Section I_Century Bog Restoration Construction Drawings.pdf

PDF 27 MB Posted Feb 26, 2026

Attached to: DFW-2026-059 Century Bog Restoration Project
Solicitation number: BD-26-1046-DFW-FW104-125752
Issued by: Plymouth County, Massachusetts

About this file

Written by GovTribe AI · Feb 27, 2026

This file comprises construction drawings for the Century Bog Restoration project prepared for MassWildlife by Inter-Fluve, a wetland engineering firm based in Cambridge, Massachusetts. The project is located at Century Bog in the towns of Plymouth and Wareham, Massachusetts, at the confluence of Red Brook and Buttermilk Bay. The restoration work involves excavating and regrading approximately 2.6 miles of stream channel, removing existing berms and irrigation infrastructure, filling perimeter and lateral ditches, installing large wood structures and fish exclusion features, and constructing riffles with fabric-encapsulated soil (FES) lifts. The drawings specify excavation of approximately 18,600 cubic yards of fill discharge within existing ordinary high water (OHW), 90 cubic yards of dredging within OHW, and 37,050 cubic yards of excavation within wetlands, with 17,410 cubic yards of fill discharge within wetlands. The project includes installation of 413 logs, 576 logs with rootwads, and 656 cubic yards of slash for habitat enhancement across multiple bog cells, along with planting of Atlantic White Cedar clusters, transitional seed application on disturbed slopes, and sandplain grassland seeding on upland areas.

The construction drawings were issued for construction in February 2026 following a revision in July 2025 for reduced limits of disturbance. The project proposes permanent alterations to resource areas including reduction of 750 linear feet of bank, addition of 36,700 square feet of bordering vegetated wetland, reduction of 95,500 square feet of land under waterways and OHW, and reduction of 487,500 square feet of riverfront area. Proposed replacements include 24,600 linear feet of bank and 3,024,100 square feet of bordering vegetated wetland. The construction plans provide detailed specifications for channel design with typical 5-foot bottom widths, 2H:1V bank slopes, and multiple riffles at varying locations. Temporary access drives, staging areas, erosion control measures including silt fencing and turbidity curtains, and turtle protection protocols are incorporated throughout the design to minimize environmental impacts during construction activities.

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File	Type	Posted
Red_Brook_Addendum1_260320_Final.pdf	PDF	Feb 26, 2026
DFW-2026-059_Century Bog Restoration Project Manual.pdf	PDF	Feb 26, 2026

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VICINITY MAP

NOT TO SCALE

SITE MAP

NOT TO SCALE

COORDINATES:

LATITUDE: 41° 47' 57"

LONGITUDE: 70° 37' 33"

WATERBODY: RED BROOK

TRIBUTARY OF: BUTTERMILK BAY

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

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MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

COVER, LOCATION & SHEET LIST 1 22

PROJECT

LOCATION

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

FEBRUARY 2026

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

LOCATION MAP

STATE OF MASSACHUSETTS

Boston

Pittsfield Boston

Worcester

Lawrence

Wellfleet

Barnstable

Plymouth

Martha's Vineyard

Nantucket

North Adams

Woods Hole

Greenfield

Northampton

NOT TO SCALE

I-90

25 25

SANDWICHWAREHAM

BOURNE

BARKER RD

GLEN CHARLIE

POND

WHITE ISLAND POND

WHITE ISLAND

POND

EZEKIEL

POND

BARTLETT

POND

RED BROOK

SHEET LIST

1 COVER, LOCATION & SHEET LIST

2 EXISTING CONDITIONS AND SURVEY CONTROL PLAN

3 STAGING AND ACCESS PLAN

4 INDEX AND PROPOSED CONDITIONS OVERVIEW

5 PROPOSED CONDITIONS PLAN

6 PROPOSED SECTIONS

7 PROPOSED CONDITIONS PLAN

8 PROPOSED SECTIONS

9 PROPOSED CONDITIONS PLAN

10 PROPOSED SECTIONS

11 PROPOSED CONDITIONS PLAN

12 PROPOSED SECTIONS

13 PLANTING PLAN

14 PLANTING PLAN

15 PLANTING PLAN

16 PLANTING PLAN

17 TREATMENT DETAILS

18 TREATMENT DETAILS

19 EROSION CONTROL DETAILS

20 FES LIFT DETAILS

21 EXISTING RESOURCE AREAS PLAN

22 PROPOSED RESOURCE AREAS PLAN

FIRE ROAD, TYP

TOWN OF PLYMOUTH

CELL D

CELL C

CELL B

CELL 4

CELL A

CELL 1

O H

OH OH

O H

BARKER RD

CELL 7

CELL 5

CELL 6

CELL 3

CELL 2

TOWN OF WAREHAM

COMMONWEALTH

OF MASSACHUSETTS

COMMONWEALTH

OF MASSACHUSETTS

COMMONWEALTH

OF MASSACHUSETTS

COMMONWEALTH

OF MASSACHUSETTS

W N

O F

O U

TOWN OF

PLYMOUTH

COMMONWEALTH

OF MASSACHUSETTS

COMMONWEALTH

OF MASSACHUSETTS

CONTROL POINTS

POINT #

DESCRIPTION

CAPPED REBAR

ELEVATION

48.36

48.21

46.58

45.10

47.39

NORTHING

2754226.6220

2753032.4680

2752346.3010

2751282.1120

2753297.3490

EASTING

895570.1470

895874.7520

893733.3160

892692.9150

894411.6510

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

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MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

EXISTING CONDITIONS AND

SURVEY CONTROL PLAN 2 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

WHITE ISLAND POND

BARTLETT POND

EZEKIEL POND

RED BROOK

MAIN BOG CHANNEL

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

OH OH OVERHEAD LINE

EXISTING BUILDING

EXISTING WETLAND PER

MASSACHUSETTS DEP

EXISTING VEHICLE/PEDESTRIAN

PATH

EXISTING FIRE ROAD

EXISTING STREAM CHANNEL BANKS

SCALE IN FEET

0 500250

WHITE ISLAND

POND DAM

FLOW CONTROL

STRUCTURE

BERM

CONCRETE BOX

CULVERT, 2 BAYS

INVERT IN 43.0

INVERT OUT 42.8

CONCRETE BOX

CULVERT, 2 BAYS

INVERT IN 39.5

INVERT OUT 39.5

CULVERT

INVERT IN 41.0

INVERT OUT 41.5

CONCRETE

CULVERT, 2 PIPES

INVERT IN 40.9

INVERT OUT 41.6

CONCRETE OUTLET

STRUCTURE, 2 BAYS

INVERT IN 38.2

INVERT OUT 38.1

TRIPLE BARREL

CMP CULVERT

INVERT IN 38.9

INVERT OUT 38.6

CONCRETE OUTLET

STRUCTURE

INVERT IN 38.6

INVERT OUT 38.4

CULVERT

INVERT UNKNOWN

BERM

GATE

CONTROL POINTPOINT #

EXISTING GATE

1. TOPOGRAPHIC DATA OF BOGS AND SURROUNDING

AREA ARE FROM U.S. GEOLOGICAL SURVEY

TOPOGRAPHIC LIDAR, LIDAR FOR CENTRAL-EASTERN

MASS. DATA SET, FLOWN IN SPRING 2021,

RETRIEVED FROM MASSGIS.

2. BATHYMETRIC DATA OF RED BROOK BASED UPON

SURVEY COLLECTED BY INTER-FLUVE ON MAY 30,

2024.

3. SUPPLEMENTAL TOPOGRAPHIC DATA BASED UPON

SURVEY COLLECTED BY INTER-FLUVE ON MAY 30,

2024, AND SURVEY COLLECTED BY GREEN SEAL

ENVIRONMENTAL, INC. DURING JULY 2012 AND

DECEMBER 2013.

4. INFRASTRUCTURE LOCATION DATA IS APPROXIMATE.

5. OVERHEAD LINE APPROXIMATED FROM AERIAL

IMAGERY. THIS INFRASTRUCTURE SHALL BE

CONFIRMED BY THE CONTRACTOR PRIOR TO

CONSTRUCTION AND SHALL REMAIN AND BE

PROTECTED IN PLACE UNLESS STATED OTHERWISE.

6. PARCEL DATA WAS OBTAINED FROM MASSGIS

PUBLICLY AVAILABLE DATA. THE BOUNDARIES

SHOULD BE CONSIDERED APPROXIMATE.

7. HORIZONTAL COORDINATES ARE REFERENCED TO

NAD83, MASSACHUSETTS STATE PLANE, MAINLAND

ZONE, US FEET.

8. VERTICAL DATUM IS NAVD88, US FEET.

9. CELL BOUNDARIES ARE DEFINED BY WETLAND

BOUNDARIES FROM MASSGIS.

LIMIT OF DISTURBANCE

NOTES:

TEMPORARY HERRING

CHANNEL/RED BROOK

36" CONCRETE PIPE

STEEL PIPE

EXISTING ROADS

FLOW

BERM

DITCH, TYP

DAM FISH LADDER

IRRIGATION POND

SAND BORROW PIT

PARKING AREA

FIRE ROAD, TYP

SAND BORROW PIT

CELL D

CELL C

CELL B

CELL 4

CELL A

CELL 1

O H

OH OH

O H

BARKER RD

CELL 7

CELL 5

CELL 6

CELL 3

CELL 2

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

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MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

STAGING AND ACCESS PLAN 3 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

WHITE ISLAND POND

BARTLETT POND

EZEKIEL POND

RED BROOK

SCALE IN FEET

0 500250

MAIN BOG CHANNEL

APPROXIMATE TEMPORARY

STAGING AREAAPPROXIMATE LOCATION OF

TEMPORARY STAGING AREA

CONSTRUCTION ACCESS

APPROXIMATE LOCATION OF

TEMPORARY STAGING AREA

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

OH OH OVERHEAD LINE

EXISTING BUILDING

EXISTING WETLAND PER

MASSACHUSETTS DEP

TEMPORARY ACCESS DRIVE TO

REMAIN

EXISTING FIRE ROAD

EXISTING STREAM CHANNEL BANKS

EXISTING GATE

LIMIT OF DISTURBANCE

TEMPORARY ACCESS DRIVE TO BE

REMOVED

1. THE CONTRACTOR SHALL USE TEMPORARY ACCESS

DRIVES FOR SITE ACCESS AS FEASIBLE.

TEMPORARY ACCESS DRIVES INDICATED FOR

REMOVAL MAY BE USED FOR ACCESS UNTIL THEIR

REMOVAL.

2. CONTRACTOR MAY USE EXISTING FIRE ROADS FOR

CONSTRUCTION ACCESS

3. THE CONTRACTOR SHALL PROVIDE A TEMPORARY

STABILIZED CONSTRUCTION ENTRANCE AT EACH

EXIT AND ENTRANCE, SEE DETAIL 3 ON SHEET 17.

4. TEMPORARY AVOIDANCE FENCES SHALL BE

PLACED WITH MINIMUM CLEARANCE OF 6" FROM

THE GROUND SURFACE. ALL TEMPORARY FENCING

IS TO BE REMOVED AFTER CONSTRUCTION.

NOTES:

CONSTRUCTION ACCESS

EXISTING ROADS

FLOW

CONSTRUCTION ACCESS4

REMOVE EXISTING BERM

IRRIGATION POND

EXISTING GATE

STEEL PIPE

DITCH, TYP.

SAND BORROW PIT

GATE

EXISTING GATE

36" CONCRETE PIPE

TEMPORARY HERRING

CHANNEL/RED BROOK

STEEL PIPE

IRRIGATION POND

REMOVE

EXISTING

BERMS

EXISTING GATE

BERM

REMOVE

EXISTING BERM

IRRIGATION POND

REMOVE EXISTING BERM

FLOW CONTROL STRUCTURE

WHITE ISLAND

POND DAM

DAM FISH LADDER

TEMPORARY AVOIDANCE FENCES

PROPOSED GATE 3

PROPOSED GATE

PROPOSED GATE3

CONTRACTOR SHALL SET ASIDE ENOUGH

SAND TO SPREAD 12" OF SAND ON TOP OF

THE FINAL SURFACE AFTER REGRADING

CONCRETE BOX

CULVERT, 2 BAYS

INVERT IN 43.0

INVERT OUT 42.8

CONCRETE BOX

CULVERT, 2 BAYS

INVERT IN 39.5

INVERT OUT 39.5

CONCRETE

CULVERT, 2 PIPES

INVERT IN 40.9

INVERT OUT 41.6

CONCRETE OUTLET

STRUCTURE, 2 BAYS

INVERT IN 38.2

INVERT OUT 38.1

TRIPLE BARREL

CMP CULVERT

INVERT IN 38.9

INVERT OUT 38.6

CONCRETE OUTLET

STRUCTURE

INVERT IN 38.6

INVERT OUT 38.4

CULVERT

INVERT UNKNOWN

CULVERT

INVERT IN 41.0

INVERT OUT 41.5

PROPOSED GATE 3

7+36 1+00

CELL D

CELL C

CELL B

CELL 4

CELL A

CELL 1

BARKER RD

CELL 7

CELL 5

CELL 6

CELL 3

CELL 2

97+88

1+00

10+00

40+00

50+00

60+00

80+00

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

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24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

INDEX AND PROPOSED

CONDITIONS OVERVIEW 4 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

RED BROOK

SHEET 5 AND 13

SHEET 7 AND 14

SHEET 9 AND 15

SHEET 11 AND 16

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

EXISTING BUILDING

EXISTING WETLAND PER

MASSACHUSETTS DEP

EXISTING FIRE ROAD

PROPOSED CONTOUR (1')

PROPOSED STREAM

CHANNEL ALIGNMENT

SCALE IN FEET

0 500250

RED BROOK

BARTLETT POND

WHITE ISLAND POND

EZEKIEL POND

10+00

EXISTING GATE

PROPOSED STREAM CHANNEL BANKS

LIMIT OF DISTURBANCE

TEMPORARY ACCESS DRIVE TO

REMAIN

TEMPORARY ACCESS DRIVE TO BE

REMOVED

NOTES:

1. PROVIDE TOPOGRAPHIC COMPLEXITY IN CELLS 3, 4, 5, 6, 7, AND

B. SEE DETAIL 1 ON SHEET 17.

2. PERIMETER AND LATERAL DITCHES SHALL BE FILLED AND

COMPACTED TO FINAL SURROUNDING ELEVATIONS AND

SUBJECT TO THE INDICATED TOPOGRAPHIC COMPLEXITY

UNLESS NOTED OTHERWISE. PACK DITCHES WITH A MIXTURE

OF SLASH AND EXCAVATED MATERIAL.

3. ABANDONED IRRIGATION PIPES EXPOSED DURING

CONSTRUCTION SHALL BE REMOVED AND DISPOSED OF

OFFSITE TO THE EXTENT PRACTICAL. REMAINING BURIED

SECTIONS OF PIPE SHALL BE CUT AND CAPPED OR ENDS

BURIED.

4. ALL SIDE SLOPES SHALL BE GRADED TO A SLOPE OF

APPROXIMATELY 5H:1V OR MORE GRADUAL, SEEDED WITH

NATIVE TRANSITIONAL SEED MIXTURE.

5. LARGE WOOD SHALL BE INSTALLED IN AND ADJACENT TO THE

CHANNEL PER THE TREATMENT DETAILS AND IN

COORDINATION WITH THE ENGINEER. LARGE WOOD AND

POOLS ARE NOT DEPICTED IN PLAN OR PROFILE VIEW FOR

CLARITY, SEE TREATMENT DETAILS.

6. CLEAR AND SALVAGE EXISTING TREES AND SHRUBS

DESIGNATED BY THE ENGINEER PRIOR TO SURFACE

ROUGHENING AND GRADING. REUSE SALVAGED MATERIAL AS

SLASH FOR INSTALLATION IN LARGE WOOD STRUCTURES AND

FOR PLACEMENT OVER WETLAND AREAS. DO NOT REUSE

INVASIVE PLANTS DESIGNATED BY THE ENGINEER, WHICH

SHOULD BE REMOVED AND DISPOSED OF APPROPRIATELY IN

ACCORDANCE WITH SPECIFICATIONS.

7. RESTORE/GRADE MINOR SAND PILES/EXCAVATION PITS AND

OTHER IRREGULARITIES ASSOCIATED WITH FORMER

AGRICULTURAL ACTIVITIES AS IDENTIFIED BY THE ENGINEER.

8. EXCAVATED ORGANIC SOILS SHALL BE PRIORITIZED TO FILL IN

WETLAND DITCHES AND CHANNELS. SANDY SOILS SHALL BE

USED TO FILL REMAINING AREAS DESIGNATED FOR FILL, WITH

EXCESS SPOILED IN REUSE AREAS.

9. POTENTIAL SAND DISPOSAL AREAS MAY RECEIVE EXCESS SAND

SPOILS TO LIMIT HAULING WITHIN SITE. POTENTIAL SAND

DISPOSAL AREAS ARE NOT DEPICTED ON THE SECTIONS. SAND

DISPOSAL AREAS ARE SUBJECT TO FIELD ADJUSTMENT AND

SHALL BE GRADED TO A MAXIMUM SLOPE OF 5H:1V AND TIE

INTO EXISTING UPLAND GRADES.

10. THE ESTIMATED BOTTOM OF PEAT SURFACE WAS OBTAINED

FROM A GROUND PENETRATING RADAR (GPR) SURVEY

PERFORMED BY NRCS IN 2022 AND 2013. THIS INFORMATION IS

PROVIDED FOR THE SOLE CONVENIENCE OF THE CONTRACTOR.

THE GPR DATA ACCURACY IS HIGHLY VARIABLE. THE NATURE

AND EXTENT OF SUCH VARIATIONS MAY NOT BECOME EVIDENT

UNTIL DURING OR AFTER CONSTRUCTION.

11. THE PROPOSED STREAM PROFILE IS THE AVERAGE SLOPE.

POOLS WITHIN THE STREAM, NOT DEPICTED ON PROFILES OR

SECTIONS, SHALL BE PROVIDED ALONG THE OUTSIDE OF

MEANDER BENDS. SEE CONSTRUCTION DETAILS.

12. INVASIVE PLANT SPECIES TO BE REMOVED AND/OR TREATED

AS PART OF CONSTRUCTION. FOLLOW-UP SPOT TREATMENT

TO BE CONDUCTED AS NEEDED POST-CONSTRUCTION BY THE

CONTRACTOR PER THE CONTRACT DOCUMENTS. SEE

SPECIFICATIONS.

EXISTING ROADS

FLOW

PROPOSED GATE

TURTLE PROTECTION PLAN NOTES:

1. THE CONTRACTOR IS ADVISED THAT TURTLES MAY BE PRESENT ON A VARIETY OF HABITATS

ONSITE RANGING FROM SHALLOW VEGETATED WETLANDS WITHIN THE PERIMETER DITCHES AND

IRRIGATION PONDS, BASKING ON THE BANK EDGES, OR LAYING EGGS IN SAND BORROW PITS. IF TURTLES ARE ENCOUNTERED DURING CONSTRUCTION, THEY SHALL BE CAREFULLY MOVED OUT OF

HARM'S WAY, THE SPECIES AND LOCATION OF THE TURTLE NOTED, AND THE OWNER'S

REPRESENTATIVE SHALL BE NOTIFIED. TURTLES ENCOUNTERED IN AN ACTIVE WORK ZONE SHALL BE TEMPORARILY PLACED INTO A LARGE TUB, KEPT COOL, AND PLACED OUT OF THE SUN UNTIL

THEY CAN BE RELOCATED TO A TURTLE SAFE ZONE WITHIN THE SAME WORK DAY.

2. MINOR ADJUSTMENTS TO EARTHWORK MAY BE DIRECTED BY THE PROJECT ENGINEER IN THE

FIELD TO PRESERVE OR ENHANCE TURTLE HABITATS, OR TO PRESERVE EXISTING PATCHES OF

HIGH-QUALITY VEGETATION. AREAS TO BE PRESERVED WILL BE FLAGGED FOR THE CONTRACTOR

BY THE OWNER'S REPRESENTATIVE.

3. TO THE GREATEST EXTENT PRACTICABLE, SOIL STOCKPILES THAT COULD SERVE AS POTENTIAL NESTING SITES SHALL BE ENCLOSED WITH A TURTLE BARRIER BETWEEN MAY 15 AND JULY 1 TO

PREVENT ACCESS BY NESTING FEMALES.

4. THE TURTLE PROTECTION PLAN MAY BE FIELD ADAPTED IN COORDINATION WITH THE OWNER

AND/OR THE OWNER'S REPRESENTATIVE.

SUGGESTED TURTLE PROTECTION MEASURE:

COMPLETE PROPOSED WORK IN CELL A FIRST TO CREATE A

"TURTLE SAFE ZONE", DELINEATED BY A SILT FENCE BETWEEN

CELL 3 AND CELL A ALONG THE EXISTING BERM TO BE

REMOVED. TURTLES COULD BE TEMPORARILY RELOCATED TO

CELL A, AND CONTAINED WITH THE AID OF THE SILT FENCE,

UNTIL CONSTRUCTION IS COMPLETED.

1+00

2+00

3+00 4+00

5+00

6+00

7+00 7+36

CELL D

CELL C

CELL 7

2+00

4+0

6+00

7+00

8+00

9+00

10+00

11+00

12+00

13+00 14+00

15+00

16+00

17+00

19+00

21+00

22+00

23+00

24+00

OH OH OH OH OH OH OH

42.0

45.0

43.0 44.0

40.0

39.0

45.0

42.0

43.0

44.0

45.0

43.0

44.0

1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+00 13+00 14+00 15+00 16+00 17+00 18+00 19+00 20+00 21+00 22+00 23+00 24+00 25+00 26+00 27+00

0.00%

0.50%

0.01%

0.70% 0.01%

0.70%0.70%

0.01%

GRADE BREAK STA = 2+33

ELEV = 38.15

GRADE BREAK STA = 2+60

ELEV = 38.15

GRADE BREAK STA = 3+10

ELEV = 38.40

GRADE BREAK STA = 22+50

ELEV = 38.60

GRADE BREAK STA = 23+80

ELEV = 39.09

GRADE BREAK STA = 24+30

ELEV = 39.09

GRADE BREAK STA = 24+60

ELEV = 39.30

GRADE BREAK STA = 22+80

ELEV = 38.80

GRADE BREAK STA = 23+40

ELEV = 38.81

STA: 27+00

ELEV: 39.31

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

Ac tiv e\ R ed Br oo k_

C en tu ry

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M A\

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EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PROPOSED CONDITIONS PLAN 5 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

N E

- S

PROPOSED CHANNEL ALIGNMENT

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

EXISTING BUILDING

EXISTING FIRE ROAD

PROPOSED CONTOUR (1')

PROPOSED STREAM CHANNEL ALIGNMENT

SCALE IN FEET

0 16080

10+00

EXISTING GATE

EXISTING OUTLET STRUCTURE TO REMAIN, PROPOSED

CHANNEL SHALL CONFORM TO EXISTING INVERT. BOTTOM

OF CHANNEL WIDTH SHALL MATCH CULVERT WIDTH.

REMOVE AND DISPOSE OF EXISTING

TRIPLE BARREL CULVERT.

FILL EXISTING TEMPORARY

HERRING CHANNEL

EXPAND EXISTING POND INTO PROPOSED BOG SURFACE,

NO GRADING BELOW EXISTING LOW WATER SURFACE.

REMOVE CONTROL STRUCTURES AT IRRIGATION POND.

PROPOSED SAND SURFACE AREA. ESTABLISH UNIFORM GRADE TO GRADUALLY

MEET SURROUNDING GROUND SURFACES. GRADE SHALL NOT BE STEEPER

THAN 5H:1V. GRADING SHALL BE FIELD FIT. FINISHED SURFACE SHALL CONSIST

OF MINIMUM 1 FT THICK POORLY GRADED, MEDIUM GRAINED SAND

SOURCED FROM ONSITE. SURFACE SAND SHALL BE SEGREGATED TO LIMIT

INCLUSION OF ORGANIC MATERIALS. SURFACE SAND SHALL CONTAIN LESS

THAN 15% ORGANIC MATERIALS BY ESTIMATED BULK VOLUME .

50 FT RIFFLE WITH FES

BANKS, STA 2+60 TO 3+10

REMOVE EXISTING BERM TO CONNECT

CELL C TO BARTLETT POND

30 FT RIFFLE WITH FES

BANKS, STA 22+50 TO 22+80

LIMIT OF DISTURBANCEPOTENTIAL SAND DISPOSAL AREA. LOCATION

AND ORIENTATION SHALL BE APPROVED BY

THE ENGINEER PRIOR TO USE.

100'

10x VERTICAL

EXAGGERATION

FILL EXISTING CULVERT BENEATH THE

ACCESS DRIVE WITH FLOWABLE FILL

PROPOSED RIFFLE

MAINTAIN EXISTING ACCESS ROAD

PROPOSED STREAM CHANNEL BANKS

1 FT SAND REMOVAL

SURFACE TREATMENT WITHIN CELLS C AND D SHALL CONSIST OF

FIELD DIRECTED SCARIFICATION AFTER INITIAL IRRIGATION PIPE

REMOVAL AND GRUBBING TO PENETRATE THE SAND LAYER.

GRADING FEATURE EXTENT

TEMPORARY ACCESS DRIVE TO

REMAIN

TEMPORARY ACCESS DRIVE TO BE

REMOVED

REMOVE EXISTING BERM

EXISTING IRRIGATION POND

FIELD FIT GRADING OF STEEP

HILLS SURROUNDING BORROW

PIT IN COORDINATION WITH THE

ENGINEER. SALVAGE TREES

UNDER 3" DBH FOR REUSE.FILL ALL LATERAL

DITCHES (TYP.)

CONTRACTOR SHALL BE AWARE OF INVASIVE

VEGETATION MANAGEMENT AROUND

PERIMETER OF BARTLETT POND ON

MASSWILDLIFE PROPERTY. WORK SHALL BE

PERFORMED BY OTHERS AS NEEDED USING

MANUAL/LOW GROUND DISTURBANCE

TECHNIQUES, IN PERPETUITY. COORDINATION

BY CONTRACTOR MAY BE REQUIRED.

PROPOSED CHANNEL SHALL CONFORM TO

EXISTING INVERT. BOTTOM OF CHANNEL

WIDTH SHALL MATCH CULVERT WIDTH.

PROVIDE TIMBER STOP LOGS TO CREST ELEVATION

42.24 FT AND LOCKING DEVICE TO RETROFIT EXISTING

STRUCTURE. PROTECT EXISTING STRUCTURE.

STONE WEIR, FISH

EXCLUSION FEATURE,

CREST ELEVATION = 42.2

BARTLETT POND

REMOVE AND DISPOSE

OF OUTLET STRUCTURE

40 FT RIFFLE WITH FES

BANKS, STA 23+40 TO 23+80

30 FT RIFFLE WITH FES

BANKS, STA 24+30 TO 24+60

MAINTAIN EXISTING GATE

INSTALL SWING GATE

PROPOSED GATE

MAINTAIN EXISTING GATE

RECLAIM BRICK AND CONCRETE DEBRIS

FOR USE AS BACKFILL IN STAGING AREA

NOTES:

1. PROVIDE TOPOGRAPHIC COMPLEXITY IN CELLS 3, 4, 5, 6, 7, AND B. SEE

DETAIL 1 ON SHEET 17.

2. PERIMETER AND LATERAL DITCHES SHALL BE FILLED AND COMPACTED TO

FINAL SURROUNDING ELEVATIONS AND SUBJECT TO THE INDICATED

TOPOGRAPHIC COMPLEXITY UNLESS NOTED OTHERWISE. PACK DITCHES

WITH A MIXTURE OF SLASH AND EXCAVATED MATERIAL.

3. ABANDONED IRRIGATION PIPES EXPOSED DURING CONSTRUCTION SHALL BE

REMOVED AND DISPOSED OF OFFSITE TO THE EXTENT PRACTICAL.

REMAINING BURIED SECTIONS OF PIPE SHALL BE CUT AND CAPPED OR ENDS

BURIED.

4. ALL SIDE SLOPES SHALL BE GRADED TO A SLOPE OF APPROXIMATELY 5H:1V

OR MORE GRADUAL, SEEDED WITH NATIVE TRANSITIONAL SEED MIXTURE.

5. LARGE WOOD SHALL BE INSTALLED IN AND ADJACENT TO THE CHANNEL PER

THE TREATMENT DETAILS AND IN COORDINATION WITH THE ENGINEER.

LARGE WOOD AND POOLS ARE NOT DEPICTED IN PLAN OR PROFILE VIEW

FOR CLARITY, SEE TREATMENT DETAILS.

6. CLEAR AND SALVAGE EXISTING TREES AND SHRUBS DESIGNATED BY THE

ENGINEER PRIOR TO SURFACE ROUGHENING AND GRADING. REUSE

SALVAGED MATERIAL AS SLASH FOR INSTALLATION IN LARGE WOOD

STRUCTURES AND FOR PLACEMENT OVER WETLAND AREAS. DO NOT REUSE

INVASIVE PLANTS DESIGNATED BY THE ENGINEER, WHICH SHOULD BE

REMOVED AND DISPOSED OF APPROPRIATELY IN ACCORDANCE WITH

SPECIFICATIONS.

7. RESTORE/GRADE MINOR SAND PILES/EXCAVATION PITS AND OTHER

IRREGULARITIES ASSOCIATED WITH FORMER AGRICULTURAL ACTIVITIES AS

IDENTIFIED BY THE ENGINEER.

8. EXCAVATED ORGANIC SOILS SHALL BE PRIORITIZED TO FILL IN WETLAND

DITCHES AND CHANNELS. SANDY SOILS SHALL BE USED TO FILL REMAINING

AREAS DESIGNATED FOR FILL, WITH EXCESS SPOILED IN REUSE AREAS.

9. POTENTIAL SAND DISPOSAL AREAS MAY RECEIVE EXCESS SAND SPOILS TO

LIMIT HAULING WITHIN SITE. POTENTIAL SAND DISPOSAL AREAS ARE NOT

DEPICTED ON THE SECTIONS. SAND DISPOSAL AREAS ARE SUBJECT TO FIELD

ADJUSTMENT AND SHALL BE GRADED TO A MAXIMUM SLOPE OF 5H:1V AND

TIE INTO EXISTING UPLAND GRADES.

10. THE ESTIMATED BOTTOM OF PEAT SURFACE WAS OBTAINED FROM A

GROUND PENETRATING RADAR (GPR) SURVEY PERFORMED BY NRCS IN 2022

AND 2013. THIS INFORMATION IS PROVIDED FOR THE SOLE CONVENIENCE

OF THE CONTRACTOR. THE GPR DATA ACCURACY IS HIGHLY VARIABLE. THE

NATURE AND EXTENT OF SUCH VARIATIONS MAY NOT BECOME EVIDENT

UNTIL DURING OR AFTER CONSTRUCTION.

11. THE PROPOSED STREAM PROFILE IS THE AVERAGE SLOPE. POOLS WITHIN

THE STREAM, NOT DEPICTED ON PROFILES OR SECTIONS, SHALL BE

PROVIDED ALONG THE OUTSIDE OF MEANDER BENDS. SEE CONSTRUCTION

DETAILS.

12. INVASIVE PLANT SPECIES TO BE REMOVED AND/OR TREATED AS PART OF

CONSTRUCTION. FOLLOW-UP SPOT TREATMENT TO BE CONDUCTED AS

NEEDED POST-CONSTRUCTION BY THE CONTRACTOR PER THE CONTRACT

DOCUMENTS. SEE SPECIFICATIONS.

EXISTING GROUND, TYP

APPROXIMATE BOTTOM OF PEAT LAYER, TYP

AVERAGE PROPOSED GRADE, TYP

SEE NOTE 11

EXISTING SAND PIT TO BE FILLED WITH EXCESS SAND.

REFER TO SAND SURFACE TREATMENT NOTES FOR

REGION BETWEEN CELL C, CELL D, AND CELL 7.

1+00 2+00 3+00 4+00 5+00 5+25

6:1 9:1

STA: 1+75

ELEV: 47.72

STA: 2+10

ELEV: 43.78

STA: 4+08

ELEV: 42.95

STA: 4+29

ELEV: 42.93

STA: 4+16

ELEV: 39.09

STA: 4+21

ELEV: 39.09

STA: 4+52

ELEV: 43.01

STA: 4+73

ELEV: 46.51

PROPOSED OHW: 41.37

EXISTING OHW: 41.42

1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00

5:1

STA: 1+38

ELEV: 50.42

STA: 1+79

ELEV: 42.18 STA: 4+77

ELEV: 41.49

STA: 4+83

ELEV: 38.51

STA: 4+88

ELEV: 38.51

STA: 4+94

ELEV: 41.58

STA: 7+07

ELEV: 42.90

STA: 7+23

ELEV: 45.51

EXISTING OHW: 41.22

PROPOSED OHW: 41.18

1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 11+25

6:1 5:1 5:1

STA: 1+08

ELEV: 48.55

STA: 1+39

ELEV: 42.36 STA: 2+30

ELEV: 42.05

STA: 2+37

ELEV: 38.43

STA: 2+42

ELEV: 38.43

STA: 2+49

ELEV: 42.05

STA: 6+56

ELEV: 42.47

STA: 6+80

ELEV: 46.42 STA: 6+96

ELEV: 45.79

STA: 7+17

ELEV: 41.46

STA: 10+84

ELEV: 45.38

STA: 10+63

ELEV: 41.35

EXISTING OHW: 41.21

PROPOSED OHW: 40.85

5:1

1+00 2+00 3+00 3+50

5:1

STA: 2+97

ELEV: 45.63

STA: 2+75

ELEV: 41.44STA: 2+44

ELEV: 41.35STA: 1+39

ELEV: 38.08

EXISTING OHW: 38.89

PROPOSED OHW: 42.25

1+00 2+00 3+00 4+00 5+00 6+00 6+50

STA: 1+60

ELEV: 40.44

STA: 2+68

ELEV: 43.32 STA: 5+14

ELEV: 43.33

STA: 5+23

ELEV: 39.32

STA: 5+28

ELEV: 39.32

STA: 5+37

ELEV: 43.48

STA: 6+23

ELEV: 43.80

STA: 6+38

ELEV: 45.92

PROPOSED OHW: 41.57EXISTING OHW: 41.50

7:1

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

Ac tiv e\ R ed Br oo k_

C en tu ry

Bo g_

M A\

D ra w in gs \C en tu ry Bo g.

dw g

- e sc hu lz

EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PROPOSED SECTIONS 6 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

40'

5x VERTICAL

EXAGGERATION

1" = 40'5

C BOG GRADING

1" = 40'5

D BERM REMOVAL

1" = 40'5

B BOG GRADING

EXISTING GROUND

LEGEND

AVERAGE PROPOSED GRADE

APPROXIMATE BOTTOM OF PEAT LAYER

1" = 40'5

A BOG GRADING

1 FT SAND REMOVAL

1. SECTIONS ARE ORIENTED TO FACE DOWNSTREAM.

2. TYPICAL CHANNEL DIMENSIONS:

BOTTOM WIDTH = 5 FT

BANK HEIGHT APPROXIMATELY 3 FT TO 4 FT

BANK SLOPE = 2H:1V.

3. CHANNEL BOTTOM SHALL BE CONSTRUCTED TO THE GRADES DEPICTED IN

PROFILE AND SECTIONS.

4. POOLS, NOT DEPICTED IN THE SECTIONS HEREIN SHALL BE PROVIDED ALONG

THE OUTSIDE OF MEANDER BENDS. SEE CONSTRUCTION DETAILS.

5. GENERAL CHANNEL BANK SLOPES ARE SHOWN. INSTALLED BANK SLOPES MAY

VARY FROM VERTICAL IN LARGE WOOD AREAS TO 3H:1V AS DIRECTED BY THE

ENGINEER IN THE FIELD.

NOTES:

1" = 40'7

E BERM REMOVAL

2.6

CELL 6

CELL B

CELL 5

CELL 4

26+00 27+00

31+00

32+00

33+00

34+00 35+00 36+00

37+00

38+00 39+00 40+00

42+00

45+00

47+00

48+00

50+00 51+00

53+00 54+00

55+00 56+00

OH OH OH OH OH

OH OH

OH OH OH OH OH OH OH OH OH OH OH OH OH OH OH

42.0

43.0

43.043.0

41.0

42.0

43.0

46.0

45.0

41.0 42.0

43.0

44.0

26+00 27+00 28+00 29+00 30+00 31+00 32+00 33+00 34+00 35+00 36+00 37+00 38+00 39+00 40+00 41+00 42+00 43+00 44+00 45+00 46+00 47+00 48+00 49+00 50+00 51+00 52+00 53+00 54+00 55+00 56+00 57+00

0.00%

STA: 57+00

ELEV: 39.46

STA: 26+00

ELEV: 39.31

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

Ac tiv e\ R ed Br oo k_

C en tu ry

Bo g_

M A\

D ra w in gs \C en tu ry Bo g.

dw g

- e sc hu lz

EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PROPOSED CONDITIONS PLAN 7 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

N E

- S

N E

- S

PROPOSED CHANNEL ALIGNMENT

SCALE IN FEET

0 16080

SAND DISPOSAL AREA, FIELD ADJUST

GRADES TO JOIN EXISTING UPLAND AREAS

EXPAND EXISTING POND INTO PROPOSED BOG SURFACE,

NO GRADING BELOW EXISTING LOW WATER SURFACE.

REMOVE CONTROL STRUCTURES AT IRRIGATION POND.

EXPAND EXISTING POND INTO PROPOSED BOG SURFACE,

NO GRADING BELOW EXISTING LOW WATER SURFACE.

REMOVE CONTROL STRUCTURES AT IRRIGATION POND. UP TO 1 FT OF SAND REMOVAL

(ALTERNATE BID ITEM 1)

POTENTIAL SAND DISPOSAL AREA.

LOCATION AND ORIENTATION SHALL BE

APPROVED BY THE ENGINEER PRIOR TO USE.

POTENTIAL SAND DISPOSAL AREA. LOCATION

AND ORIENTATION SHALL BE APPROVED BY

THE ENGINEER PRIOR TO USE.

100'

10x VERTICAL

EXAGGERATION

REMOVE EXISTING BERM

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

EXISTING BUILDING

EXISTING FIRE ROAD

PROPOSED CONTOUR (1')

PROPOSED STREAM CHANNEL ALIGNMENT

10+00

EXISTING GATE

LIMIT OF DISTURBANCE

PROPOSED RIFFLE

PROPOSED STREAM CHANNEL BANKS

GRADING FEATURE EXTENT

TEMPORARY ACCESS DRIVE TO

REMAIN

TEMPORARY ACCESS DRIVE TO BE

REMOVED

GRADUALLY GRADE TO

2 FT OF SAND REMOVAL 0.5 FT OF SAND REMOVAL TO

GRADUALLY CONFORM TO

EXISTING BOG SURFACE

EXISTING IRRIGATION POND

FILL ALL LATERAL

DITCHES (TYP.)

REMOVE AND DISPOSE

OF OUTLET STRUCTURE

APPROXIMATE BOTTOM OF PEAT LAYER, TYP

EXISTING GROUND, TYP

AVERAGE PROPOSED GRADE, TYP

SEE NOTE 11

NOTES:

1. PROVIDE TOPOGRAPHIC COMPLEXITY IN CELLS 3, 4, 5, 6, 7, AND B. SEE DETAIL

1 ON SHEET 17.

2. PERIMETER AND LATERAL DITCHES SHALL BE FILLED AND COMPACTED TO

FINAL SURROUNDING ELEVATIONS AND SUBJECT TO THE INDICATED

TOPOGRAPHIC COMPLEXITY UNLESS NOTED OTHERWISE. PACK DITCHES WITH

A MIXTURE OF SLASH AND EXCAVATED MATERIAL.

3. ABANDONED IRRIGATION PIPES EXPOSED DURING CONSTRUCTION SHALL BE

REMOVED AND DISPOSED OF OFFSITE TO THE EXTENT PRACTICAL. REMAINING

BURIED SECTIONS OF PIPE SHALL BE CUT AND CAPPED OR ENDS BURIED.

4. ALL SIDE SLOPES SHALL BE GRADED TO A SLOPE OF APPROXIMATELY 5H:1V OR

MORE GRADUAL, SEEDED WITH NATIVE TRANSITIONAL SEED MIXTURE.

5. LARGE WOOD SHALL BE INSTALLED IN AND ADJACENT TO THE CHANNEL PER

THE TREATMENT DETAILS AND IN COORDINATION WITH THE ENGINEER.

LARGE WOOD AND POOLS ARE NOT DEPICTED IN PLAN OR PROFILE VIEW FOR

CLARITY, SEE TREATMENT DETAILS.

6. CLEAR AND SALVAGE EXISTING TREES AND SHRUBS DESIGNATED BY THE

ENGINEER PRIOR TO SURFACE ROUGHENING AND GRADING. REUSE SALVAGED

MATERIAL AS SLASH FOR INSTALLATION IN LARGE WOOD STRUCTURES AND

FOR PLACEMENT OVER WETLAND AREAS. DO NOT REUSE INVASIVE PLANTS

DESIGNATED BY THE ENGINEER, WHICH SHOULD BE REMOVED AND DISPOSED

OF APPROPRIATELY IN ACCORDANCE WITH SPECIFICATIONS.

7. RESTORE/GRADE MINOR SAND PILES/EXCAVATION PITS AND OTHER

IRREGULARITIES ASSOCIATED WITH FORMER AGRICULTURAL ACTIVITIES AS

IDENTIFIED BY THE ENGINEER.

8. EXCAVATED ORGANIC SOILS SHALL BE PRIORITIZED TO FILL IN WETLAND

DITCHES AND CHANNELS. SANDY SOILS SHALL BE USED TO FILL REMAINING

AREAS DESIGNATED FOR FILL, WITH EXCESS SPOILED IN REUSE AREAS.

9. POTENTIAL SAND DISPOSAL AREAS MAY RECEIVE EXCESS SAND SPOILS TO

LIMIT HAULING WITHIN SITE. POTENTIAL SAND DISPOSAL AREAS ARE NOT

DEPICTED ON THE SECTIONS. SAND DISPOSAL AREAS ARE SUBJECT TO FIELD

ADJUSTMENT AND SHALL BE GRADED TO A MAXIMUM SLOPE OF 5H:1V AND

TIE INTO EXISTING UPLAND GRADES.

10. THE ESTIMATED BOTTOM OF PEAT SURFACE WAS OBTAINED FROM A

GROUND PENETRATING RADAR (GPR) SURVEY PERFORMED BY NRCS IN 2022

AND 2013. THIS INFORMATION IS PROVIDED FOR THE SOLE CONVENIENCE OF

THE CONTRACTOR. THE GPR DATA ACCURACY IS HIGHLY VARIABLE. THE

NATURE AND EXTENT OF SUCH VARIATIONS MAY NOT BECOME EVIDENT

UNTIL DURING OR AFTER CONSTRUCTION.

11. THE PROPOSED STREAM PROFILE IS THE AVERAGE SLOPE. POOLS WITHIN THE

STREAM, NOT DEPICTED ON PROFILES OR SECTIONS, SHALL BE PROVIDED

ALONG THE OUTSIDE OF MEANDER BENDS. SEE CONSTRUCTION DETAILS.

12. INVASIVE PLANT SPECIES TO BE REMOVED AND/OR TREATED AS PART OF

CONSTRUCTION. FOLLOW-UP SPOT TREATMENT TO BE CONDUCTED AS

NEEDED POST-CONSTRUCTION BY THE CONTRACTOR PER THE CONTRACT

DOCUMENTS. SEE SPECIFICATIONS.

58 58

1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 9+50

7:1 7:1

STA: 8+66

ELEV: 44.18

STA: 7+72

ELEV: 43.23

STA: 7+93

ELEV: 43.30

STA: 7+85

ELEV: 39.44

STA: 7+79

ELEV: 39.44

STA: 1+86

ELEV: 49.09

STA: 2+19

ELEV: 44.68

STA: 8+87

ELEV: 47.15STA: 6+72

ELEV: 42.94

STA: 6+71

ELEV: 41.94

STA: 2+41

ELEV: 44.02

STA: 2+42

ELEV: 43.00

PROPOSED OHW: 42.19

EXISTING OHW: 43.31

58 58

1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 9+25

11:1 6:1

STA: 7+93

ELEV: 44.00

STA: 8+02

ELEV: 39.39

STA: 8+07

ELEV: 39.39

STA: 8+47

ELEV: 44.38

STA: 1+70

ELEV: 48.56

STA: 2+01

ELEV: 43.48

STA: 8+17

ELEV: 44.02

STA: 8+68

ELEV: 46.31

PROPOSED OHW: 41.99

EXISTING OHW: 42.90

62 62

1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 9+50

6:113:1

STA: 7+86

ELEV: 39.36

STA: 7+93

ELEV: 39.36

STA: 8+90

ELEV: 43.92

STA: 1+81

ELEV: 46.33

STA: 7+71

ELEV: 43.62

STA: 8+04

ELEV: 43.74

STA: 9+08

ELEV: 46.93

STA: 2+17

ELEV: 43.51

PROPOSED OHW: 41.72

EXISTING OHW: 42.68

1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+00 12+50

6:1 10:1 7:16:1

STA: 10+26

ELEV: 39.33

STA: 10+31

ELEV: 39.33

STA: 1+61

ELEV: 46.80

STA: 1+92

ELEV: 43.73

STA: 5+25

ELEV: 43.83

STA: 5+43

ELEV: 46.85

STA: 7+26

ELEV: 45.56

STA: 7+38

ELEV: 43.79

STA: 10+19

ELEV: 42.85

STA: 10+37

ELEV: 42.71

STA: 12+05

ELEV: 43.68

STA: 12+18

ELEV: 45.90

PROPOSED OHW: 41.61EXISTING OHW: 42.63

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

Ac tiv e\ R ed Br oo k_

C en tu ry

Bo g_

M A\

D ra w in gs \C en tu ry Bo g.

dw g

- e sc hu lz

EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PROPOSED SECTIONS 8 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

1" = 40'7

I BERM REMOVAL

1" = 40'7

G BOG GRADING

1" = 40'7

H BERM REMOVAL

1" = 40'7

F BOG GRADING

40'

5x VERTICAL

EXAGGERATION

EXISTING GROUND

LEGEND

AVERAGE PROPOSED GRADE

APPROXIMATE BOTTOM

OF PEAT LAYER

1. SECTIONS ARE ORIENTED TO FACE DOWNSTREAM.

2. TYPICAL CHANNEL DIMENSIONS:

BOTTOM WIDTH = 5 FT

BANK HEIGHT APPROXIMATELY 3 FT TO 4 FT

BANK SLOPE = 2H:1V.

3. CHANNEL BOTTOM SHALL BE CONSTRUCTED TO

THE GRADES DEPICTED IN PROFILE AND SECTIONS.

4. POOLS, NOT DEPICTED IN THE SECTIONS HEREIN

SHALL BE PROVIDED ALONG THE OUTSIDE OF

MEANDER BENDS. SEE CONSTRUCTION DETAILS.

5. GENERAL CHANNEL BANK SLOPES ARE SHOWN.

INSTALLED BANK SLOPES MAY VARY FROM

VERTICAL IN LARGE WOOD AREAS TO 3H:1V AS

DIRECTED BY THE ENGINEER IN THE FIELD.

NOTES:

UP TO 1 FT SAND REMOVAL

(ALTERNATE BID ITEM 1)

CELL 3

CELL 2

CELL 1

56+00

57+00

58+00 59+00

62+00

63+00

64+00

66+00

69+00

70+00

71+00

73+00

75+00

77+00

78+00

79+00 80+00

81+00

82+00

84+00

85+00

87+00 88+00

89+00 90+00

91+00 92+00

93+00 94+00

95+00 96+00

97+00 97+88

O H

OH OH

46.046.046.0

J 9 K

52 52

56+00 57+00 58+00 59+00 60+00 61+00 62+00 63+00 64+00 65+00 66+00 67+00 68+00 69+00 70+00 71+00 72+00

0.94%

0.02%

0.02% 0.94%0.94% 0.02% 0.94%0.005%

STA: 72+00

ELEV: 41.93STA: 56+00

ELEV: 39.46

GRADE BREAK STA = 66+45

ELEV = 39.84

GRADE BREAK STA = 66+10

ELEV = 39.51

GRADE BREAK STA = 66+75

ELEV = 39.84

GRADE BREAK STA = 69+74

ELEV = 40.73

GRADE BREAK STA = 70+99

ELEV = 41.90

GRADE BREAK STA = 67+05

ELEV = 40.13

GRADE BREAK STA = 68+00

ELEV = 40.15

GRADE BREAK STA = 68+60

ELEV = 40.71

52 52

72+00 73+00 74+00 75+00 76+00 77+00 78+00 79+00 80+00 81+00 82+00 83+00 84+00 85+00 86+00

GRADE BREAK STA = 78+93

ELEV = 43.02GRADE BREAK STA = 77+93

ELEV = 42.07

GRADE BREAK STA = 85+62

ELEV = 43.17

GRADE BREAK STA = 85+67

ELEV = 42.66

0.95%0.02% 0.02%

STA: 72+00

ELEV: 41.95

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

Ac tiv e\ R ed Br oo k_

C en tu ry

Bo g_

M A\

D ra w in gs \C en tu ry Bo g.

dw g

- e sc hu lz

EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PROPOSED CONDITIONS PLAN 9 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

MATCHLINE - SHEET 11

N E

- S

TIE IN TO EXISTING CHANNEL

REMOVE EXISTING BERM

EXISTING BERM AND FLOW CONTROL STRUCTURE TO REMAIN

BOTTOM OF CHANNEL WIDTH SHALL MATCH THE CULVERT

WIDTH, CHANNEL INVERT SHALL CONFORM TO CULVERT INVERT.

PROPOSED CHANNEL ALIGNMENT

SCALE IN FEET

0 16080

EXISTING FLOW

CONTROL TO REMAIN

WHITE ISLAND POND DAM AND

FISH LADDER NOT INCLUDED IN

THE PROJECT AREA

VISIBLE IRRIGATION PIPES AND TUBING SHALL BE

REMOVED TO THE EXTENT PRACTICAL THROUGH

PULLING OF PIPE. NO FIELD SCARIFICATION AFTER

IRRIGATION PIPE REMOVAL IN CELL 1.

CONTRACTOR SHALL COORDINATE WITH OWNER AND

ENGINEER TO SELECTIVELY PLACE SALVAGED WOOD IN

AND AROUND EXISTING CHANNEL, WITH EXCAVATION

AS NECESSARY TO INSTALL WOOD BALLAST

REMOVE EXISTING BERM TO

CONNECT OFF-BOG WETLAND AT

APPROXIMATELY ELEVATION 45.9'

REMOVE EXISTING

BERM TO CONNECT

OFF-BOG WETLAND

60 FT RIFFLE WITH FES

BANKS, STA 68+00 TO 68+60

100 FT RIFFLE WITH FES

BANKS, STA 76+80 TO 77+80

100'

10x VERTICAL

EXAGGERATION

REMOVE AND DISPOSE

OF TIMBER STRUCTURE

SURFACE TREATMENT WITHIN CELL 2 SHALL CONSIST OF

FIELD SCARIFICATION AFTER INITIAL IRRIGATION PIPE

REMOVAL AND GRUBBING TO PENETRATE THE SAND LAYER

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

EXISTING BUILDING

EXISTING FIRE ROAD

PROPOSED CONTOUR (1')

PROPOSED STREAM CHANNEL ALIGNMENT

10+00

EXISTING GATE

LIMIT OF DISTURBANCE

PROPOSED RIFFLE

PROPOSED STREAM CHANNEL BANKS

GRADING FEATURE EXTENT

TIE INTO EXISTING CHANNEL

POTENTIAL SAND DISPOSAL AREA. LOCATION

AND ORIENTATION SHALL BE APPROVED BY

THE ENGINEER PRIOR TO USE.

TEMPORARY ACCESS DRIVE TO

REMAIN

TEMPORARY ACCESS DRIVE TO BE

REMOVED

PROPOSED CHANNEL ALIGNMENT

GRADUALLY GRADE TO

2 FT OF SAND REMOVAL

0.5 FT OF SAND REMOVAL

TO GRADUALLY CONFORM

TO EXISTING BOG SURFACE

EXISTING

IRRIGATION POND

FILL ALL LATERAL DITCHES (TYP.)

TEMPORARY AVOIDANCE FENCES

FILL ALL LATERAL AND PERIMETER DITCHES

125 FT RIFFLE WITH FES

BANKS, STA 69+85 TO 71+10

PROPOSED GATE

MAINTAIN EXISTING GATE

INSTALL SWING GATE 3

MAINTAIN

EXISTING GATE

NOTES:

1. PROVIDE TOPOGRAPHIC COMPLEXITY IN CELLS 3, 4, 5, 6, 7, AND B. SEE

DETAIL 1 ON SHEET 17.

2. PERIMETER AND LATERAL DITCHES SHALL BE FILLED AND COMPACTED

TO FINAL SURROUNDING ELEVATIONS AND SUBJECT TO THE INDICATED

TOPOGRAPHIC COMPLEXITY UNLESS NOTED OTHERWISE. PACK

DITCHES WITH A MIXTURE OF SLASH AND EXCAVATED MATERIAL.

3. ABANDONED IRRIGATION PIPES EXPOSED DURING CONSTRUCTION

SHALL BE REMOVED AND DISPOSED OF OFFSITE TO THE EXTENT

PRACTICAL. REMAINING BURIED SECTIONS OF PIPE SHALL BE CUT AND

CAPPED OR ENDS BURIED.

4. ALL SIDE SLOPES SHALL BE GRADED TO A SLOPE OF APPROXIMATELY

5H:1V OR MORE GRADUAL, SEEDED WITH NATIVE TRANSITIONAL SEED

MIXTURE.

5. LARGE WOOD SHALL BE INSTALLED IN AND ADJACENT TO THE

CHANNEL PER THE TREATMENT DETAILS AND IN COORDINATION WITH

THE ENGINEER. LARGE WOOD AND POOLS ARE NOT DEPICTED IN PLAN

OR PROFILE VIEW FOR CLARITY, SEE TREATMENT DETAILS.

6. CLEAR AND SALVAGE EXISTING TREES AND SHRUBS DESIGNATED BY

THE ENGINEER PRIOR TO SURFACE ROUGHENING AND GRADING.

REUSE SALVAGED MATERIAL AS SLASH FOR INSTALLATION IN LARGE

WOOD STRUCTURES AND FOR PLACEMENT OVER WETLAND AREAS. DO

NOT REUSE INVASIVE PLANTS DESIGNATED BY THE ENGINEER, WHICH

SHOULD BE REMOVED AND DISPOSED OF APPROPRIATELY IN

ACCORDANCE WITH SPECIFICATIONS.

7. RESTORE/GRADE MINOR SAND PILES/EXCAVATION PITS AND OTHER

IRREGULARITIES ASSOCIATED WITH FORMER AGRICULTURAL

ACTIVITIES AS IDENTIFIED BY THE ENGINEER.

8. EXCAVATED ORGANIC SOILS SHALL BE PRIORITIZED TO FILL IN

WETLAND DITCHES AND CHANNELS. SANDY SOILS SHALL BE USED TO

FILL REMAINING AREAS DESIGNATED FOR FILL, WITH EXCESS SPOILED

IN REUSE AREAS.

9. POTENTIAL SAND DISPOSAL AREAS MAY RECEIVE EXCESS SAND SPOILS

TO LIMIT HAULING WITHIN SITE. POTENTIAL SAND DISPOSAL AREAS

ARE NOT DEPICTED ON THE SECTIONS. SAND DISPOSAL AREAS ARE

SUBJECT TO FIELD ADJUSTMENT AND SHALL BE GRADED TO A

MAXIMUM SLOPE OF 5H:1V AND TIE INTO EXISTING UPLAND GRADES.

10. THE ESTIMATED BOTTOM OF PEAT SURFACE WAS OBTAINED FROM A

GROUND PENETRATING RADAR (GPR) SURVEY PERFORMED BY NRCS IN

2022 AND 2013. THIS INFORMATION IS PROVIDED FOR THE SOLE

CONVENIENCE OF THE CONTRACTOR. THE GPR DATA ACCURACY IS

HIGHLY VARIABLE. THE NATURE AND EXTENT OF SUCH VARIATIONS

MAY NOT BECOME EVIDENT UNTIL DURING OR AFTER CONSTRUCTION.

11. THE PROPOSED STREAM PROFILE IS THE AVERAGE SLOPE. POOLS

WITHIN THE STREAM, NOT DEPICTED ON PROFILES OR SECTIONS,

SHALL BE PROVIDED ALONG THE OUTSIDE OF MEANDER BENDS. SEE

CONSTRUCTION DETAILS.

12. INVASIVE PLANT SPECIES TO BE REMOVED AND/OR TREATED AS PART

OF CONSTRUCTION. FOLLOW-UP SPOT TREATMENT TO BE CONDUCTED

AS NEEDED POST-CONSTRUCTION BY THE CONTRACTOR PER THE

CONTRACT DOCUMENTS. SEE SPECIFICATIONS.

APPROXIMATE BOTTOM OF PEAT LAYER, TYP

EXISTING GROUND, TYP

AVERAGE PROPOSED GRADE, TYP

SEE NOTE 11

35 FT RIFFLE WITH

FES BANKS, STA

66+10 TO 66+45

30 FT RIFFLE WITH

FES BANKS, STA

66+75 TO 67+05

1+00 2+00 3+00 4+00 5+00 6+00

10:19:1

STA: 2+42

ELEV: 46.17

STA: 2+18

ELEV: 48.97

STA: 5+45

ELEV: 48.79

STA: 5+21

ELEV: 46.31

STA: 3+84

ELEV: 45.70

STA: 4+03

ELEV: 45.76

STA: 3+96

ELEV: 42.43

STA: 3+91

ELEV: 42.45

PROPOSED OHW: 44.10

1+00 2+00 3+00 4+00 5+00 6+00 6+50

5:15:1

STA: 1+47

ELEV: 48.36

STA: 1+64

ELEV: 45.32

STA: 5+65

ELEV: 48.97

STA: 5+47

ELEV: 45.42

STA: 4+47

ELEV: 45.41

STA: 4+66

ELEV: 45.50

STA: 4+54

ELEV: 41.99

STA: 4+59

ELEV: 41.99

PROPOSED OHW: 43.81 EXISTING OHW: 43.80

1+00 2+00 3+00 4+00 5+00 6+00 6+50

10:1 5:1

STA: 1+67

ELEV: 47.88

STA: 1+91

ELEV: 45.53

STA: 3+36

ELEV: 44.76

STA: 3+46

ELEV: 40.14

STA: 3+51

ELEV: 40.14

STA: 3+63

ELEV: 45.02

STA: 5+37

ELEV: 45.32

STA: 5+72

ELEV: 51.78PROPOSED OHW: 42.49

EXISTING OHW: 43.75

1+00 2+00 3+00 4+00 5+00 6+00 7+00

7:1 7:1

STA: 1+98

ELEV: 48.97

STA: 2+14

ELEV: 46.79

STA: 4+75

ELEV: 46.66

STA: 4+94

ELEV: 46.60

STA: 4+87

ELEV: 43.10

STA: 4+82

ELEV: 43.10

STA: 6+01

ELEV: 46.29

STA: 6+18

ELEV: 48.94

PROPOSED OHW: 44.77 EXISTING OHW: 44.05

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

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EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PROPOSED SECTIONS 10 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

1" = 40'9

L BERM REMOVAL

1" = 40'9

J BOG GRADING

1" = 40'9

M BOG GRADING

1" = 40'9

K BOG GRADING

40'

5x VERTICAL

EXAGGERATION

EXISTING GROUND

LEGEND

AVERAGE PROPOSED GRADE

APPROXIMATE BOTTOM OF PEAT LAYER

1. SECTIONS ARE ORIENTED TO FACE DOWNSTREAM.

2. TYPICAL CHANNEL DIMENSIONS:

BOTTOM WIDTH = 5 FT

BANK HEIGHT APPROXIMATELY 3 FT TO 4 FT

BANK SLOPE = 2H:1V.

3. CHANNEL BOTTOM SHALL BE CONSTRUCTED TO THE GRADES DEPICTED

IN PROFILE AND SECTIONS.

4. POOLS, NOT DEPICTED IN THE SECTIONS HEREIN SHALL BE PROVIDED

ALONG THE OUTSIDE OF MEANDER BENDS. SEE CONSTRUCTION DETAILS.

5. GENERAL CHANNEL BANK SLOPES ARE SHOWN. INSTALLED BANK SLOPES

MAY VARY FROM VERTICAL IN LARGE WOOD AREAS TO 3H:1V AS

DIRECTED BY THE ENGINEER IN THE FIELD.

NOTES:

CELL A

45.0

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

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C en tu ry

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dw g

- e sc hu lz

EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PROPOSED CONDITIONS PLAN 11 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

MATCHLINE - SHEET 9

SCALE IN FEET

0 16080

NO DISTURBANCE

WITHIN EXISTING

OPEN WATER AREA DECOMMISSION

EXISTING ACCESS DRIVE

SURFACE TREATMENT SHALL CONSIST OF

FIELD SCARIFICATION AFTER INITIAL

IRRIGATION PIPE REMOVAL AND GRUBBING

TO PENETRATE THE SAND LAYER.

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

EXISTING BUILDING

EXISTING FIRE ROAD

PROPOSED CONTOUR (1')

EXISTING GATE

LIMIT OF DISTURBANCE

PROPOSED RIFFLE

GRADING FEATURE EXTENT

POTENTIAL SAND DISPOSAL AREA. LOCATION

AND ORIENTATION SHALL BE APPROVED BY

THE ENGINEER PRIOR TO USE.

TEMPORARY ACCESS DRIVE TO

REMAIN

TEMPORARY ACCESS DRIVE TO BE

REMOVEDEXISTING BERM TO BE REMOVED

FILL ALL LATERAL

DITCHES (TYP)

INSTALL SWING GATE3

PROPOSED GATE

NOTES:

1. PROVIDE TOPOGRAPHIC COMPLEXITY IN CELLS 3, 4, 5, 6, 7, AND B. SEE

DETAIL 1 ON SHEET 17.

2. PERIMETER AND LATERAL DITCHES SHALL BE FILLED AND COMPACTED

TO FINAL SURROUNDING ELEVATIONS AND SUBJECT TO THE INDICATED

TOPOGRAPHIC COMPLEXITY UNLESS NOTED OTHERWISE. PACK

DITCHES WITH A MIXTURE OF SLASH AND EXCAVATED MATERIAL.

3. ABANDONED IRRIGATION PIPES EXPOSED DURING CONSTRUCTION

SHALL BE REMOVED AND DISPOSED OF OFFSITE TO THE EXTENT

PRACTICAL. REMAINING BURIED SECTIONS OF PIPE SHALL BE CUT AND

CAPPED OR ENDS BURIED.

4. ALL SIDE SLOPES SHALL BE GRADED TO A SLOPE OF APPROXIMATELY

5H:1V OR MORE GRADUAL, SEEDED WITH NATIVE TRANSITIONAL SEED

MIXTURE.

5. LARGE WOOD SHALL BE INSTALLED IN AND ADJACENT TO THE

CHANNEL PER THE TREATMENT DETAILS AND IN COORDINATION WITH

THE ENGINEER. LARGE WOOD AND POOLS ARE NOT DEPICTED IN PLAN

OR PROFILE VIEW FOR CLARITY, SEE TREATMENT DETAILS.

6. CLEAR AND SALVAGE EXISTING TREES AND SHRUBS DESIGNATED BY

THE ENGINEER PRIOR TO SURFACE ROUGHENING AND GRADING.

REUSE SALVAGED MATERIAL AS SLASH FOR INSTALLATION IN LARGE

WOOD STRUCTURES AND FOR PLACEMENT OVER WETLAND AREAS. DO

NOT REUSE INVASIVE PLANTS DESIGNATED BY THE ENGINEER, WHICH

SHOULD BE REMOVED AND DISPOSED OF APPROPRIATELY IN

ACCORDANCE WITH SPECIFICATIONS.

7. RESTORE/GRADE MINOR SAND PILES/EXCAVATION PITS AND OTHER

IRREGULARITIES ASSOCIATED WITH FORMER AGRICULTURAL

ACTIVITIES AS IDENTIFIED BY THE ENGINEER.

8. EXCAVATED ORGANIC SOILS SHALL BE PRIORITIZED TO FILL IN

WETLAND DITCHES AND CHANNELS. SANDY SOILS SHALL BE USED TO

FILL REMAINING AREAS DESIGNATED FOR FILL, WITH EXCESS SPOILED

IN REUSE AREAS.

9. POTENTIAL SAND DISPOSAL AREAS MAY RECEIVE EXCESS SAND SPOILS

TO LIMIT HAULING WITHIN SITE. POTENTIAL SAND DISPOSAL AREAS

ARE NOT DEPICTED ON THE SECTIONS. SAND DISPOSAL AREAS ARE

SUBJECT TO FIELD ADJUSTMENT AND SHALL BE GRADED TO A

MAXIMUM SLOPE OF 5H:1V AND TIE INTO EXISTING UPLAND GRADES.

10. THE ESTIMATED BOTTOM OF PEAT SURFACE WAS OBTAINED FROM A

GROUND PENETRATING RADAR (GPR) SURVEY PERFORMED BY NRCS IN

2022 AND 2013. THIS INFORMATION IS PROVIDED FOR THE SOLE

CONVENIENCE OF THE CONTRACTOR. THE GPR DATA ACCURACY IS

HIGHLY VARIABLE. THE NATURE AND EXTENT OF SUCH VARIATIONS

MAY NOT BECOME EVIDENT UNTIL DURING OR AFTER CONSTRUCTION.

11. THE PROPOSED STREAM PROFILE IS THE AVERAGE SLOPE. POOLS

WITHIN THE STREAM, NOT DEPICTED ON PROFILES OR SECTIONS,

SHALL BE PROVIDED ALONG THE OUTSIDE OF MEANDER BENDS. SEE

CONSTRUCTION DETAILS.

12. INVASIVE PLANT SPECIES TO BE REMOVED AND/OR TREATED AS PART

OF CONSTRUCTION. FOLLOW-UP SPOT TREATMENT TO BE CONDUCTED

AS NEEDED POST-CONSTRUCTION BY THE CONTRACTOR PER THE

CONTRACT DOCUMENTS. SEE SPECIFICATIONS.

SUGGESTED TURTLE PROTECTION MEASURE:

COMPLETE PROPOSED WORK IN CELL A FIRST TO CREATE A "TURTLE SAFE ZONE", DELINEATED BY A SILT FENCE BETWEEN CELL 3 AND CELL A ALONG THE EXISTING BERM TO BE REMOVED. TURTLES

COULD BE TEMPORARILY RELOCATED TO CELL A, AND CONTAINED WITH THE AID OF THE SILT

FENCE, UNTIL CONSTRUCTION IS COMPLETED. SEE SHEET 4 FOR TURTLE PROTECTION PLAN.

1+00 2+00 3+00 4+00 5+00 5+50

7:1 8:1

STA: 1+63

ELEV: 48.89

STA: 1+86

ELEV: 45.72

STA: 4+77

ELEV: 45.51

STA: 4+99

ELEV: 48.41

1+00 2+00 3+00 4+00 5+00 6+00 7+00 7+50

6:1 6:1

STA: 1+63

ELEV: 48.64

STA: 1+86

ELEV: 44.61

STA: 6+84

ELEV: 45.31

STA: 7+04

ELEV: 48.97

1+00 2+00 3+00 4+00 4+50

7:110:1

STA: 1+65

ELEV: 47.86

STA: 1+89

ELEV: 45.50

STA: 3+84

ELEV: 45.83

STA: 4+07

ELEV: 49.19

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

Ac tiv e\ R ed Br oo k_

C en tu ry

Bo g_

M A\

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- e sc hu lz

EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PROPOSED SECTIONS 12 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

1" = 40'11

N BERM REMOVAL

1" = 40'11

O BOG GRADING

1" = 40'11

P BOG GRADING

40'

5x VERTICAL

EXAGGERATION

EXISTING GROUND

LEGEND

AVERAGE PROPOSED GRADE

APPROXIMATE BOTTOM OF PEAT LAYER

CELL D

CELL C

CELL 7

OH OH OH OH OH OH OH

OH OH

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

Ac tiv e\ R ed Br oo k_

C en tu ry

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M A\

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EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PLANTING PLAN 13 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

N E

- S

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

ATLANTIC WHITE CEDAR WETLAND

SCALE IN FEET

0 16080

COASTAL PLAIN PONDSHORE

SHRUB/FEN WETLAND

SANDPLAIN GRASSLAND

RED MAPLE WETLAND

EXISTING BUILDING

EXISTING GATE

LIMIT OF DISTURBANCE

SANDPLAIN GRASSLAND SHALL

BE FIELD FIT OVER THE EXTENT

OF DISTURBED GROUND

TRANSITIONAL

NOTES:

1. PLANT ATLANTIC WHITE CEDAR (AWC) IN DENSE

CLUSTERS WITHIN AREAS APPROVED BY THE

INTER-FLUVE ECOLOGIST AND OWNER BASED ON

FAVORABLE HYDROLOGIC CONDITIONS. EACH

CLUSTER SHALL CONTAIN 30–40 TREES, SPACED

10–12 FT ON CENTER. SPACE CLUSTERS

APPROXIMATELY 175–200 FT ON CENTER. SALVAGED

SPHAGNUM SHALL BE PLACED ON THE GROUND

SURFACE OF AWC ZONES AS DIRECTED BY THE

OWNER'S REPRESENTATIVE.

2. TRANSITIONAL SEED SHALL BE APPLIED ON ALL

DISTURBED SIDE SLOPES WITHIN AND AROUND THE

PERIMETER OF THE BOG.

3. SANDPLAIN GRASSLAND SEED SHALL BE APPLIED ON

ALL DISTURBED UPLAND AREAS.

4. FIELD ADJUSTED SAND DISPOSAL AREAS ALONG THE

BOG PERIMETER SHALL, AS SHOWN ON THE

PROPOSED CONDITIONS PLAN, BE VEGETATED WITH

SANDPLAIN GRASSLAND SEED AT THE CREST OF THE

DISPOSAL AREA.

POND

PROPOSED GATE

FORESTED/SHRUB WETLAND WITH

DENSE CLUSTERS OF ATLANTIC

WHITE CEDARS, SEE NOTE 1

EXACT PLANTING ZONE BOUNDARIES TO

BE FIELD FIT AT THE TIME OF PLANTING

0.3 ACRES OF GRASS/FORB MIX. FINAL SEEDING LOCATION

TO BE FIELD FIT IN COORDINATION WITH THE ECOLOGIST.

REFER TO SAND SURFACING NOTES ON SHEET 5.

0.7 ACRES OF GRASS/FORB MIX. FINAL

SEEDING LOCATION TO BE FIELD FIT IN

COORDINATION WITH THE ECOLOGIST. REFER

TO SAND SURFACING NOTES ON SHEET 5.

GRASS/FORB MIX

CELL 6

CELL B

CELL 5

CELL 4

OH OH OH OH OH

OH OH

OH OH OH OH OH OH OH OH OH OH OH OH OH OH OH

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

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EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PLANTING PLAN 14 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

N E

- S

N E

- S

SCALE IN FEET

0 16080

TRANSPLANT SPHAGNUM

MOSS ALONG EDGE

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

ATLANTIC WHITE CEDAR WETLAND

COASTAL PLAIN PONDSHORE

SHRUB/FEN WETLAND

SANDPLAIN GRASSLAND

RED MAPLE WETLAND

EXISTING BUILDING

EXISTING GATE

LIMIT OF DISTURBANCE

TRANSITIONAL

NOTES:

1. PLANT ATLANTIC WHITE CEDAR (AWC) IN DENSE

CLUSTERS WITHIN AREAS APPROVED BY THE

INTER-FLUVE ECOLOGIST AND OWNER BASED ON

FAVORABLE HYDROLOGIC CONDITIONS. EACH

CLUSTER SHALL CONTAIN 30–40 TREES, SPACED

10–12 FT ON CENTER. SPACE CLUSTERS

APPROXIMATELY 175–200 FT ON CENTER. SALVAGED

SPHAGNUM SHALL BE PLACED ON THE GROUND

SURFACE OF AWC ZONES AS DIRECTED BY THE

OWNER'S REPRESENTATIVE.

2. TRANSITIONAL SEED SHALL BE APPLIED ON ALL

DISTURBED SIDE SLOPES WITHIN AND AROUND THE

PERIMETER OF THE BOG.

3. SANDPLAIN GRASSLAND SEED SHALL BE APPLIED ON

ALL DISTURBED UPLAND AREAS.

POND

FORESTED/SHRUB WETLAND WITH DENSE CLUSTERS

OF ATLANTIC WHITE CEDARS, SEE NOTE 1

PROPOSED GATE

CELL 3

CELL 2

CELL 1

O H

OH OH

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

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EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PLANTING PLAN 15 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

MATCHLINE - SHEET 16

N E

- S

SCALE IN FEET

0 16080

TRANSPLANT SPHAGNUM

MOSS ALONG EDGE

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

ATLANTIC WHITE CEDAR WETLAND

COASTAL PLAIN PONDSHORE

SHRUB/FEN WETLAND

SANDPLAIN GRASSLAND

RED MAPLE WETLAND

EXISTING BUILDING

EXISTING GATE

LIMIT OF DISTURBANCE

TRANSITIONAL

NOTES:

1. PLANT ATLANTIC WHITE CEDAR (AWC) IN DENSE

CLUSTERS WITHIN AREAS APPROVED BY THE

INTER-FLUVE ECOLOGIST AND OWNER BASED ON

FAVORABLE HYDROLOGIC CONDITIONS. EACH

CLUSTER SHALL CONTAIN 30–40 TREES, SPACED

10–12 FT ON CENTER. SPACE CLUSTERS

APPROXIMATELY 175–200 FT ON CENTER. SALVAGED

SPHAGNUM SHALL BE PLACED ON THE GROUND

SURFACE OF AWC ZONES AS DIRECTED BY THE

OWNER'S REPRESENTATIVE.

2. TRANSITIONAL SEED SHALL BE APPLIED ON ALL

DISTURBED SIDE SLOPES WITHIN AND AROUND THE

PERIMETER OF THE BOG.

3. SANDPLAIN GRASSLAND SEED SHALL BE APPLIED ON

ALL DISTURBED UPLAND AREAS.

POND

FORESTED/SHRUB WETLAND WITH DENSE CLUSTERS

OF ATLANTIC WHITE CEDARS, SEE NOTE 1

CELL A

220 Concord Avenue, 2nd Floor Cambridge, MA 02138

617.714.5537 www.interfluve.com

N :\P ro je ct Fi le s_

Ac tiv e\ R ed Br oo k_

C en tu ry

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M A\

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EYS, LP

AJ, NN

2/18/2026

NN, MM

24-05-11

MASSWILDLIFE

CENTURY BOG RESTORATION

CONSTRUCTION PLANS

PLANTING PLAN 16 22

SHEET

REVISION DESCRIPTION PROJECT

CHECKED

APPROVED

DRAWN

DATE

DESIGNED

DATEBYNO.

0 LP 6/16/2025 ISSUED FOR NOTICE OF INTENT

1 LP 7/1/2025 LOD REDUCED

2 EYS 2/18/2026 ISSUED FOR CONSTRUCTION

MATCHLINE - SHEET 15

SCALE IN FEET

0 16080

TAX PARCEL BOUNDARY

LEGEND

EXISTING CONTOUR (1')

ATLANTIC WHITE CEDAR WETLAND

COASTAL PLAIN PONDSHORE

SHRUB/FEN WETLAND

SANDPLAIN GRASSLAND

RED MAPLE WETLAND

EXISTING BUILDING

EXISTING GATE

LIMIT OF DISTURBANCE

TRANSITIONAL

NOTES:

1. PLANT ATLANTIC WHITE CEDAR (AWC) IN DENSE

CLUSTERS WITHIN AREAS APPROVED BY THE

INTER-FLUVE ECOLOGIST AND OWNER BASED ON

FAVORABLE HYDROLOGIC CONDITIONS. EACH

CLUSTER SHALL CONTAIN 30–40 TREES, SPACED

10–12 FT ON CENTER. SPACE CLUSTERS

APPROXIMATELY 175–200 FT ON CENTER. SALVAGED

SPHAGNUM SHALL BE PLACED ON THE GROUND

SURFACE OF AWC ZONES AS DIRECTED BY THE

OWNER'S REPRESENTATIVE.

2. TRANSITIONAL SEED SHALL BE APPLIED ON ALL

DISTURBED SIDE SLOPES WITHIN AND AROUND THE

PERIMETER OF THE BOG.

3. SANDPLAIN GRASSLAND SEED SHALL BE APPLIED ON

ALL DISTURBED UPLAND AREAS.

FORESTED/SHRUB WETLAND WITH

DENSE CLUSTERS OF ATLANTIC

WHITE CEDARS, SEE NOTE 1

NOTES:

1. TOPOGRAPHIC COMPLEXITY SHALL BE IMPLEMENTED IN

CELLS 3, 4, 5, 6, 7, AND B.

2. CONFIGURATION OF MOUNDS AND DEPRESSIONS WILL

VARY DEPENDING ON EXISTING VEGETATION AND ACCESS

CONSIDERATIONS.

3. TOPOGRAPHIC MOUNDS AND DEPRESSIONS ARE INTENDED

TO MIMIC NATURAL…

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