B08_Attachment_4_FOWA_241555_FOWA_Resurface_Lighthouse_Rd_MDE17-SF-0104_APPROVED_PLANS_040822.pdf

B-5

EXISTING GRADE

PROPOSED GRADE

SPOT GRADE

PROP. ACCESS ROAD

EX. TREE

PROP. STORM DRAIN

PROP. GRAVEL

TRANSITION NEW WORK/EX. WORK

EX. TREE LINE

+475

SOIL BORING LOCATION

STA. <REF>

LIMIT OF DISTURBANCE

SILT FENCE

EXISTING GRADE

STABILIZED CONSTRUCTION ENTRANCES

X X X X

PEDESTRIAN BARRIER

EARTH DIKE

BLAZE ORANGE CONSTRUCTION FENCE

AT GRADE INLET PROTECTION

SF SF SF

SUB-SHEET SHEET TITLE

CS-1

REGIONAL DIRECTOR, NATIONAL CAPITAL REGION

RECOMMENDED

SUPERINTENDENT, PARK

APPROVED

INDEX OF DRAWINGS

VICINITY MAP

DATE

COVER SHEET

CS-1

DEMOLITION PLAN

GRADING PLAN

C2

C3

GENERAL NOTES

C4

UNITED STATES DEPARTMENT OF INTERIOR

NATIONAL PARK SERVICE

SHEET #

COVER SHEET

FORT WASHINGTON

FORT WASHINGTON PARK

FORT WASHINGTON, MARYLAND

P K

W Y

G W

M E

M O

R

IA

L

FORT

W

AS

H

IN

GTO

N

R O

A D

CREEK

PISCATAWAY

SWAN C

REEK

P O

T O

M A

C

R

IV

E R

PARK

WASHINGTON

FORT

VIRGINIA

PARK

PISCATAWAY

HUNT

FORT

SWAN

CREEK ROAD

CHIEF, DIVISION OF LANDS, PLANNING & DESIGN

SITE DETAILS

LOCATION

PROJECT

SCALE: 1"=2000'

C5

C6

SEDIMENT CONTROL NOTES8 OF 13 C8

C9

C77 OF 13

10 OF 13 C10

C11

RESURFACE LIGHTHOUSE ROAD

LIGHTHOUSE

AREA MAP

SCALE: 1"=1000'SCALE OF FEET

01000 1000 2000

ABBREVIATIONS

UNDERGROUNDUG

STRUCTURESTR.

STATIONSTA.

STORM DRAINSD

SCHEDULESCH

PAVEMENTPVMT

POLYVINAL CHLORIDEPVC

PROPOSEDPROP.

LIMITS OF DISTURBANCELOD

HIGH DENSITY POLYETHYLENEHDPE

CONCRETECONC.

CORRUGATED METAL PIPECMP

PMIS No. 158054

LEGEND

REMOVE EXISTING PAVEMENT

X X X X X XREMOVE EXISTING UTILITY

SWM DRAINAGE DIVIDE

FINAL

NO. 17-SF-0104.

BY MDE AS DOCUMENTED IN A LETTER DATED OCTOBER 5, 2017, REFERENCE

4. THE STORMWATER MANAGEMENT CONCEPTUAL DESIGN WAS APPROVED

DATED JANUARY 5, 2018, REFERENCE NO. 2018 00346.

HISTORIC PROPERTIES AS STAMPED 2/7/2018 ON THE SUBMITTAL LETTER

3. THIS PROJECT HAS BEEN FOUND TO HAVE NO ADVERSE EFFECT ON

SAFETY AND HEALTH ADMINISTRATION (OSHA) GUIDELINES AND REGULATIONS.

2. ALL WORK SHALL BE IN ACCORDANCE WITH STANDARD OCCUPATIONAL

TEST PITS, PROBES, ETC. ARE ANTICIPATED. 1-800-252-7777 OR 811.

OF ALL UNDERGROUND UTILITIES WITHIN WORK ZONES WHERE DIGGING,

UTILITY AND PRIVATE UTILITY LOCATING SERVICE, IN ADVANCE, FOR MARKING

WORK. CONTRACTOR(S) SHALL BE RESPONSIBLE FOR CONTACTING MISS

LOCATING SERVICE 48 HOURS PRIOR TO COMMENCEMENT OF ON-SITE

1. UTILITY MARKING: NOTIFY MISS UTILITY AND OTHER QUALIFIED UTILITY

12 OF 13 C12 STORMWATER NOTES

STORMWATER DETAIL SHEET

STORMWATER PLAN

SEDIMENT CONTROL NOTES

SEDIMENT CONTROL DETAILS

SEDIMENT CONTROL PLAN

SITE DETAILS

CONTRACT No. 140P3020D0013

13 OF 13 C13 PLANTING PLAN

PROFESSIONAL CERTIFICATION

No. 25768, expiration date: 06/23/2023 engineer under the laws of the State of Maryland, license approved by me, and that I am a duly licensed professional I hereby certify that these documents were prepared or

KWCENGINEER:

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NATIONAL PARK SERVICE - NATIONAL CAPITAL REGION

UNITED STATES

OF

SHEET

DWG. NO.

DATE

DEPARTMENT OF THE INTERIOR

SUB SHEET NUMBERTITLE OF DRAWING

Mark Sheet InitialDateREVISION

DESIGNED

DRAWN

CHECKED

FORT WASHINGTON

FORT WASHINGTON PARK

STANTEC

CONSULTING, INC.

DIVISION OF LANDS, PLANNING & DESIGN

RESURFACE LIGHTHOUSE ROAD

02/09/2022

852-123412

20879

GAITHERSBURG, MD

SUITE 620

VILLAGE AVENUE

6 MONTGOMERY

2/14/2022

REVIEWED AND APPROVED FOR SEDIMENT

CONTROL AND STORMWATER MANAGEMENT

UNDER SECTIONS 4-106 AND 4-205

BY: COLLIN HILTNER

DATE:

MAYLAND DEPARTMENT OF THE ENVIRONMENT

SEDIMENT & STORMWATER PLAN REVIEW DIVISION

APRIL 8, 2022

ABBREVIATIONS

UNDERGROUNDUG

STRUCTURESTR.

STATIONSTA.

STORM DRAINSD

SCHEDULESCH

PAVEMENTPVMT

POLYVINAL CHLORIDEPVC

PROPOSEDPROP.

LIMITS OF DISTURBANCELOD

HIGH DENSITY POLYETHYLENEHDPE

CONCRETECONC.

CORRUGATED METAL PIPECMP

SCALE OF FEET

40040

C2

LEGEND

GRADING NOTES

REMOVE EXISTING PAVEMENT

X X X X X X REMOVE EXISTING UTILITY

DEMOLITION PLAN

1928 NGS MONUMENT 5.71

900 REBAR & CAP 104.53

901 REBAR & CAP 30.12

902 REBAR & CAP 6.55

DURING CONSTRUCTION

TO REMAIN. PROTECT

SEWER PUMP HOUSE

EX. TRANSFORMER AND

EASTINGNORTHINGID TYPE ELEV.

1302868.5700

1302358.8880

1301855.6207

1301796.0319

380547.3760

380975.0710

380694.5516

380799.0410

E: 1302023.99 N: 380817.86

E: 1302371.17 N: 380975.11

E: 1302835.04 N: 380576.01

SEE SHEET C9 FOR COMPLETE BORING LOGS.6.

TO NEW PIPES.

BE INSPECTED AND CLEARED PRIOR TO CONNECTION

EXISTING CULVERTS AND STORM DRAIN INLETS TO5.

END OF PROJECT.

WILL BE RE-INSTALLED BY CONTRACTOR AT

FEATURES DURING CONSTRUCTION. ALL ITEMS

SITE FURNITURE, SIGNS AND OTHER EXISTING

CONTRACTOR TO SALVAGE AND STORE ALL4.

FROM DRIPLINE.

TO PROVIDE TREE PROTECTION FENCING MIN. 5'

CANOPY AND ON TOP OF TREE ROOTS. CONTRACTOR

TREES AND TO AVOID STOCKPILING UNDER TREE

TO USE CAUTION WHEN WORKING AROUND EXISTING

ALL EXISTING TREES TO REMAIN. CONTRACTOR3.

ENGINEER IMMEDIATELY IF CONFLICT ARISES.

DAMAGE DONE TO EXISTING UTILITIES. CONTACT

THE CONTRACTOR IS RESPONSIBLE TO REPAIR ANY

UNDERGROUND UTILITIES WITHIN THE WORK AREA.

THE CONTRACTOR SHALL TEST PIT FOR EXISTING2.

AND SUPPLEMENTED WITH AVAILABLE GIS INFO.

PERFORMED BY STANTEC DATED APRIL 2014

TOPOGRAPHY OBTAINED FROM FIELD SURVEY1.

TO REMAIN

EX. BENCH

EDGE

EX. STREAM

PROFESSIONAL CERTIFICATION

No. 25768, expiration date: 06/23/2023 engineer under the laws of the State of Maryland, license approved by me, and that I am a duly licensed professional I hereby certify that these documents were prepared or

KWCENGINEER:

KCY

SAR

NATIONAL PARK SERVICE - NATIONAL CAPITAL REGION

UNITED STATES

OF

SHEET

DWG. NO.

DATE

DEPARTMENT OF THE INTERIOR

SUB SHEET NUMBERTITLE OF DRAWING

Mark Sheet InitialDateREVISION

DESIGNED

DRAWN

CHECKED

FORT WASHINGTON

FORT WASHINGTON PARK

STANTEC

CONSULTING, INC.

DIVISION OF LANDS, PLANNING & DESIGN

RESURFACE LIGHTHOUSE ROAD

02/09/2022

FINAL 3/2018 KWC

852-123412

20879

GAITHERSBURG, MD

SUITE 620

VILLAGE AVENUE

6 MONTGOMERY

W W

EX. DIRT PATH

EX.

GRAVEL

RI

VER

TR

AI

L

E X

G R

A V

L

T

A

IL

EX. CONC. WALK

EX. CO

N C.

W A

LK

SD

TO REMAIN

STATION

COMFORT

TO REMAIN

GATE

REMOVE 8"CMP

TO REMAIN

CONCRETE PAVING

REMAIN (TYP.)

EX. TREE TO

EQUIPMENT IN CIRCLE

CONSTRUCTION FENCE. NO

TO PROTECT STRUCTURE WITH

TO REMAIN. CONTRACTOR

EX. HISTORIC LIGHTHOUSE

TO REMAIN

CONCRETE DITCH

W W

G A

TE

EX. DIRT PATH

EX. CONC. WALK

EX. CO

N C.

W A

LK

S

S

S

S

S

C O

S

S

C O

SD

SD

MH

M E

E

BM

B-4

B-3

B-2

BM

B-1

SD

S

E

C O

C O

TE

SD

X

X

S

S

S

MH

CONTROL POINT ELEVATION TABLE

2/14/2022

1928 NGS MONUMENT 5.71

900 REBAR & CAP 104.53

901 REBAR & CAP 30.12

902 REBAR & CAP 6.55

EASTINGNORTHINGID TYPE ELEV.

1302868.5700

1302358.8880

1301855.6207

1301796.0319

380547.3760

380975.0710

380694.5516

380799.0410

B-5

SCALE OF FEET

40040

GRADING PLAN

C3

LEGEND

EXISTING GRADE

GRADING NOTES

PROPOSED GRADE

SPOT GRADE

PROP. ACCESS ROAD

EX. TREE

EX OUTFALL

TO EX GRADE AT

MATCH PIPE INVERT

PROP. STORM DRAIN

OF ROAD

EX. EDGE

PROP. GRAVEL

PROP. GRAVEL

IN LINE, TYPE, AND GRADE

PAVEMENT TO MATCH EX CONCRETE

TRANSITION NEW WORK/EX. WORK

EX. TREE LINE

STA. <REF>

DURING CONSTRUCTION

AND SEWER PUMP HOUSE

PROTECT EX. TRANSFORMER

CONCRETE DITCH

PORTION OF EX.

PROTECT REMAINING

STA. 0+00

+475

SOIL BORING LOCATION

PROP. BIOSWALE

CONSTRUCTION

RELOCATED DURING

EX. BENCH TO BE

EX. UG ELECTRIC

AT EX. ROAD

MATCH EX. GRADE

PAVEMENT TO

EX. OUTFALL

TO EX. GRADE AT

MATCH PIPE INVERT

E X

IN LINE AND GRADE

MATCH EX. ASPHALT

PAVEMENT TO

TO NEW PIPES.

BE INSPECTED AND CLEARED PRIOR TO CONNECTION

EXISTING CULVERTS AND STORM DRAIN INLETS TO4.

ENGINEER IMMEDIATELY IF CONFLICT ARISES.

DAMAGE DONE TO EXISTING UTILITIES. CONTACT

THE CONTRACTOR IS RESPONSIBLE TO REPAIR ANY

UNDERGROUND UTILITIES WITHIN THE WORK AREA.

THE CONTRACTOR SHALL TEST PIT FOR EXISTING3.

1991, VERTICAL CONTROLS: NAVD 1929

HORIZONTAL CONTROLS: MARYLAND STATE PLANE2.

AND SUPPLEMENTED WITH AVAILABLE GIS INFO.

PERFORMED BY STANTEC DATED APRIL 2014

TOPOGRAPHY OBTAINED FROM FIELD SURVEY1.

SEE DETAIL SHEET C12

PROP. D-2 INLET

PROFESSIONAL CERTIFICATION

No. 25768, expiration date: 06/23/2023 engineer under the laws of the State of Maryland, license approved by me, and that I am a duly licensed professional I hereby certify that these documents were prepared or

KWCENGINEER:

KCY

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NATIONAL PARK SERVICE - NATIONAL CAPITAL REGION

UNITED STATES

OF

SHEET

DWG. NO.

DATE

DEPARTMENT OF THE INTERIOR

SUB SHEET NUMBERTITLE OF DRAWING

Mark Sheet InitialDateREVISION

DESIGNED

DRAWN

CHECKED

FORT WASHINGTON

FORT WASHINGTON PARK

STANTEC

CONSULTING, INC.

DIVISION OF LANDS, PLANNING & DESIGN

RESURFACE LIGHTHOUSE ROAD

02/09/2022

FINAL 3/2018 KWC

852-123412

20879

GAITHERSBURG, MD

SUITE 620

VILLAGE AVENUE

6 MONTGOMERY

056 +

207 +

+062

303+3

1+

0+00

2+00

3+00

4+00

5+00

6+00

7+

8+0

9+00

10+00

11+00

11+50.76

N 381,137 E 1,302,547

N 380,576

E 1,302,835

EX100

R

' R

INV = 12.0

PROP. 18" HDPE

SD

HW-1

C4

C4

C10

SD

HW-2

C4

C1

C2

C3

C4

C5

C6

C7 C8

C9

SD

I-2

DA=98691 sqft

DA=129175 sqft

H D P E

P R

O P

SD

I-1

EX. STREAM EDGEEX. STREAM EDGE

W W

G A

TE

EX. DIRT PATH

EX. CONC. WALK

EX. CO

N C.

W A

LK

S

S

S

S

S

C O

S

S

C O

SD

SD

MH

M E

E

BM

C4

C4

6" HDPE

PROP

SCH 40 PVC

PERFORATED

PROP 6" HDPE

CONTROL POINT ELEVATION TABLE

2/14/2022

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

PLAN REVIEW DIVISION

4REGIONAL DIRECTOR, NATIONAL CAPITAL REGION

CHIEF, BRANCH DESIGN AND CONSTRUCTION

RECOMMENDED

SUPERINTENDENT, PARK

APPROVED

DATE

SITE DETAILS

C4

5"MIN.

C4

1 ROAD CROSS SECTION-1

ROAD CROSS SECTION-2

EX. GRADE

SLOPE TO

3:1 MAX.

C4

2 C4

4 CONNECT TO EX. CONCRETE PVMT

NOT TO SCALE

AGGREGATE CONC. DRIVE

EX. EXPOSED

JOINT MATERIAL

EXPANSION

INSTALL

TYPE AND GRADE

DRIVE IN LINE,

CONNECT TO EX.

ASPHALT JOINTS.

EXPANSION JOINT MATERIAL AT ALL CONCRETE TO

ELASTOMERIC TYPE SEALANT OR EQUIVALENT. INSTALL

CORK, TRIMMED AND SEALED WITH POLYURETHANE

2. EXPANSION JOINTS SHALL BE 1/2" PREFORMED

METHODS OF CONSTRUCTION.

SPECS FOR CONCRETE MATERIAL AND

1. CONTRACTOR SHALL REFER TO PROJECT

NOTES:

EX. GRADE

SLOPE TO

3:1 MAX.

C4

5 GRAVEL PAD CROSS SECTION

5% MAX SLOPE

2% MIN.

OF STONE

4" MIN DEPTH

4" OF #57 STONE

d =1" d =1/2" min95% MAX. DRY DENSITY

COMPACTED SUBGRADE TO

C4

95% MAX. DRY DENSITY

COMPACTED SUBGRADE TO

EXPOSED AGGREGATE PAVING SECTION

CONCRETE SURFACE COURSE

6" EXPOSED AGGREGATE

6"

AGGREGATE PAVEMENT

EX. ASPHALT w/ EXPOSED

REMOVE AND REPLACE

SEE DETAIL 21 ON SHEET C10

SWM BIO SWALE

3' WIDE

DIA. MATERIAL LENGTH

ROAD GEOTEXTILE

6"X6" #10 WELDED WIRE MESH

MIN. 2" BELOW SURFACE

6"X6" #10 WELDED WIRE MESH

SEE GRADING PLAN C3.

INSTALL EXPANSION JOINTS SPACED EVERY 25'.7.

2" BELOW SURFACE, 6"X6" #10 EPOXY COATED WIRE.

WELDED WIRE MESH TO BE INSTALLED A MINIMUM OF 6.

AREAS ARE SUPERELEVATED.

0+00 TO 2+00 AND 9+75 TO 11+50. ALL OTHER

PROVIDE CROWNED ROAD SURFACE STA.5.

TO EXISTING SWALES AND EXISTING DRAINAGE.

GRADE SHOULDERS TO DIRECT RUNOFF4.

"2 1 D50 =

CONCRETE BASE COURSE TO BE #57 STONE3.

AROUND VISITOR'S CENTER.

EXPOSED AGGREGATE PATH TO MATCH EXISTING ROAD 2.

CONCRETE MATERIAL AND METHODS OF CONSTRUCTION.

CONTRACTOR SHALL REFER TO PROJECT SPECS FOR 1.

NOTES:

5" MIN. CONCRETE BASE COURSE

I-1

IN

V

O U

.0

GROUND

EXISITING

T O

P

.0

HW-1

T

.2

STORM DRAIN PROFILE

VERT: 1" = 4'

SCALE HORIZ: 1"=20'

18" HDPE SOIL TIGHT 50 LF

6" HDPE PERFORATED 112 LF

18" HDPE @ 8.00%

IN

V

IN

.0

END WALL

PROP. TYPE C

GROUND

PROP.

EDGE

EX. STREAM

.5

6" HDPE SOIL TIGHT 36 LF

PROFESSIONAL CERTIFICATION

No. 25768, expiration date: 06/23/2023 engineer under the laws of the State of Maryland, license approved by me, and that I am a duly licensed professional I hereby certify that these documents were prepared or

KWCENGINEER:

KCY

SAR

NATIONAL PARK SERVICE - NATIONAL CAPITAL REGION

UNITED STATES

OF

SHEET

DWG. NO.

DATE

DEPARTMENT OF THE INTERIOR

SUB SHEET NUMBERTITLE OF DRAWING

Mark Sheet InitialDateREVISION

DESIGNED

DRAWN

CHECKED

FORT WASHINGTON

FORT WASHINGTON PARK

STANTEC

CONSULTING, INC.

DIVISION OF LANDS, PLANNING & DESIGN

RESURFACE LIGHTHOUSE ROAD

02/09/2022

FINAL 3/2018 KWC

852-123412

20879

GAITHERSBURG, MD

SUITE 620

VILLAGE AVENUE

6 MONTGOMERY

PIPE SCHEDULE

9' PAVEMENT

2%

(TYP)

SHOULDER

12" GRASSED

EX. GRADE

SLOPE TO

3:1 MAX.

9' PAVEMENT

2%

(TYP)

SHOULDER

12" GRASSED

MAX. CUT 6"

GRASS SWALE

1' WIDE

SECTION, SEE DETAIL 10 THIS SHEET

FOR EXPOSED AGGREGATE PVMT

SECTION, SEE DETAIL 10 THIS SHEET

FOR EXPOSED AGGREGATE PVMT

SWALE

EX. GRASS

2%

2/14/2022

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

C5

SITE DETAILS

C5

NOT TO SCALE

EXPANSION JOINT

1/2" CORK

JOINT FILLER

REMOVABLE TOP STRIP ON

1/2" SEALANT JOINT, FORM WITH

1/2"

SLAB TO SLAB REINFORCEMENT

CONCRETE JOINTS.

EXPANSION JOINT MATERIAL AT ALL CONCRETE TO

ELASTOMERIC TYPE SEALANT OR EQUIVALENT. INSTALL

CORK, TRIMMED AND SEALED WITH POLYURETHANE

2. EXPANSION JOINTS SHALL BE 1/2" PREFORMED

INSTALL #4 REBAR DOWEL. FILL VOID WITH EPOXY.

FOR DOWEL INSTALLATION. REMOVE ALL DUST AND

1. CONTRACTOR SHALL DRILL INTO EX. CONC. SLAB

NOTES:

WITH PREFORMED SLEEVE.

INSTALLED 12" O.C. PROVIDE

18" #4 SMOOTH DOWEL,

C5

NOT TO SCALE

EXPANSION JOINT

1/2" CORK

JOINT FILLER

REMOVABLE TOP STRIP ON

1/2" SEALANT JOINT, FORM WITH

1/2"

CONC. DRIVE

EXPOSED AGGREGATE

EXPANSION JOINT

CONC. DRIVE

EX. EXPOSED AGGREGATE

PROP. CONC. DRIVE

CONCRETE JOINTS.

EXPANSION JOINT MATERIAL AT ALL CONCRETE TO

ELASTOMERIC TYPE SEALANT OR EQUIVALENT. INSTALL

CORK, TRIMMED AND SEALED WITH POLYURETHANE

2. EXPANSION JOINTS SHALL BE 1/2" PREFORMED

MATCH EXISTING ROADS ONSITE.

EXPOSED AGGREGATE CONCRETE AT 25' O.C. TO

1. CONTRACTOR SHALL INSTALL EXPANSION JOINTS IN

NOTES:

PROFESSIONAL CERTIFICATION

No. 25768, expiration date: 06/23/2023 engineer under the laws of the State of Maryland, license approved by me, and that I am a duly licensed professional I hereby certify that these documents were prepared or

KWCENGINEER:

KCY

SAR

NATIONAL PARK SERVICE - NATIONAL CAPITAL REGION

UNITED STATES

OF

SHEET

DWG. NO.

DATE

DEPARTMENT OF THE INTERIOR

SUB SHEET NUMBERTITLE OF DRAWING

Mark Sheet InitialDateREVISION

DESIGNED

DRAWN

CHECKED

FORT WASHINGTON

FORT WASHINGTON PARK

STANTEC

CONSULTING, INC.

DIVISION OF LANDS, PLANNING & DESIGN

RESURFACE LIGHTHOUSE ROAD

02/09/2022

FINAL 3/2018 KWC

852-123412

20879

GAITHERSBURG, MD

SUITE 620

VILLAGE AVENUE

6 MONTGOMERY

2/14/2022

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

1928 NGS MONUMENT 5.71

900 REBAR & CAP 104.53

901 REBAR & CAP 30.12

902 REBAR & CAP 6.55

EASTINGNORTHINGID TYPE ELEV.

1302868.5700

1302358.8880

1301855.6207

1301796.0319

380547.3760

380975.0710

380694.5516

380799.0410

SHEET C7.

I-1. SEE DETAIL

PROTECTION AT

PROVIDE INLET

ONCE INSTALLED,

SCALE OF FEET

40040

C6

DURING CONSTRUCTION

TO REMAIN. PROTECT

SEWER PUMP HOUSE

EX. TRANSFORMER AND

LIMIT OF DISTURBANCE

SILT FENCE

LEGEND

EXISTING GRADE

STABILIZED CONSTRUCTION ENTRANCES

X X X X

SEDIMENT CONTROL NOTES

PEDESTRIAN BARRIER

EARTH DIKE

SEDIMENT CONTROL PLAN

LIMIT OF DISTURBANCE = 39,207 SQ.FT. OR 0.90 AC.

SEQUENCE OF CONSTRUCTION

BLAZE ORANGE CONSTRUCTION FENCE

AT GRADE INLET PROTECTION

PEDESTRIAN SAFETY NOTES

EQUAL AT THE DISCRETION OF THE PARK.

CONTRACTOR MAY INSTALL OWNER APPROVED

2. TYPICAL PEDESTRIAN BARRIER SHOWN BELOW.

NATIONAL PARK DURING CONSTRUCTION.

TO ENSURE THE SAFETY OF VISITORS TO THIS

PEDESTRIAN BARRIERS AND TEMPORARY FENCING

CONTRACTOR'S RESPONSIBILITY TO MAINTAIN

CENTER AND UPPER PARKING LOT. IT IS THE

ABLE TO ACCESS THE FORT GROUNDS, VISITOR

1. DURING CONSTRUCTION, VISITORS WILL STILL BE

SF SF SF

3. EROSION AND SEDIMENT CONTROLS WILL BE STRICTLY ENFORCED.

PRIOR TO AND AFTER A RAIN EVENT.

CONTROLS SHALL BE INSPECTED AND REPAIRED AS NECESSARY

DEVICES PRIOR TO COMMENCING EXCAVATION. SEDIMENT

2. THE CONTRACTOR SHALL INSTALL ALL SEDIMENT CONTROL

GIS INFORMATION.

STANTEC DATED APRIL 2014 AND SUPPLEMENTED WITH AVAILABLE

1. TOPOGRAPHY OBTAINED FROM FIELD SURVEY PERFORMED BY5

(1 DAY)

10.COMPLETE AS BUILT SURVEY WITH PHOTOS AND SUBMIT TO MDE.

DISTURBED BY THEIR REMOVAL. (3 DAYS)

9. REMOVE SEDIMENT CONTROL DEVICES AND STABILIZE ALL AREAS

8. STABILIZE ALL REMAINING DISTURBED AREA. (1 WEEK)

INSPECTOR, COMMENCE INSTALLATION OF STORMWATER. (1 WEEK)

FACILITIES. WITH PERMISSION FROM SEDIMENT CONTROL

7. STABILIZE ALL AREAS DRAINING TO PROPOSED STORMWATER

(3 MONTHS)

6. COMMENCE FINE GRADING, ROAD AND STORM DRAIN INSTALLATION.

AND CLEARED PRIOR TO CONNECTION TO NEW PIPES. (1 DAY)

5. EXISTING CULVERTS AND STORM DRAIN INLETS TO BE INSPECTED

4. COMMENCE DEMOLITION OF ROAD. (1 WEEK)

THE WORK AREA. (3 DAYS)

AND PEDESTRIAN BARRIERS TO BAR VISITORS FROM ENTERING

3. INSTALL SEDIMENT CONTROL DEVICES. USE ORANGE SAFETY FENCE

REPRESENTATIVE AND THE SITE ENGINEER. (1 DAY)

WITH THE MDE SEDIMENT CONTROL INSPECTOR, THE OWNER'S

A PRE-CONSTRUCTION MEETING MUST BE CONDUCTED ON-SITE

2. PRIOR TO INSTALLING SEDIMENT CONTROL MEASURES OR GRADING,

ACTIVITY TO SCHEDULE A PRE-CONSTRUCTION MEETING.

A MINIMUM OF 7 DAYS IN ADVANCE OF ANY EARTH DISTURBANCE

1. NOTIFICATION OF MDE'S COMPLIANCE PROGRAM AT 410-537-3510

I

HW

I

SD

Ex

Ex

DA=24,442 sqft

DA=104,732 sqft

DA=179,903 sqft

PROFESSIONAL CERTIFICATION

No. 25768, expiration date: 06/23/2023 engineer under the laws of the State of Maryland, license approved by me, and that I am a duly licensed professional I hereby certify that these documents were prepared or

KWCENGINEER:

KCY

SAR

NATIONAL PARK SERVICE - NATIONAL CAPITAL REGION

UNITED STATES

OF

SHEET

DWG. NO.

DATE

DEPARTMENT OF THE INTERIOR

SUB SHEET NUMBERTITLE OF DRAWING

Mark Sheet InitialDateREVISION

DESIGNED

DRAWN

CHECKED

FORT WASHINGTON

FORT WASHINGTON PARK

STANTEC

CONSULTING, INC.

DIVISION OF LANDS, PLANNING & DESIGN

RESURFACE LIGHTHOUSE ROAD

02/09/2022

FINAL 3/2018 KWC

852-123412

20879

GAITHERSBURG, MD

SUITE 620

VILLAGE AVENUE

6 MONTGOMERY

W W

EX. DIRT PATH

EX.

GRAVEL

RI

VER

TR

AI

L

E X

G R

A V

A

IL

EX. CONC. WALK

EX. CO

N C.

W A

LK

B-4

B-3

B-2

SD

X

X

X

X

X

LIMIT OF DISTURBANCE

LIM

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DIS

TURBANCE

LIM

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A N C E

SHEET C7.

SEE DETAIL

EARTH DIKE TYPE A-2.

CLEANWATER

SHEET C7.

EX-100. SEE DETAIL

PROTECTION AT

PROVIDE INLET

X

X

X

X

X X

X

X

X

X

XX

X

X X

X

X

X X

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X

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X X

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X X

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TO REMAIN

EX. GATE

SEE DETAIL THIS SHEET

PEDESTRIAN BARRIER (TYP.)

E N

F

E A

H

K

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A

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B E

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M O

V E D

F R

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A C

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P

A R

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IN

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X

X X

SHEET C7.

SEE DETAIL

DIVERSION FENCE.

CLEANWATER

SHEET C7.

SEE DETAIL

EARTH DIKE TYPE A-2

CLEARWATER

W W

G A

TE

EX. DIRT PATH

EX. CONC. WALK

EX. CO

N C.

W A

LK

S

S

S

S

S

C O

S

S

C O

SD

SD

MH

M E

E

BM

056 +

207 +

+062

303+3

1+

0+00

2+00

3+00

4+00

5+00

6+00

7+

8+0

9+00

10+00

11+00

11+50.76R

' R

H D P E

P R

O P

EX. STREAM EDGE

BM

6" HDPE

PROP

SCH 40 PVC

PERFORATED

PROP 6" HDPE

C/O

B-1

E

C O

C O

TE

D

SHEET C7.

PER DETAIL ON

WITH 'J-HOOKS'

INSTALL SILT FENCE

SD

S

S

S

MH

CONTROL POINT ELEVATION TABLE

2/14/2022

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

CROSS SECTION

INLET GRATE

WIRE TIES

6 IN

6 IN

6 IN

OVERLAP

6 IN

6 IN

6 IN

PLAN / CUT AWAY VIEW

AGIP

IN STONE2

1 TO 14

IN STONE2

1 TO 14

NONWOVEN GEOTEXTILE

NONWOVEN GEOTEXTILE

GEOTEXTILE AND STONE.

CLOGGED. WHEN THIS OCCURS, REMOVE ACCUMULATED SEDIMENT AND CLEAN, OR REPLACE

INLET PROTECTION DOES NOT COMPLETELY DRAIN WITHIN 24 HOURS AFTER A STORM EVENT, IT IS

SEDIMENT AFTER EACH RAIN EVENT TO MAINTAIN FUNCTION AND AVOID PREMATURE CLOGGING. IF

STORM DRAIN INLET PROTECTION REQUIRES FREQUENT MAINTENANCE. REMOVE ACCUMULATED 4.

THE GRATE.

INCH STONE OR EQUIVALENT RECYCLED CONCRETE 6 INCHES THICK ON 2

1 TO 14

3PLACE CLEAN 3.

SECURE WITH WIRE TIES AND SET GRATE BACK IN PLACE.

LIFT GRATE AND WRAP WITH NONWOVEN GEOTEXTILE TO COMPLETELY COVER ALL OPENINGS. 2.

USE NONWOVEN GEOTEXTILE AS SPECIFIED IN SECTION H-1 MATERIALS.1.

CONSTRUCTION SPECIFICATIONS

MAXIMUM DRAINAGE AREA = 1 ACRE

STANDARD SYMBOL

PROTECTION

AT-GRADE INLET2-9DETAIL E-

WATER MANAGEMENT ADMINISTRATION

MARYLAND DEPARTMENT OF ENVIRONMENT

MARYLAND STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL

NATURAL RESOURCES CONSERVATION SERVICE

U.S. DEPARTMENT OF AGRICULTURE

IN HARDWARE CLOTH4

CLOTH

HARDWARE

IN GALVANIZED4

b c

FLOW

A-1

CROSS SECTION

2:1 SLOPE OR FLATTER

2:1 SLOPE OR FLATTER

PLAN VIEW

FLOW CHANNEL STABILIZATION

AND FLOW DEPTH

REQUIRED FLOW WIDTH

GRADE TO PROVIDE

a d

0.5% MIN. TO 10% MAX. SLOPE

CONTINUOUS GRADE

ON FLOW CHANNEL SIDE OF DIKE.

PLACE DESIGNATION (e.g. A-1)

A MINIMUM OF 7 INCHES AND FLUSH WITH GROUND.

4 TO 7 INCH STONE OR EQUIVALENT RECYCLED CONCRETE PRESSED INTO SOIL A-3/B-3

SEED WITH SOIL STABILIZATION MATTING OR LINE WITH SOD.A-2/B-2

DIVERSION.)

SEED WITH STRAW MULCH AND TACK. (NOT ALLOWED FOR CLEAR WATER A-1

WITH SECTION B-4 VEGETATIVE STABILIZATION.

CONTINUOUSLY MEET REQUIREMENTS FOR ADEQUATE VEGETATIVE ESTABLISHMENT IN ACCORDANCE

MAINTAIN POSITIVE DRAINAGE. KEEP EARTH DIKE AND POINT OF DISCHARGE FREE OF EROSION, AND

MAINTAIN LINE, GRADE, AND CROSS SECTION. REMOVE ACCUMULATED SEDIMENT AND DEBRIS, AND 7.

APPROVED PLAN.

OF REMOVAL STABILIZE DISTURBED AREA WITH TOPSOIL, SEED, AND MULCH, OR AS SPECIFIED ON

UPON REMOVAL OF EARTH DIKE, GRADE AREA FLUSH WITH EXISTING GROUND. WITHIN 24 HOURS 8.

WATER DIVERSION WITHIN 24 HOURS OF INSTALLATION.

STABILIZE EARTH DIKE WITHIN THREE DAYS OF INSTALLATION. STABILIZE FLOW CHANNEL FOR CLEAR 6.

PROVIDE OUTLET PROTECTION AS REQUIRED ON APPROVED PLAN.5.

DUE TO FIELD CONDITIONS AS NECESSARY TO MAINTAIN POSITIVE DRAINAGE.

CONSTRUCT FLOW CHANNEL ON AN UNINTERRUPTED, CONTINUOUS GRADE, ADJUSTING THE LOCATION 4.

COMPACT FILL.3.

PROJECTIONS OR OTHER IRREGULARITIES ARE NOT ALLOWED.

EXCAVATE OR SHAPE EARTH DIKE TO LINE, GRADE, AND CROSS SECTION AS SPECIFIED. BANK 2.

MATERIAL SO AS NOT TO INTERFERE WITH PROPER FUNCTION OF EARTHDIKE.

REMOVE AND DISPOSE OF ALL TREES, BRUSH, STUMPS, OBSTRUCTIONS, AND OTHER OBJECTIONABLE 1.

CONSTRUCTION SPECIFICATIONS

DIKE TYPE

A B d - FLOW DEPTH c - FLOW WIDTH b - DIKE WIDTH a - DIKE HEIGHT

12 IN MIN.

4 FT MIN.

24 IN MIN.

18 IN MIN.

24 IN MIN.

6 FT MIN.

36 IN MIN.

30 IN MIN.

GROUND

EXISTING

STANDARD SYMBOL

EARTH DIKEDETAIL C-1

WATER MANAGEMENT ADMINISTRATION

MARYLAND DEPARTMENT OF ENVIRONMENT

MARYLAND STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL

NATURAL RESOURCES CONSERVATION SERVICE

U.S. DEPARTMENT OF AGRICULTURE

FLOW

POSTS

CROSS SECTION

ELEVATION

STEP 1 STEP 2

GROUND

UNDISTURBED

INTO GROUND

8 IN MIN. DEPTH

THE GROUND

A MIN. OF 16 IN INTO

FENCE POST DRIVEN

FENCE SECTIONS (TOP VIEW)

JOINING TWO ADJACENT SILT

CENTER TO CENTER

6 FT MAX.

DRIVEN MIN. 16 IN INTO GROUND

36 IN MIN. FENCE POST LENGTH

POST LENGTH

36 IN MIN. FENCE

STEP 3

STAPLE

1 OF 2 2 OF 2

SF

ABOVE GROUND

FENCE POST 18 IN MIN.

TWIST POSTS TOGETHERSTAPLE

STAPLE STAPLE

STAPLE STAPLE

STAPLESTAPLE

WOVEN SLIT FILM GEOTEXTILE

16 IN MIN. HEIGHT OF

GEOTEXTILE

WOVEN SLIT FILM

OF GEOTEXTILE.

THE SOIL ON BOTH SIDES

BACKFILL AND COMPACT

INTO THE GROUND.

MIN. OF 8 IN VERTICALLY

EMBED GEOTEXTILE

IN SILT FENCE

OF THE SILT FENCE.

45 DEGREES TO THE MAIN FENCE ALIGNMENT TO PREVENT RUNOFF FROM GOING AROUND THE ENDS

EXTEND BOTH ENDS OF THE SILT FENCE A MINIMUM OF FIVE HORIZONTAL FEET UPSLOPE AT7.

ACCORDANCE WITH THIS DETAIL.

WHERE TWO SECTIONS OF GEOTEXTILE ADJOIN: OVERLAP, TWIST, AND STAPLE TO POST IN 6.

COMPACT THE SOIL ON BOTH SIDES OF FABRIC.

EMBED GEOTEXTILE A MINIMUM OF 8 INCHES VERTICALLY INTO THE GROUND. BACKFILL AND 5.

REQUIREMENTS IN SECTION H-1 MATERIALS.

INSPECTION/ENFORCEMENT AUTHORITY SHOWING THAT THE GEOTEXTILE USED MEETS THE

PROVIDE MANUFACTURER CERTIFICATION TO THE AUTHORIZED REPRESENTATIVE OF THE 4.

AND MID-SECTION.

GEOTEXTILE SECURELY TO UPSLOPE SIDE OF FENCE POSTS WITH WIRE TIES OR STAPLES AT TOP

USE WOVEN SLIT FILM GEOTEXTILE AS SPECIFIED IN SECTION H-1 MATERIALS AND FASTEN 3.

APART.

USE 36 INCH MINIMUM POSTS DRIVEN 16 INCH MINIMUM INTO GROUND NO MORE THAN 6 FEET 2.

NOT LESS THAN 1 POUND PER LINEAR FOOT.

AN ALTERNATIVE TO WOODEN POST USE STANDARD "T" OR "U" SECTION STEEL POSTS WEIGHING

INCH (MINIMUM) SQUARE CUT OF SOUND QUALITY HARDWOOD. AS 16

3 X 14

3USE WOOD POSTS 11.

CONSTRUCTION SPECIFICATIONS

OCCURS, REINSTALL FENCE.

SEDIMENT REACHES 25% OF FENCE HEIGHT. REPLACE GEOTEXTILE IF TORN. IF UNDERMINING

OR WHEN REMOVE ACCUMULATED SEDIMENT AND DEBRIS WHEN BULGES DEVELOP 8.

B A

A

A

B

B

B

A

STANDARD SYMBOL

SILT FENCEDETAIL E-1SF

STANDARD SYMBOL

SILT FENCEDETAIL E-1

WATER MANAGEMENT ADMINISTRATION

MARYLAND DEPARTMENT OF ENVIRONMENT

MARYLAND STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL

NATURAL RESOURCES CONSERVATION SERVICE

U.S. DEPARTMENT OF AGRICULTURE

WATER MANAGEMENT ADMINISTRATION

MARYLAND DEPARTMENT OF ENVIRONMENT

MARYLAND STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL

NATURAL RESOURCES CONSERVATION SERVICE

U.S. DEPARTMENT OF AGRICULTURE

CONFIGURATION

FINAL

FE

ET

M

IN

IM

U M

STANDARD SYMBOL

X

NOTES:

1. Root damage should be avoided.

2. Protective signage is required.

3. Device should be maintained throughout construction.

ANCHOR POSTS MUST BE

INSTALLED TO A DEPTH OF

NO LESS THAN 1/3 OF THE

TOTAL HEIGHT OF POST

USE 8" WIRE 'U'

TO SECURE FENCE

BOTTOM

MAXIMUM 8 FEET

USE 2"x4" LUMBER

FOR CROSS BRACING

HIGHLY VISABLE

FLAGGING

ANCHOR POSTS SHOULD BE

MINIMUM 2" STEEL 'u' CHANNEL

OR 2"x2" TIMBER, 6' IN LENGTH

BLAZE ORANGE PLASTIC MESH

C7

SD I-1

INLET EX-100 AND

TO BE USED AT

BLAZE ORANGE CONSTRUCTION FENCE

SEDIMENT CONTROL DETAILS

*MDE APPROVED SEDIMENT CONTROL PLAN

Flow

Surface Ground

DF

Sheeting on Both Sides of Fence UV Resistant Impermeable

MAXIMUM DRAINAGE AREA = 2 ACRES

STANDARD SYMBOL

U.S. DEPARTMENT OF AGRICULTURE

NATURAL RESOURCES CONSERVATION SERVICE

MARYLAND STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL

MARYLAND DEPARTMENT OF ENVIRONMENT

WATER MANAGEMENT ADMINISTRATION

ELEVATION

SECTION

CONSTRUCTION SPECIFICATIONS

DETAIL C-9 DIVERSION FENCE

10 Feet Max.

4 Feet Min. Along Flow Surface or Provide Soil Stabilization Matting

Extend Impermeable Sheeting

Impermeable Sheeting Covered with

Chain Link Fence

Aluminum Posts Galvanized Steel or

Inch Diameter 8

Aluminum Posts Galvanized Steel or

Inch Diameter 8

Secure With Wire Ties Top of Fence and

Fold Sheeting Over

34 Inches Min.

36 Inches Min.

Min.

8 Inches

34 Inches Min.

into Ground Sheeting 8 Inches Min.

Embed Impermeable occurs, reinstall fence.

sediment and debris. Maintain positive drainage. Replace impermeable sheeting if torn. If undermining

7. Keep flow surface along diversion fence and point of discharge free of erosion. Remove accumulated downgrade.

6. When two sections of sheeting adjoin each other, overlap by 6 inches and fold with seam facing

Soil stabilization matting may be used in lieu of impermeable sheeting along flow surface.

5. Extend sheeting a minimum of 4 feet along flow surface and embed end a minimum of 8 inches into ground.

inches at top, mid section, and below ground surface.

4. Secure 10 mil or thicker UV resistant, impermeable sheeting to chain link fence with ties spaced every 24

3. Fasten chain link fence securely to the fence posts with wire ties.

further than 10 feet apart. The posts do not need to be set in concrete.

2. Use 2-3/8 inch diameter galvanized steel posts of 0.095 inch wall thickness and six foot length spaced no

1. Use 42 inch high, 9 gauge or thicker chain link fencing (2-3/8 inch maximum opening).

PROFESSIONAL CERTIFICATION

No. 25768, expiration date: 06/23/2023 engineer under the laws of the State of Maryland, license approved by me, and that I am a duly licensed professional I hereby certify that these documents were prepared or

KWCENGINEER:

KCY

SAR

NATIONAL PARK SERVICE - NATIONAL CAPITAL REGION

UNITED STATES

OF

SHEET

DWG. NO.

DATE

DEPARTMENT OF THE INTERIOR

SUB SHEET NUMBERTITLE OF DRAWING

Mark Sheet InitialDateREVISION

DESIGNED

DRAWN

CHECKED

FORT WASHINGTON

FORT WASHINGTON PARK

STANTEC

CONSULTING, INC.

DIVISION OF LANDS, PLANNING & DESIGN

RESURFACE LIGHTHOUSE ROAD

02/09/2022

FINAL 3/2018 KWC

852-123412

20879

GAITHERSBURG, MD

SUITE 620

VILLAGE AVENUE

6 MONTGOMERY

2/14/2022

APPROVED

BY: COLLIN HILTNER

MD DEPT ENVIRONMENT

SEDIMENT & STORMWATER

EROSION AND SEDIMENT CONTROi NOTES 1 . The con tra ctor sha l l not ify M D E at ( 4 1 0) 537 -35 1 0 seven (7) d ays before co m me nc i ng a ny lan d d isturb i ng a ct ivity an d , un less waived by M D E , s h a l l be req u i red to ho l d a pre- construct ion meet i ng betwee n project representat ives a n d a rep resentat ive of M D E .

2 . T h e con tra ctor s h a l l not ify M D E i n writ i ng a n d b y te lephone at the fol low i ng po i nts :

A. The req u i red pre-constru ct ion meet i ng .

B . Fo l l ow i ng in sta l l a t ion of sed iment con!ro l measures.

C. D u r i n g fhe insta l l a t ion of se d i ment basins (to be converted i nto permanent stormwater m o n o g_ement stru ctu res.) at the req u i red i nspect ion po i nts (see I n spect ion "Chec kl ist on p l an) . Not ificat ion pr ior to commen c i ng constru ct ion of ea c h step is man d atory.

D . P-rior to remova l or mod if i cat ion of a ny sed i ment contro l stru ct u re(s) .

E . P rior to remova l of a l l se d i ment contro l d ev i ces.

F. P rior to f ina l a c ceptan ce .

3 . Th e p lan a pp rova l l ette r, a p p roved e rosion an d se d i m e nt con trol p l a ns , d a i ly log books , a n d test re ports s h a l l be ava i l ab le at the s ite for i nspect ion -by d u ly a u thorized off i c ia l s of M D E a n d the agen cy respons i b le for th e project .

4 . The con tra ctor sha l l constru ct a l l eros ion and sed iment contro l measures per th e ap proved p lan a nd constru ct ion sequen ce a n d s h a l l have them i nspected an d a pproved by the M D E i nspector p rior to beg i nn i ng a ny other l a n d d isturban ces. M i nor sed i ment contro l d evi ce locat ion a djustm e nts may be ma d e i n the f ie ld w ith the a pprova l of the M D E i n s pector . The contra ctor sha l l ensure that a l l runoff from d isturbed a reas is d i rected to the sed i ment contro l d ev i ces a n d s h a l l n o t rem ove a ny erosion o r sed i ment contro l m easure w ithout p rior perm iss ion f rom M DE i nspector. The contra ctor s h a l l obta i n p rio r agen cy an d M D E a p p rova l for mod if icatio ns to the e rosion a n d sed i ment con trol p l a n an d/or seq uen ce of constru ct ion .

5 . The M DE inspector has th e option of req u i ri ng a d d it iona l safety or sed iment contro l mea s ures, if d eemed necessary.

6 . The con tra ctor s h a l l prote ct a l l po i nts of constru ct ion inqres s a n d egress to preve nt the d epos it ion of mater ia ls on to pub l i c roa as . Al l mater ia ls depos ited onto p u b l ic roa d s sha l l be removed i m m ed iately.

7. The con tra ctor sha l l i n s pect d a i ly an d ma i ntain cont i nu ous ly i n a n effect ive operat i ng con d it ion a l l e ros ion a n d sed iment con trol measu res u n t i l s u c h t ime a s they a re removed with prior pe rm i s s ion from the M DE i nspector.

constru ct ion sha l l be U t i l ity constru ct ion s h a l l o f d i stu rbance . Ca l l *M iss to the sta rt of work. When

8. Eros ion a n d sed i ment contro l for ut i l i ty prov id ed i n accord a n ce w ith a p p roved p lans .

on ly be for a reas w ith i n the de l i neated l i m it U t i lity* at 1 - 800-257-7777 48 hours p rior same d ay sta b i l izat ion is a pproved :

A. Excavated trenc h materia l s h a l l be p la ced on the h ig h s i d e of the t re n c h .

B . Tren c hes f o r u t i l ity i nsta l l a t ion sha l l b e ba c kf i l l ed , compa cted , a n d sta b i l i zed at the en d of ea c h work i ng d ay. No mo re trenc h s h a l l be opened t h a n ca n be comp leted the same d ay.

9 . Al l water rem oved from ex cavated a reas s h a l l be passed th rough an M D E a p p roved d ewater i n g p ract i ce or p u m ped to a sed i ment t ra p o r bas i n p rior t o d isc h a rge t o a fun ct iona l storm d ra i n system or to sta b le g ro u n d s u rfa c e .

1 0 . Con c rete washout stru ct u res sha l l be used when conc rete truc ks, d rums, pu mps , c h utes, o r oth e r eq u i pment is rin sed or c l ea ned o n - s ite.

1 1 . Construct ion a ct ivit ies p rodu c i ng d ust sha l l i mpl e ment contro l m easures to avo i d the s u s pen s ion of d ust part ic les a n d/or prevent d ust from b low i ng off -s ite or to a reas w ithout treatment .

1 2 . Fo l l ow i ng in itia l so i l d i sturbance or re - d i st u rbance , permanent o r tem pora ry sta b i l izat ion sha l l be com pleted w ith i n :

A . Th ree (3) ca l e n d a r d ays as t o t h e s u rface o f a l l per i meter cont ro ls , d i kes, swa les , d itc hes , peri meter s lopes, a n d a l l s l opes steeper t h a n 3 horizonta l t o 1 ve rti ca l (3 : 1 ) ; a n d

B . Seven (7) ca l e n d a r d ays as to a l l otlie r d istu rbed or g ra d ed areas on the proJect s ite not u n d er a ctive g ra d in g .

1 3 . Vegetat ive sta b i l ization sh a l l b e perfo rmed i n accord a n ce w ith t h e 20 1 1 M a ry la nd Sta n d a rd s a n d Spec if i cat ions f o r Soi l Erosion a n d Se d i ment Contro l . Refer t o a p p ropr iate spec if icat ions for te m pora ry seed i ng , permanent seed i n g , m u l c h ing , sod d i n g , a n d g roun d cove rs.

1 4 . Wh e n seed i n g , a l l d istu rbed a reas with s lopes f la tter than 2: 1 sha l l be stab i l ized" w ith 4 i n c hes of topso i l , seed , a n d m u l c h . Al l d isturbed a reas w ith s lopes 2 : 1 o r steeper s h a l l be stab i l ized w ith matt i ng ove r 2 i n c h es o f topsoi l a n d seed .

1 5 . Al l sed iment bas i n s , t ra p emban kments a nd s lopes , peri meter d ikes, swa les a n d al l d isturbed s lopes stee pe r or eq u a l to 3 : 1 sha l l be sta b i l i zed w ith seed an d a n c hored straw m u l c h , sod , or other approved sta b i l i zat ion measures , a s soon a s poss i b le but no l a ter t h a n t h ree (3) ca l e n d a r d ays after esta bl is h m e nt . Al l a reas d isturbed outs i d e of th e per i meter sed i ment control system s h a l l be m i n i mized . Ma i ntenan ce sha l l be performed a s n ecessa ry to e n s u re cont i n u ed sta b i l i zat ion .

1 6. Perma nent swa l es or o ther po i nts o f con centrated water f l ow s h a l l b e sta b i l ized w ith seed a n d a n a p p roved eros ion control matt i n g , sod , ri p - ra p , o r other a pproved sta b i l ization m ea s ures.

1 7 . For stoc kp i l e s lopes steeper t h a n 3 horizonta l to 1 vert i ca l (3 : 1 ) , t h e contra ctor s h a l l a pply see d a n d a n c hored straw m u l c h , sod , o r other approved sta b i l izat ion measu res t o t h e fa ce o f t h e stoc kp i l e w ith i n t h ree (3) ca len d a r d ays of a ct ivity havi ng cease d on the respect ive face . For s lopes 3 : 1 o r f la tter , the cont ra ctor s h a l l O RPlY sta b i l i zat ion measures to the fa ce of the stoc kp i l e w ith i n seven (7 J c a len d a r d ays of a ct iv ity havi ng ceased on the respect ive fa ce .

Ma i ntenan ce sha l l be perfo rmed as necessary to ensure cont i n u ed sta b i l i zat ion .

1 8 . For f i n is hed g ra d i ng , the con tra ctor sha l l provid e a d equate g ra d ients to p reve nt water fro m pon d i ng for mo re than twenty-four \24) h o u rs after the end of a ra infa l l event . D ra i nage courses a n d swa le f low a reas may take as long as forty-e ight (48) h o u rs after the en d of a rainfa l l event to d ra i n . Areas d es igned" to have sta n d i ng water sha l l not be req u i re d to m eet th is req u i rement .

1 9 . Where d eemed a ppropriate by the eng i neer o r i nspector, sed iment bas i ns a n d t raps may n eed to be s u rrou nd ed w ith an a p p roved safety fence. The fen ce mu st conform to l oca l ord i nan ces a n d reg u lat ions . The d eve loper or owner sha l l c hec k w ith loca l bu i l d i ng offic ia l s on a pp l ica b l e safety req u i reme nts . Where safety fen ce is d eemed a ppropriate an d l oca l ord i nan ces d o not spec ify fen c i ng s izes and types , the fol low i ng s h a l l be used as a m i n i m u m sta n d a rd : The safety fe n ce s h a l l be ma d e of we l d e d w i re a n d at l east 42 inches h ig h , have posts spa ced no fa rther a p a rt than 8 feet, have mesh open ings no greater than 2 i n c hes i n w i d th and 4 i nc hes i n he ig ht w ith a m i n i m u m 01 1 4 g a u g e w i re. Safety fe n ce s h a l l be ma i nta i n ed a n d i n goad con d it ion at a l l t imes .

20 . Al l sed iment tra p d epth d i mens ions a re re lat ive to th e out l et e levat io n . Al l traps s h a l l have a sta b le ou tfa l l . Al l traps a n d bas i ns sha l l h ave sta b le i nf low po i nts.

2 1 . Sed i ment s h a l l be removed a n d the t ra p or bas i n restored to its o rig ina l d imens ions when the sed im e nt has a c c u m u l ated to one q u a rter of the tota l d epth of the trap or bas i n . Tota l d epth s h a l l be measured from the tra p or bas i n bottom ta the c rest of the out let .

22 . Sed i ment re moved from tra ps (a nd bas i ns) sha l l be p la ced a n d sta b i l ized i n approved a reas, but not w ith i n a f lood p la i n , wet l a n d or t ree- save area . When p u m p ing sed i ment la d en water, the d isc h a rge sha l l be d i rected ta a n MDE approved sed i m e nt t ra p p i ng d ev ice pr ior to re lease from the s ite. A s u m p p it may be used if sed iment tra ps th e m se lves are be i n g p u m ped out .

2 3 . Prior to remova l of sed i ment contro l measures, the contra ctor s h a l l sta b i l ize a n d have estab l ishe d perma nent stab i l izat ion for a l l contr ibutory d isturbed a reas us i ng sod or a n a p p roved permanent seed m ixture w ith req u i red so i l amen d me nts an d a n a pp roved an c hored m u l c h . Wood f ibe r m u l c h ma)/ on ly be used in seed i ng season where the s lope d oes not exceed 1 0% a nd g ra d i ng has been d one to p romote sheet f low d ra inage . Areas b ro u g h t to f i n ished g ra d e d ur i ng the seed i ng season s h a l l 15e permanent ly sta b i l ized a s soon as possib l e , but not lafer than th ree (3) ca len d a r d ays after esta b l i shment for s lopes steeper than 3 horizonta l to 1 vertica l (3 : 1 ) a n d seven (7) ca lend a r d ays for f l a tte r s lopes . When p roperty is b rought to f i n ish ed g ra d e d u ring the months of Novembe r thro u g n Febru a ry, an d perma nent stab i l i zat ion is foun d to be i m p ra ctica l , tempora r_y seed a n d a n c hored straw m u l c h s h a l l be app l ied to d isturbed areas . Th e fi na l perma nent sta b i l izat ion of su c h property s h a l l be app l ied by M a rch 1 5 or earl ie r if g roun d a n d weather con d it ions a l low.

24 . Tem pora ry sed i ment con trol d evices s h a l l be re moved w ith perm iss ion of the M D E i n s pector w ith i n th i rty (30) ca lend ar d ays fol l ow i ng estab l ishment of pe rma nent sta b i l i zat ion i n a l l contri butory d ra i nage a reas . Upon rem ova l of sed i ment contro l d evi ces , the a rea d isturbed b)I remova l s h a l l be sta b i l ized w ith to pso i l , seed , a n d m u l c h , o r as s pec i f i e d , w ith in 2 4 h o u rs o f sa id rem ova l . Stormwate r management stru ct u res used tem pora ri ly for sed i ment contro l sha l l be converted to the permanent conf ig u rat ion w ith i n th is t ime period as w e l l .

2 5 . Off- site spo i l or borrow a reas on State o r federa l p roperty sha l l have prior a p p rova l by M D E a nd other app l i cab le State, fed era l , an d lo ca l agen c ies ; otherw ise a p p rova l s h a l l be g ra nted by the lo ca l a u thorit ies . Al l wa ste a n d borrow a reas off- s ite sha l l b e protected by sed i ment con trol measures a n d sta b i l ized .

2 6 . S ite I n format ion :

A. Area D istu rbed : 0 . 9 Ac res B . Tota l Cut : 280 C u b i c Ya rd s C . Tota l Fi l l : 37 C u bic Ya rd s D . Off -S ite Waste / Borrow Area Locat ion : TBD

STANDARD STABII IZATION NOTE

Fo l l owing i n it ia l soi l d i sturban ce or red i sturbance, perm a n e n t or tempora ry sta b i l i zat ion s h a l l be comp leted w ith i n t h ree (3) ca lend a r d ays as to the s u rface of a l l pe r imeter con tro ls , d i kes, swa les , d itches, peri meter s lopes , a n d a l l s l opes steeper than 3 horizonta l to 1 vertica l (3 : 1 ) ; a nd seven (7) days as to a l l other d istu_rbed or g ra d ed a reas on the project s i te not u n d er a ct ive g ra d i n g .

B-4 STANDARDS AND SPECIEICATIONS EOR VEGETATIVE STABII IZATION

Def i n it io n : Us i ng vegetat ion as cover to prote ct exposed so i l f rom eros ion .

P u rpose: To promote the estab l ishment af vegetat ion on exposed so i l .

Con d it ions Where Pra ct i ce Appl ies :

On a l l d i sturbed a reas not sta b i l i ze d by other method s . Th is spec if icat ion is d ivid e d into se ct ions on i n c rementa l sta b i l izat ion ; so i l preparatio n , so i l a m e n dments an d topsoi l i ng ; see d i n g a n d m u l c h i n g ; tempora ry sta b i l izat io n ;

a n d permanent stabi l izat ion .

Effects on Water Q u a l ity a n d Quant ity Sta b i l izat ion pra ct i ces a re used to promote the estab l ishment of vegetat ion on expose d so i l . Wh e n so i l is sta b i l ize d w ith vegetat io n , the so i l is fess l i ke ly to erod e an d more l i kely to a l l ow i nf i l t rat ion of ra i nfa l l , t hereby red u c i ng sed i ment loads and runoff to d ownstrea m a reas.

P l a n t i ng vegetat ion i n d istu rbed a reas w i l l have a n effect on the water bu d get, espe c ia l ly on vol u mes and rates of runoff, i nf i l t rat io n , eva porat ion , tra nsp i rat io n , perco lat ion , a n d g roun d wate r rec h a rg e . Over t i me, vegetation w i l l i n c rease o rg a n i c matter content a n d i m p rove the water ho l d i n g ca pa c ity o f t h e soi l a n d s u bseq uent p l an t g rowt h .

Vegetat ion w i l l h e l p red u ce t h e movement o f sed i ment , nu t rients , a n d other c hem ica l s ca rried by runoff to rece iv i ng wate rs. P la nts wi l l a l so h e l p protect g roun d water supp l ies by a ss i mi la1 ing those s u bsta nces present w ith i n the root zone.

Sed iment con trol pract ices mu st re main i n p lace d u ri ng g ra d i ng , seed bed preparation , seed i n g , m u l c h i n g , a n d vegetat ive esta bl is h ment .

Ad eq uate Vegetat ive Esta bl is h me nt

I nspect seed ed a rea s for veg etat ive estab l is hment a nd m a ke n e c essary repa i rs, rep la cements, a n d resee d ings with i n the p lan t i ng season .

1 . Ad equate vegetat ive sta b i l izat ion req u i res 9 5 percent g ro u n d cover.

2. I f an a rea h a s l ess than 40 percent g roun d cove r , restab i l ize fo l low i ng the orig ina l recommen d at ions for l ime , fert i l izer , seed bed prepa ra-t io n , and seed i n g .

3 . I f a n a rea h a s betw een 40 an d 94 pe rce nt g ro u nd cove r, ove r-s eed a n d fert i l ize us i ng h a lf of the rates or ig i nany specif ied .

4. Ma i ntenance fert i l izer rates for permanent seeil i ng a re shown i n Ta b le

B . 6 .

B-4- 1 STANDARDS AND 5PECIEICATIO�IS FOR INCREME�ITAI SIABII IZATION

D ef i n it io n : Esta bl ish ment of veg etat ive cove r on cut a n d f i l l s lo pes.

P u rpose: To provide t i mely vegetative cover on c ut and f i l l s lopes as work p rogresses.

Cond it ions Where Pra ct i ce Appl ies Any cut or f i l l s lope g reater than 1 5 feet i n h e ig h t . This pract i ce a l so a p p l ies to stoc kp i l es .

Criteria A. I n c rementa l Sta b i l izat ion - Cut S l o pes 1 . Excavate a n d sta bi l i ze c ut s lopes i n i nc re m e nts not to exceed 1 5 feet i n he ig h t . P repare seed bed a n d app ly seed a n d m u lch on a l l c ut s l opes as the work prog resses.

2 . Construct ion sequ e n ce examp l e (Refer to Fig u re B . 1 ) :

a . Constru ct a n d sta b i l ize a l l tempora ry swales or d i kes that w i l l be used to convey ru noff a roun d the ex cavat io n .

b . Perform Phase 1 ex cavat io n , p re pare seed bed , a n d sta b i l i ze .

c . Perform Phase 2 excavatio n , prepare seed bed , an d sta b i l i ze .

Overseed Phase 1 a reas as ne cessary.

d . Perform f i n a l pha s e excavat io n , pre p a re seed bed , an d sta b i l iz e .

Overseed previously seed ed a reas a s necessary.

N ote : On ce excavat ion has beg u n the ope rat ion s hou l d be cont i n u o u s f ro m g r u b b i ng_ th ro u g h the comp let ion of g ra d i n g a n d p la cement of topso i l ( if req u i red) a n d permanent seed a n d m u l c h . Any i nterrupt ions i n the operat ion or comp let ing th e operat ion out of th e seed i ng season wi l l necess itate the a p p l ication of tem porary sta bi l izat ion .

7 5 FT MAY/

EX ISTING

GROUN�

B-4- 1 INCREMENTAi STABII IZATION (cant ) B . I n c rementa l Sta b i l izat ion - Fi l l S l opes 1 . Constru ct a n d sta bi l ize f i l l s lopes ,n i n c reme nts not to exc eed 1 5 feet i n he ig h t . P repare seed bed a n d a pply seed a n d mu lch on a l l s lopes as the work prog resses.

2. Sta b i l ize s l opes i mm e d iately when the vert i ca l h eig ht of a l i ft reac hes 1 5 feet, o r when the g ra d i ng operation ceases as presc ri bed i n the p l ans .

3. At the en d of ea c h d ay, i nsta l l tempora ry water conveya n ce p ra ct i ce (s) , as necessary, to i ntercept s u rface ru noff a nd convey it d own the s lope i n a n o n - e ros ive man ner .

4. Construction seq u e nce exa m p le (Refer to Fig u re B . 2 ) :

a . Constru ct an d sta bi l ize a l l le m porar_y swa l es or d ikes t h a t w i l l b e used t o d ivert runoff a roun d the f i l l . Constru ct s i l t fen ce on l o w s i d e of f i l l u n less other method s shown an th e p l a n s a d d ressthis area .

b . At the en d of ea c h d ay, insta l l tempora ry wate r conveya n ce pra ct ice(s) , as necessa ry, to i ntercept s u rfa ce runoff a n d convey it d own the s lope i n a non- eros ive m a n n e r.

c . P lace Pha se 1 fi l l , p repare seed bed , a nd sta b i l i ze .

d . P la ce Phase 2 fi l l , p repare seedbed , a n d sta b i l ize.

e . P lace f i na l phase fi l l , pre pare see d bed , a n d sta b i l ize . Ove rs eed prev ious ly seeded a reas as necessa ry.

Note: On ce the p la cem e nt of fi l l has beg u n the o pera t ion s hou l d be cont i nuous f rom g ru b b i n g t h rough the comp let ion of g ra d i n g a n d p la cement of topso i l ( if req u i red) a n d permanent seed a n d m u l c h . Any i n te rru ptions in the operat ion or co m plet ing the operation out of the seed i ng season w i l l ne cess itate thea pp l i cat ion of tempora ry sta b i l izat io n .

PHASE 3

EXC..,VATION

PH.I.SE 2

[)(CAV ... TIDN

PHASE 1

E.'CA\iAllON

DIKE/SWALE

\ TEMPOR,W Dlt::E/SWALE TO 8[

PLACED I\ T THE mo OF EACH I \ WORK DAY TO BE: USED UNllL

1 I\ SlOPE IS CO�tPLE:TELY STAlllLIZEO

_'_,--,_ _ _ -_ _ _ -_ _ -_ _ _ -_ _ -_ _ _ -_ _ -A _ _ i

Fig ure B . 2 : I n c rementa l Sta b i l izat ion - Fi l l

B-4-2 SOIi PREPARATION TOPSOIi ING AND SOIi AMENDMENTS Def i n it io n : Th e process of prepari n g the so i l s to susta i n ad equ ate vegetative stab i l izat ion .

Pu rpos e : To provid e a su itab le so i l m e d i u m for veg etat ive g rowth.

Cond it ions Where Pra ct ice Appl ies : Wh ere vegetat ive sta b i l izat ion is to be esta b l ish ed .

Criteria A. Soi l Preparation 1 . Tem porary Sta b i l izat ion

a. Seedbed prepa rat ion cons ists of l oosen i ng so i l to a d epth of 3 to 5 i n c hes by m ea ns of suita b l e a g ri c u l t u ra l o r constru ct ion equ i pm e nt , such as d isc ha rrows or c h isel p lows or ri ppers mou nted on constru ct ion eq u ipment . Afte r the so i l is loosened , it m ust not be ro l l ed or d ragg ed smooth but l eft i n the ro ug hened con d it ion . S l o pes 3 : 1 o r f l atter a re to be tracked w ith ri d ges ru n n ing para l l e l to the contour of the s lope.

b . Apply fe rti l iz e r a n d l im e as pres c ri bed on the p l a n s .

c . I n corporate l i m e a n d fert i l izer i nto the t o p 3 t o 5 i n c h es of so i l by d isk i n g or other su itab le means .

2 . Pe rmanent Sta b i l i zat ion a . A soi l test is req u i red for a ny earth d istu rban ce of 5 acres or mo re.

The min i m u m so i l con d it ions req u i red for permanent vegetat ive esta b l i shment are :

i . Soi l pH between 6 .0 a n d 7 .0 .

i i . Sol u b le sa l ts l ess than 500 parts per m i l l ion ( p p m l .

i i i . So i l conta i n s less t h a n 4 0 percent c lay but enough f i n e g ra i ned mater ia l ( g reater than 30 percent s i l t p l u s c l ay) to provi d e th e capa c ity to ho l d a moderate a m o u n t of mo istu re . An except ion : i f lovegrass w i l l be p la nted , th e n a sa ndy sa i l ( less than 30 perc ent s i l t _plus c l ay) wou l d be a cce pta b le .

iv. So i l conta i ns 1 .5 percent m in i m u m organ i c matter by we ight .

v. So i l conta ins suff i c ient pore spa ce to pe rm it a d equ ate root pen etratio n .

b. Appl i cat ion of a men d ments or topsoi l is req u i red i f o n - s ite so i l s d o not meet the a bove con d it ions .

c . Gra d ed a reas m ust be ma i nta i ned i n a t rue a n d even g ra d e as spe c i f ied on the a_p proved p l a n , then sca rif ied or otherw ise loosen ed to a depth of 3 to 5 i n c hes .

d . App ly so i l amen d ments a s spec ified on the a p p roved p lan or as i n d i cated by the resu lts of a soi l test.

e. M i x so i l amen d ments into the top 3 to 5 i n c hes of so i l by d isk i ng or other su itab le means . Rake lawn a reas to smooth the s urface , remove l a rg e objects l ike stones an d bran c hes , and rea dy the a rea for seed app l i cat ion . Loosen s u rfa c e so i l bx d ragg ing w ith a heavy c ha i n or other equ i pment to ro ughen the s u rfa ce wh e re s ite con d it ions w i l l not perm it norma l seed bed" preparat io n . Tra c k s lopes 3 : 1 or f l atter w ith tra c ked equ ipment l eav i ng the so i l i n an i rreg u l a r con d i t ion w ith ri d g es ru nn i ng para l l e l to the contour of the s lope . Leave the top 1 to 3 i n c hes of so i l loose and fria b le . Seed bed loosen i n g may be u n nec essa ry on newly d istu rbed a rea s .

B . Topso i l i ng 1 . Topsoi l i s p la c e d over prepared su bso i l p rior to esta b l is h me nt of permanent vegetat ion . The pu rpose is to provi d e a su ita b l e so i l me d i u m f a r vegetat ive growt h . So i l s o f con c ern have l o w mois\u re content , low nu t rien1 l evel s , l ow pH, mater ia ls tox ic to p lants , an d/or un a c cepta b le so i l g ra d at io n .

2 . Topsai l sa lvaged f rom an ex ist i ng s ite m a y b e used Qrovided it meets th e sta n d a rd s a s set forth i n 1h ese s pec ifi cat ions . Typica l ly , the d e pth of topso i l to be sa lvaged for a g iven so i l type ca n be foun d i n the representat ive so i l p rofi l e se ct ion i n the So i l S u rvey p u b l ished by USDA

N RCS.

3 . Topsoi l i ng is l i m ited to a reas hav i ng 2 : 1 o r f latter s lopes where :

a . The textu re of the exposed suoso i ljparent materia l is not a d eq uate ta f rod u c e veg etative g rowth .

b. he so i l mater ia l is so sha l low that the root i n g zone is not d eep enough to s u pport p la nts or fu rn ish cont i n u ing supp l ies of mo istu re a n d p lant n u tr ients .

c . The or ig i n a l so i l to be vegetated conta i ns materia l tox i c ta p lant g rowt h .

a . T h e so i l is s o a c i d i c t h a t treatment with l i meston e i s n o t fea s i bl e .

4. Areas havi ng s l opes steeper than 2 : 1 req u i re spec ia l cons i d erat ion an d d es ig n .

5 . Topsoir Spec if ications : So i l t o b e used as topso i l m u st m eet the fo l l ow i n g c riter ia :

a . Topso i l m u st b e a loa m , sa ndy loa m , c l ay loa m , s i l t loa m…