2020-11-19_PERMIT FILE - C1980007 ‎(3)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 11/19/2020
• Doc Name: South Prong Restoration Plan
• Section_Exhibit Name: Exhibit 80 TR-148 South Prong Restoration Plan
• Media Type: D
• Archive: No

OVERBANK
(VARIES - SEE DT02)
TOP OF BANKFULL
(VARIES - SEE DT02)
TOP OF LOW FLOW
(VARIES - SEE DT02)
UPLAND SEED MIX RIPARIAN SEED MIX RIPARIAN SEED MIX UPLAND SEED MIX
PLACED TO LIMITS PLACED FROM PLACED FROM PLACED TO LIMITS
OF DISTURBANCE TOP OF LOW FLOW TOP OF LOW FLOW OF DISTURBANCE
TO OVERBANK INSTALL INSTALL TO OVERBANK
WILLOW WILLOW
CUTTINGS ON CUTTINGS ON _
BANKFULL BANKFULL —
_ _ BENCH — BENCH
COMPACTED O
TOPSOIL (6" MIN.) SUBSTRATE MATERIAL _ TOPSOIL (6" MIN.)
WITHOUT FINES
INSTALLED TO LIMITS INSTALLED TO LIMITS
OF DISTURBANCE (6" THICK MIN.) — OF DISTURBANCE
O O O O
6 BENTONITE
BY OTHERS
EROSION CONTROL BLANKET NEDIA SC400B COMPACTED SUBSTRATE MATERIAL TO EROSION CONTROL BLANKET NEDIA SC400B
WITH STRAW AND COCONUT FIBER BE INSTALLED TO OVERBANK LIMITS WITH STRAW AND COCONUT FIBER
MATRIX OR APPROVED EQUIVALENT (TYP.) (24" THICK MIN.) MATRIX OR APPROVED EQUIVALENT (TYP.)
TYPICAL CHANNEL SECTI (DN-
NOT TO SCALE
TABLE 1 . STREAM SUBSTRATE PROPORTIONS STREAM SUBSTRATE PLACEMENT AND GRADATION NOTES:
1. WHERE STREAM SUBSTRATE IS DESIGNATED ON THE RESTORATION PLAN, COBBLE MATERIAL (WHICH
Approximate Proportions Material Material Description TABLE 2. COBBLE GRADATION MEETS THE GRADATION SHOWN IN TABLE 2) SHALL BE MIXED WITH SMALLER MATERIAL AND FINES TO
(loader buckets) Type MEET THE PROPORTIONS LISTED IN TABLE 1 TO FILL ALL REMAINING VOIDS.
6 Cobble See Table 2. 2. THE MIX PROPORTIONS PROVIDED IN THESE TABLE ARE APPROXIMATE AND ARE SUBJECT TO
INTERMEDIATE ADJUSTMENT BY THE ENGINEER. THE INTENT OF THE SPECIFIED STREAM SUBSTRATE MATERIAL IS TO
material that
1 Vold-fill 2 to is well-graded, 100%passing 6-inch sieve,4-inch cobble (round washed river rock THAN GIVEN 50
o/° SMALLER ROCK D MATCH THE EXISTING STREAM SUBSTRATE OF THE DOWNSTREAM CHANNEL.
35-50% passing 3-inch sieve, 5-20% passing DIMENSION (INCHES) 3. THE STREAM SUBSTRATE MATERIAL SHALL BE STOCKPILED AND THOROUGHLY MIXED PRIOR TO
2-inch sieve) SIZE BY WEIGHT (INCHES) PLACEMENT AND SHALL BE INSTALLED AND COMPACTED SO THAT A DENSE, INTERLOCKED LAYER OF
z 1 Void-fill 4-inch minus pit run surge (round river rock MATERIAL IS PROVIDED WITH VOIDS COMPLETELY FILLED. COMPACTION OF THE STREAM SUBSTRATE
material and sand, well graded, 90-100%passing 4-inch 70 - 100 15 SHALL BE DONE USING HEAVY EQUIPMENT (E.G. BUCKET OF AN EXCAVATOR).
N sieve, 70-80% passing 1.5-inch sieve, 40-60% 50 - 70 12 9 4. WHERE INDICATED ON THE DRAWINGS, A SURFACE LAYER OF STREAM SUBSTRATE WITHOUT FINES SHALL
Q passing 3/8-inch sieve, 10-30% passing #16 35 - 50 9 BE PLACED AND COMPACTED, CONSISTENT WITH THE 'TOP-DRESS' MATERIAL INCLUDED IN TABLE 1.
1 Void-fill Typesieve)II bedding 2 - 10 3 5. ALL STREAM SUBSTRATE SHALL BE COMPACTED AND REVIEWED AND APPROVED BY THE ENGINEER PRIOR
material NOTE: MIX ON SITE AND PRIOR TO PLACEMENT TO ANY REVEGETATION.
o % to 1 Void-fill Native topsoil
o material
wTop layer Top Additional 4 to 12-inch cobbles (round washed
dressing river rock that is well graded, 80-100%passing
w12-inch sieve, 35-50% passing 6-inch sieve, 5-
20%passing 4-inch sieve) shall be mixed in on
the surface of exposed sections of void-filled
riprap (covering approximately 15% of the
of surface) prior to compaction of the void-filled
0 riprap. Cobbles shall be fully embedded into
o the mass of the void-filled ri ra .
Q
j Note: Mix proportions and material gradations are approximate and are subject to
adjustment by the ENGINEER.
rn
i
N
M STREAM SUBSTRATE C; RADATIC:) N AND-
00
1-1
M CALL COLORADO
w
811
PLACEMENT N (DTES-
3: OR CALL UTILITY NOTIFICATION
__'� i
c�
CENTER OF COLORADO
1 -800-922-1987
� CALL 3-BUSINESS DAYS IN ADVANCE
li? BEFORE YOU DIG, GRADE, OR EXCAVATE
_o FOR THE MARKING OF UNDERGROUND
MEMBER UTILITIES
0
0
N
o COMMENTS DATE JOB NO.
N NO. BY DATE DESCRIPTION DESIGN DTL 10/28/20 SOUTH PRONG STREAM RESTORA T/ON PLAN 831-032.921
WRIGHT WATER ENGINEERS, INC. ---- DETAIL DTL 10/28/20 REVISION NO.
2490 W. 26TH AVE. SUITE 100A __ - ---- ---- CHECK SIDS 10/28/20
DENVER CO 80211 __ APPROVAL ----
[phone] FAX[phone] -- ---- ---- ---- SCALE SHOWN TYPICAL SECTION
SHEET NO.
--
o ---- DT.dwg DT01
0