S01 12FPC321R0016 Attachment 2 Plan Set 2 of 2.pdf

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Sheet of

File No.

Drawing No.

Ap pr ov ed

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C he ck ed

29 37

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DAM

LIMIT OF DETAILED

FIELD SURVEY

CONCRETE RISER STRUCTURE

30" DIA PRINCIPAL SPILLWAY CONDUIT

INLET INV. EL. 533.02

OUTLET INV. EL. 531.4

AUXILIARY SPILLWAY

CIP DRAIN PIPE

12" INLET INV. EL. 530.17

8" OUTLET INV. EL. 529.69

GRAVEL ACCESS ROAD

FL

O

W

190' AUXILIARY SPILLWAY CREST

SEE SHEET 11

RIPRAP SHEET PILE CUTOFF

WALL AND SILL

3H :1

V

3H :1

V

2.5H:1V 2.5H:1V

544.5

548.0 548.0

534.5536.5

530.5

LIMIT OF WORK

GRAVEL CONTRACTOR

STAGING AREA

(SEE DETAIL ON SHEET 31)

ACCESS/HAUL ROAD

(SEE DETAIL ON SHEET 32)

FB

TEMPORARY STREAM CROSSING

(SEE STREAM CROSSING NOTES ON SHEET 31)

12" COMPOST FILTER

SOCK (TYP.)

ROCK CONSTRUCTION ENTRANCE

WITH WASHRACK

(SEE DETAIL ON SHEET 31)

PUMP WATER FILTER BAG

(SEE DETAIL ON SHEET 32)

LIMIT OF WORK

LIMIT OF WORK

12" COMPOST FILTER SOCK

18" COMPOST FILTER SOCK

PROTECTIVE FENCE

PUMPED WATER FILTER BAG WITH

INTAKE/DISCHARGE HOSE

ACCESS/HAUL ROAD

ROCK CONSTRUCTION ENTRANCE

WITH WASHRACK

CONTRACTOR STAGING AREA

COFFERDAM

TEMPORARY WATERBAR

RIPRAP

TEMPORARY PUMPING DIVERSION

MINOR PROPOSED CONTOUR

MAJOR PROPOSED CONTOUR

SLOPE LINE

SOIL SERIES BOUNDARY

SOIL SERIES MAP UNIT

EROSION CONTROL LEGEND

RCE

PF

FB

PROSPECT DRIVE

TO DAM

GRAVEL ACCESS ROAD

LIMIT OF WORK

TO

PRO

SPECT

DRIVE

(SEE INSET)

PROTECTIVE FENCE

(SEE DETAIL ON SHEET 32)

10' WIDE ACCESS RAMP

SCALE IN FEET

-0- 3030 60

6A 30A

NOTES:

1. CONTRACTOR IS RESPONSIBLE FOR DETERMINING THE REQUIRED STABLE SLOPE

FOR EXCAVATION AND FILL AND FOR PROVIDING AND INSTALLING TEMPORARY

EXCAVATION SUPPORT AND SHORING WHEN NECESSARY.

2. CONTRACTOR IS RESPONSIBLE FOR SIZING THE DIVERSION OF WATER SYSTEM

INCLUDING THE COFFERDAM, TEMPORARY PUMPING DIVERSION, TEMPORARY

CONDUIT EXTENSION, AND TEMPORARY RIPRAP APRON.

3. ALL STAGING AREAS AND ASSOCIATED HAUL ROADS SHALL BE STABILIZED WITH A 8"

(MINIMUM) LAYER OF DENSE GRADED CRUSHED STONE FOR SUB-BASE

AGGREGATE. UNLESS STATED OTHERWISE, ALL AGGREGATE SHALL BE REMOVED

AT THE COMPLETION OF THE PROJECT, SAID AREAS SHALL BE BROUGHT TO FINAL

GRADE, AND PERMANENT VEGETATIVE STABILIZATION MEASURES SHALL BE

IMMEDIATELY INSTALLED.

4. UNTIL THE SITE IS PERMANENTLY STABILIZED, ALL EROSION CONTROL FACILITIES

SHALL BE PROPERLY MAINTAINED. MAINTENANCE SHALL INCLUDE INSPECTIONS OF

ALL FACILITIES AFTER EACH RAINFALL EVENT AND ON A WEEKLY BASIS. ALL

PREVENTIVE AND REMEDIAL MAINTENANCE WORK, INCLUDING CLEANING, REPAIR,

REPLACEMENT, REGRADING, RESEEDING, REMULCHING AND REANCHORING OF

SAID MULCH SHALL BE PERFORMED IMMEDIATELY. IF THE EROSION CONTROL

FACILITIES FAIL TO PERFORM AS EXPECTED, REPLACEMENT FACILITIES OR

MODIFICATIONS OF THE INSTALLED FACILITIES WILL BE REQUIRED AND SHALL BE

APPROVED BY THE COR.

5. REFER TO SHEET 31 FOR SOILS INFORMATION.

6. REFER TO SHEET 6 FOR BVW MITIGATION AREA SHRUB PLANTING SCHEDULE.

7. REFER TO SHEET 6 FOR TREE PLANTING SCHEDULE.

8. IF SNOW REMOVAL IS REQUIRED DURING CONSTRUCTION, PLOWED SNOW WILL NOT

BE PLACED IN WETLANDS OR STREAMS.

9. STOCKPILE AREAS TO BE PROTECTED WITH COMPOST FILTER TUBE AND SILT

FENCE AT THE BASE OF THE PILE.

10. MAINTAIN ACCESS ROAD AND PROTECT CROSS CULVERTS DURING CONSTRUCTION.

11. SLOPE PROTECTION EROSION CONTROL MATTING MAY NOT CONTAIN PLASTIC OR

PHOTODEGRADABLE MATERIAL.

12. ONLY EPA-APPROVED FLOCCULANTS MAY BE USED IF REQUIRED FOR THE

TREATMENT OF DEWATERING WASTEWATER.

TEMPORARY

WATERBAR

TEMPORARY

RIPRAP APRON

FS-18

COFFERDAM AND

PUMPING DIVERSION

GRAVEL CONTRACTOR

STAGING / STOCKPILE AREA

(SEE DETAIL ON SHEET 31)

SPOIL AREA

544.5 544.5

EL. 547.0

SLO

PE

TO

D

R

AIN

18" COMPOST

FILTER SOCK

COFFERDAM

12" COMPOST FILTER

SOCK (TYP.)

PARTIAL PLAN VIEW OF ACCESS ROAD INTERSECTION WITH PROSPECT DRIVE

RAWSON HILL BROOK

100' BUFFER ZONE

BORDERING LAND

SUBJECT TO FLOODING

BVW MITIGATION AREA

1,350 SF

SEE NOTE 6

TREE PLANTING AREA

SEE NOTE 7

NATURAL REVEGETATION AREA

TO BE SEEDED WITH XERCES NORTHEASTERN

POLLINATOR MIX (XERC00103) FROM ERNST

CONSERVATION SEEDS, OR EQUIVALENT