Attachment 2 Kanawha County EWP Const Dwgs.pdf
PDF 7 MB Posted
- Solicitation number
- 12FPC325B0002
About this file
This file contains construction drawings for an Emergency Watershed Protection (EWP) Streambank Stabilization project in Kanawha County, West Virginia, focusing on Two and Three Quarter Mile Creek. The drawings detail the technical specifications for gabion wall construction at two sites, with wall heights ranging from 10.5 to 18 feet. The project involves stabilizing streambanks using rock-filled wire-mesh gabions, with specific instructions for foundation preparation, wall layering, counterfort installation, and geotextile placement.
The technical drawings provide comprehensive details for contractors, including site maps, wall cross-sections, foundation preparation methods, and channel bottom configuration. Key technical specifications include using No. 10 rebar for foundation reinforcement, installing gabion baskets with specific lacing techniques, and ensuring proper backfill and drainage. The project sites are located near St. Albans, West Virginia, with precise GPS coordinates provided, and the construction aims to address erosion and streambank stability using engineered gabion wall structures.
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UTILITY NOTIFICATION
"The Natural Resources Conservation Service makes no representation as to the existence or non-existence of any utilities at the construction site. Shown on these construction drawings are those utilities which have been identified. It is the responsibility of the contractor(s) to assure themselves that no hazard exists or damage will occur to utilities."
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COVER SHEET
QUANTITIES AND CONSTRUCTION NOTES
LOCATION MAP
SHEET LIST TABLE
SITE MAP
SHEET TITLE
SITE 1 - PLAN VIEW
SITE 2 - PLAN VIEW
TYPICAL SECTION ON RIPRAP FOUNDATION
Kanawha County
SITE 1 - TYPICAL 12' HIGH GABION WALL SECTION
SITE 1 - TYPICAL 12' HIGH GABION WALL DETAILS
SITE 1 - TYPICAL 10.5' HIGH GABION WALL SECTION
SITE 1 - TYPICAL 10.5' HIGH GABION WALL DETAILS
SITE 2 - TYPICAL GABION WALL SECTION
SITE 2 - TYPICAL GABION WALL DETAILS
13 TYPICAL FOUNDATION PREPARATION ON SHALLOW BEDROCK
TYPICAL CHANNEL BOTTOM CONFIGURATION15
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JOB APPROVAL
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CLASS V
AutoCAD SHX Text DRAWINGS PREPARED UNDER THE AUTHORITY OF THE EMERGENCY WATERSHED PROTECTION ACT by the NATURAL RESOURCES CONSERVATION SERVICE of the UNITED STATES DEPARTMENT OF AGRICULTURE STREAMBANK STABILIZATION TWO & THREE QUARTER MILE CREEK SITE 1 - DAMAGE SURVEY REPORT NO. 54-02-24-5085-013 SITE 2 - DAMAGE SURVEY REPORT NO. 54-02-24-5085-018 KANAWHA COUNTY, WEST VIRGINIA
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* THE AREA REQUIRED FOR OVERLAP IS NOT
INCLUDED IN THE QUANTITY FOR GEOTEXTILE.
CONSTRUCTION NOTES
1. Call 811 to locate utilities prior to mobilization and excavation.
2. Access roads shall be restored to pre-construction condition or better.
3. All fences removed and/or damaged as a result of the contractor's operations shall be restored to a condition equal to or better than they existed before the start of work.
4. Soil compacted as a result of construction operations shall be loosened for a depth of 6-inches below the compacted soil layer and re-graded to blend with existing ground.
5. Provide sub-channel as shown on Typical Channel Bottom Configuration drawing.
6. While working in the stream all efforts will be made to reduce downstream impacts including keeping the excavator tracks elevated above flowing water. A diversion berm shall be established at the top of each stream access point to minimize surface water from flowing toward the stream.
7. Required pollution control measures shall be installed as needed in accordance with Pollution Control Specification 5.
8. Site access shall be off the main road and shall be in accordance with all West Virginia Department of Highways rules and guidelines. The contractor shall provide signage and flagmen for traffic control as required.
9. Excess material from the excavation & obstruction removal shall be wasted off-site in accordance with all local, state, & federal regulations and as approved by the NRCS representative in the field. Floodplains will not be allowed as waste areas under any circumstances. Waste areas shall be seeded according to construction specification 6, Seeding, Sprigging and Mulching.
10. The contractor shall provide approved fill as required to complete the work.
11. Trash, tires, & woody debris within the work limits shall be disposed of off-site in an approved landfill. The contractor shall be responsible for the landfill tipping fees.
12. All pipes encountered in the embankment shall be extended through the riprap and/or gabions with the same pipe material or better to the face of the slope or baskets.
13. Pipes 12" diameter and larger shall be encased in a minimum of 6" of concrete when passing through rock riprap. Concrete shall have a minimum compressive strength of 2500 psi.
14. The contractor shall maintain the cleanliness of public and private roads impacted by hauling operations during the duration of the work.
15. Starting location of baskets will be marked in the field.
16. Reshape stream banks at the upstream and downstream ends of gabion walls to transition to baskets as directed by NRCS representative.
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TABLE OF ESTIMATED QUANTITIES
SITE
GABION
GEOTEXTILE
SY*
RIPRAP
TONS
GABIONS
CY
EARTH FILL
CY
1 429 -- 351 AS NEEDED
FOUNDATION PREP
SHALLOW BEDROCK
SY**
FOUNDATION PREP
ROCK RIPRAP
TONS***
FOUNDATION PREP
GEOTEXTILE
SY***
2 265 20 226 60 140 162
TOTAL 694 20 577 183 471 579
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AS NEEDED
AS NEEDED
REINFORCEMENT
SHALLOW BEDROCK
SY**
** QUANTITIES ASSUMING BEDROCK
ENCOUNTERED FOR ENTIRE AREA.
*** QUANTITIES ASSUMING ROCK RIPAP
FOUNDATION FOR ENTIRE AREA.
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SITE 2
LAT: N38.365423
LONG: W81.788428
SITE 1
LAT: N38.366128
LONG: W81.788907
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SITE 2
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GREEN VALLEY DR
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SITE 1
ACCESS
TBM2
TBM3
TBM1
SHEET 5
SHEET 10
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ACCESS
147' OF GABION WALL.
SEE DETAILS, SHEETS 5 - 9.
51' OF GABION WALL.
SEE DETAILS, SHEETS 10 - 12.
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LEGEND
TOP OF BANK
CENTERLINE OF STREAM
TOE OF SLOPE
CONSTRUCTION LIMITSCL
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NAD83 WV STATE PLANE, SOUTH ZONE, US FOOT GRID. NAVD88 VERTICAL DATUM
ELEVATIONEASTINGNORTHINGDESCRIPTION
EXISTING TBM2 - HUB, ORANGE 584.781742446.59498426.56
PROJECT CONTROL
583.231742375.02498462.60EXISTING TBM3 - HUB, ORANGE
CONTROL POINT
EXISTING TBM1 - MAG NAIL 591.921742369.26498102.10
SEWER LINES
NOTES:
1. CONTRACTOR SHALL WORK WITH THE KANAWHA
COUNTY SEWER BOARD TO RELOCATE SEWER LINE
AS NEEDED DURING CONSTRUCTION. SEWER LINE
LOCATION IS APPROX. AND DEPTH IS UNKNOWN.
2. STOCKPILE/DISPOSAL AREA FOR EXCAVATED
MATERIAL SHALL BE REQUIRED AT AN APPROVED
LOCATION OFFSITE.
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UTILITY POLE
EXISTING 15-INCH CORRUGATED METAL
CULVERT OUTLET, TOP @ ELEVATION 583.9
HOUSE
MANHOLE
RISER
ACCESS75' OF 10.5' HIGH
GABION WALL
72' OF 12' HIGH
GABION WALL
TBM2
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PARKSIDE DR
MATCH TO SHEET 10
DO NOT DISTURB
LEFT BANK
DEBRIS REMOVAL AND
CHANNEL SHAPING AT AND
BETWEEN SITES 1 AND 2 AS
DIRECTED BY THE NRCS
REPRESENTATIVE.
NOTES:
1. DEBRIS AND REQUIRED TREE REMOVAL WITHIN CONSTRUCTION
LIMITS SHALL BE DISPOSED OF AT AN APPROVED LOCATION OFFSITE.
2. TOTAL DEWATERING OF THE WORK AREA IS REQUIRED. A
DEWATERING PLAN MUST BE APPROVED PRIOR TO WORK BEGINNING.
3. GABION WALL ALIGNMENT, LAYOUT, LENGTH AND HEIGHT TRANSITION
LOCATION MAY VARY AS DETERMINED BY THE NRCS REPRESENTATIVE.
4. BACKFILL MATERIAL BEHIND GABIONS SHALL BE FROM CHANNEL
SHAPING AND/OR STOCKPILED MATERIAL AS DETERMINED BY THE
NRCS REPRESENTATIVE. BACKFILL MATERIAL SHALL BE FREE OF
TRASH, CONCRETE, WOODY DEBRIS, ETC.
5. CONTRACTOR SHALL CONSERVE SUITABLE MATERIALS FOR FINAL
GRADING AND SEEDING OPERATIONS.
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EXISTING BURIED 8-INCH PVC
SEWER LINE. SEE NOTE 1, SHEET 4.
SET GABION WALL
@ ELEVATION 571.7
SET GABION WALL
@ ELEVATION 569.7
RESTORE ORIGINAL
STREAM BOTTOM
WIDTH APPROX. 25'
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2' MIN. EMBEDMENT OR TO BEDROCK
IF BEDROCK IS LESS THAN 2', SEE
FOUNDATION PREPARATION ON
SHALLOW BEDROCK, SHEET 13.
6'x 3'x 3'
6'x 3'x 3'
2' MIN.
9.5
6°
1' MIN.
LOWEST POINT
IN STREAM
EXCAVATION LIMITS
BACKFILL AFTER GABION
INSTALLATIONEXCAVATION LIMITS
GEOTEXTILE
POSITIVE DRAINAGE
TYPICAL 12' HIGH GABION WALL
NOTES
1. SEE TYPICAL CHANNEL BOTTOM CONFIGURATION SHEET 15.
2. REFER TO SHEET 2 FOR ESTIMATED QUANTITIES.
3. AFTER THE FOUNDATION IS EXCAVATED, NRCS REPRESENTATIVE
SHALL DETERMINE IF FOUNDATION TREATMENT WILL BE REQUIRED
AND TYPE. SEE FOUNDATION DETAILS ON OTHER SHEETS.
4. THE CONTRACTOR SHALL ONLY EXCAVATE THE AMOUNT OF
FOUNDATION NEEDED TO INSTALL THE BOTTOM LAYER OF GABION
WALL INTENDED TO PLACE, LACE, FILL AND BACKFILL DURING THE
SAME WORK DAY.
5. ENTIRE LAYER OF GABIONS SHALL BE INSTALLED BEFORE
STARTING THE NEXT LAYER.
6. BACKFILL BEHIND EACH LAYER AS THE LAYERS PROGRESS
VERTICALLY.
6'x 4.5'x 3'
6'x 4.5'x 3' 6'x 3'x 3'
EXISTING
GROUND
1' BACKFILL
TYP.
1.5'
7.5' MIN.
OR FLATTER BASED ON
ACTUAL SITE CONDITIONS
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6'x 3'x 3'
9'x 3'x 3'
6'x 3'x 3' 6'x 3'x 3'
TYPICAL 12' HIGH GABION WALL
WITH COUNTERFORT
INSTALL COUNTERFORT
AT BEGINNING AND END
OF 12' GABION WALL
1.5' (TYP.)
1/3 H
1/3 H
1/3 H
1/3 L 1/3 L
1/3 L
INTERIOR SUPPORT DETAIL
5"5"
LACING DETAIL
1/3 L 1/3 L
1/3 L
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CONSTRUCTION NOTES
1. EACH VERTICAL SEAM SHALL BE LACED PRIOR TO SETTING BASKET
IN PLACE AND PRIOR TO LACING TO ADJOINING BASKETS.
2. EACH BASKET SHALL BE LACED TO THE ADJOINING BASKET AT ALL
VERTICAL EDGES AND HORIZONTAL EDGES.
3. EACH DIAPHRAGM SHALL BE LACED TO THE LID OF THE BASKET
AFTER CLOSING. DIAPHRAGM SHALL BE LACED ALONG ALL SIDES.
4. ALL LACING SHALL BE DONE WITH 13.5 GAUGE WIRE USING THE TWO,
ONE, TWO, LOOPING PROCEDURE AS SHOWN IN THE LACING DETAILS.
5. ALL WIRE SHALL BE TIGHTLY LACED AND THE ENDS OF THE LACING
WIRE SHALL BE DOUBLED BACK AND TWISTED NOT LESS THAN THREE
TURNS AROUND ITSELF IN A LENGTH NOT GREATER THAN ONE INCH.
6. INSTALL ACCORDING TO MANUFACTURER'S RECOMMENDATIONS.
7. GABION BASKET LENGTH MAY VARY FROM TYPICAL LAYER DIAGRAM
WHERE APPLICABLE TO STAGGER SEAM WITH LAYER BELOW AS
APPROVED BY THE NRCS REPRESENTATIVE.
WIRE DOUBLED BACK
AND TWISTED
LAYER 3
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6' x
3' x
3'
6'x 3'x 3'
LAYER 2 LAYER 1
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15'
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TYPICAL10.5' HIGH GABION WALL
2' MIN. EMBEDMENT OR TO BEDROCK
IF BEDROCK IS LESS THAN 2', SEE
FOUNDATION PREPARATION ON
SHALLOW BEDROCK, SHEET 13.
6'x 3'x 3'
2' MIN.
9.5
6°
1' MIN.
LOWEST POINT
IN STREAM
EXCAVATION LIMITS
BACKFILL AFTER GABION
INSTALLATIONEXCAVATION LIMITS
GEOTEXTILE
6'x 4.5'x 3'
8.
5'
6'x 4.5'x 3' 6'x 3'x 3'
EXISTING
GROUND
6'x 3'x 1.5'
TYP.
1.5'
POSITIVE DRAINAGE
7.5' MIN.
NOTES
1. SEE TYPICAL CHANNEL BOTTOM CONFIGURATION SHEET 15.
2. REFER TO SHEET 2 FOR ESTIMATED QUANTITIES.
3. AFTER THE FOUNDATION IS EXCAVATED, NRCS REPRESENTATIVE
SHALL DETERMINE IF FOUNDATION TREATMENT WILL BE REQUIRED
AND TYPE. SEE FOUNDATION DETAILS ON OTHER SHEETS.
4. THE CONTRACTOR SHALL ONLY EXCAVATE THE AMOUNT OF
FOUNDATION NEEDED TO INSTALL THE BOTTOM LAYER OF GABION
WALL INTENDED TO PLACE, LACE, FILL AND BACKFILL DURING THE
SAME WORK DAY.
5. ENTIRE LAYER OF GABIONS SHALL BE INSTALLED BEFORE
STARTING THE NEXT LAYER.
6. BACKFILL BEHIND EACH LAYER AS THE LAYERS PROGRESS
VERTICALLY.
1' BACKFILL
OR FLATTER BASED ON
ACTUAL SITE CONDITIONS
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6'x 3'x 1.5' 6'x 3'x 1.5'
TYPICAL 10.5' HIGH GABION WALL
WITH COUNTERFORT
INSTALL COUNTERFORT AT
END OF 10.5' GABION WALL
6'x 4.5'x 3'
6' x
3' x
1.
5'
LAYER 1
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3' x
1.
5'
3'
LAYER 1
SEE CONSTRUCTION NOTES,
GABION BASKET LACING AND
INTERIOR SUPPORT DETAILS ,
SHEET 7.
9'x 3'x 3'
LAYER 3
6'x 3'x 3'
6'x 4.5'x 3'
6'x 3'x 3'
LAYER 2
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6' 4.5'
LAYER 4
7.5'
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6' x
3' x
3' 6' x 3' x 3'
.5
15'
COUNTERFORT
LA
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LA
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LA
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1.5' (TYP.)
LAYER DIAGRAM
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
9'x 3'x 3'
6'x 3'x 3'
6'x 4.5'x 3'
6'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3'
Na tu ra l R es ou rc es
Co ns er va tio n
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C L
C L
C L
C L
C L
C L
C L
C L
C L
C L
C L
CL
CL
CL
S
S
S
S
S
S
MATCH TO SHEET 5
HOUSE
HOUSE
HOUSE
PRIVATE BRIDGE
PINE ST
12' O F 18' H
IG
H
G
ABIO
N W
ALL
EXISTING CHAIN-LINK FENCE
TO BE REMOVED. REINSTALL
AFTER FINAL GRADING.
EXISTING WATER METER
DO NOT DISTURB
51' O F G
ABIO
N
W
ALL
ACCESS
NOTES:
1. DEBRIS AND REQUIRED TREE REMOVAL
WITHIN CONSTRUCTION LIMITS SHALL BE
DISPOSED OF AT AN APPROVED LOCATION
OFFSITE.
2. TOTAL DEWATERING OF THE WORK AREA
IS REQUIRED. A DEWATERING PLAN MUST BE
APPROVED PRIOR TO WORK BEGINNING.
3. GABION WALL ALIGNMENT, LAYOUT, LENGTH
AND HEIGHT TRANSITION MAY VARY AS
DETERMINED BY THE NRCS REPRESENTATIVE.
4. BACKFILL MATERIAL BEHIND GABIONS SHALL
BE FROM CHANNEL SHAPING AND/OR
STOCKPILED MATERIAL AS DETERMINED BY
THE NRCS REPRESENTATIVE. BACKFILL
MATERIAL SHALL BE FREE OF TRASH,
CONCRETE, WOODY DEBRIS, ETC.
5. CONTRACTOR SHALL CONSERVE SUITABLE
MATERIALS FOR FINAL GRADING AND
SEEDING OPERATIONS.
SET TOP OF 9' GABION WALL ELEVATION AT TOP
OF BRIDGE ABUTMENT FOOTER ELEVATION 579.1
SEE DETAILS, SHEET 11.
FILL AREA BETWEEN EXISTING ABUTMENT
AND GABION WALL WITH 6"- 18" ROCK RIPRAP
AS DIRECTED BY NRCS REPRESENTATIVE.
EXISTING WATERLINE
NOT IN USE BUT COULD
BE PRESSURIZED
EXISTING BURIED 8-INCH PVC
SEWER LINE. SEE NOTE 1, SHEET 4.
EXISTING WATER METER
AND LINE LOCATION
DO NOT DISTURB
C L
C L
CL
CL
CL
CL
CL
CL
PARKSIDE DR
DEBRIS REMOVAL AND CHANNEL
SHAPING AT AND BETWEEN SITES 1
AND 2 AS DIRECTED BY THE NRCS
REPRESENTATIVE
12' O F 15' H
IG
H
G
ABIO
N W
ALL
27' O
F 12' H
IG
H
G
ABIO
N W
ALL
RESTORE ORIGINAL
STREAM BOTTOM
WIDTH APPROX. 20'
SET GABION WALL
@ ELEVATION 570.1
COUNTERFORT. INSTALL MIDWAY
AND END OF GABION WALL.
SEE DETAILS, SHEET 12.
SET GABION WALL
@ ELEVATION 570.1
EXISTING GAS METER
APPROX LOCATION
DO NOT DISTURB
DO NOT CROSS PRIVATE BRIDGE WITH
EQUIPMENT OR HEAVY VEHICLES. Na tu ra l R es ou rc es
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LEGEND
MINOR CONTOUR
MAJOR CONTOUR
TOP OF BANK
CENTERLINE OF STREAM
TOE OF SLOPE
EDGE OF ROAD
CONSTRUCTION LIMITSCL
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SEWER LINES
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NOTES
1. SEE TYPICAL CHANNEL BOTTOM CONFIGURATION SHEET 15.
2. REFER TO SHEET 2 FOR ESTIMATED QUANTITIES.
3. AFTER THE FOUNDATION IS EXCAVATED, NRCS REPRESENTATIVE
SHALL DETERMINE IF FOUNDATION TREATMENT WILL BE REQUIRED
AND TYPE. SEE FOUNDATION DETAILS ON OTHER SHEETS.
4. THE CONTRACTOR SHALL ONLY EXCAVATE THE AMOUNT OF
FOUNDATION NEEDED TO INSTALL THE BOTTOM LAYER OF GABION
WALL INTENDED TO PLACE, LACE, FILL AND BACKFILL DURING THE
SAME WORK DAY.
5. ENTIRE LAYER OF GABIONS SHALL BE INSTALLED BEFORE
STARTING THE NEXT LAYER.
6. BACKFILL BEHIND EACH LAYER AS THE LAYERS PROGRESS
VERTICALLY.
7. TYPICAL 15' HIGH GABION WALL INCLUDES SAME DETAILS AS
BELOW WITHOUT LAYER 1, HEIGHT ABOVE LOWEST POINT IN
STREAM AT 13'.
8. TYPICAL 12' HIGH GABION WALL INCLUDES SAME DETAILS AS
BELOW WITHOUT LAYER 1 AND LAYER 2, HEIGHT ABOVE LOWEST
POINT IN STREAM AT 10'.
TYPICAL 18' HIGH GABION WALL
TYP.
EXISTING
GROUND
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
9'x 3'x 3'
POSITIVE DRAINAGE
EXCAVATION LIMITS. BACKFILL
AFTER GABION INSTALLATION,
1' MIN.
10.5'
2' MIN. EMBEDMENT OR TO BEDROCK
IF BEDROCK IS LESS THAN 2', SEE
FOUNDATION PREPARATION ON
SHALLOW BEDROCK, SHEET 13.
9.5
6°
GEOTEXTILE
6'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3' 6'x 3'x 3'
SET TOP OF 9' GABION WALL
ELEVATION AT TOP OF RIGHT
BRIDGE ABUTMENT FOOTER
ELEVATION 579.1
LA
YE
R
LA
YE
R
LA
YE
R
LA
YE
R
LA
YE
R
LA
YE
R
1.5'
WATER LEVEL
LOWEST POINT
IN STREAM
OR FLATTER BASED ON
ACTUAL SITE CONDITIONS
1' BACKFILL
2' MIN.
Na tu ra l R es ou rc es
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LA
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LA
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R
LA
YE
R
LA
YE
R
LA
YE
R
LA
YE
R
9'x 3'x 3'
6'x 3'x 3'
6'x 4.5'x 3'
6'x 3'x 3'
LAYER 3 LAYER 2 LAYER 1
FR
O
N T
FA
C
E
6'x 3'x 3'
LAYER 4
FR
O
N T
FA
C
E
7.5'
6' x
3' x
3'
LAYER 5
9'x 3'x 3'
LAYER 6
6' x
3' x
3'
4.5' 3'6'9'10.5'
FR
O
N T
FA
C
E
FR
O
N T
FA
C
E
FR
O
N T
FA
C
E
FR
O
N T
FA
C
E
9'x 3'x 3'
9'x 3'x 3'
9'x 3'x 3'6' x
3' x
3' 6' x 3' x 3'
6' x
3' x
3' 6' x 3' x 3'
6'x 4.5'x 3'
6' x
3' x
3' 6' x 3' x 3'
6'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3'
LAYER DIAGRAM
INSTALL COUNTERFORT AT
END OF 12' GABION WALL
1.5'
(TYP.)4.5'
INSTALL DOUBLE COUNTERFORT
AT END OF 15' GABION WALL ON
LAYERS 2, 3 & 4 AS SHOWN.
SEE CONSTRUCTION NOTES,
GABION BASKET LACING AND
INTERIOR SUPPORT DETAILS,
SHEET 7.
COUNTERFORT LAYOUT
CONFIGURATION MAY VARY AS
DETERMINED BY THE NRCS
REPRESENTATIVE
6'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3'
9'x 3'x 3'
6'x 3'x 3'
9'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3'
6'x 3'x 3'
GABION WALL
WITH COUNTERFORT
51' 24'
6'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'x 4.5'x 3'
6'
9'x 3'x 3'
9'x 3'x 3'
Na tu ra l R es ou rc es
Co ns er va tio n
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1.25'
(TYP.)
VARIES
VA
R
IE
S
1' MIN. TO 1.5' MAX.
0' TO 2' MAX.
STREAM BOTTOM
1.5'
2.5'
FRONT FACE OF PROPOSED GABIONS
WITH REBAR SPACING
BEDROCK
1.25' MAX.
(TYP.)
2.
5'
M
AX
(T
YP
1.25' (TYP.)
NO. 10 REBAR
(TYP.)
NO. 10 REBAR
(TYP.)
4.
5'
VARIES
FOUNDATION PREPARATION PAYMENT LIMITS
1' MIN. TO 1.5' MAX.
FO
U
N D
AT
IO
N
PR
EP
AR
AT
IO
N
PA
YM
EN
T
LI
M
IT
S
FOOT PRINT OF PLANNED GABIONS &
REBAR/DRILLHOLE PATTERN
0' TO 2' MAX.
VA
R
IE
S
1.5'
2.5'
2.5' MAX.
(TYP.)1' MIN. TO 1.5' MAX.
FINAL GRADE
SIDE VIEW PROPOSED GABIONS
WITH REBAR SPACING
MAXIMUM ANGLE OF
REBAR/DRILLHOLE PATTERN
~1.5'
~2.5'
15° MAX.
VERTICAL NO. 10 REBAR
(TYP.)
MAX. TILT OF
REBAR/DRILLHOLE
FRONT OF
BASKET
BACK OF
BASKET
STREAM BOTTOM
BEDROCK
1' MAX.
BEDROCK
NOTES:
1. Drill holes for Rebar shall be 1 3/8" diameter. The use of epoxy or non-shrink grout is not required.
The rebar shall be driven by hammer to the required depth without bending.
2. Care shall be taken by the contractor to prevent damage to the rebar during gabion filling operations.
3. Different gabion bottom basket configurations will require additional rebar by repeating the pattern shown. Quantities on sheet 2 based on bottom width x length.
NOTE: Final pattern and spacing to be directed by NRCS representative in the field. Na tu ra l R es ou rc es Co ns er va tio n Se rv ice
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9.5
6°
FINAL
GRADE
EXCAVATION LIMITS
BACKFILL AFTER GABION
INSTALLATIONFINAL GRADE
CHANNEL BOTTOM
EXCAVATION LIMITS
BACKFILL AFTER
GABION INSTALLATION
POSITIVE DRAINAGE
TYPICAL SECTION ON RIPRAP FOUNDATION
1.5'
1.5'
3' MIN.
VA
R
IE
S
FOUNDATION PREPARATION PAYMENT LIMITS
(VARIES WITH GABION CONFIGURATION)
NRCS REPRESENTATIVE WILL
DETERMINE DEPTH OF ROCK RIPRAP
IN THE FIELD.
GEOTEXTILE
0.6'
ROCK RIPRAP FOUNDATION PREPARATION
6"- 18" GRADATION.
OR FLATTER BASED ON
ACTUAL SITE CONDITIONS
2' MIN. BACKFILL
NRCS REPRESENTATIVE WILL DETERMINE
DISTANCE BASED ON ACTUAL SITE CONDITIONS
(ASSUMED 3' FOR QUANTITIES ON SHEET 2)
Na tu ra l R es ou rc es
Co ns er va tio n
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Notes:
1. Final location of subchannel to be located in the field by the NRCS representative. The subchannel shall be transitioned as necessary to meet existing grades at the upstream and downstream site extents.
2. Subchannels are not required for bedrock streambeds.
3. Use material from the required excavations and/or approved fill from offsite to reconstruct streambanks as necessary. Seed and mulch per construction specification 6, Seeding, Sprigging and Mulching.
EXISTING
GROUND
FINAL STREAM BOTTOM SHALL
BE ROUGH & IRREGULAR.
PROVIDE POSITIVE DRAINAGE
TOWARD SUBCHANNEL.
~1
~1
1'
1/3 BW
SUBCHANNEL
BOTTOM WIDTH
(BW)
~2
DEPOSITION VARIES
CHANNEL BOTTOM CONFIGURATION
SEE SITE PLAN
Na tu ra l R es ou rc es
Co ns er va tio n
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Ag ric ul tu re
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| Sheets and Views |
| 8.5x11 Site Map |
| KC_5-Site1_planview.pdf |
| Sheets and Views |
| 8.5x11 Landscape |
| KC_6-Site1_GabSec12.pdf |
| Sheets and Views |
| 6_12FT-SEC |
| KC_8-Site1_GabSec10.pdf |
| Sheets and Views |
| 8_10.5FT-SEC |
| KC_7-Site1_GabDetails12.pdf |
| Sheets and Views |
| 7_12FT-GABION DETAILS |
| KC_9-Site1_GabDetails10.pdf |
| Sheets and Views |
| 9_10.5FT-GABION DETAILS |
| KC_10-Site2_planview.pdf |
| Sheets and Views |
| SITE 2 PLAN VIEW (2) |
| KC_11-Site2_GabSec18.pdf |
| Sheets and Views |
| 11_18FT-SEC |
| KC_12-Site2_GabDetails18.pdf |
| Sheets and Views |
| 12_18FT-GABION DETAILS |
| KC_13_TYP BEDROCK.pdf |
| Sheets and Views |
| 13-TYP BEDROCK |
| KC_14_TYP RiprapFoundation.pdf |
| Sheets and Views |
| 14-RIPRAP FOUNDATION |
| KC_15_TypChannel.pdf |
| Sheets and Views |
| 15-TYP CHANNEL |
| KC_2-Quantities&Notes.pdf |
| Sheets and Views |
| Quantities and Construction Notes |
| KC_14_TYP RiprapFoundation.pdf |
| Sheets and Views |
| 14-RIPRAP FOUNDATION |
| KC_1-Cover..pdf |
| Sheets and Views |
| 8.5x11 Cover |
| KC_3-LocationMap.pdf |
| Sheets and Views |
| 8.5x11 Landscape |
| KC_14_TYP RiprapFoundation.pdf |
| Sheets and Views |
| 14-RIPRAP FOUNDATION |
| KC_12-Site2_GabDetails18.pdf |
| Sheets and Views |
| 12_18FT-GABION DETAILS |
| KC_5-Site1_planview.pdf |
| Sheets and Views |
| 8.5x11 Landscape |
| KC_6-Site1_GabSec12.pdf |
| Sheets and Views |
| 6_12FT-SEC |
| KC_7-Site1_GabDetails12.pdf |
| Sheets and Views |
| 7_12FT-GABION DETAILS |
| KC_8-Site1_GabSec10.pdf |
| Sheets and Views |
| 8_10.5FT-SEC |
| KC_9-Site1_GabDetails10.pdf |
| Sheets and Views |
| 9_10.5FT-GABION DETAILS |
| KC_10-Site2_planview.pdf |
| Sheets and Views |
| SITE 2 PLAN VIEW (2) |
| KC_11-Site2_GabSec18.pdf |
| Sheets and Views |
| 11_18FT-SEC |
| KC_12-Site2_GabDetails18.pdf |
| Sheets and Views |
| 12_18FT-GABION DETAILS |
| KC_12-Site2_GabDetails18.pdf |
| Sheets and Views |
| 12_18FT-GABION DETAILS |
| KC_2-Quantities&Notes.pdf |
| Sheets and Views |
| Quantities and Construction Notes |
| KC_2-Quantities&Notes.pdf |
| Sheets and Views |
| Quantities and Construction Notes |
| KC_6-Site1_GabSec12.pdf |
| Sheets and Views |
| 6_12FT-SEC |
| KC_8-Site1_GabSec10.pdf |
| Sheets and Views |
| 8_10.5FT-SEC |
| KC_11-Site2_GabSec18.pdf |
| Sheets and Views |
| 11_18FT-SEC |
File details come from the government source that posted it. Updated .