17121D - SP RTA 2020.09.25.pdf

G-001 COVER SHEET

G-002 STORMWATER POLLUTION PREVENTION PLAN

G-003 EROSION & SEDIMENT CONTROL NOTES

G-004 EROSION & SEDIMENT CONTROL NOTES

G-005 GENERAL NOTES & SEQUENCE OF CONSTRUCTION

BB001 BORING LOGS

C-100 KEY PLAN

CT101 MAINTENANCE OF TRAFFIC PLAN

V-100 CIVIL LEGEND, ABBREVIATIONS, AND SURVEY NOTES

V-101 TOPOGRAPHIC SURVEY

V-102 TOPOGRAPHIC SURVEY

V-103 TOPOGRAPHIC SURVEY

V-104 TOPOGRAPHIC SURVEY

V-105 EXISTING STORM STRUCTURE SCHEDULE

CD101 E&S AND DEMOLITION PLAN

CD102 E&S AND DEMOLITION PLAN

CD103 E&S AND DEMOLITION PLAN

CD104 E&S AND DEMOLITION PLAN

CS101 SITE LAYOUT

CS102 SITE LAYOUT

CS103 SITE LAYOUT

CS104 SITE LAYOUT

CG101 ROADWAY PLAN & PROFILE STA: 20+00 TO STA: 24+00

CG102 ROADWAY PLAN & PROFILE STA: 24+00 TO STA: 26+75

CG103 ROADWAY PLAN & PROFILE STA: 26+75 TO STA: 30+50

CG104 ROADWAY PLAN & PROFILE STA: 30+50 TO STA: 34+33.92

CG105 WIFI CONDUIT AND EDGE SUBDRAIN LOCATION

CG201 STORM SEWER PROFILE

CG301 ROADWAY CROSS SECTIONS STA: 20+06.44 TO STA: 21+25.00

CG302 ROADWAY CROSS SECTIONS STA: 21+50.00 TO STA: 22+38.27

CG303 ROADWAY CROSS SECTIONS STA: 22+46.27 TO STA: 23+54.22

CG304 ROADWAY CROSS SECTIONS STA: 23+75.00 TO STA: 24+38.50

CG305 ROADWAY CROSS SECTIONS STA: 24+46.50 TO STA: 25+75.00

CG306 ROADWAY CROSS SECTIONS STA: 26+00.00 TO STA: 27+15.01

CG307 ROADWAY CROSS SECTIONS STA: 27+27.93 TO STA: 27+75.00

CG308 ROADWAY CROSS SECTIONS STA: 27+81.72 TO STA: 28+25.00

CG309 ROADWAY CROSS SECTIONS STA: 28+50.00 TO STA: 29+75.00

CG310 ROADWAY CROSS SECTIONS STA: 30+00.00 TO STA: 31+25.00

CG311 ROADWAY CROSS SECTIONS STA: 31+50.00 TO STA: 32+22.65

CG312 ROADWAY CROSS SECTIONS STA: 32+30.65 TO STA: 33+25.00

CG313 ROADWAY CROSS SECTIONS STA: 33+50.00 TO STA: 34+33.77

C-501 EROSION AND SEDIMENT CONTROL DETAILS

C-502 EROSION AND SEDIMENT CONTROL DETAILS

C-503 SITE DETAILS

C-504 SITE DETAILS

C-505 SITE DETAILS

C-506 DRAINAGE DETAILS

C-507 DRAINAGE DETAILS

C-508 TYPICAL ROAD SECTIONS

US Army Corps of Engineers ®

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SITE

PROJECT SITE

ARLINGTON NATIONAL CEMETERY, ARLINGTON, VIRGINIA

FY19 ROAD SURVEY AND DESIGN OF

HUMPHREYS DRIVE

VICINITY MAP

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LOCATION MAP

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G-001

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SHEET # SHEET TITLE

US Army Corps of Engineers ® Norfolk District

SOLICITATION NO.:

CONTRACT NO.: W91236-19-F-0005

ISSUE DATE: SEPTEMBER 2020

NAO FILE NO.: 912

CHIEF, ENGINEERING & CONSTRUCTION DIVISION

CHIEF, ENGINEERING BRANCH

APPROVED

ENGINEERING BRANCH DESIGN LEAD

RECOMMENDED

THIS PROJECT WAS DESIGNED BY THE NORFOLK DISTRICT OF THE ARMY

CORPS OF ENGINEERS. THE INITIALS OR SIGNATURES AND REGISTRATION

DESIGNATIONS OF INDIVIDUALS APPEAR ON THESE PROJECT DOCUMENTS

WITHIN THE SCOPE OF THEIR SIGNATURES AFFIXED BY ER 110-1-8152.

SIGNATURES AFFIXED BELOW INDICATE OFFICIAL RECOMMENDATION AND

APPROVAL OF DRAWINGS IN THIS SET.

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DOUGLAS M WILL

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ORD AND WEITZEL DR

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McCLELLAN DR

ARNOLD DR

MEMORIAL AVE

LEGEND

LINCOLN DR

L'ENFANT DR

GATE 123

ORD & WEITZEL ROAD REPAIRS

ORD & WEITZEL GATE

McPHERSON

PERSHING

WILSON & McCLELLAN

SHERIDAN

PROJECT LIMITS

OUTFALL

PROPOSED ANC CAPITAL IMPROVEMENT PROJECT LOCATIONS

HUMPHREYS STORMWATER MANAGEMENT NARRATIVE

THE PROPOSED PROJECT SITE IS WITHIN THE WATERSHED AREA THAT RUNS WEST

TO EAST TOWARD THE CEMETERY ENTRANCE AND THE POTOMAC RIVER. THE

EXISTING WATERSHED OUTFALL CONSISTS OF A 60-INCH CORRUGATED PLASTIC

PIPE THAT OUTFALLS INTO A CONCRETE CHANNEL IN SECTION 52 OF THE

CEMETERY. THERE ARE CURRENTLY NO EXISTING STORMWATER MANAGEMENT

FACILITIES LOCATED WITHIN THE HUMPHREYS DRIVE PROJECT SITE. SOIL BORINGS

WITHIN THE PROJECT CONSIST MOSTLY OF HYDROLOGIC GROUP D.

THE PROPOSED IMPROVEMENTS INCLUDE REPLACEMENT AND MAINTENANCE OF

EXISTING ROADWAY, SUB-GRADE, INLETS AND DRAIN PIPES. ALSO, TO

MAINTAIN/REHAB HISTORICAL DRAINAGE FEATURES.

STORMWATER MANAGEMENT DESIGN FOR THIS PROJECT WILL COMPLY WITH

TECHNICAL CRITERIA IIB FOR LAND DISTURBING ACTIVITIES UNDER THE VSMP

REGULATION 9VAC-870. STORMWATER QUALITY COMPLIANCE SHALL BE MET

THROUGH THE USE OF EXCESS PHOSPHORUS REMOVAL PROVIDED BY

STORMWATER MANAGEMENT FACILITIES LISTED IN THE ANC COMPREHENSIVE

STORMWATER MANAGEMENT PLAN AND IN TABLE 1. STORMWATER QUANTITY

COMPLIANCE SHALL BE MET THROUGH AN ANALYSIS OF THE 2- AND 10-YEAR

STORM EVENTS FOR EROSION AND FLOOD CONTROL. STORMWATER

CALCULATIONS ARE PROVIDED IN THE STORMWATER REPORT.

ANC COMPREHENSIVE STORMWATER MANAGEMENT PLAN NARRATIVE

THE PURPOSE OF THE ANC COMPREHENSIVE STORMWATER MANAGEMENT PLAN IS

TO PROVIDE WATER QUALITY AND WATER QUANTITY TREATMENT FOR CAPITAL

IMPROVEMENT PROJECTS AT ARLINGTON NATIONAL CEMETERY (ANC). TWO

STORMWATER MANAGEMENT FACILITIES (SWMFS) WERE INSTALLED IN SECTION 52

OF THE CEMETERY DURING THE FIRST CAPITAL IMPROVEMENT PROJECT, ORD &

WEITZEL ROAD REPAIRS. THE SWMFS WILL TREAT THE 57.91 ACRE WATERSHED

THAT DRAINS TO SECTION 52.

THE STORMWATER MANAGEMENT FACILITIES WILL BE USED FOR A

COMPREHENSIVE PLAN PER 9VAC25-870-92. ADDITIONAL NUTRIENT CREDITS WILL

BE APPLIED TOWARDS, BUT NOT LIMITED TO, THE PROJECTS LISTED IN TABLE 3.

THE SWMFS ARE MANUFACTURED TREATMENT DEVICES (MTDS). A HYDRODYNAMIC

SEPARATOR WILL PROVIDE PRETREATMENT AND AN UNDERGROUND CHAMBER

SYSTEM WILL PROVIDE WATER QUALITY AND WATER QUANTITY TREATMENT. THE

MTDS ARE DESIGNED TO COMPLY WITH TECHNICAL CRITERIA IIB OF THE VIRGINIA

STORMWATER MANAGEMENT PROGRAM (VSMP) REGULATIONS 9VAC25-870.

INSPECTION & MAINTENANCE: UNDERGROUND CHAMBER SYSTEM

ARLINGTON NATIONAL CEMETERY IS RESPONSIBLE FOR THE LONG TERM

OPERATIONS AND MAINTENANCE OF ALL PROPOSED MANUFACTURED TREATMENT

DEVICES.

THE PROPOSED MTD SHALL BE INSPECTED EVERY 6 MONTHS DURING THE FIRST

YEAR OF OPERATION AND NO LESS THAN 1 YEAR THEREAFTER. INSPECTION

INTERVALS SHALL BE BASED ON PREVIOUS OBSERVATIONS OF SEDIMENT

ACCUMULATION AND HIGH WATER ELEVATIONS.

CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS

THAT MAINTENANCE IS NECESSARY.

ALL INSPECTION & MAINTENANCE PROCEDURES SHALL BE IN ACCORDANCE WITH

THE MANUFACTURERS STANDARDS AND SPECIFICATIONS.

ORD & WEITZEL

ORD & WEITZEL GATE

SHERIDAN

WILSON & MCCLELLAN

MCPHERSON

PERSHING

HUMPHREYS

ORD & WEITZEL ROAD REPAIRS

PERSHING

MCPHERSON

ORD & WEITZEL GATE

WILSON & MCCLELLAN

SHERIDAN

HUMPHREYS

4.69 4.36 6.65 1.18 1.42* 2.23* 0.75

PROJECT

TOTAL AREA

(AC)

4.36 3.77 5.45 0.50 1.21* 1.76* 0.53

IMPERVIOUS

COVER (AC)

0.33 0.59 1.20 0.68 0.21* 0.47* 0.22

MANAGED

TURF (AC)

0.00

FORESTED/OPEN

SPACE (AC)

1.93 1.70 2.50 0.35 0.55* 0.82* 0.18

TP REMOVAL

REQUIRED (LB/YR)

PROPOSED LAND COVER

0.00 0.00 0.00 0.00 0.00 0.00

8.03*0.00TOTAL 21.28* 17.58* 3.70*

*ESTIMATED BASED ON PRELIMINARY DESIGN BY OTHERS AND SUBJECT TO CHANGE AS DESIGN PROCEEDS.

TABLE 2. ANC PLANNED CAPITAL IMPROVEMENT PROJECTS AND ESTIMATED REMOVAL REQUIRED

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G-002

WATER QUALITY

1-YEAR

10-YEAR

7.56 41.07 127.64

24-HR DESIGN

STORM IN

2.61 32.50 127.08

OUT

14.92 18.55 20.75

HYDRODYNAMIC

SEPARATOR

UNDERGROUND

CHAMBER

SYSTEM

14.65 18.53 20.56

PEAK FLOW (CFS)

20.56 18.53 14.60

TABLE 3. PCSWMM FLOW ROUTING RESULTS FOR THE STORMWATER MANAGEMENT FACILITIES

PRECIPITATION

(IN)

1.00 2.59 4.81

MAXIMUM HGL (FT)

JUNCTION BOX

BMP

TABLE 1. WATER QUALITY ACHIEVED

HYDRODYNAMIC SEPARATOR

UNDERGROUND CHAMBER SYSTEM

TOTAL

TP REMOVAL

(LB/YR)

8.15 13.04 21.19

HUMPHREYS

INSPECTION & MAINTENANCE: HYDRODYNAMIC SEPARATOR

ARLINGTON NATIONAL CEMETERY IS RESPONSIBLE FOR THE LONG TERM

OPERATIONS AND MAINTENANCE OF ALL PROPOSED MANUFACTURED TREATMENT

DEVICES.

THE PROPOSED MTD SHALL BE INSPECTED EVERY 6 MONTHS DURING THE FIRST

YEAR OF OPERATION AND NO LESS THAN 1 YEAR THEREAFTER. INSPECTION

INTERVALS SHALL BE BASED ON PREVIOUS OBSERVATIONS OF SEDIMENT

ACCUMULATION AND HIGH WATER ELEVATIONS.

CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT

MAINTENANCE IS NECESSARY.

ALL INSPECTION & MAINTENANCE PROCEDURES SHALL BE IN ACCORDANCE WITH

THE MANUFACTURERS STANDARDS AND SPECIFICATIONS.

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G-003

EROSION AND SEDIMENT CONTROL NARRATIVE

FY19 ROAD SURVEY AND DESIGN OF HUMPHREYS DRIVE

ARLINGTON NATIONAL CEMETERY, ARLINGTON, VA

1. PROJECT DESCRIPTION

THIS PROJECT CONSISTS OF THE SURVEY, DEMOLITION, AND NEW ROADWAY

CONSTRUCTION OF THE HUMPHREYS DRIVE LOOP AT THE ARLINGTON

NATIONAL CEMETERY IN ARLINGTON, VA. THE NEW ROADWAY CROSS

SECTION CONSISTS OF CONDUIT TO ALLOW FOR FUTURE INSTALLATION OF

COMMUNICATION LINES AND A PAVEMENT SECTION DESIGNED PER

GEOTECHNICAL OBSERVATIONS AND CALCULATIONS. ADDITIONALLY, ANY

STORM SEWER INLET OR PIPE NOTED TO BE CURRENTLY INADEQUATE WILL

BE REPLACED. CARE MUST BE TAKEN DURING CONSTRUCTION TO PREVENT

ANY DISTURBANCE TO CULTURAL FEATURES OF THE CEMETERY, TO INCLUDE

BURIAL PLOTS ADJACENT TO THE ROADWAY. DISTURBANCE THAT OCCURS

DURING THE DEMOLITION PHASE INCLUDES REMOVING THE EXISTING

ROADWAY WITHIN THE LIMITS OF DISTURBANCE INDICATED IN THE SITE PLAN,

REMOVAL OF A PORTION OF THE SIDEWALK AT LODGE 1, AND REMOVAL OF

THE STORM DRAINAGE SYSTEMS AS SHOWN.

PROPOSED DRAINAGE FOR THE PROJECT IS VIA SHEET FLOW AND

CHANNELIZED FLOW TO STORM SEWER INLETS. WHILE EXISTING PIPES MAY

BE REMOVED AND REPLACED PER CALCULATIONS, THE POINT OF OUTFALL

WILL BE MAINTAINED DURING CONSTRUCTION, WITH THE SAME

CONTRIBUTING DRAINAGE AREA DIRECTED TO THIS POINT BEFORE AND

AFTER CONSTRUCTION. PROPOSED GRADES RANGE FROM 1% TO 2% AND UP

TO 3:1 IN LAWN AREAS TO CONNECT TO EXISTING GRADE. OFFSITE PEAK

FLOWS AND CONTRIBUTING VOLUMES HAVE BEEN REDUCED TO COMPLY

WITH THE VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY

REQUIREMENTS FOR STORMWATER QUANTITY. THE SITE GREATER THAN

2,500 SF AND IS LOCATED IN THE CHESAPEAKE BAY PRESERVATION AREA

(CBPA). THEREFORE, STORMWATER QUALITY COMPLIANCE SHALL BE MET

THROUGH THE USE OF EXCESS PHOSPHORUS REMOVAL PROVIDED BY

STORMWATER MANAGEMENT FACILITIES PREVIOUS CONSTRUCTED WITHIN

ARLINGTON NATIONAL CEMETERY AND LISTED IN THE ANC COMPREHENSIVE

STORMWATER MANAGEMENT PLAN.

ACCESS DURING SITE CONSTRUCTION WILL BE FROM THE INTERSECTION OF

HUMPHREYS DRIVE AND HUMPHREYS DRIVE FOR THE SOUTHERN ACCESS

POINT AND FROM HUMPHREYS DRIVE NEAR THE CHAFFEE PARKING LOT FOR

THE NORTHERN ACCESS POINT. CARE MUST BE TAKEN TO ALLOW ACCESS TO

THE CHAFFEE PARKING LOT, LODGE 1, AND THE PAN AM FLIGHT 103

MEMORIAL AT ALL TIMES.

0.75 ACRES OF LAND WILL BE DISTURBED DURING THE CONSTRUCTION OF

THIS PROJECT. LAND DISTURBING ACTIVITIES INCLUDE EROSION AND

SEDIMENT CONTROL (ESC) INSTALLATION, CLEARING AND GRUBBING, ROUGH

GRADING, AND ALL OTHER LAND DISTURBING ACTIVITIES NECESSARY TO

COMPLETE THE PROJECT, AND WILL INCLUDE THE FINAL SITE GRADING AND

ROADWAY CONSTRUCTION.

CONSTRUCTION CREWS WILL MOBILIZE, OCCUPY THE PROJECT SITE, INSTALL

EROSION AND SEDIMENT CONTROL MEASURES, DEMOLISH AND REMOVE ALL

MATERIAL IDENTIFIED IN THE DEMOLITION PLAN, AND BRING THE SITE TO

ROUGH GRADE PRIOR TO THE INSTALLATION OF PROPOSED SITE ITEMS.

DEMOLITION IS TO BE CONDUCTED IN ACCORDANCE WITH THE DEMOLITION

PLAN, INCLUDED IN THE ESC PLAN SHEETS. MATERIALS TO BE DEMOLISHED

AND REMOVED INCLUDE:

- ASPHALT

- CURB/GUTTER

- STORM SEWER PIPES AND STRUCTURES

- SIDEWALK

THE RESPONSIBLE LAND DISTURBER (RLD), AS CERTIFIED BY THE VIRGINIA

DEPARTMENT OF ENVIRONMENTAL QUALITY (DEQ), WILL BE IN CHARGE OF

AND RESPONSIBLE FOR CARRYING OUT THE LAND DISTURBING ACTIVITIES

ASSOCIATED WITH THIS PROJECT.

2. EXISTING SITE CONDITIONS

CURRENT LAND COVER IS DEVELOPED WITH LAWN AREA AND IMPERVIOUS

COVER ALONG THE ROADWAY AND CONSISTS OF MOSTLY PERVIOUS AREA

THAT CONSISTS OF HSG D SOILS. SLOPES THROUGH THE LAWN AREAS RANGE

FROM 1% TO 15%; SLOPES ALONG HUMPHREYS DRIVE TYPICALLY INCLUDE A

2% CROSS SLOPE WITH 0.5% TO 3.5% LONGITUDINAL SLOPES.

THE AVERAGE ELEVATION IS APPROXIMATELY 204 FEET NAVD 88, AND

ELEVATIONS RANGE FROM APPROXIMATELY 199 TO 209 FEET NAVD 88. THERE

ARE 0.59 ACRES OF EXISTING IMPERVIOUS COVER WITHIN THE PROPOSED

LIMITS OF DISTURBANCE. SITE RUNOFF CONSISTS OF SHEET FLOW DIRECTLY

ONSITE VIA INFILTRATION OR SHEET FLOW TO A CLOSED PIPE SYSTEM THAT

IS CARRIED OFFSITE.

THE SITE APPEARS TO LIE WITHIN FLOOD ZONE D, AREAS DETERMINED TO BE

OUTSIDE THE 0.2% ANNUAL CHANCE FLOODPLAIN AS SHOWN ON FEMA'S

FLOOD RATE INSURANCE MAP COMMUNITY PANEL NUMBER 51013C0039C FOR

ARLINGTON COUNTY, VA, DATED AUGUST 19, 2013.

THE WATER TABLE WAS NOT ENCOUNTERED AT SOIL BORING

LOCATIONS. THE UNDERLYING SOILS CONSISTS PRIMARILY OF LEAN

CLAY, FAT CLAY, SILT-CLAYEY SAND, AND CLAYEY SAND. A

GEOTECHNICAL REPORT HAS BEEN COMPLETED BY GET, INC.

(REPORT OF SUBSURFACE EXPLORATION AND GEOTECHNICAL

ENGINEERING SERVICES FOR FY19-ROADWAY SURVEYS AND

DESIGN-HUMPHREYS DRIVE, ARLINGTON NATIONAL CEMETERY,

ARLINGTON, VIRGINIA, DATED 1/27/20) WHICH CONTAINS ADDITIONAL

SUBSURFACE INFORMATION.

3. ADJACENT PROPERTY

THE PROJECT SITE IS LOCATED AT ARLINGTON NATIONAL

CEMETERY, ALONG THE MAIN LOOP OF HUMPHREYS DRIVE NORTH

OF SHERMAN DRIVE. ALL ADJACENT AREAS ARE ON ARLINGTON

NATIONAL CEMETERY PROPERTY.

4. CRITICAL EROSION AREAS

IT HAS BEEN DETERMINED THAT THERE ARE NOT CRITICAL

EROSION AREAS ON THIS SITE.

5. EROSION AND SEDIMENT CONTROL MEASURES

UNLESS OTHERWISE INDICATED, ALL VEGETATED AND STRUCTURAL

ESC CONTROL PRACTICES SHALL BE CONSTRUCTED AND

MAINTAINED ACCORDING TO THE LATEST EDITION OF THE MINIMUM

STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND

SEDIMENT CONTROL HANDBOOK (VESCH) APPLICABLE TO THE

COASTAL PLAIN REGION OF VIRGINIA. THE MINIMUM STANDARDS OF

THE VESCH SHALL BE ADHERED TO BEFORE, DURING, AND AFTER

CONSTRUCTION, UNLESS OTHERWISE WAIVED OR APPROVED BY A

VARIANCE. REFER TO THE CONSTRUCTION PLANS FOR DETAILS AND

LOCATIONS ASSOCIATED WITH THE CONTROL MEASURES.

GENERAL

1) A COPY OF THE APPROVED ESC PLAN AND THE VESCH SHALL BE

MAINTAINED ON THE SITE AT ALL TIMES.

2) PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS

OTHER THAN INDICATED ON THE ESC PLANS (INCLUDING, BUT

NOT LIMITED TO OFF-SITE BORROW OR WASTE AREAS), THE

CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY ESC PLAN TO

THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN

APPROVING AUTHORITY.

3) THE CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLATION

AND MAINTENANCE OF ANY ADDITIONAL CONTROL MEASURES

NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS

DETERMINED NECESSARY BY THE PLAN APPROVING AUTHORITY

AT NO ADDITIONAL COST TO THE OWNER.

MINIMUM STANDARDS

MS-1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL

BE APPLIED TO DENUDED AREAS WITHIN SEVEN (7) DAYS

AFTER FINAL GRADE IS REACHED ON ANY PORTION OF

THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE

APPLIED WITHIN SEVEN (7) DAYS TO DENUDED AREAS

THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN

DORMANT FOR LONGER THAN FOURTEEN (14) DAYS.

PERMANENT STABILIZATION SHALL BE APPLIED TO

AREAS THAT ARE TO BE LEFT DORMANT FOR MORE

THAN ONE (1) YEAR.

MS-2. DURING CONSTRUCTION OF THE PROJECT, SOIL

STOCKPILES AND BORROW AREAS SHALL BE STABILIZED

OR PROTECTED WITH SEDIMENT TRAPPING MEASURES.

THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY

PROTECTION AND PERMANENT STABILIZATION OF ALL

SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS

AND SOIL INTENTIONALLY TRANSPORTED FROM THE

PROJECT SITE.

MS-3. A PERMANENT VEGETATIVE COVER SHALL BE

ESTABLISHED ON DENUDED AREAS NOT OTHERWISE

PERMANENTLY STABILIZED. PERMANENT VEGETATION

SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A

GROUND COVER IS ACHIEVED THAT IS UNIFORM,

MATURE ENOUGH TO SURVIVE AND WILL INHIBIT

EROSION.

MS-4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES,

SEDIMENT BARRIERS AND OTHER MEASURES INTENDED

TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A

FIRST STEP IN ANY LAND-DISTURBING ACTIVITY AND

SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND

DISTURBANCE TAKES PLACE.

MS-5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN

STRUCTURES SUCH AS DAMS, DIKES, AND DIVERSIONS

IMMEDIATELY AFTER INSTALLATION.

MS-6. SEDIMENT TRAPS AND SEDIMENT BASINS, IF REQUIRED, SHALL

BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL

DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN.

A.THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP

SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA

AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS

THAN THREE (3) ACRES.

B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS

COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER

THAN OR EQUAL TO THREE (3) ACES SHALL BE CONTROLLED

BY A SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF

A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF

DRAINAGE AREA. THE OUTFALL SYSTEM SHALL, AT A

MINIMUM, MAINTAIN STRUCTURAL INTEGRITY OF THE BASIN

DURING A 25-YEAR STORM OF 24-HOUR DURATION. RUNOFF

COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL

CORRESPOND TO A BARE EARTH CONDITION OR THOSE

CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT

BASIN IS UTILIZED.

C.MS-7. CUT AND FILL SLOPES SHALL BE DESIGNED AND

CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION.

SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY

WITHIN ONE (1) YEAR OF PERMANENT STABILIZATION SHALL

BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING

MEASURES UNTIL THE PROBLEM IS CORRECTED.

MS-8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL

SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE

TEMPORARY OR PERMANENT CHANNEL, FLUME, OR SLOPE

DRAIN STRUCTURE.

MS-9. WHENEVER WATER SEEPS FROM SLOPE FACE, ADEQUATE

DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED.

MS-10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING

CONSTRUCTION SHALL BE PROTECTED SO THAT

SEDIMENT-LADEN WATER CANNOT ENTER THE CONVEYANCE

SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE

TREATED TO REMOVE SEDIMENT.

MS-11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE

CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE

OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR

PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH

THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL.

MS-12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED,

PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT,

CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK

AREA TO THE GREATEST EXTENT POSSIBLE DURING

CONSTRUCTION. NON-ERODIBLE MATERIAL SHALL BE USED FOR

THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS.

EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF

ARMORED BY NON-ERODIBLE COVER MATERIALS.

MS-13. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY

CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY

SIX-MONTH PERIOD, A TEMPORARY VEHICULAR STREAM

CROSSING CONSTRUCTED OF NON-ERODIBLE MATERIAL SHALL

BE PROVIDED.

MS-14. ALL APPLICABLE FEDERAL, STATE, AND LOCAL CHAPTERS

PERTAINING TO WORKING IN OR CROSSING LIVE

WATERCOURSES SHALL BE MET.

MS-15. THE BED AND BANKS OF A WATERCOURSE SHALL BE

STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE

IS COMPLETED.

MS-16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN

ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION

TO OTHER APPLICABLE CRITERIA:

A.NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE

OPENED AT ONE TIME.

B.EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL

SIDE OF TRENCHES.

C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE

FILTERED OR PASSED THROUGH AN APPROVED

SEDIMENT TRAPPING DEVICE, OR BOTH, AND

DISCHARGED IN A MANNER THAT DOES NOT

ADVERSELY AFFECT FLOWING STREAMS OR OFF-SITE

PROPERTY.

D. MATERIAL USED FOR BACKFILLING TRENCHES SHALL

BE PROPERLY COMPACTED IN ORDER TO MINIMIZE

EROSION AND PROMOTE STABILIZATION.

E. RESTABILIZATION SHALL BE ACCOMPLISHED IN

ACCORDANCE WITH THESE REGULATIONS.

F. APPLICABLE SAFETY REGULATIONS SHALL BE

COMPLIED WITH.

MS-17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES

INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS

SHALL BE MADE TO MINIMIZE THE TRANSPORT OF

SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED

SURFACE. WHERE SEDIMENT TRANSPORTED ONTO A

PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE

SHALL BE CLEANED THOROUGHLY AT THE END OF EACH

DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS

BY SHOVELING OR SWEEPING AND TRANSPORTED TO A

SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING

SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED

IN THIS MANNER. THIS PROVISION SHALL APPLY TO

INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO

LARGER LAND-DISTURBING ACTIVITIES.

MS-18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL

MEASURES SHALL BE REMOVED WITHIN THIRTY (30)

DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE

TEMPORARY MEASURES ARE NO LONGER NEEDED,

UNLESS OTHERWISE AUTHORIZED BY THE LOCAL

PROGRAM AUTHORITY. TRAPPED SEDIMENT AND THE

DISTURBED SOIL AREAS RESULTING FROM THE

DEPOSITION OF TEMPORARY MEASURES SHALL BE

PERMANENTLY STABILIZED TO PREVENT FURTHER

EROSION AND SEDIMENTATION.

MS-19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM

DEVELOPMENT SITES SHALL BE PROTECTED FROM

SEDIMENT DEPOSITION, EROSION, AND DAMAGE DUE TO

INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE

OF STORMWATER RUNOFF FOR THE STATED

FREQUENCY STORM OF 24-HOUR IN ACCORDANCE WITH

THE FOLLOWING STANDARDS AND CRITERIA:

A. CONCENTRATED STORMWATER RUNOFF LEAVING A

DEVELOPMENT SITE SHALL BE DISCHARGED DIRECTLY

IN AN ADEQUATE NATURAL OR MAN-MADE RECEIVING

CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR

THOSE SITES WHERE RUNOFF IS DISCHARGED INTO A

PIPE OR PIPE SYSTEM, DOWNSTREAM STABILITY

ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE

SYSTEM SHALL BE PERFORMED.

B. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE

VERIFIED IN THE FOLLOWING MANNER:

1) THE APPLICANT SHALL DEMONSTRATE THAT THE

TOTAL DRAINAGE AREA TO THE POINT OF ANALYSIS

WITHIN THE CHANNEL IS ONE HUNDRED TIMES

GREATER THAN THE CONTRIBUTING DRAINAGE AREA

OF THE PROJECT: OR

2) a) NATURAL CHANNELS SHALL BE ANALYZED BY THE

USE OF A 2-YEAR STORM TO VERIFY THAT

STORMWATER WILL NOT OVERTOP CHANNEL BANKS

NOR CAUSE EROSION OF CHANNEL BED OR BANKS.

b) ALL PREVIOUSLY CONSTRUCTED MAN-MADE

CHANNELS SHALL BE ANALYZED BY THE USE OF A

10-YEAR STORM TO VERIFY THAT STORMWATER WILL

NOT OVERTOP ITS BANK AND BY THE USE OF A

2-YEAR STORM TO DEMONSTRATE THAT

STORMWATER WILL NOT CAUSE EROSION OF

CHANNEL BED OR BANKS; AND

c) PIPES AND STORM SEWER SYSTEMS SHALL BE

ANALYZED BY THE USE OF A 10-YEAR STORM TO

VERIFY THAT STORMWATER WILL BE CONTAINED

WITHIN THE PIPE OR SYSTEM.

C. IF EXISTING NATURAL RECEIVING CHANNELS OR

PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS OR

PIPES ARE NOT ADEQUATE, THE APPLICANT SHALL:

1) IMPROVE THE CHANNELS TO A CONDITION WHERE AT

10-YEAR STORM WILL NOT OVERTOP THE BANKS AND

A TWO-YEAR STORM WILL NOT CAUSE EROSION TO

THE CHANNEL, THE BED, OR THE BANKS; OR

2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION

WHERE THE 10-YEAR STORM IS CONTAINED WITHIN

THE APPURTENANCES;

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4) ALL ESC CONTROL MEASURES SHALL BE CHECKED

CONTINUOUSLY AND ESPECIALLY AFTER SIGNIFICANT STORM

EVENTS TO LOCATE DAMAGES AND CONDUCT MAINTENANCE

OPERATIONS. ALL MEASURES SHALL HAVE AN INSPECTION AND

MAINTENANCE PLAN THAT IDENTIFIES THE OWNER AND THE

RESPONSIBLE PARTY FOR CARRYING OUT THE INSPECTION AND

MAINTENANCE PLAN.

5) ALL TEMPORARY ESC CONTROL MEASURES SHALL BE REMOVED

WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE

TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS

OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM AUTHORITY.

TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING

FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE

PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND

SEDIMENTATION.

6) UNDERGROUND UTILITY LINES

a. NO MORE THAN 500 LF OF TRENCH MAY BE OPENED AT ONE

TIME.

b. EXCAVATED FILL SHALL BE PLACED ON THE UPHILL SIDE OF

TRENCHES.

c. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE

PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND

PROMOTE STABILIZATION.

7) WHENEVER A SLOPE FACE HAS WATER SEEPING FROM IT,

ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE

PROVIDED.

8) STORM DRAIN AND CULVERT INLET PROTECTION SHALL BE

REQUIRED ON ALL ACTIVE STORM SEWER INLETS. INLET

PROTECTION SHALL BE ESTABLISHED ON INLETS PRIOR TO

PLACING THEM IN SERVICE.

9) LIVE WATERCOURSE WILL NOT BE DISTURBED.

10) ANY AND ALL MATERIAL TRANSPORTED ONTO A PUBLIC OR

PRIVATE ROAD SURFACE WILL BE REMOVED THOROUGHLY AT THE

END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE

ROAD BY SHOVELING OR SWEEPING AND TRANSPORTED TO A

SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE

ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER.

11) CONSTRUCTION TRAFFIC SHALL BE LIMITED TO ACCESS ROADS.

ALL TRAFFIC IS PROHIBITED FROM CROSSING DRAINAGE SWALES

AND STREAMS, EXCEPT WHERE ABSOLUTELY NECESSARY.

12) IF NEEDED, DEWATERING AND WELL POINT DISCHARGE

OPERATIONS MUST PROVIDE APPROPRIATE EROSION AND

SEDIMENT CONTROL DEVICES AND PRACTICES, AND BE

APPROVED BY THE INSPECTOR PRIOR TO THE COMMENCEMENT

OF DISCHARGE OPERATIONS. A “STOP WORK ORDER” MAY BE

ISSUED AND/OR LEGAL ACTION TAKEN FOR NON-COMPLIANCE.

13) THE CONTRACTOR SHALL MONITOR AND TAKE PRECAUTIONS TO

CONTROL DUST, INCLUDING (BUT NOT LIMITED TO) USE OF WATER

OR CHEMICAL DUST PALLIATIVE, LIMITING THE NUMBER OF

VEHICLES ALLOWED ON-SITE, MINIMIZING THE OPERATING SPEED

OF ALL VEHICLES, ETC.

14) ALL TEMPORARY EQUIPMENT, CONSTRUCTION MATERIAL, AND

DEBRIS MUST BE REMOVED FROM THE SITE IN A LAWFUL MANNER

IN ORDER FOR CONSTRUCTION TO BE CONSIDERED COMPLETE.

15) MATERIAL SHALL BE STOCKPILED IN SUCH A MANNER THAT

NATURAL DRAINAGE IS NOT OBSTRUCTED AND NO OFF-SITE

SEDIMENT DAMAGE SHALL RESULT. STABILIZE OR PROTECT

STOCKPILES IN ACCORDANCE WITH MS-2. SIDE SLOPES OF THE

STOCKPILE SHALL NOT EXCEED 2:1. PERIMETER CONTROLS MUST

BE PLACED AROUND THE STOCKPILE IMMEDIATELY; SEEDING OF

STOCKPILES SHALL BE COMPLETED WITHIN 7 DAYS OF THE

FORMATION OF THE STOCKPILE, IN ACCORDANCE WITH STD. &

SPEC. 3.31, TEMPORARY SEEDING IF IT IS TO REMAIN DORMANT

FOR LONGER THAN 30 DAYS (REFER TO MS-1 AND MS-2).

PERMANENT STABILIZATION

FINISH GRADING WILL NOT BE COMPLETED DURING LAND

DISTURBING ACTIVITIES. ALL AREAS DISTURBED SHALL BE

STABILIZED WITH TEMPORARY SEEDING IMMEDIATELY FOLLOWING

FINISH GRADING. SODDING SHALL BE DONE IN ACCORDANCE WITH

ARLINGTON NATIONAL CEMETERY REQUIREMENTS FOR SOD. SOIL

SURFACE SHALL BE CLEARED OF TRASH, DEBRIS, LARGE ROOTS,

BRANCHES, STONES AND CLODS PRIOR TO SEEDING.

IRREGULARITIES TO THE SOIL SURFACE SHALL BE LEVELED OR

FILLED TO PREVENT DEPRESSIONS AND WATER POCKETS PRIOR TO

INSTALLATION. SOD SHALL NOT BE INSTALLED IN EXCESSIVELY WET

OR DRY WEATHER OR WHEN THE GROUND IS FROZEN. TORN OR

UNEVEN PADS WILL NOT BE ACCEPTABLE.

STORMWATER MANAGEMENT

STONE CONSTRUCTION ENTRANCES, STORM DRAIN INLET

PROTECTION, AND SILT FENCING WILL BE CONSTRUCTED PRIOR TO

LAND DISTURBANCES TO PROVIDE FOR SETTLEMENT OF SEDIMENTS

IN STORM WATER RUNOFF PRIOR TO RELEASE TO THE RECEIVING

WATERS.

MAINTENANCE

IN GENERAL, ALL ESC MEASURES WILL BE CHECKED DAILY AND

AFTER EACH SIGNIFICANT RAINFALL. ITEMS WILL BE CHECKED IN

ACCORDANCE WITH THE EROSION AND SEDIMENT CONTROL

MAINTENANCE NOTES.

EROSION AND SEDIMENT CONTROL MAINTENANCE NOTES

1) TEMPORARY STONE CONSTRUCTION ENTRANCE (CE) - VESCH STD.

3.02

1. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL

PREVENT TRACKING OR FLOW OF MUD ONTO PUBLIC ROADWAYS.

THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL

STONE OR THE WASHING AND REWORKING OF EXISTING STONE AS

CONDITIONS DEMAND AND REPAIR AND/OR CLEANOUT OF ANY

STRUCTURES USED TO TRAP SEDIMENT. ALL MATERIALS SPILLED,

DROPPED, WASHED, OR TRACKED FROM VEHICLES ONTO

ROADWAYS OR INTO STORM DRAINS MUST BE REMOVED

IMMEDIATELY. THE USE OF WATER TRUCKS TO REMOVE MATERIALS

DROPPED, WASHED, OR TRACKED ONTO ROADWAYS WILL NOT BE

PERMITTED UNDER ANY CIRCUMSTANCES.

2) SILT FENCE (SF) - VESCH STD. 3.05

1. SILT FENCE SHALL BE INSPECTED IMMEDIATELY AFTER EACH

RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL.

ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY.

2. CLOSE ATTENTION SHALL BE PAID TO THE REPAIR OF DAMAGED

SILT FENCE RESULTING FROM END RUNS AND UNDERCUTTING.

3. SHOULD THE FABRIC ON A SILT FENCE DECOMPOSE OR BECOME

INEFFECTIVE PRIOR TO THE END OF THE EXPECTED USABLE LIFE

AND THE BARRIER STILL BE NECESSARY, THE FABRIC SHALL BE

REPLACED PROMPTLY.

4. SEDIMENT DEPOSITS SHOULD BE REMOVED AFTER EACH STORM

EVENT. THEY MUST BE REMOVED WHEN DEPOSITS REACH

APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRIER.

5. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT

FENCE IS NO LONGER REQUIRED SHALL BE DRESSED TO CONFORM

TO THE EXISTING GRADE, PREPARED AND SEEDED.

3) STORM DRAIN INLET PROTECTION (IP) - VESCH STD. 3.07

1. INLET PROTECTION SHALL BE INSPECTED IMMEDIATELY AFTER

EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED

RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY.

2. SEDIMENT SHALL BE REMOVED AND THE MEASURE RESTORED TO

ITS ORIGINAL DIMENSIONS WHEN SEDIMENT HAS ACCUMULATED TO

ONE HALF THE DESIGN DEPTH OF THE TRAP. REMOVED SEDIMENT

SHALL BE DEPOSITED IN A SUITABLE AREA AND IN SUCH A MANNER

THAT IT WILL NOT ERODE.

3. INLET PROTECTION SHALL BE REMOVED AND THE AREA STABILIZED

WHEN THE REMAINING DRAINING AREA HAS BEEN PROPERLY

STABILIZED.

4. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY.

4) TREE PROTECTION & PRESERVATION (TP) - VESCH STD. 3.38

1. TREE PROTECTION SHALL BE INSPECTED DAILY

FOR DAMAGE. ANY REQUIRED REPAIRS SHALL BE

MADE IMMEDIATELY.

N. COMPLIANCE WITH THE WATER QUANTITY MINIMUM

STANDARDS SET OUT IN 9VAC25-870-66 OF THE VIRGINIA

STORMWATER MANAGEMENT PROGRAM (VSMP) REGULATIONS

SHALL BE DEEMED TO SATISFY THE REQUIREMENTS OF

SUBDIVISION 19 OF THIS SUBSECTION.

STRUCTURAL PRACTICES

1) TEMPORARY STONE CONSTRUCTION ENTRANCE (CE) - VESCH STD.

3.02

TEMPORARY STONE CONSTRUCTION ENTRANCE IS PROVIDED TO

REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO ADJACENT

PAVED ROADWAYS BY CONSTRUCTION VEHICLES. TEMPORARY

STONE CONSTRUCTION ENTRANCES WILL ALLOW ACCESS TO THE

SITE FROM CHAFFEE PARKING LOT AND MEIGS AVE. THE

CONSTRUCTION ENTRANCE IS 70-FEET IN LENGTH, 6-INCHES DEEP,

AND 14-FEET IN WIDTH. THE SECTION CONSISTS OF 2-INCH STONE

UNDER-LAID WITH FILTER FABRIC.

2) SILT FENCE (SF) - VESCH STD. 3.05

SILT FENCING WILL SERVE AS A PERIMETER CONTROL TO PROTECT

DISTURBED AREAS FROM OFF-SITE RUNOFF AND TO PREVENT

SEDIMENTATION DAMAGE TO AREAS OUTSIDE THE PROJECT SITE.

NOTE: CARE MUST BE TAKEN TO USE TRENCHLESS SILT FENCE AS

INDICATED IN EROSION AND SEDIMENT CONTROL PLANS.

3) STORM DRAIN INLET PROTECTION (IP) - VESCH STD. 3.07

INLET PROTECTION WILL BE USED TO PREVENT ANY SEDIMENT

CREATED BY CONSTRUCTION ACTIVITIES AND DISTURBED AREAS

FROM ENTERING THE EXISTING STORM SEWER SYSTEM. INLET

PROTECTION FOR PROPOSED STORM WATER STRUCTURES SHOULD

BE IMMEDIATELY BUILT AT EACH STRUCTURE IN ORDER TO REDUCE

THE AMOUNT OF FINE SEDIMENT TRANSPORTED INTO THE STORM

WATER PIPING.

4) TREE PRESERVATION & PROTECTION (TP) - ANC STD - SHEET C-501

TREE PROTECTION WILL BE USED TO PROTECT DESIRABLE TREES

FROM MECHANICAL AND OTHER INJURY DURING LAND DISTURBING

AND CONSTRUCTION ACTIVITY. AT MINIMUM, THE LIMITS OF CLEARING

SHALL BE LOCATED OUTSIDE THE DRIP LINE OF ANY TREE TO BE

RETAINED, AND IN NO CASE, CLOSER THAN 5-FEET TO THE TRUNK OF

ANY TREE.

VEGETATED PRACTICES

1) TEMPORARY SEEDING - VESCH STD. 3.31

TEMPORARY SEEDING SHALL BE USED AS AN ESC MEASURE.

TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED

AREAS WITHIN SEVEN (7) DAYS AFTER FINAL GRADE IS REACHED ON

ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL

BE APPLIED WITHIN SEVEN (7) DAYS TO DENUDED AREAS THAT MAY

NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER

THAN FOURTEEN (14) DAYS. TEMPORARY SEEDING SHALL BE APPLIED

IMMEDIATELY AFTER ROUGH GRADING IS COMPLETED ON THE

RESPECTIVE AREAS. REFER TO TABLE 3.31-B FOR TEMPORARY

SEEDING GUIDANCE.

2) SODDING - VESC STD. 3.33

STABILIZING FINE-GRADED AREAS BY ESTABLISHING PERMANENT

GRASS STANDS WITH SOD. PROVIDES IMMEDIATE PROTECTION

AGAINST EROSION, AND IS ESPECIALLY EFFECTIVE IN GRASSED

SWALES AND WATER-WAYS OR IN AREAS WHERE AN IMMEDIATE

AESTHETIC EFFECT IS DESIRABLE.

MANAGEMENT STRATEGIES

1) STORM DRAIN INLET PROTECTION, STONE CONSTRUCTION

ENTRANCE, AND SILT FENCE WILL BE INSTALLED AS AN EARLY STEP

DURING LAND DISTURBING ACTIVITIES.

2) THE SITE IS TO DRAIN TO SEDIMENT-TRAPPING CONTROLS AT ALL

TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE

DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.

3) RESPONSIBILITY FOR PLAN IMPLEMENTATION SHOULD BE GIVEN TO

THE CONSTRUCTION SUPERINTENDENT AND HE/SHE SHALL MAKE

ALL CONSTRUCTION WORKERS AWARE OF THE PROVISIONS OF THE

PLAN.

3. DEVELOP A SITE DESIGN THAT WILL NOT CAUSE THE

PRE-DEVELOPMENT PEAK RUNOFF RATE FROM A TWO-YEAR

STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A

NATURAL CHANNEL OR WILL NOT CAUSE THE

PRE-DEVELOPMENT PEAK RUNOFF RATE FROM A 10-YEAR

STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A

MAN-MADE CHANNEL; OR

4. PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT,

STORMWATER DETENTION OR OTHER MEASURES WHICH IS

SATISFACTORY TO THE LOCAL AUTHORITY TO PREVENT

DOWNSTREAM EROSION.

D. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO

MAKE THE IMPROVEMENTS.

E. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING

WATERSHED CHARACTERIZES AND THE ULTIMATE

DEVELOPMENT CONDITION OF THE SUBJECT PROJECT.

F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES

STORMWATER DETENTION, HE SHALL OBTAIN APPROVAL FROM

THE LOCAL AUTHORITY OF A PLAN FOR MAINTENANCE OF THE

DETENTION FACILITIES. THE PLAN SHALL SET FORTH THE

MAINTENANCE REQUIREMENTS OF THE FACILITY AND THE

PERSON RESPONSIBLE FOR PERFORMING THE MAINTENANCE.

G. OUTFALL FROM A DETENTION FACILITY SHALL BE DISCHARGED

TO A RECEIVING CHANNEL, AND ENERGY DISSIPATERS SHALL BE

PLACED AT THE OUTFALL OF ALL DETENTION FACILITIES AS

NECESSARY TO PROVIDE A STABILIZED TRANSITION FROM THE

FACILITY TO THE RECEIVING CHANNEL.

H. ALL ON-SITE CHANNELS MUST BE VERIFIED TO BE ADEQUATE.

I. INCREASED VOLUMES OF SHEET FLOWS THAT MAY CAUSE

EROSION OR SEDIMENTATION ON ADJACENT PROPERTY SHALL

BE DIVERTED TO A STABLE OUTLET, ADEQUATE CHANNEL, PIPE

OR PIPE SYSTEM, OR TO A DETENTION FACILITY.

J. IN APPLYING THESE STORMWATER MANAGEMENT CRITERIA,

INDIVIDUAL LOTS OR PARCELS IN A RESIDENTIAL, COMMERCIAL

OR INDUSTRIAL DEVELOPMENT SHALL NOT BE CONSIDERED TO

BE SEPARATE DEVELOPMENT PROJECTS. INSTEAD, THE

DEVELOPMENT, AS A WHOLE, SHALL BE CONSIDERED TO A

SINGLE DEVELOPMENT PROJECT. HYDROLOGIC PARAMETERS

THAT REFLECT THE ULTIMATE DEVELOPMENT CONDITION SHALL

BE USED IN ALL ENGINEERING CALCULATIONS.

K. ALL MEASURES USED TO PROTECT PROPERTIES AND

WATERWAYS SHALL BE EMPLOYED IN A MANNER WHICH

MINIMIZES IMPACTS ON THE PHYSICAL, CHEMICAL AND

BIOLOGICAL INTEGRITY OF RIVERS, STREAMS AND OTHER

WATERS OF THE STATE.

L. ANY PLAN APPROVED PRIOR TO JULY 1, 2014, THAT PROVIDES

FOR STORMWATER MANAGEMENT THAT ADDRESSES ANY FLOW

RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL

OR MAN-MADE CHANNELS SHALL SATISFY THE FLOW RATE

CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR

MAN-MADE CHANNELS IF THE PRACTICES ARE DESIGNED TO (I)

DETAIN THE WATER QUALITY VOLUME AND TO RELEASE IT OVER

48 HOURS; (II) DETAIN AND RELEASE OVER A 24-HOUR PERIOD

THE EXPECTED RAINFALL RESULTING FROM THE ONE YEAR,

24-HOUR STORM; AND (III) REDUCE THE ALLOWABLE PEAK FLOW

RATE RESULTING FROM THE 1.5, 2, AND 10-YEAR, 24-HOUR

STORMS TO A LEVEL THAT IS LESS THAN OR EQUAL TO THE

PEAK FLOW RATE FROM THE SITE ASSUMING IT WAS IN A GOOD

FORESTED CONDITION, ACHIEVED THROUGH MULTIPLICATION

OF THE FORESTED PEAK FLOW RATE BY A REDUCTION FACTOR

THAT IS EQUAL TO THE RUNOFF VOLUME FROM THE SITE WHEN

IT WAS IN A GOOD FORESTED CONDITION DIVIDED BY THE

RUNOFF VOLUME FROM THE SITE IN ITS PROPOSED CONDITION,

AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND

VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE

CHANNELS AS DEFINED IN ANY REGULATIONS PROMULGATED

PURSUANT TO §62.1-44.15:54 OR 62.1-44.15:65 OF THE ACT.

M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW

RATE CAPACITY AND VELOCITY REQUIREMENTS OF

§62.1-44.15:52 A OF THE ACT AND THIS SUBSECTION SHALL BE

SATISFIED BY COMPLIANCE WITH WATER QUANTITY

REQUIREMENTS IN THE STORMWATER MANAGEMENT ACT

(§62.1-44.15:24 ET SEQ. OF THE CODE OF VIRGINIA) AND

ATTENDANT REGULATIONS, UNLESS SUCH LAND-DISTURBING

ACTIVITIES ARE IN ACCORDANCE WITH 9VAC25-870-48 OF THE

VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP)

REGULATIONS.

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G-005

1. OBTAIN NECESSARY PERMITS.

2. THE CONTRACTOR WILL CONTACT THE ASSIGNED DEQ INSPECTOR ONE (1)

WEEK PRIOR TO COMMENCING ANY LAND DISTURBING ACTIVITIES.

3. MOBILIZATION.

4. ERECT CONTRACTOR STAGING AREAS.

5. INSTALL SAFETY FENCE AROUND AREAS TO REMAIN UNDISTURBED.

6. INSTALL EROSION AND SEDIMENT CONTROL MEASURES AROUND LAND

DISTURBING ACTIVITIES ON PROJECT SITE. NO EROSION AND SEDIMENT

CONTROLS MAY BE REMOVED WITHOUT THE DEQ INSPECTOR'S

APPROVAL. STOCKPILE LOCATION, IF ACCEPTABLE, SHALL BE

COORDINATED WITH COR (CONTRACTING OFFICER'S REPRESENTATIVE).

7. BEGIN DEMOLITION AND REMOVAL OF SITE FEATURES.

8. RELOCATE UTILITIES WITHIN PROJECT LIMITS, AS IDENTIFIED ON SHEETS

CD101-CD104.

9. PERFORM ROUGH GRADING OF THE SITE.

10. DEMOLISH AND MILL / OVERLAY HUMPHREYS DRIVE AS IDENTIFIED ON

SHEETS CD101-CD104 AND CS101-CS104.

11. INSTALL ALL PROPOSED STORM DRAINAGE STRUCTURES, PIPES, AND

CULVERTS.

12. INSTALL INLET PROTECTION FOR STORMWATER INLET STRUCTURES AS

THEY ARE CONSTRUCTED.

13. INSTALL TEMPORARY SEEDING IN ALL DENUDED AREAS.

14. FINE GRADE ROADWAY.

15. COMPACT SUBGRADE, PLACE SUBBASE AND AGGREGATE.

16. INSTALL HARDSCAPE, INCLUDING SIDEWALK AND PAVING OPERATIONS.

17. FINE GRADE REMAINING SITE.

18. INSTALL SIGNAGE.

19. CLEAN STORM SEWER PIPES AND STORM STRUCTURES OF DEBRIS AND

ERODED MATERIAL DURING THE LAST STAGES OF CONSTRUCTION.

20. INSTALL FINAL STABILIZATION.

21. ALL EXCAVATED MATERIAL SHALL BE DISPOSED OF IN A LAWFUL MANNER.

22. REMOVE TEMPORARY EQUIPMENT, CONSTRUCTION MATERIALS, AND

DEBRIS FROM SITE.

23. REMOVE TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES

AFTER FINAL STABILIZATION OF THE SITE.

SEQUENCE OF CONSTRUCTIONGENERAL NOTES

1. ARLINGTON NATIONAL CEMETERY IS OUR NATION'S MOST SACRED SHRINE AND THE

FINAL RESTING PLACE FOR OUR MOST REVERED MILITARY AND CIVILIAN LEADERS. THE

CEMETERY RECEIVES AN ESTIMATED FOUR MILLION VISITORS PER YEAR INCLUDING

VISITS FROM THE PRESIDENT OF THE UNITED STATES, OTHER HEADS OF STATE, FAMILY

MEMBERS OF THE DECEASED, AND MILLIONS OF TOURISTS FROM AROUND THE WORLD.

OVER 6,000 FUNERALS ARE CONDUCTED YEARLY - IN ADDITION TO OVER 2,000 OTHER

CEREMONIES SUCH AS COMMEMORATIONS, AND HEAD-OF-STATE VISITS. THESE

CEREMONIES AND FUNERALS OFTEN RECEIVE THE INTENSE FOCUS OF THE PRESS AND

OTHER MEDIA - ESPECIALLY PRESIDENT KENNEDY'S GRAVE SITE, THE MEMORIAL

AMPHITHEATER, AND THE COLUMBARIUM COMPLEX. BECAUSE OF ARLINGTON'S SPECIAL

SIGNIFICANCE AND THE ATTENTION IT RECEIVES, STRICT ADHERENCE TO THESE

SPECIFICATIONS IS ESSENTIAL. FAILURE TO MEET SPECIFICATIONS WILL HAVE A

NEGATIVE IMPACT ON OUT NATION'S IMAGE AND WILL NOT BE TOLERATED. ARLINGTON

NATIONAL CEMETERY IS A HISTORIC DISTRICT ON THE NATION REGISTER OF HISTORIC

PLACES. THE NATIONAL HISTORIC PRESERVATION ACT AND FEDERAL ARCHAEOLOGICAL

ARTIFACTS AND DISCOVERIES.

2. THE CONTRACTOR SHALL UTILIZE ALL MEANS TO ENSURE SAFETY TO ALL CEMETERY

VISITORS. THIS INCLUDES THE USE OF BARRICADES, SAFETY FENCE, AND THE USE OF

FLAGMEN TO CONTROL THE ENTRANCE AND EXIT OF CONSTRUCTION EQUIPMENT.

GENERAL FENCING TO KEEP VISITORS OUT OF THE CONSTRUCTION SITE SHALL BE

GREEN. IF THE FENCING NEEDS TO KEEP TRAFFIC OR VISITORS FROM A FALL HAZARD, IT

SHOULD BE ORANGE. OTHERWISE SAFETY FENCE SHALL BE ORANGE. CONTRACTOR

SHALL COORDINATE HIS WORK EFFORT WITH OTHER CONTRACTORS.

3. BECAUSE OF ARLINGTON'S SPECIAL SIGNIFICANCE AND THE ATTENTION IT RECEIVES,

CLEANLINESS IS A MUST. IT IS THE CONTRACTOR'S RESPONSIBILITY TO KEEP THE

WORKSITE TRASH FREE AT ALL TIMES.

4. THE CONTRACTOR SHALL PROVIDE ALL NECESSARY LABOR, MATERIALS, EQUIPMENT,

AND OTHER SERVICES AS REQUIRED TO EXCAVATE AND RECONSTRUCT EXISTING

CEMETERY ROADWAYS AS SHOWN ON DRAWINGS. THIS WORK WILL INCLUDE THE

REMOVAL OF CURBS & CURBS/GUTTERS, THE EXCAVATION OF ASPHALT, BASE COURSE,

CONCRETE PAVEMENT AND, IF NEEDED, SUB-BASE COURSE. SUBGRADE THAT HAS BEEN

CLASSIFIED AS POOR SHALL ALSO BE REMOVED AND REPLACED. CONTRACTOR SHALL

ADJUST ROADWAY ELEVATIONS TO ENSURE POSITIVE DRAINAGE AND PREVENT

PONDING ON THE NEW ROADS.

5. TREE PROTECTION SHALL BE INSTALLED AROUND TREES IN THE WORK ZONE. THERE

CAN BE NO STOCKPILING OR STORAGE OF MATERIALS OR VEHICLES PARKED UNDER

THE TREES.

6. CONTRACTOR SHALL DEMOLISH AND REPLACE THE EXISTING STORM SEWER SYSTEM

(LOCATED WITHIN THE FOOTPRINT OF THE ROADWAYS OR AS INDICATED ON THE

DRAWING) INCLUDING PIPES, CATCH BASINS, AND CURB INLETS. ENSURE THAT THE

BEDDING BACKFILL MATERIAL IS PLACED AND COMPACTED.

7. CONTRACTOR SHALL DEMOLISH BITUMINOUS ROAD SURFACE, BASE COURSE, AND

SUB-BASE COURSE AS NEEDED IN ORDER TO PREPARE IT FOR RECONSTRUCTION.

8. CONTRACTOR SHALL DEMOLISH/INSTALL CONCRETE CURB AND GUTTER SYSTEMS. THE

NEW CURBS WILL BE OF THE "MOUNTABLE TYPE" UTILIZING CONCRETE CURB AND

GUTTER SYSTEMS. THE NEW CURBS WILL BE OF THE "MOUNTABLE OR FLUSH TYPE"

UTILIZING CONCRETE WITH A COMPRESSIVE STRENGTH OF 3,500 PSI. AT NO TIME WILL

THE EXCAVATION FOOTERS FOR CURBS EXTEND MORE THAN FOUR INCHES BEHIND THE

EXISTING CURBS WHENEVER TREES OR THEIR ROOT SYSTEM ARE PRESENT.

9. CONTRACTOR SHALL REMOVE ALL ABANDONED/INACTIVE UTILITY LINES CROSSING

BENEATH ROADWAYS TO BE RECONSTRUCTED.

10. CONTRACTOR SHALL INSTALL A TOTAL OF 5" OF ASPHALT WITH 3" BASE COURSE, TYPE

BM-25.0, AND 2" OF WEARING SURFACE COURSE, TYPE SM-9.5A.

11. CONTRACTOR SHALL FINISH GRADE, LEVEL, AND PROVIDE TOPSOIL AND SOD AREA OF

CONSTRUCTION AND RESTORE AREAS DISTURBED DURING DEMOLITION OF CURB AND

GUTTERS. CONTRACTOR SHALL BE RESPONSIBLE FOR WATERING THE SOD PENDING

INITIAL ACCEPTANCE BY THE ANC STAFF AND THE CONTRACTING OFFICER'S

REPRESENTATIVE.

12. ENSURE THAT CONTRACTOR PERSONNEL EMPLOYED ON THE ACTIVITY BECOME

FAMILIAR WITH AND OBEY ACTIVITY REGULATIONS INCLUDING SAFETY, FIRE, TRAFFIC,

AND SECURITY REGULATIONS. KEEP WITHIN THE LIMITS OF THE WORK AND AVENUES OF

INGRESS EGRESS. WEAR HARD HATS IN DESIGNATED AREAS, DO NOT ENTER ANY

RESTRICTED AREAS UNLESS REQUIRED TO DO SO AND UNTIL CLEARED FOR SUCH

ENTRY. THE CONTRACTOR'S EQUIPMENT SHALL BE CONSPICUOUSLY MARKED FOR

IDENTIFICATION. THESE SITE SPECIFIC REGULATIONS WILL BE DISCUSSED IN MORE

DETAIL AT THE PRE-CONSTRUCTION CONFERENCE. INFORMATION IS ALSO AVAILABLE IN

THE SPECIFICATIONS OR UPON REQUEST THROUGH THE CONTRACTING OFFICER'S

REPRESENTATIVE.

13. THE PRIMARY ENTRANCE TO ARLINGTON NATIONAL CEMETERY SHALL BE THE GATE BY

BUILDING 123 UNLESS OTHERWISE DIRECTED BY THE CONTRACTING OFFICER'S

REPRESENTATIVE. ROUTING TO PROJECT SITE MUST BE COORDINATED WITH THE

CONTRACTING OFFICER'S REPRESENTATIVE.

14. SPACE IS VERY LIMITED. EXCAVATED MATERIAL FROM EACH ROAD IS TO BE

IMMEDIATELY DISPOSED OF OFF SITE. FILL MATERIAL IS TO BE BROUGHT ON AS A

NEEDED BASIS OR TEMPORARILY STOCKPILED AND PROTECTED WITHIN THE CURRENT

ROAD RECONSTRUCTION PHASE PROJECT AREA.

WI-FI CONDUIT NOTES

1. CONDUIT RUNS AND HANDHOLES FOR FUTURE WI-FI SYSTEM TO BE INSTALLED

ALONG THE ROUTE SHOWN ON THE DRAWINGS. HANDHOLES AT ROADWAY

INTERSECTIONS WHERE CONDUITS CROSS BENEATH ROAD INTERSECTION

SHALL BE SUFFICIENTLY DEEP TO ALLOW TWO FEET OF COVER AS MEASURED

TO BOTTOM OF ROADWAY PAVEMENT SECTION.

2. CONDUIT SHALL BE SCHEDULE 80 PVC.

3. IN AREAS REQUIRING LONG RUNS OF CONDUIT BETWEEN HANDHOLES AND AT

INTERSECTIONS, INTERMEDIATE HANDHOLES SHALL BE INSTALLED AT

INTERVALS NOT TO EXCEED 200 FEET. INTERMEDIATE HANDHOLES TO BE

LOCATED BETWEEN THE HANDHOLES SHOWN ON THE DRAWINGS WILL ALSO

BE REQUIRED AT BENDS IN THE ROAD AND CHANGES IN DIRECTION, OR TO

AVOID EXISTING SURFACE OBJECTS. THE CONTRACTOR MAY ALSO

COORDINATE A BETTER ROUTE TO GET FROM POINT A TO B.

GENERAL NOTES (CON'T)

15. DURING THE DEMOLITION OF CONCRETE, PLAN SHOULD SPECIFICALLY

ADDRESS PROVISIONS TO KEEP CONCRETE DUST RESULTING FROM

JACKHAMMERING OR SAWCUTTING OLD CONCRETE ROADWAY FROM

BECOMING AIR BORNE. CONTROL METHODS AND PROCEDURES MUST BE

APPROVED BY THE CONTRACTING OFFICER'S REPRESENTATIVE.

16. CONTRACTOR SHALL EXERCISE CARE WHEN OPERATING HEAVY EQUIPMENT

OVER EXISTING STORM DRAINS, WATER LINES, AND UTILITY LINES, AND ALSO

IN AND AROUND MONUMENTS, SIGNS AND BOLLARDS.

17. PLAN SHALL ALSO PROVIDE THE MAXIMUM VERTICAL CLEARANCE REQUIRED

FOR ALL MOTORIZED OR TRAILERED VEHICLES/EQUIPMENT TO DETERMINE

THE POTENTIAL NEED FOR POSSIBLE ALTERNATIVE ACCESS ROUTES OR TREE

PRUNING.

18. CONTRACTOR SHALL MAINTAIN POSITIVE WATER DRAINAGE DURING

CONSTRUCTION AND PREVENT PONDING OF WATER THROUGH THE USE OF

PUMPS AND OTHER MEANS. PROVIDE AND MAINTAIN EFFECTIVE INLET

PROTECTION AROUND ALL EXISTING AND NEW DRAINAGE STRUCTURES

DURING COURSE OF CONSTRUCTION. CONTRACTOR SHALL FORMULATE A

PLAN TO KEEP CONSTRUCTION AREA DEWATERED DURING RAIN EVENTS IN A

SAFE AND ENVIRONMENTALLY SOUND MANNER.

19. VERY LIMITED MATERIAL STOCKPILING WILL BE PERFORMED ON THE

PROJECT. STOCKPILES OF STONE AND CONTROLLED SUITABLE FILL MAY BE

TEMPORARILY PLACED ON EXCAVATED ROADBED THAT HAS NOT BEEN

PREPARED. ANY STOCKPILING OF MATERIALS IN PAVED LAY DOWN AREA IS TO

BE ON PLASTIC WITH ENDS TURNED UP, SECURED AND COVERED IN PLASTIC.

20. CONTRACTOR SHALL REMOVE, TRANSPORT, AND REINSTALL ALL SURFACE

OBJECTS ADJACENT TO THE BACK OF CURB (I.E. SIGNS, TRASH CANS,

FLOWER VASES, WOODEN POSTS, ETC.) THAT PROHIBIT CONSTRUCTION

(COORDINATE ITEMS AND DELIVERY LOCATION WITH THE COR).

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