Bid Plans.pdf

STREAM MAINTENANCE BY CONTRACTORS

CITY PROJECT NO.: SD202523

CITY OF

COMMUNITY DEVELOPMENT DEPARTMENT-ENGINEERING DIVISION

A L I F O R N I AC

BE

NJAMIN L.

No. 68813

C I LIV

STATE OF

AINROFILAC

RE

GI

ST

ER

ED

PROF

RE

EN

IG

NE

LANOISSE

SHICK

(707) 528-4848

SANTA ROSA, CA 95405

2200 RANGE AVENUE, STE 201

CONSULTING CIVIL ENGINEERS

Schaaf Wheeler

NONE

STAGING/STOCKPILE AREA

EXISTING FENCE

XX

EXISTING TREES TO REMAIN

1. CONTRACTOR SHALL PROVIDE ALL BARRIERS AND SIGNS, TO BE APPROVED BY THE CITY, TO

CLOSE OFF PUBLIC ACCESS TO EACH SITE DURING CONSTRUCTION. THE EXACT LOCATION

OF SITE CLOSURE SHALL BE COORDINATED WITH THE CITY PRIOR TO BEGINNING

CONSTRUCTION.

2. IF THE CONTRACTOR PLANS TO CLOSE TRAFFIC LANES FOR ANY PERIOD OF TIME, OR

DISRUPT THE FLOW OF TRAFFIC, THE CONTRACTOR SHALL SUBMIT A TRAFFIC CONTROL

PLAN TO THE CITY ENGINEER FOR APPROVAL PRIOR TO BEGINNING WORK. THE PLAN SHALL

BE SIGNED BY A LICENSED CIVIL OR TRAFFIC ENGINEER WHEN IT INVOLVES AN ARTERIAL

STREET. CONTRACTOR SHALL PROVIDE ALL NECESSARY TRAFFIC CONTROL IN ACCORDANCE

WITH THE LATEST EDITION OF THE "CALIFORNIA MANUAL ON UNIFORM TRAFFIC CONTROL

DEVICES". A MINIMUM OF OF ONE TRAFFIC LANE (10' MIN) SHALL BE OPEN TO VEHICULAR

TRAFFIC DURING ALL HOURS, WEEKENDS, AND HOLIDAYS. STREET DETOURS SHALL ONLY

TAKE PLACE UPON CITY APPROVAL.

3. ALL TRAFFIC CONTROL DEVICES SHALL BE FABRICATED AND INSTALLED IN ACCORDANCE

WITH PART 6 AND PART 9 OF THE LATEST EDITION OF THE "CALIFORNIA MANUAL ON UNIFORM

TRAFFIC CONTROL DEVICES".

4. ALL CONES USED FOR LANE CLOSURE AFTER NIGHTFALL SHALL BE FITTED WITH

RETROREFLECTIVE BANDS (OR SLEEVES).

5. ALL ADVANCED WARNING SIGN INSTALLATIONS SHALL BE EQUIPPED WITH FLAGS FOR

DAYTIME CLOSURES. FLASHING BEACONS SHALL BE PLACED AT THE LOCATIONS INDICATED

FOR NIGHTTIME CLOSURES.

6. PERMANENT SIGNS OR EXISTING PAVEMENT MARKINGS THAT CONFLICT WITH THE TRAFFIC

CONTROL PLAN SHALL BE COVERED, OBLITERATED OR REMOVED AS DIRECTED BY THE

ENGINEER, AND RESTORED TO THEIR ORIGINAL CONDITION UPON COMPLETION OF THE

WORK.

7. DURING ALL CONSTRUCTION PERIODS, THE CONTRACTOR SHALL HAVE AT THE JOBSITE ALL

NECESSARY TRAFFIC CONTROL DEVICES (APPROPRIATE SIGN, LIGHTED ARROW DISPLAY,

CHANNELIZING DEVICES, ETC.) NEEDED TO IMPLEMENT THE APPROVED TRAFFIC CONTROL

PLAN

8. CONSTRUCTION SHALL BE SEQUENCED TO PROVIDE THE LEAST POSSIBLE ADVERSE EFFECT

TO RESIDENCES AND BUSINESS.

9. CONSTRUCTION MATERIALS SHALL BE KEPT OFF SIDEWALKS AND CONSOLIDATED IN AREAS

WITHIN THE CITY RIGHT-OF-WAY UNLESS OTHERWISE APPROVED BY THE CITY.

10.CONTRACTOR SHALL COORDINATE DETOUR ROUTES WITH THE CITY. CONTRACTOR SHALL

REFER TO THE APPENDIX IN THE SPECIFICATIONS.

SHEET NO. WHERE DETAIL OR SECTION IS DRAWN

A

PROPERTY LINE

LEGEND

EXISTING STORM DRAIN

NEW ROCK RIP RAP

AND LEGEND

1. NO CHANGE TO THE PROJECT IMPROVEMENT PLANS SHALL BE PERMITTED WITHOUT PRIOR APPROVAL BY THE CITY. CONTRACTOR AGREES TO ASSUME SOLE AND COMPLETE RESPONSIBILITY FOR JOB SITE CONDITIONS DURING THE CONSTRUCTION OF THIS PROJECT, INCLUDING SAFETY OF ALL PERSONS AND PROPERTY; THAT THIS REQUIREMENT SHALL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS; AND THAT THE CONTRACTOR SHALL DEFEND, INDEMNIFY AND HOLD THE CITY AND ENGINEER HARMLESS FROM ANY AND ALL LIABILITY, REAL OR ALLEGED, IN CONNECTION WITH THE PERFORMANCE OF WORK ON THIS PROJECT, EXCEPT TO THE EXTENT ARISING FROM THE NEGLIGENCE OF

THE CITY OR ENGINEER.

2. CONTRACTOR SHALL PROVIDE ALL LIGHTS, SIGNS, BARRICADES, FLAG MEN, CONES OR OTHER DEVICES NECESSARY TO PROVIDE FOR PUBLIC SAFETY IN ACCORDANCE WITH THE

SPECIFICATIONS. SEE ALSO TRAFFIC CONTROL NOTES.

3. CONTRACTOR SHALL REPLACE, AT HIS EXPENSE, ALL TREES, SHRUBS, LAWNS, FENCES, IRRIGATION SYSTEMS AND IMPROVEMENTS WHICH ARE TO REMAIN INTACT BUT HAVE BEEN REMOVED OR DAMAGED DURING CONSTRUCTION. CONTRACTOR SHALL NOT REMOVE OR DAMAGE IMPROVEMENTS LOCATED WITHIN CITY PROPERTY WITHOUT WRITTEN PERMISSION FROM THE CITY; OR FROM PRIVATE PROPERTY WITHOUT WRITTEN PERMISSION FROM THE PROPERTY OWNER.

4. TREES, SHRUBS, AND ROOTS OUTSIDE OF THE DEFINED EXCAVATION LIMITS SHALL NOT BE TRIMMED OR PRUNED WITHOUT THE APPROVAL OF THE CITY.

5. CLEARING AND GRUBBING SHALL BE PERFORMED WITHIN THE ENTIRE GRADING LIMITS AREA SHOWN ON THE PLANS. THE STRIPPED VEGETATION, SOIL, DEBRIS, TRASH, ETC. SHALL BE REMOVED FROM THE HOLMES STREET SITE AND DISPOSED OF BY THE CONTRACTOR AT THE CONTRACTOR'S EXPENSE. CONTRACTOR SHALL PLACE ON-SITE MATERIAL FREE OF VEGETATION WITHIN ALL VOIDS OF RIP RAP AND A LAYER ON TOP OF THE RIP RAP PER DETAIL 3 ON SHEET D1. ALL UNUSED EXCAVATED CLEAN GRAVEL MATERIAL SHALL BE OFF-HAULED TO THE ZONE 7 MATERIAL STOCKPILING YARD LOCATED AT 2633/2655 EL CHARRO ROAD PLEASANTON (SEE MAP ON SHEET T1) AND DISPOSED OF BY THE CONTRACTOR.

OFF-HAUL MATERIAL SHALL BE COMBINED INTO ONE DISCRETE PILE TO ZONE 7'S SATISFACTION BEFORE ACCEPTANCE OF THE PROJECT.

6. CONTRACTOR SHALL REMOVE AND DISPOSE OF ALL EXCESS EXCAVATED CLEAN GRAVEL MATERIAL AT THE ZONE 7 MATERIAL STOCKPILING YARD OR A CERTIFIED DUMP SITE UNLESS OTHERWISE NOTED ON THE PLANS OR SPECIFICATIONS. ALL TESTING REQUIRED FOR LEGAL DISPOSAL SHALL BE CONDUCTED BY THE CONTRACTOR AT THE CONTRACTOR'S EXPENSE.

THE CONTRACTOR IS RESPONSIBLE TO DISPOSE OF ALL MATERIALS IN A PROPER AND LEGAL MANNER. IF THE MATERIAL IS TESTED AND FOUND TO BE HAZARDOUS, THE CONTRACTOR'S PRICE AND CONTRACT TIME SHALL BE ADJUSTED. MATERIAL TESTING PREVIOUSLY COMPLETED BY THE CITY IS PROVIDED AS AN APPENDIX TO THE SPECIFICATIONS.

REFERENCE SPECIFICATION SECTION 31 30 00 -EARTHWORK.

7. ALL PERMANENT IMPROVEMENTS REMOVED OR DAMAGED BY THE CONTRACTOR, THAT ARE NOT SPECIFICALLY SHOWN TO BE REMOVED, SHALL BE RESTORED TO THEIR ORIGINAL LOCATION AND CONDITION BY THE CONTRACTOR USING NEW MATERIALS AS DIRECTED BY THE ENGINEER

8. OVERNIGHT PARKING OF CONSTRUCTION EQUIPMENT AND VEHICLES IS PERMITTED WITHIN STAGING AREA INDICATED ON PLAN SHEETS. ALL EQUIPMENT SHALL BE SURROUNDED BY REFLECTIVE DELINEATORS AT ALL TIMES. SEDIMENT MAY BE TEMPORARILY STAGED NEAR THE CREEK OR CHANNEL MAINTENANCE SITE A MINIMUM DISTANCE OF 20-FEET FROM THE CREEK OR CHANNEL TO ALLOW AN APPROPRIATE DRYING TIME PRIOR TO TRANSPORT. ALL MATERIALS STOCKPILED ON SITE SHALL BE WITHIN THE LIMITS OF DISTURBANCE AS SHOWN ON THE PLANS, AND SHALL BE CONTAINED WITH EROSION CONTROL BMPs. PARKING EQUIPMENT AND STORING MATERIALS IN OTHER LOCATIONS, INCLUDING IN THE STREET RIGHT-OF-WAY SHALL NOT BE PERMITTED, EXCEPT AT LOCATION(S) APPROVED BY THE CITY TRAFFIC ENGINEER.

9. THE USE OF TRACKED EQUIPMENT ON TRAILS AND ROADWAYS IS AT THE DISCRETION OF THE CONTRACTOR. THE CONTRACTOR SHALL REPAIR AND REPLACE ANY DAMAGE TO TRAILS AND ROADWAYS AT COMPLETION OF CONSTRUCTION. ANY SETTLEMENT, CRACKING, OR DAMAGE TO EXISTING TRAILS (DIRT, AC, CONCRETE, ETC.) DURING CONSTRUCTION SHALL BE REPAIRED BY THE CONTRACTOR. AC TRAIL REPAIR SHALL BE PERFORMED BY REPLACING THE FULL WIDTH OF THE AC TRAIL FOR THE LENGTH OF THE DAMAGED TRAIL SECTION.

TRAILS SHALL BE REPAIRED AND RESTORED PER NOTE 2 ON SHEET C1.

10.MUD AND CONSTRUCTION DEBRIS ON STREETS, SIDEWALKS OR BICYCLE PATHS SHALL BE CLEANED OFF IMMEDIATELY.

11. ALL WORK BELOW THE TOP OF BANK SHOWN ON PLANS SHALL BE COMPLETED BEFORE OCTOBER 15, 2025. ALL OTHER WORK SHALL BE COMPLETED BY OCTOBER 31, 2025.

12.CONTRACTOR SHALL PERFORM HIS CONSTRUCTION AND OPERATION IN A MANNER WHICH WILL NOT ALLOW HARMFUL POLLUTANTS TO ENTER THE CREEK. TO ENSURE COMPLIANCE, THE CONTRACTOR SHALL IMPLEMENT THE APPROPRIATE BEST MANAGEMENT PRACTICE (BMP) AS OUTLINED IN THE "CALIFORNIA STORMWATER BMP HANDBOOK" FOR CONSTRUCTION (www.cabmphandbooks.com) AND THE CITY OF LIVERMORE'S "STREAM MAINTENANCE PROGRAM MANUAL (SMP)". INCLUDING, BUT NOT LIMITED TO:

a. CREEK FLOW SHALL BE DIVERTED AROUND OR THROUGH EXCAVATION ACTIVITIES PER SECTION NS-5, CLEAR WATER DIVERSION

b. STOCKPILED MATERIALS SHALL BE PROTECTED PER SECTION WM-3, STOCKPILE MANAGEMENT

c. HANDLING OF ALL SHRUBS, TREES, AND MATERIALS TO BE DISPOSED OF SHALL FOLLOW SECTION WM-5 SOLID WASTE MANAGEMENT

d. CONTRACTOR SHALL STABILIZE THE ENTRANCE AND EXIT OF SITE BY FOLLOWING STANDARDS INCLUDED IN TC-1 STABILIZED CONSTRUCTION ENTRANCE/EXIT.

e. DISTURBED AREAS INCLUDING THE CHANNEL BANK AT AND ABOVE THE FLOOD BENCH SHALL BE RESTORED WITH HYDROSEED SLURRY MIX PER EC-4 HYDROSEEDING. CHANNEL

BANK BELOW FLOOD BENCH AND CHANNEL BOTTOM DO NOT NEED TO BE HYDROSEEDED.

f. ALL DISTURBED SLOPES SHALL BE REINFORCED WITH STABILIZING FABRIC PER EC-7 GEOTEXTILES AND MATS.

g. STREAMBANK STABILIZATION AND SEDIMENT CONTROL SHALL FOLLOW SECTION EC-12, STREAMBANK STABILIZATION.

13. ALL BMP MATERIALS SHALL ADHERE TO THE REQUIREMENTS AND SPECIFICATIONS WITHIN THE LATEST CALIFORNIA STORMWATER BMP HANDBOOK.

14. THE LOCATION OF EXISTING UTILITIES SHOWN ARE APPROXIMATE AND BASED ON UTILITY MAPS PROVIDED BY THE CITY AND ASSOCIATED UTILITY COMPANIES. IT IS THE CONTRACTOR'S RESPONSIBILITY TO VERIFY THE LOCATION OF ALL EXISTING UTILITIES WITH THE APPROPRIATE UTILITY AGENCIES PRIOR TO THE COMMENCEMENT OF CONSTRUCTION.

CONTRACTOR SHALL NOTIFY ALL PUBLIC AND PRIVATE UTILITY OWNERS 48 HOURS PRIOR TO COMMENCEMENT OF WORK ADJACENT TO THE UTILITY. CONTACT UNDERGROUND

SERVICE ALERT (USA) AT 1-800-227-2600.

15. THE LIVERMORE STREAM MAINTENANCE PROGRAM (SMP) MANUAL WILL BE PROVIDED TO THE CONTRACTOR AS AN APPENDIX IN THE SPECIFICATIONS. ADDITIONAL REGULATORY PERMITS WILL BE PROVIDED TO THE CONTRACTOR PRIOR TO COMMENCING WORK. THE CONTRACTOR SHALL ADHERE TO ALL REQUIREMENTS WITHIN THE SMP MANUAL AND

REGULATORY PERMITS IN ADDITION TO THE REQUIREMENTS HEREIN.

16. THE CITY HAS REQUESTED AN ENCROACHMENT PERMIT FROM ZONE 7 FOR COMPLETION OF THE WORK. THE CITY WILL PROVIDE A COPY OF THE PERMIT TO THE CONTRACTOR PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL ADHERE TO ALL ENCROACHMENT PERMIT REQUIREMENTS.

17.CONSTRUCTION SHALL BE SEQUENCED TO PROVIDE THE LEAST POSSIBLE EFFECT ON NATURAL RESOURCES.

NOTES, ABBREVIATIONS,

A

LEGEND

THE ARROYO MOCHO, AT HOLMES STREET, IS A WATER SUPPLY RESOURCE MANAGED BY

ZONE 7 WATER AGENCY (ZONE 7). CONTINUOUS FLOWS IN THE ARROYO MOCHO (15 TO 18

CUBIC FEET PER SECOND (CFS)) MAY OCCUR THROUGHOUT THE 2025 SUMMER MONTHS FOR

GROUNDWATER RECHARGE PURPOSES. HOWEVER, ZONE 7 WILL PAUSE THE

GROUNDWATER RECHARGE RELEASES INTO THE ARROYO MOCHO FROM SEPTEMBER 5, 2025

TO OCTOBER 3, 2025 TO ACCOMMODATE THE CITY WORK AT THE HOLMES STREET LOCATION,

REFERENCE SPECIFICATION SECTION 31 11 00. CONTRACTOR IS RESPONSIBLE FOR

MONITORING THE WEATHER, AND PROTECTING THE SITE FROM CHANNEL FLOWS AND

EROSION. ALL WORK WITHIN THE ARROYO MOCHO CHANNEL SHALL BE COMPLETED WITHIN

THE TIME PERIOD IDENTICAL TO THE ZONE 7 RECHARGE PAUSING PERIOD.

ARROYO MOCHO BYPASS NOTES

TRAFFIC CONTROL NOTES

ALL COORDINATES PROVIDED ARE STATE PLANE COORDINATES BASED ON THE CALIFORNIA SYSTEM OF 1983, ZONE 3, EPOCH DATE 1 1998.50

THE CALCULATED BEARING OF NORTH 78°02'22" WEST TAKEN BETWEEN GPS CONTROL POINT "COLINAS A-445" AND GPS CONTROL POINT "GPS 95" AS SHOWN ON THAT CERTAIN RECORD OF SURVEY NO. 1827, FILED FOR RECORD ON APRIL 25, 2003, IN BOOK 28 OF RECORDS OF SURVEY AT PAGES 1 THROUGH 4, OFFICIAL RECORDS OF THE COUNTY OF ALAMEDA WAS TAKEN

AS THE BASIS OF BEARING FOR THIS SURVEY

BASIS OF BEARINGS

BENCHMARK

NATIONAL GEODETIC SURVEY DISK DESIGNATED "F 1259" BEING A 3" BRASS DISK ON TOP OF THE SOUTHWEST, 2' DIAMETER OLD CONCRETE FOOTING FOR A STEEL PG&E TRANSMISSION TOWER, 40' +/- SOUTH OF THE SOUTH EDGE OF PAVEMENT OF SOUTH FRONT ROAD 35' +/- NORTH OF A NEW TRANSMISSION LINE TOWER. THE DISK IS STAMPED "VERTICAL CONTROL MARK

F 1259 1974 THE DIRECTOR NATIONAL GEODETIC SURVEY"

ELEVATION 527.76 FEET, NAVD 1988 DATUM

EXISTING ROCK RIP RAP

EXISTING WATER MAINW

EXISTING SANITARY SEWERSS

ABBREVIATIONS

(E) EXISTING

(N) NEW

AC ASPHALTIC CONCRETE

APPROX APPROXIMATE

BMP BEST MANAGEMENT PRACTICES

CAMUTCD

CALIFORNIA MANUAL ON UNIFORM

TRAFFIC CONTROL DEVICES

CASQA

CALIFORNIA STORM WATER QUALITY

ASSOCIATION

CFS CUBIC FEET PER SECOND

COMP COMPACTION

EG EXISTING GRADE

ELEV ELEVATION

ESA ENVIRONMENTALLY SENSITIVE AREA

FEMA

FEDERAL EMERGENCY MANAGEMENT

AGENCY

GPS GLOBAL POSITIONING SYSTEM

H, HOR. HORIZONTAL

LF LINEAR FEET

MAX MAXIMUM

MIN MINIMUM

NTS NOT TO SCALE

OC ON CENTER

RCP REINFORCED CONCRETE PIPE

SMP STREAM MAINTENANCE PERMIT

STA STATION

TYP TYPICAL

USA UNDERGROUND SERVICE ALERT

V, VER. VERTICAL

CONSTRUCTION FENCE

GENERAL NOTES

DETAIL OR SECTION DESIGNATION

EXISTING GAS MAING

PROPOSED CONTOUR500

EXISTING OVERHEAD ELECTRIC// OH

EXISTING UNDERGROUND ELECTRICE

REGRADE AREA &

REMOVE SEDIMENT

EXISTING EDGE OF PAVEMENT

THE CITY HAS A TRASH CAPTURE PROJECT AND A SEWER IMPROVEMENT PROJECT WITHIN

CLOSE PROXIMITY TO THE PROPOSED WORK. THE CONTRACTOR SHALL COORDINATE WITH

THE CITY AND THE CITY'S CONTRACTORS TO MINIMIZE DISTURBANCE AND COORDINATE

TRAFFIC CONTROL.

COORDINATE WITH OTHER CITY PROJECTS

+ TEMPORARY BENCHMARK

EXISTING STORM MANHOLEMH

T2

RESTORE BIKE/PEDESTRIAN PATH

TRAIL CLOSURE BARRIER

AND SIGN

NEW TOE OF RIP RAP SLOPE

LOCATION OF

PHOTOGRAPHER

T2

ZONE 7 STOCKPILE LOCATION -

STREET VIEW

SCALE: NTS

© 2025 Microsoft Corporation © 2025 Maxar ©CNES (2025) Distribution Airbus DS

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TRAIL, PROTECT IN PLACE

EXCAVATE, OFF-HAUL, AND DISPOSE

OF (E) SEDIMENT AND SOIL WITHIN

PROPOSED LOCATION OF RIP RAP

INSTALL (N) 12 TON RIP RAP,

SEE SHEET C2

TEMPORARY STOCKPILE

AND STAGING AREA

CONSTRUCTION FENCE

SEE DETAIL

CONSTRUCTION FENCE

SEE DETAIL

REMOVE (E) SEDIMENT,

SEE SHEET C3

(E) PEDESTRIAN/BIKE TRAIL TO BE REPAIRED

AND RESTORED AFTER CONSTRUCTION

SEE NOTE 2

(E) 60" STORM DRAIN,

PROTECT IN PLACE

(N) TEMPORARY TRAIL CLOSED

BARRIER AND SIGN, NOTE 4

INSTALL PEDESTRIAN DETOUR ROUTE

SEE NOTE 1

ARROYO MOCHO

AARON STREET

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R E

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#1

#2

#3

#5

#7

#6

(N) TEMPORARY TRAIL CLOSED

BARRIER AND SIGN, NOTE 4

REMOVE (E) SAKRETE

(E) REVETMENT LOGS AND CABLES,

TO BE REMOVED

INSTALL PEDESTRIAN DETOUR ROUTE

SEE NOTE 1

(N) TEMPORARY TRAIL CLOSED

BARRIER AND SIGN, NOTE 4

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(N) TEMPORARY TRAIL CLOSED

BARRIER AND SIGN, NOTE 4

(E) 14 TON RIP RAP,

TO REMAIN

(E) TREES,

PROTECT IN PLACE

NOTE 3

(E) 36" WATER MAIN,

PROTECT IN PLACE

(E) 12" WATER MAIN,

PROTECT IN PLACE

(E) 8" WATER MAIN,

PROTECT IN PLACE

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TEMPORARY STOCKPILE

AND STAGING AREA

#4

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STREAM MAINTENANCE BY CONTRACTORS

CITY PROJECT NO.: SD202523

CITY OF

COMMUNITY DEVELOPMENT DEPARTMENT-ENGINEERING DIVISION

A L I F O R N I AC

BE

NJAMIN L.

No. 68813

C I LIV

STATE OF

AINROFILAC

RE

GI

ST

ER

ED

PROF

RE

EN

IG

NE

LANOISSE

SHICK

(707) 528-4848

SANTA ROSA, CA 95405

2200 RANGE AVENUE, STE 201

CONSULTING CIVIL ENGINEERS

Schaaf Wheeler

NONE

SITE PLAN

C1

SCALE: 1" = 30'

PLAN

SCALE: 1 INCH = 30 FEET

TEMPORARY BENCHMARKS

NO DESCRIPTION NORTHING EASTING ELEVATION

1 MAG NAIL 2070626.87 6190891.49 473.37

2 MAG NAIL 2070597.21 6190974.09 474.47

3 MAG NAIL 2070430.38 6191186.81 477.31

4 HUB & MAG NAIL 2070431.93 6191363.11 477.12

5 MAG NAIL 2070384.01 6191492.99 477.69

6 MAG NAIL 2070351.99 6191585.92 480.09

7 MAG NAIL 2070315.28 6191672.91 480.73

NOTES:

1. CONTRACTOR SHALL IMPLEMENT A DETOUR ROUTE FOR THE PEDESTRIAN TRAIL. REFER TO THE

APPENDIX OF THE SPECIFICATIONS FOR ADDITIONAL INFORMATION.

2. EXISTING BIKE/PEDESTRIAN TRAIL SHALL BE USED AS A CONSTRUCTION ACCESS TO PERFORM IMPROVEMENTS AT THE BANK STABILIZATION SITE. UPON COMPLETION OF CONSTRUCTION AND AFTER BANK REPAIR WORK, CONTRACTOR SHALL REPAIR AND RESTORE PATHWAY TO PRE-CONSTRUCTION CONDITIONS. PATH SHALL BE RESTORED TO THE PAVEMENT THICKNESS OF THE ORIGINAL CONDITION (CLASS 1A PAVED SHARED USE PATH), WHICH SHALL BE 4" HMA WITH 6" AB. DAMAGED CONCRETE PATHWAY SHALL BE REPLACED PER CITY STANDARD DETAIL ST-31 SIDEWALK REPAIR. RESTORATION WORK OF PAVEMENT SHALL EXTEND 15' BEYOND THE RIP RAP INSTALLATION. COMPACT TO NEW

ASPHALT TO 95 PERCENT RELATIVE COMPACTION AS SPECIFIED IN SECTION 321000.

3. CONTRACTOR SHALL INSTALL ORANGE CONSTRUCTION FENCING AROUND (E) TREES TO PROTECT IN

PLACE. REFER TO SPECIFICATION SECTION 329100 FOR ADDITIONAL INFORMATION.

4. TRAIL CLOSURE BARRIERS SHALL EXTEND THE FULL WIDTH OF THE PEDESTRIAN TRAIL AND ADJACENT

SHOULDER AREAS TO PREVENT PEDESTRIANS FROM ENTERING THE WORK SITE.

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(E) PEDESTRIAN/BIKE TRAIL,

TO BE REPAIRED AND RESTORED AFTER CONSTRUCTION

SEE NOTE 19

PROTECT (E) TREES IN PLACE

(E) FENCE

(E) UNDERGROUND

COMMUNICATIONS

(E) WATER MAIN

(E) OVERHEAD ELECTRIC

(E) UNDERGROUND ELECTRIC

(E) GAS MAIN

(E) 60" STORM DRAIN, PROTECT IN PLACE

(E) 18" STORM DRAIN

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15'-0"±

(N) TOE OF SLOPE

188'±

C 6K

ARROYO MOCHO

3'±

APPROXIMATE

PATHWAY WIDTH

11'-0"±

(E) 36" WATER MAIN

AC TRAIL

(N) TEMPORARY TRAIL CLOSED

BARRIER AND SIGN, TYP.

NOTE 11

SEDIMENT REMOVAL NOT SHOWN,

SEE SHEET C3

SEE PHOTO

SEE PHOTO

(E) FEMA FLOOD

ZONE BOUNDARY

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6LC

6N C 6M

C 5I

C

5HC

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REMOVE (E) SAKRETE,

SEE PHOTO 1

C2

(N) 12 TON RIP RAP,

SEE CROSS SECTIONS AND NOTE 7

REMOVE (E) REVETMENT LOGS

(N) TEMPORARY TRAIL CLOSED

BARRIER AND SIGN, TYP.

NOTE 11

SEE PHOTO

(E) TOE OF BANK

(N) CONSTRUCTION FENCE

SEE NOTE 5

SEE PHOTO

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EXCAVATE AND

REMOVE (E) SOIL AND

SEDIMENT AS

NECESSARY FOR RIP

RAP PLACEMENT

NOTE 7

(E) 14 TON RIP RAP,

TO REMAIN, SEE NOTE 7

TIE RIP RAP

INTO (E) BANK

STREAM MAINTENANCE BY CONTRACTORS

CITY PROJECT NO.: SD202523

CITY OF

COMMUNITY DEVELOPMENT DEPARTMENT-ENGINEERING DIVISION

A L I F O R N I AC

BE

NJAMIN L.

No. 68813

C I LIV

STATE OF

AINROFILAC

RE

GI

ST

ER

ED

PROF

RE

EN

IG

NE

LANOISSE

SHICK

(707) 528-4848

SANTA ROSA, CA 95405

2200 RANGE AVENUE, STE 201

CONSULTING CIVIL ENGINEERS

Schaaf Wheeler

NONE

SCALE: 1" = 20'

PLAN

SITE 91 - DOWNSTREAM HOLMES

STREET BRIDGE BANK STABILIZATION

ALONG ARROYO MOCHO

SCALE: 1 INCH = 20 FEET

C2

REMOVE & DISPOSE OF (E) SAKRETE

NOTES:

1. ALL WORK BELOW TOP OF BANK SHALL BE COMPLETED PRIOR TO OCTOBER 15, 2025.

2. ACCESS SITE VIA ON HOLMES STREET AND ALONG AN EXISTING ARROYO BIKE TRAIL.

3. STAGING AREA AND ACCESS PATH SHALL BE RESTORED TO THEIR ORIGINAL

CONDITION AT COMPLETION OF CONSTRUCTION. SEE NOTE 19.

4. BIODEGRADABLE EROSION CONTROL BLANKET SHALL BE INSTALLED ON THE

STOCKPILE AND STAGING AREAS, AND DISTURBED SLOPES AT THE COMPLETION OF

CONSTRUCTION; AVOID PLACEMENT IN LOW FLOW CHANNEL. HYDROSEEDING SHALL

BE PLACED ON ALL DISTURBED SOIL AND ON EXISTING AND NEW RIP RAP AS

DETAILED HEREIN.

5. CONSTRUCTION FENCE SHALL BE INSTALLED PRIOR TO PLACEMENT OF ANY

EQUIPMENT OR MATERIALS ON SITE. WORKSITE SHALL BE COMPLETELY ENCLOSED

BY SUCH FENCING, SEE DETAIL .

6. SUBGRADE SHOULD BE COMPACTED FIRMLY TO PREVENT SLUMPING OR

UNDERCUTTING PRIOR TO INSTALLATION OF GEOTEXTILE LINING.

7. CONTRACTOR SHALL PLACE AND COMPACT EXCAVATED ON-SITE MATERIAL WITHIN

ALL VOIDS OF RIP RAP IT IS PLACED. PLACE 6" OF EXCAVATED ON-SITE MATERIAL ON

TOP OF EXISTING AND NEW RIP RAP AS SHOWN ON DETAIL 3/D1. ALL UNUSED

MATERIAL SHALL BE OFF-HAULED AND DISPOSED OF BY THE CONTRACTOR. ALL

MATERIAL SHALL BE DRAINED PRIOR TO OFF-HAUL.

8. CONTRACTOR SHALL ATTEND STREAM MAINTENANCE PROGRAM (SMP)

ENVIRONMENTAL TRAINING PRIOR TO BEGINNING WORK.

9. CONTRACTOR SHALL IMPLEMENT ALL SMP BMPs AND CONSERVATION MEASURE IN

COMPLIANCE WITH RESOURCE REGULATORY PERMITS.

10. EXTENT OF GRADING AND SEDIMENT REMOVAL IS APPROXIMATE. VERIFY THE EXTENT

WITH THE CITY.

11. CONTRACTOR SHALL INSTALL AND MAINTAIN A TEMPORARY 6-FOOT CHAIN LINK

FENCE, OR SIMILAR BARRIER APPROVED BY THE CITY, AT SITE ENTRANCES ALONG

TRAIL PATH TO CLOSE OFF PUBLIC SITE ACCESS AND POST "TRAIL CLOSED FOR

REPAIRS" SIGNS. REFERENCE THE PEDESTRIAN TRAIL DETOUR ROUTE INCLUDED AS

AN APPENDIX TO THE SPECIFICATIONS.

12. NO WORK SHALL COMMENCE PRIOR TO THE COMPLETION OF THE QUALIFIED

BIOLOGIST SURVEY TO BE COMPLETED BY THE CITY.

13. CONTRACTOR SHALL REMOVE AND DISPOSE OF TRASH, SOIL, SILT, MUD, EXCESSIVE

ORGANIC MATERIAL AND DEBRIS.

14. AREA TO BE PROTECTED BY RIP RAP SHOULD BE CLEARED OF VEGETATION, BRUSH,

AND UNSUITABLE SOILS.

15. CARE SHOULD BE TAKEN NOT TO TEAR OR PUNCTURE GEOTEXTILE. GEOTEXTILE

DAMAGED DURING INSTALLATION MUST BE REMOVED AND REPLACED BEFORE RIP

RAP PLACEMENT.

16. THE CITY'S BIOLOGIST SHALL BE ON-SITE DURING ALL CONSTRUCTION ACTIVITIES.

17. WORK WITHIN THE ARROYO MOCHO MAY REQUIRE DEWATERING. GROUNDWATER

RECHARGE RELEASES INTO THE ARROYO MOCHO WILL BE TEMPORARILY STOPPED

TO ELIMINATE THE NEED FOR CHANNEL BYPASS/DIVERSION. REFERENCE SHEET T2

AND SPECIFICATION SECTION 311100.

18. CONTRACTOR SHALL MINIMIZE TRAFFIC AND EQUIPMENT LOADING ON PATHWAY TO

ENSURE PROTECTION OF PATHWAY AND STORM DRAIN PIPE. CONTRACTOR SHALL

ACCURATELY LOCATE EXISTING 60-INCH STORM DRAIN PIPE AND PROTECT IN PLACE

AT ALL TIMES DURING CONSTRUCTION. ROCK RIP RAP SHALL NOT BE PLACED WITHIN

3-FEET OF EXISTING STORM DRAIN PIPE.

19. EXISTING BIKE/PEDESTRIAN TRAIL SHALL BE USED AS A CONSTRUCTION ACCESS TO

PERFORM IMPROVEMENTS AT THE BANK STABILIZATION SITE. UPON COMPLETION OF

CONSTRUCTION AND AFTER BANK REPAIR WORK, CONTRACTOR SHALL REPAIR AND

RESTORE PATHWAY TO PRE-CONSTRUCTION CONDITIONS. PATH SHALL BE RESTORED

TO THE PAVEMENT THICKNESS OF THE ORIGINAL CONDITION (CLASS 1A PAVED

SHARED USE PATH), WHICH SHALL BE 4" HMA WITH 6" AB. RESTORATION WORK OF

PAVEMENT SHALL EXTEND 15' BEYOND THE RIP RAP INSTALLATION.

D1

REMOVE (E) REVETMENT LOGS

STABILIZE (E) BANK

W/ (N) 12 TON RIP RAP

STABILIZE (E) BANK

W/ (N) 12 TON RIP RAP

C2

NORTH BANK PHOTO STA 5+72

SCALE: NTS

C2

PHOTO OF EXISTING SAKRETE

TO BE REMOVED

SCALE: NTS

STABILIZE (E) BANK

W/ (N) 12 TON RIP RAP

(E) RIP RAP

TO REMAIN

C2

NORTH BANK PHOTO STA 6+47

SCALE: NTS

C2

NORTH BANK PHOTO STA 8+54

SCALE: NTS

STABILIZE (E) BANK

W/ (N) 12 TON RIP RAP

PROTECT (E) TREES

THROUGHOUT CONSTRUCTION

TIE RIP RAP

INTO (E) BANK

W

W

W

W

W

W

W

W

E

E

G

G

G

X X

W

W G

G

G

G

O H

O H

O H

O H

E

E

E

E

E

E

E

E

E

O H

O H

O H

O H

C O

M

C O

M

C O

M

C O

M

C O

M

C O

M

X

X

X

X

X

X

X

X

X

X

MH

MH

REMOVE (E) SEDIMENT

(N) TEMPORARY TRAIL CLOSED

BARRIER AND SIGN, TYP,

SEE NOTE 11

C 4B

C 4C

C 4E

C 4F

C 4A

(E) UNDERGROUND ELECTRIC

(E) 30" STORM DRAIN

(E) UNDERGROUND

COMMUNICATIONS

(E) OVERHEAD ELECTRIC

ARROYO MOCHO

162'±

(E) 18" STORM DRAIN

58'±

23'± W

W

W

W

W

(E) 12" STORM DRAIN

(E) 36" WATER MAIN

(E) 12" WATER MAIN

(E) 8" WATER MAIN

(E) 60" STORM DRAIN

C 4D

(N) CONSTRUCTION FENCE

NOTE 5

SEE PHOTO

SEE PHOTO

SEE PHOTO

H O

LM

E

S S

T R

E E

T

(N) TEMPORARY TRAIL CLOSED

BARRIER AND SIGN, TYP,

SEE NOTE 11

BANK STABILIZATION

MEASURES NOT SHOWN,

SEE SHEET C2

W

W

W

W

3+00

4+00

5+00

6+00

7+00

(E) GAS MAIN

C3

C3

C3

STREAM MAINTENANCE BY CONTRACTORS

CITY PROJECT NO.: SD202523

CITY OF

COMMUNITY DEVELOPMENT DEPARTMENT-ENGINEERING DIVISION

A L I F O R N I AC

BE

NJAMIN L.

No. 68813

C I LIV

STATE OF

AINROFILAC

RE

GI

ST

ER

ED

PROF

RE

EN

IG

NE

LANOISSE

SHICK

(707) 528-4848

SANTA ROSA, CA 95405

2200 RANGE AVENUE, STE 201

CONSULTING CIVIL ENGINEERS

Schaaf Wheeler

NONE

SCALE: 1" = 20'

PLAN

SITE YM-1a - HOLMES STREET

BRIDGE ANNUAL SEDIMENT

REMOVAL

SCALE: 1 INCH = 20 FEET

C3

NOTES:

1. ALL WORK BELOW TOP OF BANK SHALL BE COMPLETED PRIOR TO OCTOBER 15, 2025.

2. ACCESS SITE VIA ON HOLMES STREET AND ALONG AN EXISTING ARROYO BIKE TRAIL.

3. STAGING AREA AND ACCESS PATH SHALL BE RESTORED TO THEIR ORIGINAL CONDITION AT COMPLETION OF CONSTRUCTION.

4. BIODEGRADABLE EROSION CONTROL BLANKET SHALL BE INSTALLED ON THE STOCKPILE AND STAGING AREA, AND DISTURBED SLOPES AT THE COMPLETION OF CONSTRUCTION; AVOID PLACEMENT IN LOW FLOW CHANNEL. HYDROSEEDING SHALL BE PLACED ON ALL DISTURBED

SOIL AND ON EXISTING AND NEW RIP RAP AS DETAILED HEREIN.

5. CONSTRUCTION FENCE SHALL BE INSTALLED PRIOR TO PLACEMENT OF ANY EQUIPMENT OR MATERIALS ON SITE. WORKSITE SHALL BE

COMPLETELY ENCLOSED BY SUCH FENCING, SEE DETAIL .

6. SUBGRADE SHOULD BE COMPACTED FIRMLY TO PREVENT SLUMPING OR UNDERCUTTING PRIOR TO INSTALLATION OF GEOTEXTILE LINING.

7. CONTRACTOR SHALL EXCAVATE, OFF-HAUL, AND DISPOSE OF ALL SEDIMENT, DEBRIS AND VEGETATION AS DETAILED ON THE PLANS AND

SPECIFICATIONS.

8. CONTRACTOR SHALL ATTEND STREAM MAINTENANCE PROGRAM (SMP) ENVIRONMENTAL TRAINING PRIOR TO BEGINNING WORK.

9. CONTRACTOR SHALL IMPLEMENT ALL SMP BMPs AND CONSERVATION MEASURE IN COMPLIANCE WITH RESOURCE REGULATORY PERMITS.

10. EXTENT OF GRADING AND SEDIMENT REMOVAL IS APPROXIMATE. VERIFY THE EXTENT WITH THE CITY.

11. CONTRACTOR SHALL INSTALL AND MAINTAIN A TEMPORARY 6-FOOT CHAIN LINK FENCE, OR SIMILAR BARRIER APPROVED BY THE CITY, AT SITE ENTRANCES ALONG TRAIL PATH TO CLOSE OFF PUBLIC SITE ACCESS AND POST "TRAIL CLOSED FOR REPAIRS" SIGNS. REFERENCE THE PEDESTRIAN TRAIL DETOUR ROUTE INCLUDED AS AN APPENDIX TO THE SPECIFICATIONS. NO WORK SHALL COMMENCE PRIOR TO

THE COMPLETION OF THE QUALIFIED BIOLOGIST SURVEY TO BE COMPLETED BY THE CITY.

12. ALL EXCAVATED MATERIAL THAT IS NOT USED TO FILL THE VOIDS OF NEW RIP RAP SHALL BE OFF-HAULED AND DISPOSED OF BY THE

CONTRACTOR. ALL MATERIAL SHALL BE DRAINED PRIOR TO OFF-HAUL.

13. CONTRACTOR SHALL REMOVE AND DISPOSE OF TRASH, SOIL, SILT, MUD, EXCESSIVE ORGANIC MATERIAL AND DEBRIS.

14. THE CITY'S BIOLOGIST SHALL BE ON-SITE DURING ALL CONSTRUCTION ACTIVITIES.

15. WORK WITH THE ARROYO MOCHO MAY REQUIRE DEWATERING. GROUNDWATER RECHARGE RELEASES INTO THE ARROYO MOCHO WILL BE TEMPORARILY STOPPED TO ELIMINATE THE NEED FOR CHANNEL BYPASS/DIVERSION. REFERENCE SHEET T2 AND SPECIFICATION

SECTION 311100.

16. (E) GAS MAIN AND ELECTRICAL ARE ATTACHED TO THE DOWNSTREAM FACE OF THE THE HOLMES STREET BRIDGE. THE CONTRACTOR

SHALL PROTECT ALL EXISTING UTILITIES THROUGHOUT CONSTRUCTION.

17. THE CONTRACTOR SHALL PROTECT (E) BRIDGE PIERS, BRIDGE SOFFIT, AND CONCRETE/ASPHALT TRAILS THROUGHOUT CONSTRUCTION.

SEDIMENT

REMOVAL TABLE

QUANTITY UNIT

870 CY

D1

C3

REMOVE (E) SEDIMENT - DOWNSTREAM

OF (E) BRIDGE STA 5+89

SCALE: NTS

REMOVE (E) SEDIMENT UNDER (E) BRIDGE

(E) RIP RAP,

TO REMAIN

REMOVE (E) SEDIMENT UNDER (E) BRIDGE

C3

REMOVE (E) SEDIMENT - UPSTREAM

OF (E) BRIDGE STA 4+62

SCALE: NTS

C3

REMOVE (E) SEDIMENT - UNDER (E) BRIDGE STA 5+58

SCALE: NTS

REMOVE (E) SEDIMENT UNDER (E) BRIDGE

(E) BRIDGEPROTECT (E) BRIDGE PIERS

0 10 20 30 40 50 60 700-10-20-30

(E) CONCRETE PATHWAY,

PROTECT IN PLACE

ELEV: 469.34±

PROPOSED GRADE

(E) GRADE

REMOVE (E) SEDIMENT

0 10 20 30 40 50 60 70 800-10-20-30

(E) BRIDGE,

PROTECT IN PLACE

(E) BRIDGE PIER,

PROTECT IN PLACE

(E) BRIDGE PIER,

PROTECT IN PLACE

(E) CONCRETE PATHWAY,

PROTECT IN PLACE

ELEV: 467.25±

PROPOSED GRADE (E) GRADE

REMOVE (E) SEDIMENT

0 10 20 30 40 50 60 70 800-10-20-30

PROPOSED GRADE

(E) GRADE

(E) BRIDGE,

PROTECT IN PLACE

(E) BRIDGE PIER,

PROTECT IN PLACE

(E) BRIDGE PIER,

PROTECT IN PLACE

(E) CONCRETE PATHWAY,

PROTECT IN PLACE

ELEV: 467.25±REMOVE (E) SEDIMENT

0 10 20 30 40 50 60 70 80 900-10-20-30

(E) CONCRETE PATHWAY,

PROTECT IN PLACE

ELEV: 467.50±

(E) GRADE

PROPOSED GRADE

(E) BRIDGE,

PROTECT IN PLACE

(E) BRIDGE PIER,

PROTECT IN PLACE

(E) BRIDGE PIER,

PROTECT IN PLACE

REMOVE (E) SEDIMENT

0 10 20 30 40 50 60 70 80 90 1000-10-20-30-40-50

(E) CONCRETE PATHWAY,

PROTECT IN PLACE

ELEV: 468.68±

(E) GRADE

PROPOSED GRADE

(E) 60" RCP STORM DRAIN,

PROTECT IN PLACE

(E) SDMH - RIM: 476.50±

INV: 465.12± (60" IN)

INV: 465.12± (60" OUT)

REMOVE (E) SEDIMENT

0 10 20 30 40 50 60 70 80 90 1000-10-20-30-40-50

(E) 60" RCP STORM DRAIN,

PROTECT IN PLACE

(E) CONCRETE PATHWAY,

PROTECT IN PLACE

ELEV: 473.33±

PROPOSED GRADE

(E) GRADEREMOVE (E) SEDIMENT

3+00 4+00 5+00 6+00 7+00

START OF SEDIMENT REMOVAL

STA: 4+57

ELEV: 469.78

BOTTOM OF SEDIMENT REMOVAL

STA: 4+63

ELEV: 467.00

BOTTOM OF SEDIMENT REMOVAL

STA: 6+14

ELEV: 467.00

END OF SEDIMENT REMOVAL

STA: 6+20

ELEV: 468.43

GRADE @ 4:1

GRADE @ 2:1

(E) GRADE

REMOVE (E) SEDIMENT

STREAM MAINTENANCE BY CONTRACTORS

CITY PROJECT NO.: SD202523

CITY OF

COMMUNITY DEVELOPMENT DEPARTMENT-ENGINEERING DIVISION

A L I F O R N I AC

BE

NJAMIN L.

No. 68813

C I LIV

STATE OF

AINROFILAC

RE

GI

ST

ER

ED

PROF

RE

EN

IG

NE

LANOISSE

SHICK

(707) 528-4848

SANTA ROSA, CA 95405

2200 RANGE AVENUE, STE 201

CONSULTING CIVIL ENGINEERS

Schaaf Wheeler

NONE

SITE YM-1a - HOLMES STREET

SEDIMENT REMOVAL

CROSS SECTION 4+75 TO 6+00

C4

A C4

B C4

C C4

D C4

E C4

F C4

NOTES:

1. ALL WORK BELOW TOP OF BANK SHALL BE COMPLETED

PRIOR TO OCTOBER 15, 2025.

2. CROSS SECTION SHOWN LOOKING DOWNSTREAM. REFER TO

SHEET C3 FOR LOCATION AND ORIENTATION.

HOR. SCALE: 1" = 20'

CHANNEL PROFILE

VER. SCALE: 1" = 4'

HOR. SCALE: 1" = 10'

SECTION STA 5+25

VER. SCALE: 1" = 5'

SECTION STA 5+50

SECTION STA 5+75

SECTION STA 6+00

SECTION STA 5+00

SECTION STA 4+75

0 10 20 30 40 50 60 70 80 90 1000-10-20

(E) 60" RCP STORM DRAIN

NOTE 5

(E) ASPHALT PATHWAY,

PROTECT IN PLACE

ELEV: 476.09±

NOTE 5 & 8LIMITS OF GRADING

ELEV: 474.65±

LIMITS OF GRADING

ELEV: 467.91±

BASE OF GRADING

ELEV: 463.01±

(E) GRADE

INSTALL 12 TON RIP RAP

NOTE 6

(E) REVETMENT LOG

NOTE 7

(N) GEOTEXTILE

FABRIC

(N) TOE OF SLOPE

ELEV: 468.01±

(E) 14 TON RIP RAP,

TO REMAIN

0 10 20 30 40 50 60 70 80 90 1000-10-20

(E) 60" RCP STORM DRAIN

NOTE 5

(E) ASPHALT PATHWAY,

PROTECT IN PLACE

ELEV: 476.16±

NOTE 5 & 8

LIMITS OF GRADING

ELEV: 475.60±

REMOVE (E) PREVIOUSLY PLACED SEDIMENT

FROM CHANNEL BANK, EXCAVATE TO NATIVE MATERIAL

LIMITS OF GRADING

ELEV: 467.97±

BASE OF GRADING

ELEV: 463.07±

(E) GRADE

INSTALL 12 TON RIP RAP

NOTE 6

(E) REVETMENT LOG

NOTE 7

(N) GEOTEXTILE

FABRIC

(N) TOE OF SLOPE

ELEV: 468.03±

0 10 20 30 40 50 60 70 80 90 1000-10-20

(E) 60" RCP STORM DRAIN

NOTE 5

(E) ASPHALT PATHWAY,

PROTECT IN PLACE

ELEV: 475.85±

NOTE 5 & 8

LIMITS OF GRADING

ELEV: 475.36±

REMOVE (E) PREVIOUSLY PLACED SEDIMENT

FROM CHANNEL BANK, EXCAVATE TO NATIVE MATERIAL

LIMITS OF GRADING

ELEV: 468.21±

BASE OF GRADING

ELEV: 463.31±

(E) GRADE

INSTALL 12 TON RIP RAP

NOTE 6

(E) SDMH - RIM: 475.76±

INV: 465.04± (60" IN)

INV: 465.04± (60" OUT)

(E) REVETMENT LOG

NOTE 7

(N) GEOTEXTILE

FABRIC

(N) TOE OF SLOPE

ELEV: 468.28±

0 10 20 30 40 50 60 70 80 900-10-20

(E) ASPHALT PATHWAY,

PROTECT IN PLACE

ELEV: 475.66±

NOTE 5 & 8

LIMITS OF GRADING

ELEV: 475.30±

REMOVE (E) PREVIOUSLY PLACED SEDIMENT

FROM CHANNEL BANK, EXCAVATE TO NATIVE MATERIAL

INSTALL 12 TON RIP RAP

NOTE 6

LIMITS OF GRADING

ELEV: 468.32±

BASE OF GRADING

ELEV: 463.42±

(E) GRADE

(E) 60" RCP STORM DRAIN

NOTE 5

(N) GEOTEXTILE

FABRIC

(N) TOE OF SLOPE

ELEV: 468.40±

STREAM MAINTENANCE BY CONTRACTORS

CITY PROJECT NO.: SD202523

CITY OF

COMMUNITY DEVELOPMENT DEPARTMENT-ENGINEERING DIVISION

A L I F O R N I AC

BE

NJAMIN L.

No. 68813

C I LIV

STATE OF

AINROFILAC

RE

GI

ST

ER

ED

PROF

RE

EN

IG

NE

LANOISSE

SHICK

(707) 528-4848

SANTA ROSA, CA 95405

2200 RANGE AVENUE, STE 201

CONSULTING CIVIL ENGINEERS

Schaaf Wheeler

NONE

SITE 91 - DOWNSTREAM HOLMES

STREET BRIDGE BANK STABILIZATION

CROSS SECTION 6+25 TO 7+00

C5

G C5

H C5

I C5

J C5

NOTES:

1. ALL WORK BELOW TOP OF BANK SHALL BE COMPLETED PRIOR TO

OCTOBER 15, 2025.

2. CROSS SECTION SHOWN LOOKING DOWNSTREAM. REFER TO

SHEET C2 FOR LOCATION AND ORIENTATION.

3. MATERIAL REMOVED FROM THE DRAINAGE CHANNEL SHALL BE

STOCKPILED AND DRAINED PRIOR TO BEING OFF-HAULED.

4. CONTRACTOR SHALL REMOVE AND DISPOSE OF TRASH, SOIL,

SILT, MUD, EXCESSIVE ORGANIC MATERIAL AND DEBRIS.

5. CONTRACTOR SHALL MINIMIZE TRAFFIC AND EQUIPMENT

LOADING ON BIKE/PEDESTRIAN TRAIL TO ENSURE PROTECTION

OF BIKE/PEDESTRIAN TRAIL AND STORM DRAIN PIPE.

CONTRACTOR SHALL ACCURATELY LOCATE EXISTING 60-INCH

STORM DRAIN PIPE AND PROTECT IN PLACE AT ALL TIMES DURING

CONSTRUCTION. ROCK RIP RAP SHALL NOT BE PLACED WITHIN

3-FEET OF EXISTING STORM DRAIN PIPE.

6. RIP RAP SHALL BE PLACED PER DETAIL .

7. (E) REVETMENT LOGS SHALL BE REMOVED AND PROPERLY

DISPOSED.

8. EXISTING BIKE/PEDESTRIAN TRAIL SHALL BE USED AS A

CONSTRUCTION ACCESS TO PERFORM IMPROVEMENTS AT THE

BANK STABILIZATION SITE. UPON COMPLETION OF

CONSTRUCTION AND AFTER BANK REPAIR WORK, CONTRACTOR

SHALL REPAIR AND RESTORE PATHWAY TO PRE-CONSTRUCTION

CONDITIONS. PATH SHALL BE RESTORED TO THE PAVEMENT

THICKNESS OF THE ORIGINAL CONDITION (CLASS 1A PAVED

SHARED USE PATH), WHICH SHALL BE 4" HMA WITH 6" AB.

RESTORATION WORK OF PAVEMENT SHALL EXTEND 15' BEYOND

THE RIP RAP INSTALLATION.

9. CONTRACTOR SHALL PLACE AND COMPACT EXCAVATED ON-SITE

MATERIAL WITHIN ALL VOIDS OF RIP-RAP AS IT IS PLACED. PLACE

6" OF EXCAVATED ON-SITE MATERIAL ON TOP OF EXISTING AND

NEW RIP RAP AS SHOWN ON DETAIL 3/D1. ALL UNUSED

EXCAVATED MATERIAL SHALL BE OFF-HAULED AND DISPOSED OF

BY THE CONTRACTOR. ALL MATERIAL SHALL BE DRAINED PRIOR

TO OFF-HAUL.

D1

SECTION STA 6+25

VER. SCALE: 1" = 2.5'

SECTION STA 6+50

SECTION STA 6+75

SECTION STA 7+00

0 10 20 30 40 50 60 70 80 900-10-20

(E) ASPHALT PATHWAY,

PROTECT IN PLACE

ELEV: 474.26±

NOTE 5 & 7

LIMITS OF GRADING

ELEV: 474.25±

LIMITS OF GRADING

ELEV: 466.59±

BASE OF GRADING

ELEV: 461.69±

(E) GRADE

INSTALL 12 TON RIP RAP

NOTE 6

(E) 60" RCP STORM DRAIN

NOTE 5

(N) GEOTEXTILE

FABRIC

(N) TOE OF SLOPE

ELEV: 466.69±

0 10 20 30 40 50 60 70 80 900-10-20

(E) ASPHALT PATHWAY,

PROTECT IN PLACE

ELEV: 473.70±

NOTE 5 & 7

LIMITS OF GRADING

ELEV: 473.32±

LIMITS OF GRADING

ELEV: 466.00±

BASE OF GRADING

ELEV: 461.12±

(E) GRADE INSTALL 12 TON RIP RAP

NOTE 6

(E) 60" RCP STORM DRAIN

NOTE 5

(N) GEOTEXTILE

FABRIC

(N) TOE OF SLOPE

ELEV: 466.09±

0 10 20 30 40 50 60 70 80 900-10-20

(E) ASPHALT PATHWAY,

PROTECT IN PLACE

ELEV: 474.84±

NOTE 5 & 7

LIMITS OF GRADING

ELEV: 474.60±

LIMITS OF GRADING

ELEV: 467.29±

BASE OF GRADING

ELEV: 462.39±

(E) GRADE

(E) 60" RCP STORM DRAIN

NOTE 5

INSTALL 12 TON RIP RAP

NOTE 6

(N) GEOTEXTILE

FABRIC

(N) TOE OF SLOPE

ELEV: 467.39±

0 10 20 30 40 50 60 70 80 900-10-20

(E) ASPHALT PATHWAY,

PROTECT IN PLACE

ELEV: 475.41±

NOTE 5 & 7

LIMITS OF GRADING

ELEV: 475.00±

LIMITS OF GRADING

ELEV: 467.98±

BASE OF GRADING

ELEV: 463.08±

(E) GRADE

INSTALL 12 TON RIP RAP

NOTE 6

(E) 60" RCP STORM DRAIN

NOTE 5

(N) GEOTEXTILE

FABRIC

(N) TOE OF SLOPE

ELEV: 468.07±

STREAM MAINTENANCE BY CONTRACTORS

CITY PROJECT NO.: SD202523

CITY OF

COMMUNITY DEVELOPMENT DEPARTMENT-ENGINEERING DIVISION

A L I F O R N I AC

BE

NJAMIN L.

No. 68813

C I LIV

STATE OF

AINROFILAC

RE

GI

ST

ER

ED

PROF

RE

EN

IG

NE

LANOISSE

SHICK

(707) 528-4848

SANTA ROSA, CA 95405

2200 RANGE AVENUE, STE 201

CONSULTING CIVIL ENGINEERS

Schaaf Wheeler

NONE

SITE 91 - DOWNSTREAM HOLMES

STREET BRIDGE BANK STABILIZATION

CROSS SECTION 7+25 TO 8+00

C6

NOTES:

1. ALL WORK BELOW TOP OF BANK SHALL BE COMPLETED PRIOR

TO OCTOBER 15, 2025.

2. CROSS SECTION SHOWN LOOKING DOWNSTREAM. REFER TO

SHEET C2 FOR LOCATION AND ORIENTATION.

3. MATERIAL REMOVED FROM THE DRAINAGE CHANNEL SHALL

BE STOCKPILED AND DRAINED PRIOR TO BEING OFF-HAULED.

4. CONTRACTOR SHALL REMOVE AND DISPOSE OF TRASH, SOIL,

SILT, MUD, EXCESSIVE ORGANIC MATERIAL AND DEBRIS.

5. CONTRACTOR SHALL MINIMIZE TRAFFIC AND EQUIPMENT

LOADING ON PATHWAY TO ENSURE PROTECTION OF

PATHWAY AND STORM DRAIN PIPE. CONTRACTOR SHALL

ACCURATELY LOCATE EXISTING 60-INCH STORM DRAIN PIPE

AND PROTECT IN PLACE AT ALL TIMES DURING

CONSTRUCTION. ROCK RIP RAP SHALL NOT BE PLACED

WITHIN 3-FEET OF EXISTING STORM DRAIN PIPE.

6. RIP RAP SHALL BE PLACED PER DETAIL .

7. EXISTING BIKE/PEDESTRIAN TRAIL SHALL BE USED AS A

CONSTRUCTION ACCESS TO PERFORM IMPROVEMENTS AT

THE BANK STABILIZATION SITE. UPON COMPLETION OF

CONSTRUCTION AND AFTER BANK REPAIR WORK,

CONTRACTOR SHALL REPAIR AND RESTORE PATHWAY TO

PRE-CONSTRUCTION CONDITIONS. PATH SHALL BE RESTORED

TO THE PAVEMENT THICKNESS OF THE ORIGINAL CONDITION

(CLASS 1A PAVED SHARED USE PATH), WHICH SHALL BE 4"

HMA WITH 6" AB. RESTORATION WORK OF PAVEMENT SHALL

EXTEND 15' BEYOND THE RIP RAP INSTALLATION.

8. CONTRACTOR SHALL PLACE AND COMPACT EXCAVATED

ON-SITE MATERIAL WITHIN ALL VOIDS OF RIP-RAP AS IT IS

PLACED. PLACE 6" OF EXCAVATED ON-SITE MATERIAL ON TOP

OF EXISTING AND NEW RIP RAP AS SHOWN ON DETAIL 3/D1.

ALL UNUSED EXCAVATED MATERIAL SHALL BE OFF-HAULED

AND DISPOSED OF BY THE CONTRACTOR. ALL MATERIAL

SHALL BE DRAINED PRIOR TO OFF-HAUL.

D1

M C6

N C6

K C6

L

C6HOR. SCALE: 1" = 10'

SECTION STA 7+25

SECTION STA 7+50

SECTION STA 7+75

SECTION STA 8+00

2' O C

1' O C

6' WIDE (TYP)2' (TYP)

TOP OF BIOENGINEERED REVETMENT

UPSTREAM END

DOWNSTREAM END

3'

6"

(TYP)

2' O C

FLOW

FLOW

TOP OF BANK

1. OVERLAP DIRECTION OF STREAM FLOW.

2. EROSION CONTROL BLANKET SHALL BE MADE OF BIODEGRADABLE

MATERIAL, NO POLYURETHANE NETTING PERMITTED.

NOTES

M

IN

10'-0" (MAX)

FASTENERS (TYP)

8" M

A X

(T Y

P

FENCE OPENING DETAIL

CONSTRUCTION

FENCE FABRIC

POST

CONSTRUCTION

FENCE FABRIC

POST

END POSTSVARIES

VARIES VARIES

45°

TYP

SLOPE

COMPACTED BACKFILL

CONSTRUCTION

FENCE FABRIC

FASTENER (TYP)

POST

NOTES

1. ALL FENCING SHALL BE REMOVED BY CONTRACTOR AT END OF PROJECT.

2. POSTS TO BE INSTALLED ON INSIDE ASPECT OF WORK SITE.

3. CONTRACTOR SHALL MARK AND REVIEW THE PROPOSED LOCATIONS OF THE CONSTRUCTION FENCE WITH THE CITY'S BIOLOGIST PRIOR TO CONSTRUCTION. THE LOCATION AND EXTENTS IS AT

THE DISCRETION OF THE BIOLOGIST, THE CONTRACTOR SHALL ADJUST AS DIRECTED BY THE CITY'S BIOLOGIST.

POST

CONSTRUCTION FENCE FABRIC

GROUND SURFACE

SLOPED LENGTH

VARIES

4'

MIN

(E) GRADE

(N) 12 TON RIP RAP

(N) GEOTEXTILE FABRIC

(E) AC PATH

MIN 4'

(E) TOE OF SLOPE

4'-0"

BENCH2

END OF GRADING

2.5'

MIN. 4.9' BELOW

CHANNEL FLOWLINE

PLACE 6" OF ON-SITE EXCAVATED

MATERIAL ON ALL (E) AND (N) RIP RAP

5' 5'

MAX

VARIES

HYDROSEED ON 4' WIDE

BENCH AND ABOVE

STREAM MAINTENANCE BY CONTRACTORS

CITY PROJECT NO.: SD202523

CITY OF

COMMUNITY DEVELOPMENT DEPARTMENT-ENGINEERING DIVISION

A L I F O R N I AC

BE

NJAMIN L.

No. 68813

C I LIV

STATE OF

AINROFILAC

RE

GI

ST

ER

ED

PROF

RE

EN

IG

NE

LANOISSE

SHICK

(707) 528-4848

SANTA ROSA, CA 95405

2200 RANGE AVENUE, STE 201

CONSULTING CIVIL ENGINEERS

Schaaf Wheeler

NONE

DETAILS

D1

D1

EROSION CONTROL BLANKET DETAIL

SCALE: NTS

D1

CONSTRUCTION FENCE INSTALLATION DETAIL

SCALE: NTS

D1

RIP RAP SLOPE PROTECTION DETAIL

SCALE: NTS