A1_Drawings_9_pages_Amended_0001.pdf

RECOMMENDED BY:

APPROVED:

FOREST ENGINEER

DISTRICT RANGER

DATE

DATE

DATE

FOREST SUPERVISOR

INDEX OF SHEETS

SHT SHEET TITLE DATE

G-1 TITLE

G-2 LOCATION MAP

3/15/24

G-3 SCHEDULE OF ITEMS & NOTES

3/20/24

D-1 BASE PLAN AND SECTIONS

3/20/24

D-2 BASE PROFILES

3/20/24

D-3 SLIDE SECTION

3/20/24

D-4 RECONSTRUCTION PLAN

3/20/24

D-5 RECONSTRUCTION SECTIONS 3/20/24

D-6 DRAIN SYSTEM 3/22/24

CON-DISASTER, RANCH M5 ROAD REPAIR

CALIFORNIA

COLUSA COUNTY

R05 PACIFIC SOUTHWEST

MENDOCINONATIONAL FOREST

GRINDSTONE RANGER DISTRCT

United States Department of Agriculture

Forest Service

TRAVEL DIRECTIONS:

FROM STONYFORD, TRAVEL

WEST ON FOUTS SPRINGS ROAD

(CC 43A) FOR 6 MILES TO FSR M5.

TURN SOUTH (LEFT) AND TRAVEL

APPX. 12 MILES TO THE PROJECT

SITE.

FROM THE SOUTH, TURN OFF THE

SYONYFORD-LODOGA RD. ONTO

THE IRON MOUNTAIN RD. (CC 42).

CONTINUE WEST ONTO FSR

16N15 TO THE INTERSECTION

WITH M5. TURN NORTH (RIGHT)

AND TRAVEL

MILES TO LITTLE

STONY CREEK (A LOW-WATER

CROSSING). THE SITE IS

MILE

PAST (EAST OF) THE CREEK.

NOTE: VEHICLE TRAVEL

THROUGH THE SITE IS

CURRENTLY NOT POSSIBLE.

PROJECT LOCATION

MENDOCINO

NATIONAL

FOREST

DRAWING TITLE

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/2 0/2

4 0 6:

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(R05)

PACIFIC SOUTHWEST

M5 Slide Repair 23-1

MENDOCINO

NATIONAL FOREST

GRINGSTONE

RANGER DISTRICT

LOCATION

AND NOTES

3/20/24

G BUTLER

G BUTLER

F. RICO

G-2

TO CC 32 AND MAXWELL

M5

Letts Lake

2 MILES

W

W

D

TO CC 43A AND STONYFORD

M

17N02

N

N

N

N

N

N

W

D

STOCK PILE AND DISPOSAL

WATER SOURCES

NOTE: LITTLE STONY CREEK MAY

NOT SUPPLY SUFFICIENT QUANTITY

IN LATE SUMMER

TO CC 303

Little

Creek

Stony

PROJECT LOCATION

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DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/2 0/2

4 0 6:

G

EO

RG

EB

UT

LE

R

E:

\M

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ID

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GS

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M5

SL

ID

E_

F1 -R

5.D W

G;

(R05)

PACIFIC SOUTHWEST

M2 Slide Repair 23-1

MENDOCINO

NATIONAL FOREST

GRINDSTONE

RANGER DISTRICT

SCHEDULE OF ITEMS

WORK LIST and NOTES

3/20/24

G BUTLER

G BUTLER

F. RICO

G-3

NOTES TO THE SCHEDULE OF ITEMS

15210: THE GOVERNMENT HAS NO SPECIFIC REQUIREMENTS FOR THIS ITEM BEYOND

ASSISTING AND GUIDING THE CONTRACTOR IN MAINTAINING THE LOCATION, GRADES,

AND CONSTRUCTED CONFIGURATION AS SHOWN IN THE DRAWINGS. NO GEODETIC

SURVEY HAS BEEN PERFORMED IN THE AREA AND THE INFORMATION SHOWN HEREIN

IS RELATIVE ONLY TO THE IMMEDIATE AREA OF THE PROJECT. THE NEW ALIGNMENT

FOR THE ROAD WILL MAINTAIN THE PREEXISTING GRADE WITH THE CENTERLINE

MOVED ABOUT 10' NORTH AT STATION MARKED AS B . THAT PREEXISTING GRADE IS

SHOWN ON SHEET D-2. THE GOVERNMENT WILL STAKE A LOCATION TO REPRESENT

THE 4252'* ELEVATION

15713: WORK FOR THIS ITEM WILL INCLUDE ALL EQUIPMENT, MATERIALS, AND LABOR

NECESSARY TO PERFORM THE REQUIREMENTS OF THE APPROVED POLLUTION AND

EROSION CONTROL PLAN. THIS ITEM COVERS ALL WORK OF THE CONTRACT EXCEPT

THE PERMANENT EROSION CONTROL CONTAINED IN ITEM 62403.

20401 THIS ITEM COVERS ALL EXCAVATIONS AND BACKFILL (RECONSTRUCTION) OF THE

ROADWAY. INCLUDED ARE THE FINAL GRADING AND SHAPING OF THE BASE AREA (AT

ELEVATION 4252'*) FOR THE GEOGRID AND THE BACKWALL FOR THE GEOCOMPOSITE

DRAIN AND RIPRAP. EXCAVATED MATERIAL SHALL BE STOCKPILED IN AREAS

DESIGNATED BY THE CONTRACTING OFFICER WITHIN ¼ MILE OF THE WORK SITE.

25102 RIPRAP SHALL CONFORM TO ALL REQUIREMENTS AND SPECIFICATIONS OF SECTION

705.02. THERE IS NO IDENTIFIED SOURCE AVAILABLE ON GOVERNMENT LAND. ROCK

SHALL BE BOTH MACHINE AND HAND PLACED TO CREATE STABLE SLOPE RETENTION.

26101 THIS ITEM INCLUDES ALL NECESSARY HARDWARE FOR INSTALLATION IN

ACCORDANCE WITH SECTION 261 AND THE MANUFACTURES RECOMMENDATIONS.

INCLUDED ARE 120 20' SOIL NAILS WHICH SHALL BE INSTALLED IN ACCORDANCE WITH

SECTION 256, THE MANUFACTURERS RECOMMENDATIONS, AND AS SHOWN ON THE

DRAWINGS. PLACEMENT METHOD MAY BE BY DRILL/GROUT OR POWER LAUNCH. THE

CONTRACTOR SHALL SUBMIT PLACEMENT PLAN TO THE CONTRACTING OFFICER FOR

APPROVAL PRIOR TO WORK.

30102 THIS SECTION COVERS AGGREGATE TO BE PLACED ON THE ROAD OVER THE

DISTURBED AND RECONSTRUCTED AREA AS A SURFACE TREATMENT. THE AREA TO

BE COVERED WILL BE MARKED BY THE GOVERNMENT AND WILL BE APPROXIMATELY

6,000 SF. (16' x 375).

60504 THIS ITEM INCLUDES ALL MATERIALS AND LABOR TO INSTALL THE BACKWALL DRAIN

SYSTEM INCLUDING THE GEOCOMPOSITE, FASTENERS, HDPE PIPE & FITTINGS,

GEOTEXTILES, AND HDG EXIT PIPE. ALSO INCLUDED IS ALL EXCAVATION, BEDDING,

AND BACKFILL TO REGAIN THE BASE GRADE PRIOR TO THE ROAD EMBANKMENT.

62503 THIS ITEM INCLUDES ALL EQUIPMENT, MATERIALS, AND LABOR REQUIRED TO APPLY

SEED WITH TRACER BY A HYDRAULIC METHOD IN ACCORDANCE WITH SECTION 625.07.

63501 THIS ITEM INCLUDES ALL EQUIPMENT, MATERIALS, AND LABOR TO ESTABLISH AND

MAINTAIN THE APPROVED TRAFFIC CONTROL PLAN FOR THE DURATION OF SITE

WORK.

* THE 4240 AND 4252 ELEVATIONS ARE RELATIVE TO THE DESIGN ONLY. THEY DO NOT

REPRESENT SURVEYED ELEVATIONS.

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E

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/2 0/2

4 0 6:

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EO

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EB

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LE

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ID

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GS

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M5

SL

ID

E_

F1 -R

5.D W

G;

(R05)

PACIFIC SOUTHWEST

M5 SLIDE REPAIR 23-1

MENDOCINO

NATIONAL FOREST

GRINDSTONE RANGER

DISTRICT

PRE-EXISTING

PLAN AND SECTIONS

3/20/24

G BUTLER

G BUTLER

F. RICO

D-1

PRE-SLUMP PLAN

A B

C

SECTION A SECTION B SECTION C

PRE-SLUMP TRANSECTS

CL ROADCL ROAD CL ROAD

NOTES

1. THE CONTOURS ARE BASED ON

LIDAR SURVEYS FROM 2019,

THREE YEARS PRIOR TO THE

SLUMPS. THE ROAD ALIGNMENT

IS TAKEN FROM AERIAL AND

SATELLITE DATA FROM 2020 AND

2023 AND FIELD MEASUREMENTS

TAKEN IN 2023.

2. CONTOURS SHOWN ARE IN 2'

INCREMENTS.

3. THE LIDAR DATA THE FOREST

SERVICE HAS IS AVAILABLE FOR

THE CONTRACTORS USE AS IS IN

RAW DATA FORMAT.

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DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/2 0/2

4 0 6:

G

EO

RG

EB

UT

LE

R

E:

\M

NF

\M

5_

SL

ID

E-

SL

UM

P\

DW

GS

_M

AP

S\

M5

SL

ID

E_

F1 -R

5.D W

G;

(R05)

PACIFIC SOUTHWEST

M5 SLIDE REPAIR 23-1

MENDOCINO

NATIONAL FOREST

GRINDSTONE RANGER

DISTRICT

PRE-EXISTING PROFILES

3/20/24

G BUTLER

G BUTLER

F. RICO

D-2

SECTION C

Sta. 1377.08 (1383.49)

SECTION B

Sta. 1280.36 (1284.18)

SECTION A

Sta. 1186.05 (1187.15)

Sta. 1377.08Sta. 1280.36Sta. 1186.05

EXTENT OF SLUMP AS OBSERVED ON THE SURFACE

PROFILE OF ROAD ON CENTERLINE BETWEEN Sta. 1060 & 1450

WEST EAST

NOTES:

1. ELEVATION 4240 IS TAKEN FROM USGS 7.5' TOPOGRAPHIC MAP OF FOUTS SPRINGS 7.5'.

2. STATIONS ARE LOCATED AT THE CENTERLINE OF THE ROAD PRIOR TO THE SLUMP.

3. THE GRADE SHOWN IS AT THE CENTERLINE OF THE ROAD. NO PREVIOUS SURVEY DATA INDICATING THE GRADE IS CURRENTLY AVAILABLE.

THE GRADE (PROFILE) SHOWN IS INFERRED FROM THE CONTOURS SHOWN ON SHEET D-1

4. STATION NUMBERS: TOP NUMBER IS DISTANCE AT THE CENTERLINE OF ROAD, PRE-SLUMP. LOWER NUMBER (IN PARENTHESIS) IS THE

DISTANCE AT THE CENTERLINE OF THE REALIGNED ROAD. THESE NUMBERS WERE TAKEN FROM AERIAL AND SATELLITE PHOTOS AND

GROUND GIS RECORDINGS, EXPECTED ERROR IS 1.5'

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DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/2 0/2

4 0 6:

G

EO

RG

EB

UT

LE

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E:

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NF

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5_

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ID

E-

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UM

P\

DW

GS

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AP

S\

M5

SL

ID

E_

F1 -R

5.D W

G;

(R05)

PACIFIC SOUTHWEST

M5 SLIDE REPAIR 23-1

MENDOCINO

NATIONAL FOREST

GRINDSTONE RANGER

DISTRICT

SLUMP PROFILE

STATION 1280.36

3/20/24

G BUTLER

G BUTLER

F. RICO

D-3

10'

P-AP-B

ROAD - PRESLUMP PRIFILE - PRE-SLUMP PROFILE - POST SLUMP

NOTES:

1. THE GEOGRAPHICAL INFORMATION NOTED HEREIN IS NOT BASED ON ANY GEODETIC SURVEY OR

ANY GEODETIC DATUM. THE ELEVATIONS SHOWN ARE BASED ON A REASONABLE

INTERPRETATION OF CONTOURS SHOWN ON THE USGS Fouts Springs 7.5' MAP. THE STATIONS

SHOWN ARE MEASURED FROM THE CENTER OF THE CHANNEL AT THE LITTLE STONY CREEK

LOW-WATER CROSSING ALONG THE CENTER OF THE M5 ROAD.

2. PROFILES SHOWN HERE ARE THE RESULTS OF SURFACE SURVEYS AND MEASUREMENTS. NO

SUB-SURFACE INVESTIGATION WAS CONDUCTED BY THE GOVERNMENT. THE PRE-SLUMP

PROFILE IS DERIVED FROM LIDAR DATA GATHERED IN 2019. THE POST SLUMP PROFILE IS BASED

ON FIELD SURVEYS AND MEASUREMENTS CONDUCTED IN OCTOBER 2023

3. THE TWO SLIP PLANES SHOWN ARE INFERRED FROM SURFACE INDICATIONS. P-A IS PRESUMED

TO BE THE PRIMARY WITH P-B AS A POSSIBLE ACCESSORY SLIP PLANE.

4. CONTOURS ARE AT 2' INTERVALS. VERTICAL GRID LINES ARE 10' APART.

4240'

4250'

4260'

4230'

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DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/2 0/2

4 0 6:

G

EO

RG

EB

UT

LE

R

E:

\M

NF

\M

5_

SL

ID

E-

SL

UM

P\

DW

GS

_M

AP

S\

M5

SL

ID

E_

F1 -R

5.D W

G;

(R05)

PACIFIC SOUTHWEST

M5 SLIDE REPAIR 23-1

MENDOCINO

NATIONAL FOREST

GRINDSTONE RANGER

DISTRICT

RECONSTRUCTION

PLAN

3/20/24

G BUTLER

G BUTLER

F. RICO

D-4

RE-ALIGNED ROAD

EDGE OF ROAD

M5 ROAD ALIGNMENTS

TOP OF CUT SLOPE RIPRAP

EDGE OF ROAD

PRE-SLUMP

CNTR. OF ROAD

PRE-SLUMP

CNTR. OF ROAD

REALIGNED

A

B C

M5 ROAD EXCAVATION

A

B

CB.2

B.2

PREPARED BACKFILL BASE

DRAIN OUTLET, SEE D-6

TOP OF CUT SLOPE

NOTES

1. THE CENTERLINE OF THE REALIGNED

ROAD IS MOVER 10' NORTH (INTO

THE SLOPE) AT STATION 1284.18 AND

APPROXIMATELY 10' ON TO STATION

1380.00. THE OFFSET TAPERS TO THE

ORIGINAL ALIGNMENT AT 1125.40

WEST AND 1475.44 EAST.

2. ANY CUT SLOPE ABOVE THE

FINISHED ROAD LEVEL SHALL BE 1:1

ALONG THE RE-ALIGNMENT.

3. THE ROAD OUTSLOPE IS 1-2% AT

STATIONS 1187.15 AND 1383.48, AND

2-3% AT STATION 1285.18.

4. THE RECONSTRUCTED ROADBED

TEMPLATE SHALL HAVE A MINIMUM

WIDTH OF 21' WITH A ROAD SURFACE

(GRAVEL) OF 16'. THE INSIDE EDGE

OF THE GRAVEL SURFACE SHALL BE

NO LESS THAN 2' FROM THE OUTER

FACE OF THE RIPRAP.

5. DETAILS RELATED TO THE

CONSTRUCTED BACKFILL BASE ARE

NOTED ON SHEET D-5.

6. THE EXCAVATED BACKWALL

BETWEEN STATIONS 1187 AND 1383

SHALL BE NO STEEPER THAN 1:1.5.

THE END WALL AT STATION SHALL BE

NO STEEPER THAN 1:1.5. IN ANY

EVENT, THE CONTRACTOR SHALL

TAKE ALL APPROPRIATE

PRECAUTIONS TO INSURE THE

INTEGRITY AND SAFETY OF THE

EXCAVATION DURING

CONSTRUCTION.

7. THE LOCATIONS OF THE DRAIN

OUTLETS SHOWN WILL BE

DETERMINED BY THE FINAL

PLACEMENT OF THE BACKWALL

DRAINAGE SYSTEM

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DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/2 0/2

4 0 6:

G

EO

RG

EB

UT

LE

R

E:

\M

NF

\M

5_

SL

ID

E-

SL

UM

P\

DW

GS

_M

AP

S\

M5

SL

ID

E_

F1 -R

5.D W

G;

(R05)

PACIFIC SOUTHWEST

M5 SLIDE REPAIR 23-1

MENDOCINO

NATIONAL FOREST

GRINDSTONE RANGER

DISTRICT

RECONSTRUCTION

SECTIONS & DETAILS

3/20/24

G BUTLER

G BUTLER

F. RICO

D-5

20' SOIL NAILS

PRE-SLUMO SURFACE

SECTION B

SECTION B.2

CONSTRUCTION NOTES:

1. THE AGGREGATE SURFACE ON THE DISTURBED ROAD IS

NOT CONSIDERED SEPARATELY SALVABLE. ALL SUITABLE

MATERIAL EXCAVATED FROM THE SITE SHALL BE

STOCKPILED AT DESIGNATED LOCATIONS. STOCKPILED

MATERIAL SHALL BE PROTECTED FROM EROSION AND

CONTAMINATION. UNSUITABLE SHALL BE PLACED AT

LOCATIONS DESIGNATED BY THE CONTRACTING OFFICER.

2. THE CONTRACTING OFFICER SHALL INSPECT AND APPROVE

THE STRUCTURE BASE PRIOR TO PLACEMENT OF THE

GEOGRID.

3. THE CONTRACTOR SHALL ENSURE THAT THE EXCAVATION

IS MAINTAINED IN A SAFE WORKING CONDITION AT ALL

TIMES.

4. THE GEOGRID AND GEOCOMPOSITE MATERIAL SHALL BE

PLACED AND ALIGNED IN ACCORDANCE WITH THE

SPECIFICATIONS AND MANUFACTURES

RECOMMENDATIONS, THE CONTRACTOR SHALL ENSURE

THAT THE GEOTEXTILE MATERIALS ARE PROTECTED FROM

DAMAGE DURING STORAGE, HANDLING, PLACEMENT, AND

BACKFILL OPERATIONS.

5. THE BACKFILL SHALL BE PLACED IN LIFTS NO DEEPER THAN

12 INCHES WHEN COMPACTED. FOR THE PURPOSES OF

DENSITY TESTING, LAYERS SHALL BE NO GREATER THAN 24

INCHES DEEP.

6. THE GEOGRID SHALL BE FASTENED TO THE BASE LEVEL WITH 20'

SOIL NAILS AS SHOWN ON THE DRAWINGS.

MATERIAL NOTES:

1. GEO-TEXTILES SHALL CLASS 2, TYPE C.

2. GEOGRID SHALL BE TYPE IV.

3. GEOCOMPOSITE MATERIAL SHALL CONFORM WITH THE

REQUIREMENTS IN TABLE 714-3, TYPE 1 SHEET DRAIN.

4. REQUIREMENTS FOR COMPONENTS OF THE BACK DRAIN

PIPING SYSTEM ARE NOTED ON SHEET D-6

SEE SHEET D-3

PRE-SLUMP SURFACE

20' SOIL NAILS

GEOGRID

CLASS 3 RIPRAP

CLASS 3 RIPRAP MIN. 12' DEEP

GEOCOMPOSITE

GEOGRID

SEE DETAIL D6-C

36"

36"

SOIL NAIL PLACEMENT

36"36" 18"

EDGE OF GEOGRID

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DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/2 0/2

4 0 6:

G

EO

RG

EB

UT

LE

R

E:

\M

NF

\M

5_

SL

ID

E-

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UM

P\

DW

GS

_M

AP

S\

M5

SL

ID

E_

F1 -R

5.D W

G;

(R05)

PACIFIC SOUTHWEST

M5 SLIDE REPAIR 23-1

MENDOCINO

NATIONAL FOREST

GRINDSTONE RANGER

DISTRICT

DRAIN SYSTEM

3/22/24

G BUTLER

G BUTLER

F. RICO

D-6

LAYOUT OF DRAINAGE SYSTEM

DETAIL D6-B

DETAIL D6-A

DETAIL D6-C

GEO-COMPOSITE

NON-WOVEN GEO-TEX8" - 16GA GALV. CMP 6" DOUBLE WALL HDPE DRAIN PIPESCREENED END CAP

5' MIN.12" MAX.

DETAIL D6-C

6" HDPE DOUBLE-WALL DRAIN PIPE

6" HDPE PERFORATED DRAIN PIPE

DETAIL D6-A

10" MIN.

SEAL. SEE NOTE 5

BENTONITE SEAL. SEE NOTE 3

WASHED DRAIN ROCK

NOTES:

1. HDPE DRAINAGE PIPE MAY BE CONNECTED BY,

THERMOFUSE WELDING OR WITH

MECHANICAL (BELL & SPIGOT) FITTINGS. PIPE

AND FITTINGS SHALL CONFORM TO AASHTO

M253 AND ASTM F2648 & D3212. ANY METAL

COMPONENTS SHALL BE STAINLESS STEEL.

2. HORIZONTAL DRAIN PIPE SHALL BE PLACED

AT 1 - 2% SLOPE.

3. THE BENTONITE SEALS SHALL BE PLACED AT

THE TRANSITION FROM PERFERATED TO

SOLID PIPE AND BE NO MORE THAN 12" INSIDE

THE EDGE OF THE GEO-COMPOSITE SHEET.

4. THE DRAIN ROCK IN THE DRAINAGE SYSTEM

SHALL BE COMPLETELY ENCASED IN

NON-WOVEN GEO-TEX AS SHOWN IN DETAIL

D6-C.

5. THERE ARE SEVERAL METHODS TO CREATE

AN EFFECTIVE SEAL BETWEEN THE HDPE PIPE

AND THE CMP. THE CONTRACTOR SHALL

SUBMIT FOR GOVERNMENT APPROVAL A

SEALING SYSTEM DESIGNED TO FORM A

LASTING SEAL BETWEEN THE TWO PIPES.

DETAIL D6-B

DRAIN SECTION

TOP OF EXCAVATION

GEOCOMPOSITE

SOIL NAILS (120)

TWO ROWS, 60 NAILS EACH ROW

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