2021-08-27_REVISION - M2019028

• Permit No: M2019028
• IBM Index Class Name: REVISION
• Doc Date: 8/27/2021
• Doc Name: Adequacy Review Response
• From: J&T Consulting. Inc.
• To: DRMS
• Type & Sequence: TR1
• Email Name: PSH
• Media Type: D
• Archive: No

85'MIN
70' 315'
SLURRY WALL
CENTERLINE EXISTING GROUND
NWL=4595.9 I•f-25'--•I 10'1­ 3'
.. _ BACKFILL MIXING AREA (MIN)
STOCKPILED SUPPLEMENTAL FINES
3 �HVI SLURRY WALL
FINAL SLOPE WORKING PLATFORM MAINTAIN SLURRY LEVEL AS
CLOSE TO GROUND SURFACE
CONFINEMENTS
AS POSSIBLE CONFINEMENT BERM
AND/OR SILT FENCE AND/OR SILT FENCE
SLURRY WALL WHERE NECESSARY WHERE NECESSARY
(SOIL-BENTONITE) �TT/7TT �7"/-/7T'T/7TT/7TT/7
PLATFORM FILL//////////////// l,'IAI PLATFORMFILL
T.
`;.
APPROXIMATESLURRY WALL.. '`.
TOP OF BEDROCK .:..:...:.:....::. ... ,..: (CEMENT-SOIL-BENTONITE)_.
— � � _ � � , WEATHEREDBEDRO
.:...:.:..
FINAL SLOPE DETAIL T /��T�/,/
SUITABLE
0 30' 60' ////
SCALE IN FEET TRENCH BOTTOM
KEYED 4'MIN.INTO
SUITABLE BEDROCK,
TYPICAL SLURRY WALL DETAIL
NOT TO SCALE
4.5' 19, 4.5'
10' 2.5' 10'
r6'STEEL"T"POST IN CENTER OF SLURRY WALL SLOPE 3:1 OR SLOPE 3:1 OR
TO IDENTIFY CENTERLINE OF AS-CONSTRUCTED FEATHER AT FLATTER FEATHER AT FLATTER
SPREAD EXCESS TRENCHED AND ALIGNMENT.MAXIMUM SPACING 1DO'ON CENTER AND SLOPES AS SLOPES AS
BACK FILL MATERIAL TO THE PR ALL ANGLE POINTS OR POINTS OF TANGENCY NECESSARY 1'CLASS 5 ROADBASE NECESSARY
SIDE OF THE SLURRY WALL.
O O o 0 0 Oo 0 0 0 o p o p0 0 0 o p p p o 0
10' 3' 3' 3' o 0 0o C o o 0 0 0 0 o O o 0 0 0 0 0 o 0
3 (NOMINAL) FILTER CLOTH OVERLAIN 16"CRUSHED ROCK
—11 1' MIN.OR GREATER
- TO TOP OF EXISTING BY GEOGRID FABRIC TO MEET REQUIRED
`EXISTING SLURRY WALL X WORKING PLATFORM (AASHTO CLASS 2 TOP OF SLURRY WALL ROAD GRADE
WORKING PLATFORM NONWOVEN SEPARATION 0 TOP OF EXISTING
NOTES: FABRIC 8 TENSAR 1600 WORKING PLATFORM
LCLAYEY SOIL OR 1. CAP SHALL BE CONSTRUCTED,WITH T POST INSTALLED AS REQUIRED OR EQUIVALENT)OR 0.5"
S-B BACKFILL WITHIN 200'OF THE ACTIVE BACKFILL MIXING AREA. STEEL PLATE
SOIL BENTONITE
BACKFILL 2. CAP MAY REQUIRE LOCAL FIELD ADJUSTMENT TO MEET FINAL GRADING
3.0'MIN PLAN REQUIREMENTS,AS NECESSARY,TO MEET PROJECT INTENT.
SOIL BENTONITE
3. AFTER PRIMARY CONSOLIDATION OF THE SLURRY WALL,OWNER SHALL BACKFILL
PROVIDE FINAL GRADING OF CAP MATERIAL AND EXCESS MATERIAL 3.0'MIN
STOCKPILES PER RECLAMATION PLAN.
SLURRY WALL TRENCH CAP DETAIL PERMANENT ROAD CROSSING DETAIL
NOT TO SCALE NOT TO SCALE
3 NOTES:
v/z
1. PERMANENT ROAD CROSSING TO BE LOCATED AT OWNER'S DIRECTION.
3 10,
Supplemental Dry Bentonite Spacing MIN. TIE-IN TAB
Start End Cast Out Fines Application Rate Between Bags
Station Station % (CY/LF) (lbs/LF) (30001b bag)
Feet DIRECTION OF EXCAVATION
0+00 8+00 10 1 288.12 13 AND SOIL BENTONITE
BACKFILL PLACEMENT
8+10 14+90 30 2.75 295.3 10 f
15+00 37+50 45 5.2 374.2 8
37+60 47+90 45 4 266.7 11
48+00 63+00 30 3.3 369.2 8
63+10 72+00 30 2.5 243.44 12
72+00 78+90 10 1 288.12 13 I a z°
_ TO'
I N O
1. TABLE BASED ON SUPPLEMENTAL FINES WITH AN AVERAGE OF 80%PASSING THE#200 SIEVE. O O
q CUTOFF WALL ALIGNMENT z
v M
O
2. RATES SHOWN ARE FOR A MINIMUM OF 30%PASSING#200 SIEVE FOR S-B BACKFILL AND MAY REQUIRE csi Z m
ADJUSTMENT. NOTES: I 3 z x
3 3. BAG SPACING BASED ON A DRY BENTONITE APPLICATION RATE OF 1%AND MAY BE ADJUSTED BASED ON 1. TIE-IN TAB SHALL BE USED FOR SOIL BENTONITE CUTOFF WALL CONSTRUCTION �M D
o THE FINAL MIX DESIGN AND THE MINIMUM OF FINES PASSING 92DO SIEVE AS APPROVED BY DESIGN AT STA.O+DO -� DELTA WATER STORAGE
ENGINEER. 2. CONTINUOUS TRENCH WITH FULL DEPTH KEY SHALL EXTEND A MINIMUM OF 10' z
BEYOND THE INTERSECTION OF APPROXIMATE 90'TURN OF THE CUTOFF WALL. REVISIONS
NO. DESCRIPTION DATE BY DETAILS
1 30%REVIEW SET 5-840 SAR
2 60%REVIEW SET 7-21-20 SAR D E E RE & AU LT 8605.P1RRORT RO.,BIDG.P.BUTE 305
LGrvGMONT.CO BO506
SLURRY WALL TIE-IN TAB 3 90%REVIEW SET 8-7-20 SA R eL—.551.14aeFnxwa.eeAn
- NOT TO SCALE 4 ADDITIONAL DRILLING 11-9-20 SAE.DESIGNED BY: SAR APPROVED BY: BAR JOB N0. SHEET:
5 FOR CONSTRUCTION 3-5-21 SAR
DRAWN BY: ITR PATE:MARCH 2O21 F
439017.00 Q
CHECKED BY: CJH SCALE:AS NOTED