 CHAM
ERS
KCT
IE:392.58 I I
11 I HIGH WATER
MARK = 392.05
CB #7, NYLOPLAST DRAIN 30"
SOLID LID
OHWL
N: 629.70
E: 946.88 EXISTING
STREAM
RIM: 398.24
IE: 393.08 12" (SE)
IE: 393.08 12" (SW)
EX
STING GRADE PROPOSED GRADE
AT
SECTION LINE AT SECTION LINE
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SIT�ESE CTION 2
SCALE: H:1 "=20', V:1 "=2'
405
400
395 400
ALL PROTECTION
390
385
LL
21+00 21+25
395
390
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W
VALLEY GUTTER
CB #6, NYLOPLAST DRAIN 30"
CB #2, NYLOPLAST DRAIN 30"
SOLID LID
SOLID LID
N: 611.60
N: 658.30
E: 866.55
E: 972.96
RIM: 397.78
RIM: 398.44
IE: 394.23 6" (SE)
IE: 394.40 12" (NE)
IE: 394.64 6" (N)
IE: 393.14 24" (SW)
IE: 393.14 24" (NE)
IE: 393.14 12" (SE)
400
PROPOSED GRADE
AT SECTION LINE
EXISTING GRADE
AT SECTION LINE
1.08' OF DEAD
BOTTOM OF
CHAMBER: 392.75
DETENTION CHAMBERS
2
C4.5
BOTTOM
OF ISTORMTECH
EXISTING GRADE
AT SECTION LINE
PROPOSED GRADE
AT SECTION LINE
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SITE SECTION 3
SCALE: H:1 "=20', V:1 "=2'
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