Attachment 2 Tyler Dam Drawings.pdf

C O

VE

R

S H

EE

T

NATURAL RESOURCES CONSERVATION SERVICE of the

U.S. DEPARTMENT OF AGRICULTURE

in Cooperation with Project Local Sponsor

COMMONWEALTH of MASSACHUSETTS DEPARTMENT OF CONSERVATION and RECREATION

DIVISION of DESIGN and ENGINEERING OFFICE of DAM SAFETY

LOCATION MAP

APPROX. SCALE IN FEET

-0- 200200 400

NRCS JOB CLASS VII

INDEX OF DRAWINGS

SHEET NO. SHEET TITLE

1 COVER SHEET

GENERAL NOTES - SHEET 2 OF 2

TYLER DAM REHABILITATION PROJECT

FLOODWATER RETARDING DAM

MIDDLESEX COUNTY, MASSACHUSETTS

DRAINAGE AREA 24,704 ACRES

FLOOD STORAGE 1,463 ACRE FT.

AT AUXILIARY SPILLWAY CREST

WATER SURFACE AREA N/A ACRES

AT NORMAL POOL

HEIGHT OF DAM 38.5 FEET

VICINITY MAP

APPROX. SCALE IN MILES

-0- 1010 20

MASSACHUSETTS STATE MAP

NOT TO SCALE

SOURCE: milebymile.com©

MIDDLESEX COUNTY

BOUNDARY LINE

SHEET TITLE

COVER SHEET

MASSACHUSETTS

ROBIN HILL STREET

5 PLAN OF EXISTING DAM - SHEET 1 OF 2

MIDDLESEX COUNTY

TYLER DAM

TYLER DAM

EXISTING SITE PLAN

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

-T yl er D am \C

AD

D

\D es ig n

Se t\C

O

VE

R S

H

EE

T.

dw g Pl ot te d By

: B ria n M ille r, Pl ot

D at e:

/1 6/

:1

PM

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

1 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

PRIOR TO EXCAVATION THE CONTRACTOR SHALL CALL THE DIG SAFE SYSTEM INC.

ONE-CALL NUMBER 888-DIG-SAFE. WRITTEN DOCUMENTATION SHALL BE PRESENTED

TO THE CONTRACTING OFFICER REPRESENTATIVE BY THE CONTRACTOR CERTIFYING

THAT THE ONE-CALL NUMBER HAS BEEN CALLED AND ALL UTILITIES LOCATED WITHIN

THE WORK AREA HAVE BEEN MARKED. ONLY AFTER THE CONTRACTING OFFICER

REPRESENTATIVE HAS THIS DOCUMENT IN HAND MAY EXCAVATION PROCEED.

PLAN OF DAM - SHEET 1 OF 2

SOURCE: © BING 2016

PLAN OF EXISTING DAM - SHEET 2 OF 2

DAM EMBANKMENT SECTION

AUXILIARY SPILLWAY APPROACH CHANNEL MODIFICATIONS

PLAN OF DAM - SHEET 2 OF 2

E&S NARRATIVE AND DETAILS - SHEET 1 OF 3

E&S NARRATIVE AND DETAILS - SHEET 2 OF 3

E&S NARRATIVE AND DETAILS - SHEET 3 OF 3

18 E&S AND SITE ACCESS PLAN - SHEET 1 OF 2

19 E&S AND SITE ACCESS PLAN - SHEET 2 OF 2

CHAIN-LINK FENCE DETAILS

FOUNDATION EXPLORATION PLAN

13 CONCRETE CREST WALL PLAN

14 CONCRETE CREST WALL DETAILS

16 MISCELLANEOUS DETAILS

GENERAL NOTES AND LEGEND - SHEET 1 OF 22

BORING AND TEST PIT LOGS - SHEET 1 OF 3

BORING AND TEST PIT LOGS - SHEET 2 OF 3

BORING AND TEST PIT LOGS - SHEET 3 OF 3

SURVEY CONTROL AND SITE LAYOUT PLAN

AUXILIARY SPILLWAY GCL LINER DETAILS12

GFT INFRASTRUCTURE, INC.

PROJECT DESIGNER

A

AASHTO AMERICAN ASSOCIATION OF STATE HIGHWAY AND

TRANSPORTATION OFFICIALS

ACI AMERICAN CONCRETE INSTITUTE

AC-FT ACRE-FOOT (FEET)

ADDL ADDITIONAL

AFF ABOVE FINISHED FLOOR

AFG ABOVE FINISHED GRADE

AISC AMERICAN INSTITUTE OF STEEL CONSTRUCTION

AL ALUMINUM

ALLOW. ALLOWABLE

ALT ALTERNATE

ANSI AMERICAN NATIONAL STANDARDS INSTITUTE

ASTM AMERICAN SOCIETY FOR TESTING AND MATERIALS

APPROX APPROXIMATE(LY)

ASW AUXILIARY SPILLWAY

AVG AVERAGE

AWWA AMERICAN WATER WORKS ASSOCIATION

@ AT

B

BF BLIND FLANGE OR BACK FACE

BFF BELOW FINISHED FLOOR

BFG BELOW FINISHED GRADE

BFV BUTTERFLY VALVE

BASELINE

BM BENCHMARK

BOT BOTTOM

B.P. BEGINNING POINT

C

C/C, C.C., C TO C CENTER TO CENTER

CF CUBIC FOOT (FEET)

CFM CUBIC FEET PER MINUTE

CFS CUBIC FEET PER SECOND

CI CAST IRON

CIP CAST IN PLACE OR CAST IRON PIPE

CJ CONSTRUCTION JOINT

CENTERLINE

CLR CLEARANCE, CLEAR, CLEAR DISTANCE

CMP CORRUGATED METAL PIPE

CONC CONCRETE

CONST, CONSTR CONSTRUCTION

CONT CONTINUOUS

CONTR CONTRACTION

COR CONTRACTING OFFICER'S REPRESENTATIVE

CORR CORRUGATED

CY CUBIC YARD(S)

D

DEPT DEPARTMENT

DI DUCTILE IRON

DIP DUCTILE IRON PIPE

DIA, Ø DIAMETER

DWG DRAWING

E

E EAST/EASTING COORDINATE

EA EACH

EF EACH FACE

EL, EL. ELEVATION

EXP EXPANSION

EXP JT EXPANSION JOINT

EXT EXTERIOR

E&SC EROSION AND SEDIMENT CONTROL

EQ EQUAL

EW EACH WAY

F

FF FRONT FACE

FM FORCE MAIN

FTG FOOTING

FT, FT/FT FOOT/FEET, FEET PER FOOT

G

GALV. GALVANIZED

GCL GEOSYNTHETIC CLAY LINER

GIS GEOGRAPHICAL INFORMATION SYSTEM

GPD GALLONS PER DAY

GPM GALLONS PER MINUTE

H

HEX HEXAGONAL

HDPE HIGH DENSITY POLYETHYLENE

HH HAND HOLE

HORIZ HORIZONTAL

I

ID INSIDE DIAMETER

IN INCH(ES)

INTR INTERIOR

INV INVERT

J

JT JOINT

JB JUNCTION BOX

L

LB POUND

LBS POUNDS

LF, LINEAR FEET

M

MAX MAXIMUM

MH MANHOLE

MIN MINIMUM

MISC MISCELLANEOUS

MJ MECHANICAL JOINT

MSE MECHANICALLY STABILIZED EMBANKMENT

N

N NORTH/NORTHING COORDINATE

N/A NOT APPLICABLE

NAD NORTH AMERICAN DATUM

NAVD NORTH AMERICAN VERTICAL DATUM

NGVD NATIONAL GEODETIC VERTICAL DATUM

NTS NOT TO SCALE

No., # NUMBER

O

OC ON CENTER

OD OUTSIDE DIAMETER

OE OVERHEAD ELECTRIC

OPNG OPENING

OZ OUNCE

P

P.C. POINT OF CURVATURE

PCCP PRESTRESSED CONCRETE CYLINDER PIPE

PCF POUNDS PER CUBIC FOOT

PE PLAIN END

P.I. POINT OF INFLECTION

PL PLATE

POB POINT OF BEGINNING

POI POINT OF INTERSECTION

PSF POUNDS PER SQUARE FOOT

PSI POUNDS PER SQUARE INCH

PSW PRINCIPAL SPILLWAY

P.T. POINT OF TANGENCY

PVC POLYVINYL CHLORIDE OR POINT VERTICAL CURVATURE

PVI POINT VERTICAL INTERSECTION

PVT POINT VERTICAL TANGENCY

Q

QTY QUANTITY

R

R RADIUS

RCC ROLLER COMPACTED CONCRETE

RCP REINFORCED CONCRETE PIPE

REIN REINFORCED

REQ'D REQUIRED

RGS RIGID GALVANIZED STEEL

RJ RESTRAINED JOINT

ROW RIGHT OF WAY

S

SECT SECTION

SF SQUARE FOOT (FEET)

SHT SHEET

SPA SPACING

SQ SQUARE

SS STAINLESS STEEL

STA STATION

STD STANDARD

SY SQUARE YARD

T

TEMP TEMPORARY

TOPO TOPOGRAPHY

TYP, TYP., (TYP) TYPICAL

U

UNO UNLESS OTHERWISE NOTED

USGS U.S. GEOLOGICAL SURVEY

U/S UPSTREAM

V

VC VERTICAL CURVE

VERT VERTICAL

VOL VOLUME

W

WM WATERMAIN

W/ WITH

W/O WITHOUT

WT WEIGHT

Y

YD YARD

ABBREVIATIONS

ABBREVIATIONS NOTE:

1. THIS IS A STANDARD LIST OF ABBREVIATIONS AND ALL THE

ABBREVIATIONS SHOWN MAY NOT BE USED IN THIS SET OF DRAWINGS.

A

A

SECTION A

SECTION SYMBOLS:

EXISTING LEGEND

SECTION OR DETAIL IDENTIFIER

SHEET NO. WHERE SHOWN

OR WHERE CALLED-OUT

MAJOR CONTOUR

MINOR CONTOUR

UNDERGROUND ELECTRIC

OVERHEAD ELECTRIC

GAS

UNDERGROUND TELECOMMUNICATIONS

OVERHEAD TELECOMMUNICATIONS

UNDERGROUND CABLE TV

OVERHEAD CABLE TV

WATERMAIN

FIBER OPTIC

FORCE MAIN

SANITARY SEWER

STORM SEWER

AIR LINE

RIPRAP

SWALE / DITCH

LIMIT OF DETAILED FIELD SURVEY

PROPERTY LINE

RIGHT OF WAY

EASEMENT LINE

CENTERLINE / BASELINE

EDGE OF WATER

VEGETATION

BRUSH

HEDGE ROW

FENCE

GUIDE RAIL

HANDRAIL

RAILROAD

BORDERING VEGETATED WETLAND

ROCK OUTCROP

GRAVEL ROAD

PAVED ROAD

100' BUFFER ZONE

BANK/ORDINARY HIGH WATER (BANK/OHW)

BORDERING LAND SUBJECT TO FLOODING (BLSF)

200' RIVERFRONT AREA

30' WETLAND SET BACK (LOCAL)

TREE - DECIDUOUS

TREE - CONIFEROUS

SHRUB

BORING

TEST PIT

IRON PIN

CONTROL POINT

BENCHMARK

MARKER POST

RAILROAD SPIKE

SURVEY MONUMENT

PK NAIL

BOLLARD

WELL

WATER VALVE

WATER METER

FIRE HYDRANT

CLEANOUT

SPIGOT

DOWNSPOUT

STORM MANHOLE

STORM INLET

SANITARY MANHOLE

VENT

GAS VALVE

GAS METER

CABLE TV UTILITY BOX

TELECOMMUNICATIONS UTILITY BOX

TELECOMMUNICATIONS MANHOLE

ELECTRICAL MANHOLE

LIGHT POST

UTILITY POLE

GUY WIRE

MANHOLE - UNKNOWN UTILITY

JUNCTION BOX

MAILBOX

SIGN

MAJOR CONTOUR

MINOR CONTOUR

GEOMEMBRANE

LIMIT OF WORK

SLOPE (SLOPING ↓)

CONCRETE SURFACE SLOPE (SLOPING ↓)

TOP OF ROCK

EARTH SUBGRADE

WATER LEVEL (FOR SECTIONS AND PROFILES)

FLOW ARROW

SHEETPILE

ROCK CONSTRUCTION ENTRANCE

PROPOSED AND MISCELLANEOUS LEGEND

G

EN

ER

AL

N O

TE

S

AN

D

L

EG

EN

D

SH

EE

T

O

F

GENERAL DRAFTING NOTES:

1. GREY OR LIGHT LINEWORK GENERALLY REPRESENT EXISTING FEATURES,

WHEREAS DARKER BLACK LINEWORK IS GENERALLY INTENDED TO DEPICT

NEW CONSTRUCTION.

2. DIMENSION AND TEXT CALLOUTS

PROJECT NOTES

GENERAL NOTES:

1. ALL ELEVATIONS ARE IN UNITS OF FEET, UNLESS NOTED OTHERWISE.

2. NUMERICAL DIMENSIONS OR VALUES WILL TAKE PRECEDENCE OVER ANY SCALED DIMENSIONS OR

VALUES. ALL ELEVATIONS ARE IN UNITS OF FEET, UNLESS NOTED OTHERWISE.

3. THE CONTRACTOR SHALL CONFINE ALL WORK TO THE LIMIT OF WORK AS SHOWN ON THE DRAWINGS.

4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTING EXISTING FEATURES TO REMAIN INCLUDING TREES, ROADS, UTILITIES, PAVING AND SIMILAR ITEMS BOTH INSIDE AND OUTSIDE OF THE LIMIT OF WORK, WHICH IF DAMAGED BY THE CONTRACTOR SHALL BE REPLACED IN KIND AT NO COST

TO THE NRCS. PRIOR TO COMMENCING CONSTRUCTION, COR AND CONTRACTOR WILL PERFORM A

SITE INSPECTION AND DOCUMENT (WITH PHOTOGRAPHS AND DESCRIPTIONS) THE CONDITION OF EXISTING FEATURES TO BE PROTECTED. CONTRACTOR WILL SUBMIT DOCUMENTATION TO COR FOR

APPROVAL.

5. RESTORE ALL DISTURBED AREAS TO THE ORIGINAL CONDITIONS OR AS SHOWN ON THE DRAWINGS.

SURVEY NOTES:

1. MAPPING SOURCES AND DATUM: THE FOLLOWING NOTES PERTAIN TO ALL MAPPING PRESENTED IN

THESE DRAWINGS.

a. SITE SURVEY PERFORMED BY GANNETT FLEMING IN JULY, 2016.

b. LIDAR GENERATED FROM MASSGIS DATA, DECEMBER 2010.

c. VERTICAL DATUM IS NAVD 88 COMPUTED USING GEOID12B.

d. GRID IS MASSACHUSETTS STATE PLANE COORDINATE SYSTEM MAINLAND ZONE, NAD 83 (2011).

e. ELEVATIONS SHOWN ARE IN FEET.

f. CONTOURS WITHIN LIMIT OF SURVEY WERE GENERATED FROM DETAILED SURVEY PERFORMED BY

GANNETT FLEMING. ALL CONTOURS AND FEATURES SHOWN OUTSIDE LIMIT OF SURVEY WERE

GENERATED FORM LIDAR DATA AND AERIAL IMAGERY.

g. DRAWING UNITS ARE IN US SURVEY FEET.

2. PROPERTY BOUNDARIES ARE BASED ON COUNTY TAX MAP INFORMATION AND ARE INTENDED FOR

PLANNING PURPOSES ONLY.

3. INFORMATION SHOWN OUTSIDE THE INDICATED DETAILED FIELD SURVEY LIMITS IS FOR REFERENCE

ONLY AND HAS NOT BEEN SURVEYED OR VERIFIED. THESE FEATURES HAVE BEEN GENERALLY

LOCATED BASED ON AERIAL IMAGERY AND AS-BUILT DRAWINGS. THE CONTRACTOR SHALL FIELD

VERIFY ALL FEATURES AND CONDITIONS THAT MAY AFFECT WORK.

4. SURVEY AND MAPPING OF EXISTING GROUND FEATURES PROVIDED, AND STRUCTURAL DETAILS

THAT WERE DERIVED FROM PRIOR AS-BUILT DRAWINGS, MAY NOT REFLECT LATEST SITE

CONDITIONS. CONTRACTOR SHALL FIELD-VERIFY CONDITIONS AND RELEVANT DIMENSIONS PRIOR TO START OF CONSTRUCTION. DISCREPANCIES SHALL BE BROUGHT TO THE COR'S ATTENTION FOR

RESOLUTION PRIOR TO THE START OF WORK.

UTILITIES:

1. CARE SHALL BE TAKEN NOT TO DAMAGE EXISTING UTILITIES OR STRUCTURES TO REMAIN. ANY DAMAGE CAUSED BY THE CONTRACTOR'S OPERATION SHALL BE REPAIRED BY THE CONTRACTOR IN A TIMELY MANNER, TO THE SATISFACTION OF THE COR, AND AT NO EXTRA COST. PERFORM UTILITY

COORDINATION AND TEMPORARY RELOCATION AS NECESSARY, AND AS REQUIRED BY THE

CONTRACT DOCUMENTS.

2. OVERHEAD ELECTRIC LINES ARE PRESENT ALONG ROBIN HILL STREET. TAKE CAUTION NOT TO

DAMAGE OVERHEAD ELECTRIC LINES DURING CONSTRUCTION, ESPECIALLY WHEN USING

CONSTRUCTION ENTRANCES.

3. PROTECT ALL EXISTING UNDERGROUND UTILITIES AND FACILITIES TO REMAIN AGAINST DAMAGE FROM HAULING AND CONSTRUCTION OPERATIONS. IT IS THE CONTRACTOR'S RESPONSIBILITY TO IDENTIFY SUCH UTILITIES AND FACILITIES. IN NO CASE SHALL THE CONTRACTOR PLACE VEHICLE LOADS EXCEEDING THE LEGAL LOAD LIMIT WITHIN 10 FEET OF THESE UTILITIES AND FACILITIES. IF

THE CONTRACTOR ELECTS TO PLACE LOADS EXCEEDING THE LEGAL LIMIT ON THESE OR OTHER

UNDERGROUND FACILITIES OR UTILITIES, IT WILL BE THE CONTRACTOR'S RESPONSIBILITY TO DETERMINE AND ADVISE THE COR OF THE TYPE, SIZE AND WEIGHT OF ALL VEHICLES HE INTENDS TO USE OVER THESE FACILITIES DURING CONSTRUCTION, AND PROTECT THE FACILITIES FROM DAMAGE, TAKING INTO ACCOUNT THE CONDITIONS OF EXISTING FACILITIES. THIS DETERMINATION SHALL BE

MADE BY A PROFESSIONAL ENGINEER LICENSED IN THE STATE OF MASSACHUSETTS, EMPLOYED

AND PAID BY THE CONTRACTOR, AND IS TO BE MADE PRIOR TO THE LOADING OF ANY FACILITIES

WITH ALL RESTRICTIONS ENUMERATED BY THE PROFESSIONAL ENGINEER BEING STRICTLY

OBSERVED. IN THE EVENT THE CONTRACTOR FAILS TO COMPLY WITH FINDINGS OF THE

PROFESSIONAL ENGINEER, THE WORK SHALL IMMEDIATELY CEASE UNTIL CORRECTIVE

PROCEDURES, SATISFACTORY TO THE PROFESSIONAL ENGINEER AND COR ARE EMPLOYED. ALL

DAMAGE, DIRECT OR INDIRECT, OF WHATEVER NATURE RESULTING FROM THE PERFORMANCE OF

THE WORK OR RESULTING TO THE WORK DURING ITS PROGRESS, FROM WHATEVER CAUSE, SHALL

BE BORNE AND SUSTAINED BY THE CONTRACTOR.

4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR COORDINATING AND PROVIDING TEMPORARY

UTILITY AND POWER AS NECESSARY FOR ALL WORK.

5. UTILITIES ARE SHOWN AT APPROXIMATE ELEVATIONS AND LOCATIONS. EXACT LOCATIONS AND SIZES OF EXISTING UTILITIES IN THE AREA OF CONSTRUCTION SHALL BE VERIFIED IN THE FIELD BY

THE CONTRACTOR.

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\G en er al

N ot es a nd L eg en d.

dw g Pl ot te d By

: M ille r, Br ia n

S.

, P lo t D at e:

0/

/2

1:

P M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

2 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

LEGEND NOTES:

1. THIS IS A STANDARD LIST OF SYMBOLS AND ALL THE SYMBOLS SHOWN

MAY NOT BE USED IN THIS SET OF DRAWINGS.

2. ADDITIONAL SITE SPECIFIC LEGENDS MAY BE SHOWN ELSEWHERE ON THE

DRAWINGS WHICH WOULD TAKE PRECEDENCE OVER THE LEGENDS

SHOWN ON THIS SHEET.

G

EN

ER

AL

N O

TE

S

- S H

EE

T

O

F

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

-T yl er D am \C

AD

D

\D es ig n

Se t\G en er al N ot es a nd

L eg en d.

dw g

Pl ot te d

By : B ria n

M ille r, Pl ot D at e:

/1

8/

0:

A M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

3 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

EARTHFILL

1. APPROVED EARTHFILL, APPROXIMATELY 980 C.Y.

A. PLACE APPROVED EARTHFILL ON THE CREST OF THE DAM AND ON THE DAM EMBANKMENT TO RESTORE THE TEMPORARY

ACCESS ROAD. LOCATIONS ARE SHOWN ON THE DRAWINGS.

B. MATERIAL IN APPROVED EARTHFILL SHALL HAVE USCS CLASSIFICATION OF ML OR SM AND SHALL BE OBTAINED FROM

THE AUXILIARY SPILLWAY APPROACH EXCAVATION.

C. COMPACTION OF APPROVED EARTHFILL SHALL BE CLASS A IN ACCORDANCE WITH CS 23. A PADFOOT (OR SHEEPSFOOT) TAMPING ROLLER SHALL BE USED, AND EQUIPMENT USED FOR SPREADING AND COMPACTING ABOVE GEOSYNTHETIC CLAY LINER SHALL MEET THE REQUIREMENTS OF CS 98. FILL MATERIAL SHALL BE COMPACTED TO AT LEAST 95 PERCENT OF THE MAXIMUM DRY DENSITY. MOISTURE CONTENT AT THE TIME OF COMPACTION SHALL BE WITHIN A RANGE FROM 2 PERCENT BELOW OPTIMUM TO 2 PERCENT ABOVE OPTIMUM. THE MAXIMUM DENSITY AND OPTIMUM MOISTURE

CONTENT SHALL BE DETERMINED BY ASTM D-698.

D. THE MAXIMUM LAYER THICKNESS, BEFORE COMPACTION, SHALL BE 9 INCHES. THE MAXIMUM ROCK PARTICLE SIZE INCORPORATED INTO APPROVED EARTHFILL PRIOR TO COMPACTION SHALL BE 3 INCHES. ALL ROCK PARTICLES LARGER

THAN 3 INCHES SHALL BE REMOVED.

2. RANDOM EARTHFILL, APPROXIMATELY 1,720 C.Y.

A. RANDOM EARTHFILL WILL BE USED IN THE SPOIL AREA, AS SHOWN ON THE DRAWINGS.

B. MATERIAL IN RANDOM EARTHFILL SHALL CONSIST OF FILL OR OVERBURDEN SOILS OBTAINED FROM THE AUXILIARY SPILLWAY APPROACH EXCAVATION AND OTHER REQUIRED EXCAVATIONS WHICH ARE UNSUITABLE FOR USE AS

APPROVED EARTHFILL.

C. COMPACTION OF RANDOM EARTHFILL SHALL BE CLASS C IN ACCORDANCE WITH CS 23. A PADFOOT (OR SHEEPSFOOT ) TAMPING ROLLER SHALL BE USED. THE ROLLER SHALL EXERT A MINIMUM PRESSURE OF 450 PSI (BASED ON THE HORIZONTAL PROJECTION OF THE FACE TO THE ROLLER TOOTH) AND SHALL HAVE A MINIMUM DRUM DIAMETER OF 60 INCHES. A MINIMUM OF 6 PASSES, OVER THE ENTIRE SURFACE OF EACH LIFT, SHALL BE REQUIRED AT A TOWING SPEED OF NOT LESS THAN 3 FEET PER SECOND NOR NOT MORE THAN 6 FEET PER SECOND (2-4 MPH).

D. THE MOISTURE CONTENT OF RANDOM EARTHFILL SHALL BE MAINTAINED WITHIN THE LIMITS REQUIRED TO : (A) PREVENT WEAVING, RUTTING , BULKING OR DILATANCE OF THE MATERIAL UNDER THE ACTION OF THE HAULING OR COMPACTING EQUIPMENT, (B) PREVENT THE ADHERENCE OF THE EARTHFILL MATERIAL TO THE ROLLER PADS/FEET, TREADS OR TRACKS OF THE PLACEMENT AND COMPACTION EQUIPMENT, (C) PREVENT MATERIAL FROM GENERATING DUST DURING PLACING AND COMPACTION, AND (D) ENSURE THE CRUSHING AND BLENDING OF THE SOIL CLODS AND AGGREGATIONS

INTO A REASONABLY HOMOGENOUS MASS.

E. THE MAXIMUM LAYER THICKNESS, BEFORE COMPACTION, SHALL BE 12 INCHES. THE MAXIMUM SIZE ROCK PARTICLE SIZE INCORPORATED IN RANDOM EARTHFILL PRIOR TO COMPACTION SHALL BE 10 INCHES. ALL ROCK PARTICLES LARGER

THAN 10 INCHES SHALL BE REMOVED.

F. RANDOM EARTHFILL SHALL BE GRADED TO PROVIDE POSITIVE DRAINAGE.

3. STRUCTURE BACKFILL, QUANITY IS INCLUDED AS PART OF APPROVED FILL

A. STRUCTURE BACKFILL WILL BE PLACED ADJACENT TO THE CONCRETE CREST WALL AND ABOVE THE GCL ADJACENT TO

THE HEADWALL.

B. PARAGRAPH 1-B ABOVE SHALL APPLY.

C. STRUCTURE BACKFILL ADJACENT TO CONCRETE AS DEFINED IN SPECIFICATION CS 23 SHALL BE COMPACTED BY HAND TAMPING OR MANUALLY DIRECTED POWER TAMPERS, PLATE VIBRATORS, WALK-BEHIND, MINIATURE OR SELF-PROPELLED ROLLERS. STRUCTURE BACKFILL MATERIAL SHALL BE COMPACTED TO AT LEAST 95 PERCENT OF MAXIMUM DRY DENSITY.

MOISTURE CONTENT AT THE TIME OF COMPACTION SHALL BE WITHIN A RANGE FROM 2 PERCENT BELOW OPTIMUM TO 2 PERCENT ABOVE OPTIMUM. THE MAXIMUM DENSITY AND OPTIMUM MOISTURE CONTENT SHALL BE DETERMINED BY ASTM D-698.

D. THE MAXIMUM LAYER THICKNESS, BEFORE COMPACTION, SHALL BE 4 INCHES. THE MAXIMUM SIZE ROCK PARTICLE SIZE INCORPORATED IN STRUCTUE BACKFILL PRIOR TO COMPACTION SHALL BE 2 INCHES. ALL ROCK PARTICLES LARGER

THAN 2 INCHES SHALL BE REMOVED.

REMOVAL OF WATER NOTES:

1. DIVERSION OF WATER WILL BE NEEDED TO FACILITATE DEWATERING THE PRINCIPAL SPILLWAY CONDUIT TO REPAIR THE DETERIORATED JOINT SEALER ALONG THE INTERIOR OF THE PRINCIPAL SPILLWAY CONDUIT AND INTERIOR OF THE RISER STRUCTURE. REFER TO SPECIFICATION CS 11 FOR DETAILS AND SUBMISSION

REQUIREMENTS. JOINT REPAIR DETAILS ARE SHOWN ON SHEET 16.

2. IN ORDER TO FACILITATE DEWATERING OF THE PRINCIPAL SPILLWAY CONDUIT, DIVERSION OF WATER FEATURES WILL BE NEEDED AT THE UPSTREAM SIDE TO DIVERT RESERVOIR INFLOW, AND AT THE DOWNSTREAM SIDE TO

DIVERT TAILWATER.

3. COFFERDAM AND BULKHEAD OPTIONS SHOWN ON THE DRAWINGS ARE FOR ILLUSTRATIVE PURPOSES ONLY, AND DO NOT SUGGEST, GUARANTEE, OR OTHERWISE INDICATE ANY LEVEL OF PROTECTION. REFER TO SPECIFICATION

CS 11 FOR DETAILED REQUIREMENTS.

4. REFER TO SPECIFICATION CS 11 FOR DETAILS AND SUBMISSION REQUIREMENTS FOR DEWATERING OF THE

PRINCIPAL SPILLWAY CONDUIT AND EXCAVATION AREA FOR THE CONCRETE CREST WALL.

5. TEMPORARY DIVERSION SYSTEM SHALL DISCHARGE WITHIN THE DOWNSTREAM SIDE OF THE EXISTING SPILLWAY STRUCTURE. SEE SHEET 22 FOR SUGGESTED SUMP INLET AND DISCHARGE OUTLET CONFIGURATIONS.

FILLED BURLAP

EARTH OR SAND

FLOWWORK AREA

FLEXIBLE MEMBRANE TO

PREVENT WATER SEEPAGE

INTO WORK AREA

TOP ELEVATION

ROCK FILL COFFERDAM OPTION

SECTION VIEW

STEEL SUPPORT

FRAME FABRIC

MEMBRANE

SECTION VIEW

MANUFACTURED PORTABLE DAM OPTION

FLOW

WORK AREA

DEPTH VARIESCLEAN ROCK FILL

TOP WIDTH

IMPERMEABLE LINER TO PREVENT

WATER SEEPAGE INTO WORK AREA

(ANCHOR AT TOP AND BOTTOM

WITH SANDBAGS NOT SHOWN)

RESERVOIR BOTTOM

(ELEVATION VARIES)

WORK AREA

DEPTH

VARIES

(CONTRACTOR TO ESTABLISH)

SANDBAG COFFERDAM OPTION

SECTION VIEW

TOP ELEVATION

(CONTRACTOR TO ESTABLISH)

TOP ELEVATION

(CONTRACTOR TO ESTABLISH)

NOT TO SCALE

TEMPORARY DIVERSION OF WATER

SACKS (TYP.)

(SEE NOTE 3)

TWO BAG MINIMUM HEIGHT

ABOVE NORMAL BASE FLOW

AGGREGATE GRADATIONS

SIEVE SIZE

PERCENT PASSING

COARSE

DRAINFILL FINE DRAINFILL CRUSHER RUN

GRAVEL

NO. 57

AGGREGATE

76 MM (3") 100

38 mm (1-1/2") 70 TO 100 100

25 mm (1") 95 TO 100

19 mm (3/4") 50 TO 85

12.5 mm (1/2") 100 25 TO 60

9.5 mm (3/8") 85 TO 100 100

4.75 mm (No. 4) 10 TO 30 95 TO 100 30 TO 60 0 TO 10

2.36 mm (No. 8) 0 TO 10 0 TO 5

1.18 mm (No. 16) 45 TO 80

600 μm (No. 30)

300 μm (No. 50) 10 TO 30

150 μm (No. 100) 0 TO 10

74 μm (No. 200) 0 TO 3 0 TO 10

NOTES:

1. COARSE DRAINFILL AND FINE DRAINFILL SHALL MEET THE QUALITY REQUIREMENTS OF

MATERIAL SPECIFICATION 521.

2. CRUSHER RUN GRAVEL SHALL MEET THE QUALITY REQUIREMENTS OF COMMONWEALTH

OF MASSACHUSETTS DOT CONSTRUCTION SPECIFICATIONS SECTION M1.03.1

3. NO. 57 AGGREGATE SHALL MEET THE QUALITY REQUIREMENTS OF MATERIAL

SPECIFICATION 521.

CONSTRUCTION SEQUENCE NOTES:

THE CONSTRUCTION SEQUENCE SHOWN BELOW IS INTENDED TO GUIDE DEVELOPMENT OF THE CONTRACTOR'S CONSTRUCTION SCHEDULE. TASKS 1 THRU 4 ARE INDEPENDENT OF ONE ANOTHER AND CAN BE PERFORMED IN ANY SEQUENCE AS LONG AS REQUIRED EROSION AND SEDIMENT CONTROL FACILITIES ARE IN PLACE AND

MAINTAINED. ALSO REFER TO SEQUENCE OF OPERATIONS ON SHEET 21.

TASK 1 - PRINCIPAL SPILLWAY CONDUIT JOINT REPAIR.

A. INSTALL DEWATERING AND DIVERSION FACILITIES.

B. REPAIR JOINTS ALONG THE INTERIOR OF THE PRINCIPAL SPILLWAY CONDUIT AND RISER STRUCTURE

INTERIOR.

C. REMOVE DEWATERING AND DIVERSION FACILITIES.

TASK 2 - EARTHWORK

A. EXCAVATE AUXILIARY SPILLWAY APPROACH CHANNEL.

B. INSTALL GEOSYNTHETIC CLAY LINER AND OVERLYING FILL.

C. CONSTRUCT CREST WALL.

D. CLEARING AND GRUBBING AT LEFT ABUTMENT CREST.

E. REGRADE TOP OF DAM

TASK 3 - WORK AT RIGHT ABUTMENT

A. CLEARING AND CUTTING STUMPS ALONG UPSTREAM SLOPE.

B. REPAIR AND PERMANENTLY STABILIZE EROSION AT DOWNSTREAM SLOPE.

REMAINING TASKS:

A. REMAINING TASKS TO BE COMPLETED AFTER TASKS 1 THRU 3 ARE COMPLETED.

B. PLACE TOPSOIL AND PERMANENTLY STABILIZE.

C. INSTALL CHAIN-LINK FENCE.

D. REINSTALL GATES AND BOLLARDS.

E. REMOVE EROSION AND SEDIMENT CONTROLS.

GEOTEXTILE NOTES:

1. TYPE 1 GEOTEXTILE SHALL BE WOVEN OR NONWOVEN AND SHALL MEET THE

REQUIREMENTS OF MATERIAL SPECIFICATION 592 - GEOTEXTILE, TABLE 1 OR TABLE 2 FOR

CLASS I GEOTEXTILES. THE APPARENT OPENING SIZE (AOS) OF THE GEOTEXTILE SHALL BE

WITHIN A RANGE OF A MAXIMUM OF #40 TO A MINIMUM OF #70 (U.S. STANDARD SIEVE SIZE.

GEOTEXTILE

FLOW

TEMPORARY BULKHEAD OPTION

TEMPORARY BULKHEAD OPTION

SECTION VIEW

RISER DETAIL COPIED FROM HISTORIC DRAWINGS AND

SHOWN FOR SCHEMATIC PURPOSES ONLY. ELEVATIONS

INDICATED ON THE DETAIL MAY NOT MATCH PROJECT

DATUM AND SHALL BE CONFIRMED BY THE CONTRACTOR

PRIOR TO BULKHEAD INSTALLATION.

TR3

0+00 D 1+00 D

2+00 D 3+00 D

4+00 D 5+00 D

6+00 D 7+00 D

8+00 D 9+00 D

10+00 D 11+00 D 12+00 D 13+00 D 14+00 D 15+00 D 16+00 D 17+00 D17+00 D

BM1TR2 TR1

TR4

2+

A

SW

0+

A

SW

1+

A

SW

2+

A

SW

SCALE IN FEET

-0- 160

LIMIT OF DETAILED SURVEY

EX

IS

TI

N

G S

IT

E

PL

AN

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\E xi st in g Si te P la n.

dw g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

0/

/2

1:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

4 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

NOTE:

1. SEE SHEETS 5 AND 6 FOR ADDITIONAL EXISTING

FEATURES NOT SHOWN ON THIS SHEET.

2. UPLAND AREAS WITHIN THE PROJECT LIMIT OF WORK ARE

WITHIN THE 100-FOOT BUFFER ZONE TO BORDERING

VEGETATED WETLANDS.

3. SEE SHEET 7 FOR LIMIT OF WORK AND ASSOCIATED LAYOUT

INFORMATION.

SEE SHEET 5 AND 8.

SEE SHEET 6 AND 9.WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

BORDERING AREA

SUBJECT TO FLOODING

EL. 217.2'

BORDERING LAND

SUBJECT TO FLOODING

200' RIVERFRONT AREA

200' RIVERFRONT AREA

100' BUFFER ZONE

100' BUFFER ZONE

100' BUFFER ZONE

30' WETLAND SETBACK (LOCAL)

TR4

0+00 D

1+00 D

2+00 D

3+00 D

4+00 D

5+00 D

6+00 D

7+00 D

8+00 D

SCALE IN FEET

-0- 4040 80

LIMIT OF DETAILED SURVEY

SEE REQUIRED FILL

SHEETS 8 AND 9

PL

AN

O F

EX

IS

TI

N

G D

AM

SH

EE

T

O F

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\P la n of

E xi st in g D am .d w g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

0/

/2

1:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

5 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

M

AT

C H

LI

N

E, S

EE

S

H

EE

T

BM1TR2 TR1

9+00 D

10+00 D 11+00 D 12+00 D 13+00 D 14+00 D 15+00 D 16+00 D 17+00 D17+00 D

SCALE IN FEET

-0- 4040 80

LIMIT OF DETAILED SURVEY

PL

AN

O F

EX

IS

TI

N

G D

AM

SH

EE

T

O F

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\P la n of

E xi st in g D am .d w g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

0/

/2

1:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

6 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

M

AT

C H

LI

N

E, S

EE

S

H

EE

T

SEE REQUIRED FILL

SHEET 8 AND 9

FL

O

W

LC

LC

LC

LC

1+26 CW

0+00 CW

1+00 CW

0+

A

SW

1+

A

SW

2+

A

SW

2+

A

SW

TR3

TR2

TR1

TR4

0+00 D 1+00 D

2+00 D 3+00 D

4+00 D 5+00 D

6+00 D 7+00 D

8+00 D 9+00 D

10+00 D 11+00 D 12+00 D 13+00 D 14+00 D 15+00 D 16+00 D 17+00 D17+00 D

BM1

2+

A

SW

0+

A

SW

1+

A

SW

2+

A

SW

17+00 D

0+00 D 1+00 D

2+00 D 3+00 D

4+00 D 5+00 D

6+00 D 7+00 D

8+00 D 9+00 D

10+00 D 11+00 D 12+00 D 13+00 D 14+00 D 15+00 D 16+00 D 17+00 D

L1

L2

L3 L4

L5L6

L7

L8

L9 L10

L11 L12

L13

L14

L15 L16

L17 L18

L19

L20

L21 L22

L23 L24

L25

L26

L27

L29

L30

L31 L32

L28

SCALE IN FEET

-0- 160

HORIZONTAL AND VERTICAL SURVEY CONTROL POINTS

POINT ID NORTHING (FT.) EASTING (FT.) ELEVATION (FT.) DESCRIPTION

TR-1 2,951,199.76 625,559.01 243.72 IRON PIN W/CAP

TR-2 2,951,030.46 625,241.41 243.73 IRON PIN W/CAP

TR-3 2,950,850.58 624,807.16 241.22 IRON PIN W/CAP

TR-4 2,950,682.05 624,310.43 240.84 IRON PIN W/CAP

BM1* 2,951,054 625,287 242.03 SQ CUT ON UPPER LEFT

SPILLWAY WALL

REFERENCE TIE FOR SURVEY CONTROL

NOT TO SCALE

TR-4

DAM BASELINE

BOLLARDSTOP OF DAM

7+00D

TR-3

ROBIN HILL STREET

8.10'

8.15'

DAM BASELINE

GUIDE RAIL

TOP OF DAM

EXISTING BOLLARDS GUIDE RAIL

12.12'2.72'

TR-1

7.92'

10.13'

DAM BASELINE

GATE POST

FENCE

TR-2

SIDEWALL OF

SPILLWAY SIDEWALL OF

SPILLWAY

GATE POST

DAM BASELINE

13.47'

12.47'

BM-1

FENCE

* FOR LOCATION PURPOSES ONLY. NOT FOR HORIZONTAL CONTROL.

LIMIT OF DETAILED SURVEY

SU

R

VE

Y

C O

N

TR

O L

AN

D

S

IT

E

LA

YO

U

T

PL

AN

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\L ay ou t P la n of D am

S pi llw ay

.d w g Pl ot te d By

: M ille r, Br ia n

S.

, P lo t D at e:

/1

0/

1:

A M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

7 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

DAM

AUXILIARY SPILLWAY

CREST WALL

ROBIN HILL ST

PO

N

D

VIEW

D R

IVE

LIMIT OF WORK

L1

L9

L2

L3

L4

L5

L6

L7

L8

L10

L11

L12

L13

L14

L15

L16

L17

L18

L19

L20

L21

L22

L23

L24

L25

L26

L27

L28

L29

L30

L31

L32

LIMIT OF WORK POINT TABLE CONT.

POINT # NORTHING EASTING

LIMIT OF WORK POINT TABLE

POINT # NORTHING EASTING

2950611.25

2950668.13

624204.15

624191.55

2950847.23 2951077.70

2950843.07

2950811.47

2950754.09

2950445.15

2950790.01

2950865.55

2950897.34

2951019.03

2951047.38

2951131.33

2951148.87

2951130.32

624712.77 625598.98

624740.92

624719.32

624622.55

624445.89

624737.00

624791.15

624834.24

625180.72

625235.77

625192.53

625199.15

625252.01

2951252.79

2951305.24

2951302.66

2951266.89

2951181.75

2951126.79

2951097.65

2951079.79

2950995.59

2950970.04

2950930.70

2950961.62

2950930.53

2950815.78

2950772.35

2950923.68

625481.67

625499.94

625508.00

625575.56

625631.90

625603.00

625593.80

625548.97

625411.71

625442.86

625431.26

625347.12

625119.40

624798.46

624762.41

625392.88

0+00 D

1+00 D

2+00 D

3+00 D

4+00 D

5+00 D

6+00 D

7+00 D

8+00 D

SCALE IN FEET

-0- 4040 80

LIMIT OF DETAILED SURVEY

REMOVE AND REINSTALL EXISTING VEHICULAR GATES

REMOVE AND REINSTALL EXISTING METAL BOLLARDS,

SEE BOLLARD AND VEHICULAR GATE NOTES,

THIS SHEET

DAM CREST

SEE DETAIL SHEET 10

(TYP)

PL

AN

O F

D

AM

SH

EE

T

O

F

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\P ro po se d Pl an .d w g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

/2 9/

2:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

8 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

M

AT

C H

LI

N

E, S

EE

S

H

EE

T

LEFT ABUTMENT

DAM EMBANKMENT

SLOPE 2H:1V

SLOPE 2H:1V

CONCRETE CREST WALL

SEE SHEETS 13 AND 14 FOR

DETAILS

DAM EMBANKMENT

STAGING AREA

SEE DETAIL SHEET 21

LIMIT OF WORK

LIMIT OF WORK

SPOIL PILE

TOP EL. 243.0'

SLOPE

3H:1V

SLOPE DAM CREST FILL

TO MEET EXISTING GRADE

TYP, SEE SHEET 13

PERMANENT ROCK

CONSTRUCTION ENTRANCE

SEE DETAIL SHEET 21

PERMANENT ROCK

CONSTRUCTION ENTRANCE

SEE DETAIL SHEET 21

APPROVED EARTHFILL AND TOPSOIL AND SEED - SEE TYPICAL DETAIL

SHEET 10

WETLANDS

REPLACE W / NEW WOODEN BOLLARDS,

SEE BOLLARD AND VEHICULAR GATE NOTES,

THIS SHEET

BOLLARD AND VEHICULAR GATE NOTES:

1. BEFORE REMOVAL OF BOLLARDS (METAL AND WOODEN) AND VEHICULAR GATES,

THE CONTRACTOR SHALL FIELD SURVEY AND DOCUMENT THE NORTHING AND

EASTING COORDINATE LOCATION OF EACH BOLLARD REFERENCED TO PROJECT

HORIZONTAL CONTROL AND REINSTALL IN THE SAME LOCATION.

2. TAKE CARE IN REMOVING METAL BOLLARDS AND VEHICULAR GATES TO AVOID

DAMAGE. METAL BOLLARDS AND VEHICULAR GATES WILL BE REMOVED AND

NEATLY STORED ONSITE FOR REINSTALLATION. STORE METAL BOLLARDS AND

VEHICULAR GATES OFF THE GROUND AND IN A MANNER TO AVOID DAMAGE,

DETERIORATION, AND ENVIRONMENTAL EXPOSURE. REPAIRS TO DAMAGE

CAUSED TO BOLLARDS AND VEHICULAR GATES DURING REMOVAL WILL BE THE

RESPONSIBILITY OF THE CONTRACTOR AT NO ADDITIONAL TIME OR

COMPENSATION TO THE CONTRACTOR. ALL REPAIRS SHALL BE APPROVED BY

THE COR PRIOR TO COMMENCEMENT.

3. IF METAL BOLLARDS AND VEHICULAR GATES (STRUCTURES) ARE DETERMINED BY

THE CONTRACTOR TO HAVE BEEN INSTALLED WITH CONCRETE FOOTINGS AND

THE CONCRETE IS BONDED TO THE STRUCTURES, THEN CAREFULLY REMOVE

THE CONCRETE FOOTINGS FROM THE STRUCTURES TO AVOID DAMAGING THE

STRUCTURES. REINSTALL METAL BOLLARDS AND VEHICULAR GATES WITH NEW

CONCRETE FOOTINGS TO THE DIMENSIONS OF THE EXISTING FOOTINGS. USE

BACKFILL CONCRETE TO REINSTALL METAL BOLLARDS AND VEHICULAR GATES.

4. AFTER METAL BOLLARDS AND VEHICULAR GATES ARE REINSTALLED, PAINT THEM

WITH AN EXTERIOR WATERPROOFING PAINT. LOXON XP BY SHERWIN WILLIAMS

OR AN APPROVED EQUAL. PAINT COLOR TO MATCH EXISTING COLOR. SUBMIT

PAINT TO COR FOR APPROVAL.

5. REMOVE AND DISPOSE OFF-SITE THE EXISTING WOODEN BOLLARDS. REPLACE

REMOVED WOODEN BOLLARDS WITH NEW WOODEN BOLLARDS AT THE SAME

LOCATION. NEW WOODEN BOLLARDS TO MATCH THE DIMENSIONS OF EXISTING

BOLLARDS. WOODEN BOLLARDS WILL BE MADE OF PRESSURE TREATED LUMBER.

SUBMIT WOODEN BOLLARDS TO COR FOR APPROVAL.

25' CLEARING

AND GRUBBING LIMIT

SEE SHEET 13 FOR ENLARGED VIEW

TR3

TR4

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

21021021

BM1

WOODS

WOODS

WOODS

225225

230 23

230 23 0 23

2+

A

SW

0+

A

SW

1+

A

SW

2+

A

SW

17+00 D

9+00 D

10+00 D 11+00 D 12+00 D 13+00 D 14+00 D 15+00 D 16+00 D 17+00 D

SCALE IN FEET

-0- 4040 80

ROBIN HILL ST.

LIMIT OF DETAILED SURVEY

BUILDING (TYP)

PO

N

D

VIEW

D R

RISER STRUCTURE

SPILLWAY

STRUCTURE

STORM DRAIN HEADWALL

12" RCP DRAIN PIPE

INLET INVERT EL. 216.42

OUTLET INVERT EL. 216.16

12" RCP DRAIN PIPE

INLET INVERT EL. 216.10

12" CMP DRAIN PIPE

INLET INVERT EL. 226.74

OUTLET INVERT EL. 216.10

12" CMP DRAIN PIPE

INLET INVERT EL. 227.73

OUTLET INVERT EL. 227.01

PL

AN

O F

D

AM

SH

EE

T

O

F

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\P ro po se d Pl an .d w g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

/1 4/

:2

PM

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

9 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

M

AT

C H

LI

N

E, S

EE

S

H

EE

T

SLOPE 2H:1V

SLOPE 2H:1V

EL. 227.97'

LIMIT OF WORK

SLOPE

3H:1V

SLOPE

3H:1V

DAM

AUXILIARY

SPILLWAY

PRINCIPAL SPILLWAY CONDUIT

9' WIDE BY 7' HIGH

A

A

ERODED AREAS UPSTREAM OF DAM

BASELINE. PLACE TOPSOIL AND GRADE

TO MATCH ADJOINING EXISTING GRADE

SURFACE AND SEED.

SL

O

PE

2%

CLEAR TREES WITHIN 20' OF

THE DAM EMBANKMENT -

ABUTMENT CONTACT

FOUNDATION DRAIN ℄

FL

O

W

B

B

EXISTING CHAIN-LINK FENCE

TO BE REMOVED

CHAIN LINK FENCE

SEE SHEET 15

SEE SHEET 11 FOR

SPILLWAY APPROACH

CHANNEL MODIFICATIONS

APPROVED EARTHFILL AND TOPSOIL AND SEED - SEE TYPICAL DETAIL

SHEET 10

WETLANDS

CONCRETE, RIPRAP AND

BEDDING NOT SHOWN.

TO BE REMOVED.

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

WETLAND EXTENDS

BEYOND STUDY AREA

LIMIT OF GCL LINER

EL

EV

AT

IO

N

(F

EE

T)

0102030405060708090100110120130140 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140

3.5

14'

CREST EL. 241.8 FT.

SEE TYPICAL DAM CREST DETAIL THIS SHEET

TEMPORARY ACCESS ROAD, SEE

DETAIL AND NOTES THIS SHEET

UPSTREAM DOWNSTREAM

FINISHED GRADE

4.29% 4.29%

EL. 241.8 FT

EL. 241.5 FTEL. 241.5 FT

6"

6" TOPSOIL & SEED

3.5

14'

7'

APPROVED EARTHFILL

STRIP TOPSOIL 6"

12.7'

4' MAX

SCALE IN FEET

-0- 1010 20

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\T yp

E m ba nk m en t S ec tio n.

dw g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

0/

/2

1:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

10 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

D

AM

E M

BA

N

KM

EN

T

SE

C

TI

O N

TYPICAL PROPOSED DAM CREST DETAIL

TYPICAL DAM EMBANKMENT SECTION

APPROVED EARTHFILL

DAM

DAM

TEMPORARY ACCESS ROAD DETAIL

N.T.S.

TEMPORARY ACCESS ROAD NOTES:

1. STRIP TOPSOIL BEFORE EXCAVATING FOR TEMPORARY ACCESS ROAD.

2. UTILIZE EXISTING APPROVED FILL (I.E. DAM EMBANKMENT MATERIAL) TO

CONSTRUCTION TEMPORARY ACCESS ROAD.

3. AVOID CONTAMINATION OF APPROVED FILL USED FOR TEMPORARY ACCESS

ROAD. RESTORE DAM EMBANKMENT TO EXISTING LINES, GRADES, AND

VEGETATION CONDITION USING SAME APPROVED FILL MATERIAL. APPROVED FILL

MATERIAL WILL BE APPROVED BY COR FOR REUSE TO RESTORE DAM EMBANKMENT.

TEMPORARY

ACCESS ROAD

4% (TYP) 4% (TYP)

LEGEND

APPROVED EARTHFILL

AT

IO

N (F

EE

T)

0102030405060708090100110120130140 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140

1.5

FLOW

EL. 227.97'

2% SLOPE

1:1 TYP

40'

1'

EL. 230.47

GCL, SEE DETAIL SHEET 12

CONCRETE SLAB AND KEY

TO BE REMOVED

FL

O

W

TO BE REMOVED

SCALE IN FEET

-0- 1010 20

SPILLWAY SECTION

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\S pi llw ay

S ec tio n.

dw g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

0/

/2

2:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

11 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

AU

XI

LI

AR

Y

SP

IL

LW

AY

A

PP

R

O

AC

H C

H

AN

N

EL

M O

D

IF

IC

AT

IO

N

S

DAM

A

PLAN VIEW

ASBESTOS CEMENT DRAIN PIPE AND

CONCRETE SLAB REMOVAL LIMITS

N.T.S.

DEMOLITION NOTES:

1. PRIOR TO COMMENCING DEMOLITION ACTIVITIES, CONTRACTOR AND COR WILL VISUALLY INSPECT AND

IDENTIFY FOR PAYMENT EXISTING DAMAGED LOCATIONS ALONG THE SPILLWAY HEADWALL.

2. DAMAGE TO SPILLWAY HEADWALL CAUSED BY CONTRACTOR DURING DEMOLITION ACTIVITIES WILL BE THE RESPONSIBILITY OF THE CONTRACTOR AND WILL BE REPAIRED TO THE SATISFACTION OF THE COR AT NO

ADDITIONAL EXPENSE TO THE NRCS.

3. SAW CUT EXISTING REINFORCING STEEL AND EXISTING WATERSTOP CONNECTING THE SPILLWAY HEADWALL TO THE CONCRETE SLAB FLUSH WITH THE BACK FACE OF THE SPILLWAY HEADWALL. REMOVE REMAINING WATERSTOP IN THE HEADWALL TO A MINIMUM DISTANCE OF 1/2- INCH FROM THE FACE OF THE WALL.

4. DEMOLISH CONCRETE SLAB. CONTRACTOR MAY SPOIL DEMOLISHED CONCRETE SLABS ON-SITE IF REINFORCING AND WATERSTOP MATERIALS ARE REMOVED FROM DEMOLISHED CONCRETE SLABS. IF CONTRACTOR ELECTS NOT TO REMOVE REINFORCING AND WATERSTOP MATERIAL FROM DEMOLISHED CONCRETE SLABS, DEMOLISHED CONCRETE SLABS SHALL BE REMOVED AND DISPOSED OF OFF-SITE BY THE

CONTRACTOR IN A LAWFUL MANNER.

5. APPLY A MINIMUM OF TWO COATS OF SIKAGARD 62, OR APPROVED EQUAL, TO EXPOSED REINFORCING

ALONG THE BACK SIDE OF THE SPILLWAY HEADWALL IN ACCORDANCE WITH MANUFACTURER'S

RECOMMENDATIONS TO PROTECT THE REINFORCING FROM AIR AND WATER. PREPARE STEEL AND

CONCRETE SURFACE IN ACCORDANCE WITH MANUFACTURER'S REQUIREMENTS. APPLY PRODUCT BEYOND REINFORCING EXTENTS AND ONTO CONCRETE TO ENSURE EXPOSED REINFORCING IS FULLY COATED.

6. EXCAVATE BEDDING MATERIAL AND SPOIL ON-SITE AT DESIGNATED SPOIL AREA.

7. EXCAVATE, CLEAN, AND PLACE RIPRAP NEATLY AND EVENLY BEHIND THE LEFT AND RIGHT SPILLWAY TRAINING WALLS NEAR THE NORMAL TAILWATER SURFACE ELEVATION WHERE EXISTING RIPRAP IS SPARSE.

8. REMOVE AND DISPOSE OF OFF-SITE IN A LAWFUL MANNER THE 4-INCH ASBESTOS CEMENT DRAIN PIPE LOCATED BEHIND THE SPILLWAY HEADWALL IN ACCORDANCE WITH MASS DEP AND LOCAL RULES AND REGULATIONS. SEVER THE 4-INCH ASBESTOS CEMENT DRAIN PIPE A MINIMUM DISTANCE OF 1-INCH INSIDE THE WALL PENETRATION AS MEASURED FROM THE UPSTREAM SIDE OF THE SPILLWAY HEADWALL AND FILL THE INTERIOR OF THE PIPE WITH MORTAR PER CS35. ENSURE THE ABANDONED ASBESTOS CEMENT DRAIN PIPE LEFT BEHIND IN THE SPILLWAY HEADWALL IS COMPLETELY FILLED AND ENCAPSULATED WITH MORTAR.

FINISH MORTAR SURFACES IN ACCORDANCE WITH CS31. COMPLETELY FILL THE WALL PENETRATION WITH MORTAR AND FINISH THE MORTAR SURFACE FLUSH WITH UPSTREAM AND DOWNSTREAM FACE OF THE

HEADWALL.

SEE APPROACH CHANNEL

DETAIL THIS SHEET

TO BE REMOVED

TO BE REMOVED

TO BE REMOVED

17"

EL. 227.8

WATERSTOP

GCL, SEE DETAIL

SHEET 12

APPROACH CHANNEL DETAIL

FINISHED GRADE

REMOVE RIPRAP BELOW GCL,

BACKFILL BELOW GCL WITH

STRUCTURE BACKFILL

TYPICAL SECTION

REMOVE DRAIN PIPE,

1" MIN. INTO HEADWALL

DRAIN PIPE TO REMAIN,

ABANDON DRAIN PIPE WALL

PENETRATION, SEE DEMOLITION

NOTE 8

SCALE IN FEET

-0- 22 4

B

B

C

C

C

FLOW

SAWCUT, SEE DEMOLITION NOTES,

THIS SHEET

2% SLOPE

STRIP TOPSOIL 6"

EL. 230.47

B

DAM

FINISHED GRADE

EL. 227.97

1.5'

AT

IO

N (F

EE

T)

EL

EV

AT

IO

N (F

EE

T)

PROFILE OF ASW

ST

A.

2+

D

12+00D 12+50D 13+00D 13+50D 14+00D 14+50D 15+00D 15+50D

3H:1V

TYP

TO BE REMOVED

TYP

BOTTOM OF

EXCAVATION TYP FINISHED GRADEGCL, SEE GCL DETAIL THIS SHEET

APPROVED EARTHFILL

AND STRUCTURE BACKFILL,

LIMITS DEFINED BY CS 23

1H:1V

TYP

ST

A.

5+

D

4"

6"

12"

4"

2% SLOPE

6" TOPSOIL

AND SEED

1H:1V

FLOW

BOTTOM OF

EXCAVATION

GRANULAR BENTONITE,

SEE GCL INSTALLATION

NOTES THIS SHEET

GCL

TYPE 304 S.S. 3 12" CONCRETE

ANCHORS @ 12" C.C. STARTING

1" FROM END OF BATTEN BAR

BENTONITE SEALING COMPOUND,

SEE GCL INSTALLATION

NOTES THIS SHEET

APPROVED EARTHFILL

AND STRUCTURE BACKFILL,

LIMITS DEFINED BY CS 23

3"X1" (NOMINAL) BATTEN BAR (PLASTIC)

EL. 227.97FINISHED GRADE

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\S pi llw ay

S ec tio n.

dw g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

0/

/2

2:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

12 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

AU

XI

LI

AR

Y

SP

IL

LW

AY

G

C L

LI

N

ER

D

ET

AI

LS

SCALE IN FEET

-0- 2020 40

GEOSYNTHETIC CLAY LINER (GCL) DETAIL

N.T.S.

GCL INSTALLATION NOTES:

1. CAUTION - SEE CS 98 FOR PROVISIONS REGARDING MINIMUM REQUIRED LIMITS OF EARTHFILL BETWEEN EQUIPMENT AND GCL. ALSO COMPLY WITH

MANUFACTURER'S RECOMMENDATIONS.

2. DAMAGE TO THE SPILLWAY HEADWALL CAUSED BY THE CONTRACTOR DURING INSTALLATION OF THE GCL WILL BE THE RESPONSIBILITY OF THE CONTRACTOR AT NO ADDITIONAL EXPENSE TO THE NRCS AND WILL BE REPAIRED TO THE SATISFACTION OF THE COR.

3. EXTEND GCL JUST ABOVE THE BATTEN BAR AND PROVIDE A CONTINUOUS SEAL USING A BENTONITE SEALING COMPOUND ALONG EXTERIOR EDGES OF GCL IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATION. ENSURE BENTONITE SEALING COMPOUND IS INSTALLED WHERE GCL IS IN CONTACT WITH CONCRETE

SURFACES AND AT LOCATIONS WHERE CONCRETE ANCHORS WILL BE INSTALLED.

4. GRANULAR BENTONITE APPLICATION RATE AS SPECIFIED IN CS98.

5. SEE SHEET 11 FOR ADDITIONAL DETAILS

ELEVATION VIEW

B

STRIP TOPSOIL 6"

ASW SECTION

WOODS

40' 60'

6+00 D

7+00 D

8+00 D

C O

N C

R

ET

E C

R

ES

T W

AL

L

PL

AN

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\P ro po se d Pl an .d w g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

/1 4/

:2

AM

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

13 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

SCALE IN FEET

-0- 1010 20

A

A

DAM CREST

SEE DETAIL SHEET 10

(TYP)

DAM

ROBIN HILL STREET

12" CMP DRAIN PIPE

INLET INVERT EL. 241.77

OUTLET INVERT EL. 214.56

CONCRETE CREST WALL

TOP EL. 241.8

SEE SHEET 14

STORM DRAIN HEADWALL

REMOVE AND REINSTALL EXISTING GATES

REMOVE AND REPLACE EXISTING BOLLARDS

(TYP) SEE NOTES SHEET 8

SLOPE 2H:1V

ROBIN HILL ST.

RIGHT-OF-WAY

LIMIT OF WORK

SLOPE DAM CREST FILL

TO MEET EXISTING GRADE

SLOPE 2H:1V

PERMANENT ROCK CONSTRUCTION

ENTRANCE, SEE ROCK CONSTRUCTION

ENTRANCE NOTES SHEET 21

PERMANENT ROCK

CONSTRUCTION ENTRANCE

SEE DETAIL SHEET 21

LIMIT OF WORK

SLOPE 2H:1V

SLOPE 2H:1V

14'

TOE DRAIN PIPE

EL. 241.8'

WARP

SLOPE

REMOVE ROCK CONSTRUCTION ENTRANCE

TO PERMIT PLACEMENT OF APPROVED FILL,

SEE ROCK CONSTRUCTION NOTES, SHEET 21

REMOVE ROCK CONSTRUCTION ENTRANCE

TO PERMIT PLACEMENT OF APPROVED FILL,

SEE DETAIL SHEET 21

APPROVED EARTHFILL AND TOPSOIL AND SEED - SEE TYPICAL DETAIL

SHEET 10

1+13.77 CW

0+13.77 CW

7+53.63 D7+43.72 D

LEGEND

AT

IO

N (F

EE

T)

EL

EV

AT

IO

N (F

EE

T)

0+00 0+20 0+40 0+60 0+80 1+00 1+20 1+26

10' 30' 30' 30'

ST

A.

+1

3.

ST

A.

+7

3.

ST

A.

+1

3.

EL. 236.5'

EL. 236.5'

" S

PL

IC

E (T

YP

3" CLR (TYP)

3" CLR (TYP)

#5 @ 12(TYP)

3/4" x 3/4" CHAMFERS

AT EXPOSED EDGES (TYP)

1'

EL. 241.8'

#5 @ 6(TYP)

#5 @ 12(TYP)

STRUCTURE BACKFILL

(TYP)

UNDISTURBED SUBRADE

CONSTRUCTION JOINT

10" HOOK (TYP)

DOWNSTREAM SIDE

UPSTREAM SIDE

6" PVC WATERSTOP

14"

3'

DOWELED CONTRACTION JOINT IN WALL

NOT TO SCALE

ONE HALF OF BAR RIGIDLY

ENCASED IN CONCRETE

UPSTREAM FACE9" PVC WATERSTOP

1' -2

PLASTIC SLEEVE

1" DIA. SMOOTH DOWEL BAR

BAR X 24" LG. @ 24" C/C

DOWNSTREAM FACE

5" 3"

1'-0"

REINFORCEMENT AS REQUIRED (TYP.)

6"

C O

N C

R

ET

E C

R

ES

T W

AL

L

D

ET

AI

LS

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\P ro po se d Pl an .d w g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

0/

/2

1:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

14 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

SCALE IN FEET

-0- 55 10

PROFILE ALONG NORTH (DOWNSTREAM) FACE OF CONCRETE CREST WALL

(LOOKING UPSTREAM)

CONCRETE CREST WALL NOTES:

1. EXCAVATION REQUIREMENTS ARE PROVIDED IN SPECIFICATION CS21.

2. BACKFILL CONCRETE CREST WALL EQUALLY, NOT EXCEEDING A MAXIMUM DIFFERENTIAL OF 1-FOOT ON EITHER

SIDE OF THE WALL.

3. PROVIDE CONSTRUCTION AND CONTRACTION JOINTS AT THE LOCATIONS SHOWN. CHANGES TO JOINTS AND

JOINT LOCATIONS MUST BE APPROVED IN WRITING BY THE COR.

4. ALL JOINTS REQUIRE WATERSTOPS.

5. CONSTRUCTION JOINTS ARE COLD JOINTS WITH REINFORCING CONTINUOUS THROUGH THE JOINT.

6. CONTRACTION JOINTS ARE DOWELED COLD JOINTS AND DO NOT HAVE CONTINUOUS REINFORCING THROUGH

THE JOINT.

7. CLASS OF CONCRETE AND OTHER DESIGN DETAILS ARE PROVIDED IN SPECIFICATION CS31.

TYPICAL CONCRETE CREST WALL SECTION

NOT TO SCALE

APPROXIMATE 31.03°

HORIZONTAL BEND

WATERSTOP NOTES:

1. WELD ALL PVC JOINTS PER MANUFACTURER'S INSTRUCTIONS. INSTALL ON CLEAN EXISTING CONCRETE

SURFACE.

2. APPLY A LAYER OF EPOXY GEL BETWEEN WATERSTOP AND CONCRETE SURFACE IN ACCORDANCE WITH

MANUFACTURER'S INSTRUCTIONS. APPLY NEOPRENE PAD OR CAULK PER MANUFACTURER'S

RECOMMENDATION WHERE CLEAN CONCRETE SURFACE IS UNEVEN. RECORD ALL VARIATION ON

AS-BUILT DRAWINGS.

3. FOR ALL WATERSTOP JUNCTIONS OR ABRUPT CHANGES IN DIRECTION PROVIDE MANUFACTURER'S PREFABRICATED TEE, Ls, CROSSES, ETC. AS APPLICABLE

TOP OF WALL EL. 241.8'

CONTRACTION JOINT (TYP)

GRADE TO EL. 241.8'

(TOP OF DAM)

EXTEND TO EL. 242'

DOWNSTREAM FINISHED

GRADE EL. 241.8'

(TOP OF DAM)

3 8"

8"

8"

Ø 78" ID & Ø 11

2" OD

9"

3 16

9" WATERSTOP DETAIL

NOT TO SCALE

9" PVC, RIBBER WATERSOP

WITH CENTER BULB,

GREENSTREAK 696, OR EQUAL

AND

FINISHED GRADE

FLOW

A

AND FINISHED GRADE

FINISHED GRADE EL. 240.5 (MIN.),

SEE PROFILE THIS SHEET

AND

FINISHED GRADE

UPSTREAM FINISHED

GRADE

EL. 240.5 (MIN.)

NOTE: SEE TYPICAL CONCRETE CREST WALL SECTION, THIS SHEET

ST

A.

+4

1.

ST

A.

+0

1.

TYPICAL FINISHED GRADING

STA. 0+27.77 TO 1+13.77

TYPICAL FINISHED GRADING

STA. 0+13.77 TO 0+27.77 CW.

SEE PLAN VIEW ON SHEET 13

SEE PROFILE

CHAIN-LINK FENCE DETAIL

NOT TO SCALE

1/

2" 8'-0"

VARIES 10'-0" MAX

VEE TYPE STEEL EXTENSION

ARMS @ 45° ANGLE

1 5/8" OD

PIPE

3/8" ROUND

ROD

3" OD CORNER

POST

2 1/2" OD

LINE POST

TOP OF CONCRETE

TENSION WIRE

7 GAUGE

DOUBLE LEAF SWING GATE DETAIL

NOT TO SCALE

10'-0"

BARBED WIRE (TYP)

1" MESH #9

GAUGE FENCING

FABRIC

LATCH ASSEMBLY

w/ KEEPER

5/8" DIA PLUNGER BAR

4" OD GATE

POST

8'-0" GATE FRAME

2" OD

BARBED WIRE (TYP)

THREE STRANDS EACH ARM

INSIDE AND OUTSIDE

1" MESH #9 GAUGE

FENCING FABRIC

CONCRETE CATCH FOR

PLUNGER BAR

CONCRETE

8"X8"X3/8" GALVANIZED

STEEL BRACKET

1/2" S.S. ADHESIVE ANCHORS

WITH 4" EMBEDMENT (TYP),

SEE CS 91

SURFACE MOUNTED FENCE POST DETAIL

NOT TO SCALE

1'-0"

1'-0"

CHAIN-LINK FENCE PLAN

SURFACE MOUNTED

FENCE POST (TYP.)

SEE DETAIL, THIS SHEET

4'-0"

CONCRETE WALL

DOUBLE FENCE BARRIER DETAIL

NOT TO SCALE

8'-0"

4'-0"

1'-0" DIA.

1/

2"

4" 3'

-0

NOTE: SET POST CENTERED IN FOOTING

FOOTING DOMED

TO SHED WATER

FINISHED GRADE

POST

FENCE POST IN SOIL DETAIL

NOT TO SCALE

SEE FENCE POST IN SOIL

DETAIL THIS SHEET (TYP.)

CONCRETE FOOTING

1" MESH #9 GAUGE

FENCING FABRIC

1 5 8" OD PIPE

3" OD CORNER POST

VERTICAL MOUNTED FENCE POST DETAIL

NOT TO SCALE

ADHESIVE MATERIAL (TYP),

SEE CS 91

ADHESIVE MATERIAL (TYP),

SEE CS 91

PIPE STRAP WELDED TO POST (TYP)

1/2" S.S. ADHESIVE ANCHORS

WITH 4" EMBEDMENT (TYP),

SEE CS 91

BM1TR2

TR1

12+00 D 13+00 D 14+00 D 15+00 D 16+00

2+

A

SW

1+

A

SW

2+

A

SW

F1

F2

F3 F4

F5 F6

F7 F8

F9 F10

C H

AI

N

-L

IN

K

FE

N C

E D

ET

AI

LS

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\M is ce lla ne ou s D et ai ls .d w g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

0/

/2

2:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

15 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

END OF

FENCE (TYP)

DOUBLE FENCE BARRIER,

6 FT ABOVE GROUND (TYP),

SEE DETAIL THIS SHEET

DOUBLE LEAF SWING GATE

SEE DETAIL THIS SHEET

LIMIT OF WORK

TO BE REMOVED

DOUBLE LEAF

SWING GATE,

SEE DETAIL

THIS SHEET

CHAIN-LINK FENCE NOTES:

1. REMOVE EXISTING CHAIN-LINK FENCING ALONG THE CONCRETE TRAINING WALLS

AND ALONG THE EARTHEN DAM EMBANKMENT. DISPOSE OF CHAIN-LINK FENCE

OFF-SITE. INCLUDING CONCRETE FOOTINGS LOCATED IN GROUND.

2. DAMAGE TO CONCRETE CAUSE BY CONTRACTOR DURING CHAIN-LINK FENCE

REMOVAL WILL BE THE RESPONSIBILITY OF THE CONTRACTOR AT NO

ADDITIONAL EXPENSE TO THE NRCS AND WILL BE REPAIRED TO THE

SATISFACTION OF THE COR.

3. PRIOR TO INSTALLATION OF NEW CHAIN-LINK FENCE, VOIDS IN CONCRETE LEFT

BEHIND FROM REMOVAL OF EXISTING CHAIN-LINK FENCE WILL BE CLEANED TO

REMOVE DEBRIS AND LOOSE MATERIAL AND WILL BE FILLED IN WITH MORTAR

PER CS 35. TOP OF MORTAR SURFACE WILL BE DOMED A MINIMUM OF 1/4-INCH

HIGH.

4. CHAIN-LINK FENCE POSTS, FRAMEWORK, FABRIC, AND FITTINGS WILL BE COATED

WITH A POLYMER TOP COATING PER CS 91. COLOR TO RESEMBLE FOREST

GREEN AND MATCH METAL BOLLARDS AND VEHICULAR GATES.

SCALE IN FEET

-0- 3030 60

5'

28'

FL

O

W

5' 5'

CHAIN LINK FENCE

SEE DETAILS

THIS SHEET

5'

5'

CHAIN LINK FENCE

MOUNTED ON

EMBANKMENT SIDE

VERTICAL FACE (TYP)

CHAIN LINK FENCE

MOUNTED ON

UPSTREAM SIDE

VERTICAL FACE (TYP)

37.08'

.1

.0

8'

POINT #

F9

F1

F2

F3

F4

F5

F6

F7

F8

F10

NORTHING

2951201.99

2951044.57

2951022.03

2950968.95

2950986.40

2951005.01

2951027.05

2951008.47

2951102.78

2951207.24

EASTING

625577.34

625268.45

625252.38

625323.85

625356.57

625346.64

625387.97

625397.90

625574.42

625574.05

FENCE CONTROL POINTS

TO BE REMOVED

TO BE REMOVED

TO BE REMOVED

TO BE REMOVED

POLYMER-MODIFIED MORTAR,

SEE CS 35

TO BE CLEANED AND COATED

WITH ANTI-CORROSION COMPOUND,

SEE CS 35

SAW CUT 1" MIN. DEEP.

SAW CUT ALL EDGES 1" MIN.

OUTSIDE DETERIORATED AREA

3" MIN.

1" MIN.

SEE JOINT REPAIR DETAILS,

THIS SHEET

3" MIN.

POLYMER-MODIFIED MORTAR,

SEE CS 35

TO BE CLEANED AND COATED

WITH ANTI-CORROSION COMPOUND,

SEE CS 35

SAW CUT 1" MIN. DEEP AND

PERPENDICULAR TO SURFACE.

SAW CUT ALL EDGES 1" MIN.

OUTSIDE DETERIORATED AREA

CONCRETE REMOVAL LIMIT,

SEE NOTES

1" MIN.

2" MIN.

PREFORMED EXPANSION JOINT FILLER,

SEE CS 35

M

IS

C

EL

LA

N

EO

U

S D

ET

AI

LS

D at e

C he ck ed

Ap pr ov ed

D ra w n

D es ig ne d

Sheet of

File No.

Drawing No.

Ap pr ov ed

Q :\E ar th

S ci en ce s C

BG

\D iv -4

-W \G

D H

\0

0-

Ty le r D am

\C

AD

D \D es ig n Se t\M is ce lla ne ou s D et ai ls .d w g

Pl ot te d

By : M ille r, Br ia n S.

, P lo t D at e:

0/

/2

2:

P

M

TY

LE

R D

AM

FL

O O

D W

AT

ER

R

ET

AR

D

IN

G

D

AM

TY

LE

R D

AM

R

EH

AB

IL

IT

AT

IO

N P

R O

JE

C

T M

ID

D

LE

SE

X C

O U

N

TY

, M

AS

SA

C

H U

SE

TT

S

16 25

EJ

B

/0

3/

EK

M

/0

3/

EE

F

/3

1/

/3

1/

D

M S

GRAFFITI REMOVAL

N.T.S.

GRAFFITI REMOVAL NOTES:

1. REMOVE GRAFFITI FROM EXTERIOR AND INTERIOR UNSUBMERGED CONCRETE SURFACES.

2. USE TAGINATOR GRAFFITI REMOVER FOR MASONRY AND CONCRETE SURFACES OR APPROVED EQUAL.

SUBMIT PRODUCT AND PROCEDURE TO COR FOR APPROVAL.

3. SPRAY ON PRODUCT ONTO GRAFFITI PER MANUFACTURER'S RECOMMENDATIONS AND USE A PRESSURE WASHER TO REMOVE GRAFFITI FROM CONCRETE SURFACES OR OTHERWISE EXECUTE GRAFFITI REMOVAL AS RECOMMENDED BY MANUFACTURER. PRESSURE WASHING SHALL NOT REMOVE EXISTING CEMENT MATRIX SURFACE MATERIAL. PERFORM GRAFFITI REMOVAL IN A SAMPLE AREA TO BE DESIGNATED BY COR AND DEMONSTRATE REMOVAL PROCEDURE TO THE SATISFACTION OF THE COR BEFORE BEGINNING

PRODUCTION CLEANING.

4. IF PROPOSING AN ALTERNATIVE PRODUCT, THE ALTERNATIVE PRODUCT AND PROCEDURE SHALL BE FREE OF AIR AND WATER POLLUTANTS, DOES NOT CONTAIN OTHER TOXIC SUBSTANCES, AND DOES NOT

REQUIRE DISCHARGE COLLECTION AND DISPOSAL.

5. PHOTOGRAPHS REPRESENT TYPICAL AREAS OF GRAFFITI AND NOT ALL GRAFFITI IS SHOWN.

SPILLWAY HEADWALL JOINT (TYPICAL) PRINCIPAL SPILLWAY CONDUIT JOINT (TYPICAL)

TRAINING WALL JOINT 1 OF 2 (TYPICAL) TRAINING WALL JOINT 2 OF 2 (TYPICAL) BUTTRESS WALL JOINT (TYPICAL)

SHALLOW JOINT REPAIR DETAIL

N.T.S.

DEEP JOINT REPAIR DETAIL

N.T.S.

JOINT REPAIR DETAILS

N.T.S.

CONCRETE SPALL REPAIR DETAIL

N.T.S.

CONCRETE SPALL REPAIR NOTES:

1. PRIOR TO DEMOLISHING THE SPILLWAY CONCRETE SLAB, THE CONTRACTOR AND COR SHALL DETERMINE CONCRETE

SPALL LOCATIONS AND THE EXTENTS TO BE REPAIRED.

2. REMOVE ALL DETERIORATED CONCRETE. REMOVE WATERSTOP. PREPARED EXISTING CONCRETE SURFACE TO BE

ROUGH-CLEAN SURFACE.

3. REMOVE CONCRETE TO SOUND SUBSTRATE, BUT NOT LESS THAN 3-INCHES BELOW EXISTING CONCRETE SURFACE.

4. FORMING MATERIALS, INSTALLATION, AND REMOVAL IN ACCORDANCE WITH SPECIFICATION CS 35.

5. FINISH REPAIRED SURFACE TEXTURE AND FINISH TO MATCH EXISTING, ADJACENT SURFACES.

CONCRETE SPALL AT JOINT REPAIR DETAIL

N.T.S.

PRIMER

JOINT SEALER

SHALLOW JOINT DEPTH

BOND

BREAKER TAPE

EXISTING EXPANSION

JOINT MATERIAL

OR

PREFORMED

EXPANSION

JOINT FILLER

3/4"

1/2" MAX.

JOINT SEALER

PRIMER

BOND

BREAKER TAPEEXISTING EXPANSION

JOINT MATERIAL

OR

PREFORMED

EXPANSION

JOINT FILLER

3/4"

DEEP JOINT

DEPTH

1/2" MAX.

JOINT REPAIR NOTES:

1. USE OF SHALLOW JOINT REPAIR DETAIL VERSUS DEEP JOINT REPAIR DETAIL IS DICTATED BY THE DEPTH OF JOINT SEALER AS RECOMMENDED BY MANUFACTURER, EXCEPT AS STATED IN NOTE 3.

2. REMOVE AND REPLACE DETERIORATED JOINT SEALER ALONG UNSUBMERGED JOINTS ALONG THE SPILLWAY TRAINING WALLS, BUTTRESS WALLS, AND SPILLWAY

HEADWALL.

3. REMOVE AND REPLACE DETERIORATED JOINT SEALER ALONG THE INTERIOR OF THE PRINCIPAL SPILLWAY CONDUIT AND RISER STRUCTURE. THE PRINCIPAL SPILLWAY CONDUIT AND RISER STRUCTURE SHALL BE DEWATERED BY THE CONTRACTOR CONTINUOUSLY DURING PERFORMANCE OF THE WORK. USE DEEP JOINT REPAIR DETAIL

FOR FLOOR JOINTS.

4. PRIOR TO COMMENCING WORK, THE CONTRACTOR AND COR WILL CONFIRM JOINTS AND EXTENTS WHERE DETERIORATED JOINT SEALER WILL BE REPLACED.

5. SUBMIT FOR THE COR'S APPROVAL A FALL PROTECTION PLAN. THE FALL PROTECTION PLAN SHALL IDENTIFY FALL PROTECTION MEASURES AND PROCEDURES THE CONTRACTOR SHALL IMPLEMENT WHEN WORKING ALONG THE TRAINING WALLS, BUTTRESS WALLS, AND SPILLWAY HEADWALL. THE FALL PROTECTION PLAN AT MINIMUM SHALL MEET THE REQUIREMENTS OF OSHA 29 CFR 1926 SUBPART M - FALL PROTECTION.

6. SUBMIT FOR THE COR'S APPROVAL A SURFACE WATER DIVERSION PLAN AS SPECIFIED IN CS11.

7. THE CONTRACTOR IS MADE AWARE THE INTERIORS OF THE…