B420 Demolition and Parking Drawings IFC 3-5-2025.pdf

BUILDING 420 DEMOLITION & PARKING LOT CONSTRUCTION

FEMA MOUNT WEATHER EMERGENCY OPERATIONS CENTER

MARCH 5, 2025

ISSUED FOR CONSTRUCTION

DRAWING SET NO. EPS-9620

SOLICITATION NO. 70FA5019F00000177

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Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 22

3/5/2025

G-001

COVER SHEET

Sheet List Table Sheet Number Sheet Title

G-001 COVER SHEET

C-001 CIVIL LEGEND, NOTES & ABBREVIATIONS

CD-100 DEMOLITION PLAN

C-111 SITE PLAN

C-122 GRADING, DRAINAGE & UTILITY PLAN

C-131 LANDSCAPE PLAN

C-141 SIGNAGE AND MARKING PLAN

C-152 EROS. AND SED. CONTROL PLAN - PHASE I

C-161 EROS. AND SED. CONTROL PLAN - PHASE II

C-201 STORM SEWER PROFILES

C-500 SITE DETAILS

C-501 SITE DETAILS

C-502 STORM SEWER DETAILS

C-503 EROSION & SEDIMENT CONTROL NARRATIVE

C-504 EROSION & SEDIMENT CONTROL DETAILS

C-505 EROSION & SEDIMENT CONTROL DETAILS

C-506 EXISTING BUILDING 420 FLOOR PLAN

C-507 LANDSCAPE DETAILS

C-508 SOIL BORING LOGS

E-001 ELECTRICAL COVER SHEET

E-101 ELECTRICAL SITE PLAN

AN ASBESTOS INSPECTION WAS PERFORMED AND IS INCLUDED AS AN APPENDIX TO THE PROJECT SPECIFICATIONS. ACM WAS FOUND GENERALLY IN THE AREAS INDICATED IN THE REPORT. ASBESTOS- CONTAINING BUILDING MATERIALS MAY BE DISTURBED DURING THIS WORK. WHERE SUCH ACTIONS ARE REQUIRED, THE CONTRACTOR MUST HAVE THE ACM REMOVED BY A LICENSED ASBESTOS CONTRACTOR USING APPROVED PROCEDURES AS SPECIFIED. THE WORK REQUIRED FOR ASBESTOS ABATEMENT IS PERMITTED WITHIN THE OVERALL BUILDING PERMIT ISSUED. THE GENERAL CONTRACTOR MUST REVIEW AND CERTIFY THE LOCATIONS WHERE ACM WAS ABATED. NATURALLY OCCURRING ASBESTOS (NOA) MAY BE PRESENT ON SITE. IF CONTRACTOR DISTURBS NOA, CONTRACTOR SHALL HAVE A MITIGATION PLAN IN PLACE DURING EXCAVATION. IF LARGE QUANTITIES ARE ENCOUNTERED, NOA MUST BE BURIED AND

CAPPED ON SITE.

ASBESTOS DISCLOSURE STATEMENT

AN INSPECTION TO IDENTIFY LEAD CONTAINING OR COATED BUILDING COMPONENTS HAS BEEN

CONDUCTED AND IS INCLUDED AS AN APPENDIX IN THE PROJECT SPECIFICATIONS. THIS REPORT IS PROVIDED FOR THE CONTRACTOR'S USE AND MAY NOT BE ALL INCLUSIVE. IT IS THE CONTRACTOR'S

RESPONSIBILITY TO COMPLY WITH ALL VIRGINIA OCCUPATIONAL SAFETY AND HEALTH (VOSH)

REGULATIONS AS THEY PERTAIN TO EMPLOYEE EXPOSURES TO LEAD. ALL LEAD AND LEAD-COATED

BUILDING COMPONENTS SHALL BE RECYCLED TO THE GREATEST EXTENT POSSIBLE.

LEAD MATERIALS DISCLOSURE STATEMENT

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Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

C-001

CIVIL LEGEND,

NOTES &

ABBREVIATIONS

LEGEND

ADDITIONAL LEGEND INFORMATION PROVIDED ON APPLICABLE SHEETS

ABBREVIATIONS

SURVEY NOTES

1. EXISTING TOPOGRAPHIC AND PLANIMETRIC INFORMATION WAS

COMPILED FROM PHOTOGRAMMETRIC MAPPING BY QUANTUM SPATIAL

ON DECEMBER 21, 2017. SUPPLEMENTAL FIELD SURVEY IN SELECT

AREAS WAS CONDUCTED BY DEWBERRY ENGINEERS IN JANUARY 2024.

2. HORIZONTAL DATUM IS VIRGINIA STATE PLANE COORDINATE SYSTEM (VA

SPCS) NORTH ZONE (NAD 83) IN U.S. SURVEY FEET.

3. VERTICAL DATUM IS NORTH AMERICAN VERTICAL DATUM OF 1988 (NAVD

88) IN U.S. SURVEY FEET.

4. EXISTING UTILITY INFORMATION WAS COMPILED BY FIELD SURVEYS

COMPLETED BY DEWBERRY ENGINEERS INC IN NOVEMBER 2019.

GENERAL UTILITY NOTES

1. A MINIMUM COVER OF THREE (3) FEET IS REQUIRED OVER PROPOSED LINES

UNLESS SHOWN OTHERWISE IN DESIGN PROFILE.

2. UNLESS OTHERWISE NOTED, ALL UTILITIES ARE TO BE INSTALLED

UNDERGROUND. ALL UNDERGROUND UTILITIES ARE TO BE MARKED WITH FOIL

TAPE.

3. ALL EXISTING UTILITIES MAY OR MAY NOT BE SHOWN IN THEIR EXACT

LOCATION.

4. THE CONTRACTOR SHALL BE RESPONSIBLE TO REPAIR ANY ACTIVE UTILITIES

DAMAGED DURING CONSTRUCTION AND NOTIFY THE COR OF THE DAMAGE.

5. LENGTHS OF LINES INDICATED ON THE DRAWINGS FOR UTILITY SYSTEMS ARE

APPROXIMATE ONLY. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO

DETERMINE THE EXACT AMOUNT OF PIPING REQUIRED TO FURNISH A

COMPLETE WORKING SYSTEM IN ACCORDANCE WITH THE INTENT OF THE

DRAWINGS.

6. THE CONTRACTOR SHALL SUBMIT AN EXCAVATION REQUEST A MINIMUM OF

SEVEN (7) DAYS PRIOR TO DIGGING; MOUNT WEATHER PERSONNEL WILL

MARK UNDERGROUND UTILITIES UPON RECEIPT OF THE REQUEST. THE

CONTRACTOR IS RESPONSIBLE TO MAINTAIN AND PRESERVE MARKED

UTILITIES THROUGHOUT THE DURATION OF THE CONTRACT.

7. THE CONTRACTOR SHALL SUBMIT A UTILITY OUTAGE REQUEST A MINIMUM OF

SEVEN (7) DAYS IN ADVANCE OF ANY UTILITY OUTAGE.

GENERAL NOTES

1. THE CONTRACTOR IS RESPONSIBLE FOR THE COORDINATION AND

SEQUENCING OF DEMOLITION.

2. ALL WORK SHALL BE PERFORMED IN STRICT COMPLIANCE WITH THE MOST

CURRENT APPLICABLE FEDERAL, STATE , AND LOCAL LAWS AND

REGULATIONS, INCLUDING BUT NOT LIMITED TO, ENVIRONMENTAL

PROTECTION AGENCY (EPA), OCCUPATIONAL SAFETY AND HEALTH

ADMINISTRATION (OSHA), VIRGINIA OCCUPATIONAL AND SAFETY HEALTH

COMPLIANCE PROGRAM (VOSH ENFORCEMENT), VIRGINIA OVERHEAD HIGH

VOLTAGE LINE SAFETY ACT, NATIONAL EMISSIONS STANDARDS FOR

HAZARDOUS AIR POLLUTANTS (NESHAPS), AND NATIONAL INSTITUTE OF

OCCUPATIONAL SAFETY AND HEALTH (NIOSH).

3. WHEN DURING THE COURSE OF CONSTRUCTION, ANY OBJECT OF AN

UNUSUAL NATURE IS ENCOUNTERED, THE CONTRACTOR SHALL CEASE WORK

IN THAT AREA AND IMMEDIATELY NOTIFY THE COR.

4. DRAINAGE STRUCTURES SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE

CURRENT VIRGINIA DEPARTMENT OF TRANSPORTATION DESIGN STANDARDS

AND SPECIFICATIONS.

5. UNDERGROUND FACILITIES HAVE BEEN PLOTTED FROM AVAILABLE SURVEYS

AND RECORDS AND THEREFORE THEIR LOCATION MUST BE CONSIDERED

APPROXIMATE ONLY, THERE MAY BE OTHERS. THE EXISTENCE OF WHICH IS

PRESENTLY NOT KNOWN. THE CONTRACTOR SHALL PROTECT ALL UTILITIES

AT HIS OWN INITIATIVE AND EXPENSE.

6. COMPACTED STRUCTURAL FILLS SHALL BE PLACED IN MAXIMUM 8-INCH THICK

HORIZONTAL LOOSE LIFT LIFTS AND SHALL BE COMPACTED TO 95% OF

THEORETICAL MAXIMUM DENSITY AS DETERMINED BY ASTM SPECIFICATION

D-698 STANDARD PROCTOR METHOD. SOIL MOISTURE CONTENTS AT THE TIME

OF COMPACTION SHALL BE WITHIN 20 PERCENT OF THE SOILS' OPTIMUM

MOISTURE CONTENT.

7. ALL FILL SOILS UNDER EXPANDED PAVED AREAS SHALL BE COMPACTED TO

95% OF THEORETICAL MAXIMUM DENSITY AS DETERMINED BY ASTM

SPECIFICATION D-698 STANDARD PROCTOR METHOD. THE TOP 12 INCHES IN

PAVEMENT AREAS SHALL BE COMPACTED TO AT LEAST 100%.

8. CONCRETE AND ROCK CAN BE DISPOSED ONSITE IN THE EROSION CONTROL

STOCKPILE AS DESIGNATED BY THE COR. CONCRETE AND ROCKS SHALL BE

BROKEN INTO PIECES NOT LARGER THAN EIGHT (8) INCHES AND THERE SHALL

NOT BE ANY EXPOSED REINFORCING STEEL. SURPLUS SUITABLE SOIL

MATERIAL SHALL BE STOCKPILED BY THE COR. UNSUITABLE SOIL AND ALL

OTHER DEBRIS MATERIAL SHALL BE HAULED FROM THE SITE IN ACCORDANCE

WITH ALL LAWS/REGULATIONS. PROVIDE AN EROSION AND SEDIMENT

CONTROL PLAN FOR ANY OFFSITE DISPOSAL AREAS.

9. GRADING, EXCAVATING, CONSTRUCTION OF THE PROJECT SHALL NOT

COMMENCE UNTIL THE APPROPRIATE EROSION AND SEDIMENT CONTROL

MEASURES ARE IN PLACE AS SPECIFIED ON THIS PLAN.

10. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL NECESSARY

PERMITS AND LICENSES REQUIRED BY THE STATE OF VIRGINIA OR OTHER

GOVERNING AGENCIES INVOLVED UNDER THIS CONTRACT.

11. APPROPRIATE FENCING AND BARRICADES SHALL USED WHEN WORK OCCURS

NEAR PEDESTRIAN WALKWAYS.

12. DIMENSIONS SHOWN AT CURB ARE TO FACE OF CURB.

13. PROVIDE POSITIVE DRAINAGE AT ALL GRADED AREAS.

14. IF PORTABLE TOILETS ARE NECESSARY FOR THE CONSTRUCTION OF THE

PROJECT, LOCATE A MINIMUM OF 50 FEET AWAY FROM THE NEAREST

STORMWATER FEATURE (INLET, SWALE, POND, ETC).

15. A SMOOTH GRADE SHALL BE MAINTAINED FROM EDGE OF PAVEMENT OF

EXISTING ROAD TO PROPOSED CURB AND GUTTER AND/OR PROPOSED

PAVEMENT TO PRECLUDE THE FORMING OF FALSE GUTTERS AND/OR THE

PONDING OF ANY WATER ON THE ROADWAY. REMOVE AND RECONSTRUCT

EXISTING PAVEMENT AND/OR CURB AS DICTATED BY FIELD CONDITIONS TO

PROVIDE POSITIVE DRAINAGE AT TIE-IN-POINTS.

16. ALL SOLID WASTE, HAZARDOUS WASTE, AND HAZARDOUS MATERIALS MUST

BE MANAGED IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE AND

LOCAL ENVIRONMENTAL REGULATIONS.

17. AIR QUALITY REGULATIONS: THE FOLLOWING SECTIONS OF THE CODE OF

VIRGINIA AND VIRGINIA ADMINISTRATIVE CODE ARE APPLICABLE:

· ASPHALT PAVING OPERATIONS (9 VAC 5-45-780 ET. SEQ.)

· FUGITIVE DUST AND EMISSIONS CONTROL (9 VAC 5-50-60 ET. SEQ.)

· BURNING IS NOT PERMITTED ON THE MWEOC

· PERMITS FOR FUEL BURNING EQUIPMENT (9 VAC 5-80-1100 ET. SEQ.)

18. THE REMOVAL OF ANY REGULATED PETROLEUM STORAGE TANKS, ABOVE

GROUND STORAGE TANKS (AST) OR UNDERGROUND STORAGE TANKS (UST),

MUST BE IN ACCORDANCE WITH THE REQUIREMENTS OF THE VIRGINIA TANK

REGULATIONS 9 VAC 25-91-10 ET. SEQ. (AST) AND/OR 9 VAC 25-580-10 ET. SEQ.

(UST).

19. CONTRACTOR IS RESPONSIBLE FOR ALL PROJECT STAKEOUT

20. NATURALLY OCCURRING ASBESTOS HAS BEEN IDENTIFIED IN THE

SUBSURFACE SOIL/ROCK LAYERS ON THIS PROPERTY DURING PREVIOUS

GEOTECHNICAL INVESTIGATIONS. IMPLEMENT ALL BEST PRACTICES FOR

EARTHWORK CONSTRUCTION IN/AROUND NATURALLY OCCURING ASBESTOS,

EQUIPMENT AND PERSONEL DECONTAMINATION ALONG WITH AIR MONITORS

AND DISPOSAL PRACTICES IN STRICT COMPLIANCE WITH THE MOST CURRENT

APPLICABLE REGULATIONS.

PROJECT NARRATIVE

THE WORK CONSISTS OF THE FOLLOWING:

1. CONSTRUCTION LINE ITEM 1 (CLIN 1) (BASE BID) SHALL INCLUDE THE

FOLLOWING:

a. THE CONTRACTOR UNDER THIS CONTRACT SHALL FURNISH ALL LABOR, MATERIALS, EQUIPMENT, FACILITIES, MANAGEMENT, SURVEYS, TESTING, AND SERVICES NECESSARY TO ACCOMPLISH THE PROJECT CONTRACT

REQUIREMENTS. THE PROJECT SITE IS LOCATED AT THE MT. WEATHER

EMERGENCY OPERATION CENTER (MWEOC) 19833 BLUERIDGE

MOUNTAIN RD, MT. WEATHER, VA 20135.

b. DISMANTLE AND STORE ONSITE (WITHIN ONE (1) MILE HAULING

DISTANCE) EXISTING ANTENNAS TO THE CONCRETE FOUNDATIONS.

CONCRETE FOUNDATIONS SHALL BE RAZED TO A DEPTH OF FIVE (5)

FEET BELOW DESIGN DEPTH OF PARKING LOT SUBGRADE.

c. HAZARDOUS MATERIAL ABATEMENT FOR THE REMOVAL OF ASBESTOS

CONTAINING MATERIALS AND LEAD BASED PAINT WITHIN BUILDING 420.

d. DEMOLITION OF BUILDING 420.

e. DEMOLITION OF THE PARKING LOT ACCESS APRONS AND THE ASPHALT

PARKING LOT SERVING BUILDING 420.

f. DEMOLITION OF A 1,500 GALLON UNDERGROUND FUEL STORAGE TANK.

g. REMOVAL OF EXISTING UTILITIES AS INDICATED ON THE DRAWINGS.

h. CONCRETE CAN BE DISPOSED ON SITE IN THE DESIGNATED EROSION

CONTROL STOCK PILE. CONCRETE AND ROCKS SHALL BE BROKEN INTO

PIECES NO LARGER THAN 8" AND THERE SHALL NOT BE ANY EXPOSED

REINFORCING STEEL. ALL OTHER DEBRIS SHALL BE REMOVED FROM

THE SITE.

i. SITE WORK SHALL INCLUDE ESTABLISHING AND MAINTAINING EROSION

AND SEDIMENT CONTROLS THROUGHOUT CONSTRUCTION.

j. CONSTRUCTION OF PARKING LOT AND SIDEWALKS COMPLETE WITH

SIGNAGE, PAVEMENT MARKINGS, STORM DRAINAGE SYSTEM, BUS

SHELTER, AND SITE LIGHTING.

k. ESTABLISH NEW ELECTRICAL SERVICE ON EQUIPMENT ON A NEW

EXTERIOR CONCRETE PAD INTERCEPTING EXISTING FEEDERS TO

BUILDINGS 408 AND 410, CURRENTLY SERVED FROM BUILDING 420. NEW

ELECTRICAL SERVICE SHALL ACCOMMODATE SITE LIGHTS AND

OUTLETS.

l. REPLACEMENT OF THE EXISTING SIDEWALK ALONG BALLOON SHED

DRIVE.

m. CONDUIT/DUCT INSTALLATION AND BOXES/PEDESTALS FOR THE BUS

SHELTER PHONE, SECURITY CAMERAS, VEHICLE CHARGING STATION,

MOBILE COMMUNICATION VEHICLE POWER AND MOBILE

COMMUNICATION VEHICLE COMMUNICATION COMPLETE WITH PULL

STRINGS.

n. GRADING, TURF, AND LANDSCAPING ESTABLISHMENT.

2. CONSTRUCTION LINE ITEM 2 (CLIN 2) (BID OPTION 1) SHALL INCLUDE THE

FOLLOWING:

a. INSTALLATION OF FOUR (4) CHARGE POINT CT 250 CHARGING STATIONS

MATCHING SITE WIDE INFRASTRUCTURE. INSTALLATION SHALL INCLUDE

CHARGING STATION PEDESTALS AND MOBILE COMMUNICATION VEHICLE

PEDESTALS INCLUDING CONCRETE FOUNDATIONS, CONDUIT ROUTING

FROM JUNCTION BOXES, AND ALL ELECTRICAL EQUIPMENT AND

CIRCUITRY NECESSARY FOR COMPLETE OPERATIONAL SYSTEMS. WORK

TO INCLUDE COMMUNICATIONS CIRCUITRY FOR CHARGING STATIONS

FOR POINT OF SALE FUNCTIONALITY. COMMUNICATION PATH CONDUIT

REQUIRED FROM JUNCTION BOXES TO MOBILE COMMUNICATION

VEHICLE PEDESTALS.

STORMWATER NOTES

1. THE DEQ INSPECTOR SHOULD B INVITED TO THE PRE-CONSTRUCTION MEETING

AND NOTIFIED ONE WEEK PRIOR TO THE START OF LAND DISTRUBANCE.

PLEASE CONTACT MARK REMSBERG TO COORDINATE THESE NOTIFICATIONS.

MARK CAN BE REACHED AT 703-583-3874 OR

MARK.REMSBERG@DEQ.VIRGINIA.GOV. PLEASE REACH OUT TO MR. REMSBERG

TO ACCOMMODATE RENEWED DEQ ACCESS TO THE MWEOC FACILITY.

2. DEQ CONSTRUCTION GENERAL PERMIT SELF-SITE INSPECTIONS SHALL BE

PERFORMED ONCE EVERY 5-BUSINESS DAYS AND WITHIN 24 HOURS AFTER A

MEASURABLE STORM EVENT OR ONCE EVERY 4-BUSINESS DAYS. A

MEASURABLE STORM EVENT IS DEFINED AS A RAINFALL EVENT PRODUCING

0.25 INCHES OF RAIN OVER 24 HOURS OR SNOWMELT FROM A SNOW EVENT

PRODUCING 3.25 INCHES OR MORE OF SNOW WITHIN 24-HOUR PERIOD IN

ACCORDANCE WITH 9VAC25-880.1.

3. IF AN OFFSITE DISPOSAL AREA IS IDENTIFIED DURING CONSTRUCTION, THE

CONSTRUCTION ACTIVITY OPERATOR SHALL PROVIDE DETAILED INFORMATION

TO DEQ, THROUGH THE UPDATING OF ITS REGISTRATION STATEMENT,

REGARDING THE LOCATION OF THE DISPOSAL SITE AND MATERIAL TO BE

DISPOSED OF AT THAT SITE. THIS NOTIFICATION TO DEQ NEEDS TO OCCUR

PRIOR TO TRANSPORTING ANY MATERIAL OFF-SITE.

4. A NOTICE OF TERMINATION (NOT) PACKAGE MUST BE SUBMITTED, AND

ACCEPTED BY DEQ AS COMPLETE, PRIOR TO SCHEDULING A FINAL DEQ SITE

INSPECTION. THE NOTICE OF TERMINATION REQUIRES AS-BUILT

CONSTRUCTION RECORD DRAWINGS FOR ALL PERMANENT STORMWATER

INFRASTRUCTURE. THESE DRAWINGS SHOULD REPRESENT THE STORMWATER

MANAGEMENT FACILITIES AS THEY WERE CONSTRUCTED. THE INFORMATION

SHOULD BE DETAILED ENOUGH THAT THE FACILITY COULD BE

RECONSTRUCTED TO THE ORIGINAL CONSTRUCTED SPECIFICATIONS. PLEASE

REFER TO SECTION 4.4.3.1 OF DEQ'S UPDATED STORMWATER MANAGEMENT

HANDBOOK ENTITLED BMP RECORD DOCUMENTS AND CERTIFICATIONS FOR

MORE INFORMATION. SOME INFORMATION MAY NEED TO BE COLLECTED WHILE

THE FACILITY IS BEING CONSTRUCTED SINCE SOME VITAL COMPONENTS WILL

NOT BE VISIBLE OR ACCESSIBLE ONCE IT IS COMPLETED. A LICENSED

PROFESSIONAL OF RECORD MUST CERTIFY THAT THE FACILITY HAS BEEN

CONSTRUCTED IN ACCORDANCE WITH APPROVED PLANS AND SPECIFICATION,

AND IN ORDER TO CERTIFY THIS, CONSTRUCTION OF CERTAIN COMPONENTS

MUST BE OBSERVED.

STORMWATER LONG-TERM INSPECTION, OPERATION & MAINTENANCE REQUIREMENTS

A. GENERAL

DO NOT ENTER UNDERGROUND CHAMBERS OR VAULTS UNLESS OCCUPATIONAL SAFETY & HEALTH ADMINISTRATION (OSHA) REGULATIONS FOR CONFINED SPACE ENTRY ARE FOLLOWED. ALL ACCESS BELOW GRADE SHOULD BE DONE BY A QUALIFIED ENGINEER AND/OR CONTRACTOR.

B. RESPONSIBILITY

INDIVIDUAL(S) RESPONSIBLE FOR THE O&M AND INSPECTION WORK WILL BE ROADS & GROUNDS STAFF TO INCLUDE TITLE AS “MAINTENANCE WORKER” AND “ENGINEERING EQUIPMENT OPERATOR.” WITH OVERSITE BY MOUNT WEATHER FACILITIES MANAGEMENT DIVISION AND ESOH.

C. RECOMMENDED SCHEDULE FOR MAINTENANCE AND INSPECTION.

C-1. OUTLET CONTROL STRUCTURE (OCS):

· AFTER MAJOR RAIN EVENTS: CHECK THAT THE OCS IS FUNCTIONING AS DESIGNED.

· ONCE A YEAR: CHECK IF SEDIMENT AND/OR DEBRIS HAVE ACCUMULATED IN THE OCS AND REMOVE, AS NECESSARY.

· EVERY TWO YEARS: CHECK SEALS WHERE STORM PIPES PENETRATE THE WALLS OF THE OCS. ALL SEALS MUST BE WATERTIGHT WITH NO VISIBLE

SIGNS OF SEEPAGE OR SOIL INTRUSION FROM OUTSIDE OF THE OCS. ANY SEAL REPAIRS SHOULD BE PERFORMED BY A QUALIFIED CONTRACTOR.

· EVERY FIVE YEARS: THE OWNER SHOULD HIRE A QUALIFIED ENGINEER/CONTRACTOR TO PERFORM A STRUCTURAL INSPECTION OF THE OCS

INCLUDING ALL STRUCTURAL ELEMENTS. THE ENGINEER/CONTRACTOR SHOULD PROVIDE THE OWNER WITH A REPORT THAT DOCUMENTS ALL FINDINGS OF THE INSPECTION INCLUDING ANY DEFICIENCIES FOUND WITH RECOMMENDATIONS ON HOW THEY SHOULD BE CORRECTED.

C-2. STORMCAPTURE MODULES BY OLDCASTLE INFRASTRUCTURE

· · FOLLOW MANUFACTURE'S REQUIREMENTS. REFERENCE COPY INCLUDED IN THE PROJECT'S DESIGN ANALYSIS REPORT:

C-3. PERMENENT LEVEL SPREADER

· INSPECT THE LEVEL SPREADER AT LEAST ONCE A YEAR AND AFTER EVERY MEASURABLE RAINFALL EVENT (I.E., 0.5 INCH PER 24 HOURS) AND MAKE

REPAIRS IMMEDIATELY AS NEEDED.

· MAINTAIN THE LEVEL SPREADER LIP AT ZERO GRADE TO ALLOW PROPER FUNCTION OF THE MEASURE. AVOID THE PLACEMENT OF ANY MATERIAL ON

THE LEVEL SPREADER AND PREVENT CONSTRUCTION TRAFFIC ACROSS THE STRUCTURE.

· IMMEDIATELY REPAIR ANY DAMAGE TO THE LEVEL SPREADER. INSPECT THE LEVEL SPREADER IN THE SAME CONDITIONS FOR SUBSIDENCE ALONG

THE PERIMETER OF THE MEASURE.

· INSPECT FOR LOW POINTS, SAGS, CRACKS, BREAKS, ETC. IN THE LEVEL SPREADER THAT WOULD RESULT IN CONCENTRATED FLOW DISCHARGING

OVER THE SPREADER. ANY IDENTIFIED ALTERATIONS TO THE GRADE OF THE LEVEL SPREADER MUST BE REPAIRED IMMEDIATELY.

· DEBRIS BUILDUP WITHIN THE CHANNEL SHOULD BE REMOVED WHEN IT HAS ACCUMULATED TO 20% OF CHANNEL CAPACITY. INSPECT THE

DOWNSTREAM AREA OF THE LEVEL SPREADER FOR ANY DEVELOPMENT OF WATER CHANNELIZATION OR SUBSIDENCE.

NOT IN CONTRACT

X X

XXXXXX

X X

X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X

X

XXXXXX

X X

X X

XREMOVE EX.

TREES

X X

REMOVE EXISTING TREES WITHIN

LIMITS OF CLEARING AND GRADING

SEE NOTE 20

EX. CLEANOUT

(TO BE REMOVED)

EX. COMM

(TO REMAIN)

EX. CLEANOUT

(TO BE REMOVED)

EX. SSWR MH

(TO BE REMOVED)

EX. TRENCH DRAIN

(TO BE REMOVED)

EX. CONCRETE

(TO BE REMOVED)

EX. CONCRETE

(TO BE REMOVED)

EX. STORM

(TO BE REMOVED)

EX. ASPHALT

(TO BE REMOVED)

EX. ASPHALT

(TO BE REMOVED)

EX. COMM

(TO BE MAINTAINED)

EX. SANITARY SEWER

(TO BE REMOVED)

EX. WATER SERVICE

(TO BE REMOVED)

X X X X

EX. STORM

(TO BE REMOVED)

EX. CLEANOUT

(TO BE REMOVED) EX. ELEC

(TO BE REMOVED)

EX. SSWR

(TO BE REMOVED)

X X X X X X X X X X

X

X X

X X

X X

X

X X X X X X X X X X XX

CONC. SIDEWALK

(TO BE REMOVED)

CONC. SIDEWALK

(TO BE REMOVED)

CONC. SIDEWALK

(TO BE REMOVED)

EX. COMM MANHOLE

(TO REMAIN)

ELEC MANHOLE

(TO REMAIN)

EX. COMM MANHOLE

(TO REMAIN)

EX. COMM

(TO BE REMOVED)

X

XX

XX

PLUG DEMOLISHED INFLOW

(SEE NOTE 17)

EX. 1500 GALLON FUEL

TANK TO BE REMOVED

LIMITS OF DISTURBANCE

LIMITS OF DISTURBANCE

PLUG AND BLOCK EXISTING

WATERLINE AT TEE PER

DETAIL ON SHEET C-501

INSTALL PLUG AT EX.

MANHOLE PER DETAIL ON

SHEET C-501

X X X X

INSTALL PLUG AT EX.

STRUCTURE PER DETAIL ON

SHEET C-501

B-01

B-02

B-03

B-04

B-06

B-07

B-05

B-08

EX. WATER

(TO REMAIN)

EX. WATER

(TO REMAIN)

EX. ELECT.

(TO REMAIN)

EX. TELEPHONE

(TO REMAIN)

EX. WATER

(TO REMAIN)

EX. SEWAGE

FORCE MAIN

(TO BE REMOVED)

EX. COMM

(TO REMAIN)

EX. ELECT.

(TO BE REMOVED)

EX. COMM

(TO REMAIN)

X X

X X X X X X X X X X X X X X X X

EX. ELECT.

(TO REMAIN)

EX. COMM

(TO REMAIN)

EX. ELECT.

(TO REMAIN)

X X

X X

X X

X X

X X

X X

X X

X X

X X

X

X X

X

EX. SHURBS

(TO BE REMOVED)

X

EX. BUILDING 420

(TO BE DEMOLISHED)

EX. STORM PLUMBING

LEADERS & PIPES

(TO BE REMOVED)

X

EXISTING LIGHT

TO REMAIN IN SERVICE.

TEMPORARILY REMOVE AND

RECONSTRUCT/INSTALL LIGHT

POLE/FOUNDATION

IF NECESSARY TO FACILITATE

PROPOSED WORK.

KEY PLAN

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65432

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Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

CD-100

DEMOLITION PLAN

DEMOLITION NOTES

1. NO LAND DISTURBANCE, AS DEFINED IN 9VAC25-875-20,

ASSOCIATED WITH DEMOLITION SHALL OCCUR UNTIL DEQ’S

CONSTRUCTION GENERAL PERMIT COVERAGE LETTER IS

OBTAINED AND POSTED AT THE CONSTRUCTION SITE.

2. NO DEMOLITION CAN BEGIN UNTIL ALL PHASE 1 EROSION AND

SEDIMENT CONTROL MEASURES ARE IN PLACE.

3. THE CONTRACTOR SHALL HAVE ALL UTILITIES FIELD DELINEATED AND

MARKED PRIOR TO COMMENCEMENT TO WORK. MWEOC REQUIRES A

MINIMUM OF SEVEN (7) DAYS NOTICE TO COMPLETE UTILITY

MARKINGS.

4. ALL WORK SHALL BE PERFORMED IN STRICT COMPLIANCE WITH THE

MOST CURRENT APPLICABLE FEDERAL, STATE AND LOCAL LAWS AND

REGULATIONS, INCLUDING BUT NOT LIMITED TO ENVIRONMENTAL

PROTECTION AGENCY (EPA), OCCUPATIONAL SAFETY AND HEALTH

ADMINISTRATION (OSHA), NATIONAL EMISSIONS STANDARDS FOR

HAZARDOUS AIR POLLUTANTS (NESHAPS) AND NATIONAL INSTITUTE

OF OCCUPATIONAL SAFETY AND HEALTH (NIOSH) AND DEQ'S

CONSTRUCTION GENERAL PERMIT.

5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE COORDINATION

OF WORK WITH MWEOC AND FOR THE IMPLEMENTATION OF REQUIRED

UTILITY-RELATED WORK.

6. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE COR UPON

ENCOUNTERING ANY HAZARDOUS MATERIALS DURING DEMOLITION

AND/OR CONSTRUCTION ACTIVITIES. THE CONTRACTOR SHALL

DOCUMENT SAME TO THE COR AND OBTAIN DIRECTION AS TO THE

APPROPRIATE ACTION(S) TO BE TAKEN IN ACCORDANCE WITH THE

CONSTRUCTION SPECIFICATION.

7. DISCONNECTION OF THE SERVICES AND SYSTEMS SUPPLYING

UTILITIES TO BE DEMOLISHED SHALL BE COMPLETED PRIOR TO OTHER

SITE DEMOLITION IN FULL COMPLIANCE WITH APPLICABLE CODES,

REGULATIONS, AND THE REQUIREMENTS OF MWEOC. THE

CONTRACTOR SHALL BE RESPONSIBLE FOR COORDINATION WITH

MWEOC. REFER TO THE CONSTRUCTION SPECIFICATIONS FOR

ADDITIONAL INFORMATION.

8. NEW UTILITIES NEED TO BE INSTALLED AND READY FOR SERVICE

PRIOR TO DISCONNECTION/DEMOLITION OF EXISTING UTILITIES.

EXTENDED OUTAGES NEEDED FOR TRANSITION/CONNECTION TO NEW

UTILITY SERVICES SUCH AS ELECTRICAL, COMMUNICATIONS, WATER,

AND SANITARY MAY NEED TO BE CONDUCTED AFTER NORMAL DUTY

HOURS. COORDINATE CONNECTIONS/TRANSITIONS WITH THE COR.

9. PRIOR TO REMOVAL OF MATERIALS OVER EXISTING UTILITY SYSTEMS,

THE CONTRACTOR SHALL DOCUMENT EXISTING CONDITIONS AND, IF

AT VARIANCE WITH CONDITIONS AS REPRESENTED ON THE PLANS,

NOTIFY THE COR AND OBTAIN DIRECTIONS TO THE APPROPRIATE

ACTION(S) TO BE TAKEN.

10. PRIOR TO COMMENCING NEW WORK, THE CONTRACTOR SHALL

PROTECT FROM DAMAGE EXISTING ADJACENT AREAS. ALL ADJACENT

AREAS DAMAGED DURING DEMOLITION AND/OR CONSTRUCTION

ACTIVITIES SHALL BE RESTORED TO ORIGINAL OR BETTER CONDITION

AT NO ADDITIONAL COST TO THE GOVERNMENT.

11. THE CONTRACTOR SHALL PROTECT AND PREVENT DAMAGE TO

EXISTING ON-SITE UTILITY DISTRIBUTION FACILITIES.

12. DURING DEMOLITION AND/OR CONSTRUCTION ACTIVITIES, THE

CONTRACTOR SHALL IMMEDIATELY NOTIFY THE COR UPON

ENCOUNTERING ANY EXISTING UTILITIES AND/OR UTILITY SYSTEM

STRUCTURES NOT SHOWN ON THESE PLANS. THE CONTRACTOR

SHALL DOCUMENT SAME TO THE COR AND OBTAIN DIRECTIONS AS TO

THE APPROPRIATE ACTION(S) TO BE TAKEN. DO NOT DISTURB

WITHOUT COR PERMISSION.

13. ALL EXISTING UTILITY STRUCTURES TO REMAIN ARE REQUIRED TO BE

ADJUSTED FLUSH WITH PROPOSED GRADE, AS NEEDED. THIS

INCLUDES BUT IS NOT LIMITED TO MANHOLES, VALVES, CLEANOUTS,

HANDHOLES, METERS AND STORM DRAINAGE INLETS.

14. SITE LIGHTS AND LIGHT POLES THAT ARE REMOVED SHALL BE

SALVAGED AND RETURNED TO THE GOVERNMENT.

15. THERE IS A GOVERNMENT OPERATED SECURITY CAMERA ON BUILDING

420 WITH INFRASTRUCTURE TIED TO THE MWEOC CAMPUS SYSTEM

FOR DISPATCH. THE ET SHOP WILL RELOCATE THE CAMERA AND

INFRASTRUCTURE BEFORE DEMOLITION OF THE FACILITY.

16. PRIOR TO THE START OF BUILDING DEMOLITION, ONCE THE FIRE

ALARM IS DECOMMISSIONED, ET SHOP PERSONNEL WILL REMOVE THE

CABINET CONTAINING THE MN-NET RELAY AND THEN ALL OTHER

REMAINING FIRE ALARM DEVICES/EQUIPMENT CAN BE DEMOLISHED

WITH THE BUILDING BY THE CONTRACTOR.

17. DEMOLISHED INFLOW HOLE SHALL BE PLUGGED. CONTRACTOR SHALL

SEAL LEAKS AND VACUUM TEST FOR COMPLIANCE WITH PROJECT

SPECIFICATIONS.

18. SEE "ACM AND LBP INTERIOR SURVEY" PERFORMED IN FEBRUARY 2010

AND SHEET C-506 FOR BUILDING 420 FLOOR PLAN AND

ASBESTOS-CONTAINING MATERIALS (ACM) AND LEAD-BASE PAINT (LBP)

INTERIOR SURVEY FINDINGS.

19. WHERE TREES ARE NOTED TO BE REMOVED, OPERATIONS SHALL

INCLUDE CLEARING AND GRUBBING THE REMOVAL AREA AND

RETURNING GRADE TO A CONDITION THAT CAN BE MOWED.

20. SALVAGE EXISTING ANTENNAS: DISMANTLE EXISTING ANTENNAS TO

THE CONCRETE FOUNDATION AND STORE ONSITE. STORAGE

LOCATION PER COR DIRECTION WITHIN ONE (1) MILE HAULING

DISTANCE. RAZE CONCRETE FOUNDATION TO A DEPTH OF FIVE (5)

FEET BELOW PROPOSED PARKING LOT SUBGRADE.

PHASING NOTES

1. ACCESS TO BUILDING 444 SHALL BE MAINTAINED THROUGHOUT

CONSTRUCTION.

2. BALLOON SHED DRIVE SHALL REMAIN OPEN TO 2-LANE TRAFFIC AT ALL

TIMES.

18. PROVIDE TEMPORARY SERVICES OR BY-PASS FOR UTILITIES THAT ARE

IMPACTED FOR MORE THAN 4-HOURS TO SERVICE IMPACTED

BUILDING(S) (I.E. BUILDING 444) AS APPLICABLE.

DEMOLITION LEGEND

X X

9.5'19 .0

9.5'19 .0

9.5'19

.0

9.5'19 .0

.0

10.0'

.0

.0

22.0'

22.0'

9.

5'

17.0'

22.0'

22.0'

9.5

5' CONCRETE SIDEWALK

5' CONCRETE SIDEWALK

MODULAR BLOCK

RETAINING WALL

(MAX HT. ±4')

CG-6 CG-6

CG

-6

C G

-6

BUS SHELTER ON

CONCRETE PAD WITH

SURROUNDING CURB

SEE DETAILS ON

SHEET C-500

J

J

J

PARKING LOT

LIGHT (TYP.)

PARKING LOT

LIGHT (TYP.)

CLIN 2: INSTALL FOUR (4)

ELECTRIC VEHICLE

CHARGING STATIONS

(SEE ELEC. PLAN AND

C-500 FOR PAD DETAILS)

BOLLARD (TYP.)

CONCRETE STAIRCASE (VDOT S-2, W=5).

TOP OF STAIR=1704.5'. BOTTOM OF STAIR=1699.0'

PROVIDE HANDRAIL (VDOT HR-1).

5' CONCRETE SIDEWALK

3.0'

ROLL-UP COMM VEHICLE

CONNECTION POINTS

(SEE ELEC. PLAN)

DETECTABLE WARNING

SURFACE REQUIRED (SEE

DETAIL ON SHEET C-501)

DETECTABLE WARNING

SURFACE REQUIRED (SEE

DETAIL ON SHEET C-501)

DETECTABLE WARNING

SURFACE REQUIRED

(SEE DETAIL ON SHEET

C-501)

ELECTRICAL SERVICE

EQUIPMENT ON

CONCRETE PAD

DETECTABLE WARNING

SURFACE REQUIRED (SEE

DETAIL ON SHEET C-501)

6.

0' 16

.0

REALIGN GRAVEL ACCESS ROAD

AROUND EXTENT OF FILL

VDOT STD CG-12 TYPE B

(SEE DETAIL ON SHEET

C-501)

19.0' 1.0'9

C G

-6

LIMITS OF DISTURBANCE

LIMITS OF DISTURBANCE

CG-6

END CG-6

BEGIN CG-6

2 3

R7.0'

R7.5'

R1 0.0

R7.0'

R35.0'

R15.0'

R7.5' R7.5

R7.5'

R10.0'

R5 .0

R15 .0'

R15.0' R3.0'

R3.0'

R2.0

R2.0'

R2.0'

R2.0' R2.0'

59 60

R

9.

0'

SITE GEOMETRIC COORDINATES

POINT NO.

NORTHING

7,070,531.2

7,070,428.9

7,070,420.9

7,070,401.5

7,070,245.1

7,070,272.3

7,070,295.0

7,070,325.3

7,070,333.5

7,070,333.0

7,070,343.7

7,070,356.4

7,070,478.1

7,070,465.0

7,070,476.5

7,070,506.1

7,070,523.9

7,070,510.0

7,070,478.8

7,070,438.8

7,070,399.9

7,070,405.3

EASTING

11,656,282.2

11,656,203.5

11,656,214.0

11,656,208.0

11,656,411.3

11,656,432.2

11,656,487.1

11,656,510.4

11,656,507.1

11,656,481.5

11,656,461.9

11,656,460.2

11,656,302.1

11,656,292.0

11,656,289.3

11,656,312.2

11,656,291.7

11,656,331.6

11,656,333.0

11,656,375.9

11,656,426.7

11,656,430.8

SITE GEOMETRIC COORDINATES

POINT NO.

NORTHING

7,070,416.9

7,070,419.7

7,070,387.7

7,070,366.6

7,070,361.6

7,070,357.5

7,070,325.4

7,070,319.0

7,070,303.1

7,070,287.3

7,070,308.8

7,070,430.5

7,070,398.4

7,070,241.9

7,070,254.9

7,070,239.8

7,070,231.5

7,070,246.6

7,070,179.4

7,070,150.6

7,070,008.9

7,070,493.0

EASTING

11,656,429.2

11,656,434.0

11,656,476.6

11,656,479.5

11,656,519.1

11,656,500.3

11,656,487.3

11,656,471.9

11,656,459.7

11,656,447.5

11,656,423.6

11,656,265.5

11,656,205.6

11,656,408.9

11,656,382.7

11,656,400.3

11,656,393.1

11,656,375.4

11,656,367.2

11,656,325.7

11,656,437.0

11,656,312.1

SITE GEOMETRIC COORDINATES

POINT NO.

NORTHING

7,070,486.4

7,070,343.4

7,070,340.2

7,070,445.2

7,070,426.9

7,070,312.4

7,070,294.2

7,070,446.0

7,070,416.1

7,070,259.4

7,070,266.4

7,070,294.1

7,070,297.1

7,070,424.7

7,070,372.6

7,070,314.6

7,070,480.7

7,070,419.4

7,070,371.7

7,070,409.9

7,070,401.0

7,070,124.6

EASTING

11,656,299.5

11,656,450.1

11,656,451.2

11,656,265.2

11,656,251.2

11,656,437.8

11,656,423.8

11,656,168.2

11,656,201.0

11,656,316.9

11,656,316.0

11,656,343.6

11,656,339.6

11,656,273.0

11,656,340.8

11,656,416.1

11,656,316.5

11,656,387.1

11,656,457.7

11,656,192.9

11,656,194.4

11,656,366.2

SITE GEOMETRIC COORDINATES

POINT NO.

NORTHING

7,070,059.9

EASTING

11,656,405.9

WHEELSTOP (TYP.)

(SEE C-500 FOR DETAIL)

MANHOLE

PIPE END SECTION

MANHOLE

EXISTING ELECTRIC

HANDHOLE

EXISTING ELECTRIC

MANHOLE

C-111

SITE PLAN

LEGEND

ASPHALT PAVEMENT

CONCRETE SIDEWALK

PROPOSED PARKING TABULATION

PROPOSED PARKING SPACES (9.5'x19'): 113 PROPOSED OVERSIZED SPACES (10'x40'): 3

KEY PLAN

E

65432

APPROVED BY

CHECKED BY

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SHEET NO.

TITLE

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No. DescriptionDATE BY

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Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

NOTE:

CONTRACTOR IS RESPONSIBLE

FOR PROJECT SURVEY STAKEOUT.

LIMITS OF DISTURBANCE

ADJUST EXISTING

HANDHOLD TO

PROPOSED

GRADE

15" RCP

MODULAR BLOCK

RETAINING WALL

(MAX HT. ±4')

ADJUST EX. COMM MH TO PROPOSED GRADE

EX. COMM

TO REMAIN

3:1 SLO

PE

3:1 SLOPE

15" R C

P

STM

STM

STORMWATER MANAGEMENT FACILITY UG-1

(6) STORMCAPTURE MODULES BY

OLDCASTLE INFRASTRUCTURE OR EQUAL

INSIDE DIMENSIONS: 7'W X 15'L X 6'H

TOTAL STORAGE=3,780 CF

INSIDE TOP ELEV=1691.00

SYSTEM INVERT=1685.00

IN=1688.75 (15" STM)

OUT=1685.00 (36" OPENING INTO FLOW CONTROL STR)

FLOW CONTROL STRUCTURE BY

OLDCASTLE INFRASTRUCTURE OR EQUAL

(SEE SHEET C-501 FOR DETAIL)

J

J

J

PARKING LOT

LIGHT (TYP.)

PARKING LOT

LIGHT (TYP.)

CLIN 2: INSTALL FOUR (4)

ELECTRIC VEHICLE

CHARGING STATIONS

(SEE ELEC. PLAN AND

C-500 FOR PAD DETAILS)

3:1 SLO

PE

ROLL-UP COMM VEHICLE

CONNECTION POINTS

(SEE ELEC. PLAN)0.5%1702.46

1701.78

1701.29

ELECTRICAL SERVICE

EQUIPMENT ON

CONCRETE PAD

6' PVC DRAIN

1701.82

1701.59

1702.06

1703.511707.33

1707.89

1702.91

1702.67 1700.78

OUT

STM

0A

STM

FCS

STM

0B

STM

15" RCP

1702 1703

1703.17

FFE=1707.85

15" RCP

167516761678

LEVEL SPREADER

WITH PLUNGE POOL

SEE DETAIL SHT C-500

C-122

GRADING,

DRAINAGE & UTILITY

PLAN

KEY PLAN

E

65432

APPROVED BY

CHECKED BY

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REVISIONS

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TITLE

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No. DescriptionDATE BY

NORTH

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Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

15" RCP 3:1 SLO

PE

3:1 SLOPE

15" R C

P

J

J

J

3:1 SLO

PE

0.5%

15" RCP

15" RCP

1 QM

15 AA

5 JV

3 PT

42 AA

42 CA

4 QM

85 HC

93 HC

21 RA

50 CA

99 RA

153 HC

38 RA

C-131

LANDSCAPE PLAN

KEY PLAN

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CHECKED BY

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Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

9.5'19 .0

9.5'19 .0

9.5'19 .0

9.5'19 .0

.0

10.0'

.0

.0

22.0'

22.0'

9.

5'

17.0'

22.0'

9.5

J

J

J

3.0'

6.

0'

.0

19.0'

1.0'

LIMITS OF DISTURBANCE

LIMITS OF DISTURBANCE

C-141

SIGNAGE AND

MARKING PLAN

KEY NOTES

1. "ELECTRIC VEHICLE CHARGING STATION (LEFT

ARROW/RIGHT ARROW)" SIGN

2. "PARKING" SIGN (RIGHT ARROW) W/ LOT # SIGN

3. "PARKING" SIGN (LEFT ARROW) W/ LOT # SIGN

4. "STOP" SIGN

5. "RV/BUS PARKING ONLY" SIGN

6. "SHUTTLE STOP" SIGN

7. WAYFINDING SIGN

8. 6" WHITE PARKING STRIPE (TYP.)

9. STOP BAR (TYPE B, CLASS I, WHITE, 24" WIDTH)

10. PHONE DIRECTORY SIGN

(TO BE MOUNTED INSIDE SHELTER)

11. CROSSWALK (TYPE B, CLASS I, WHITE, 24"

WIDTH)

12. 6" WHITE STRIPES, 45° ANGLE, 24" SPACING

KEY PLAN

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65432

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Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

CAFE/CONFERENCE CENTER

BUILDINGS 433/437

BUILDINGS 407/405

SHUTTLE: 540-542-2117

EMERGENCY: 540-542-3333

SHUTTLE:

540-542-2117

EMERGENCY:

540-542-3333

LOCATION:

LOT 420

LOT

LOT

NOTES

1. ALL SIGNAGE TO BE ENGINEER GRADE

REFLECTIVE SHEETING ON ALUMINUM.

2. SUBMIT PRODUCTION PROOF OF EACH SIGN

PRIOR TO FABRICATION FOR COR APPROVAL.

3. LOCATIONS ARE APPROXIMATE; COORDINATE

FINAL AND ACCEPTABLE LOCATION WITH COR

PRIOR TO INSTALLATION.

4. SEE CROSSWALK PAINTING DETAIL ON SHEET

C-501.

DC

TS

LIMITS OF DISTURBANCE

PROVIDE DUST CONTROL AND TEMPORARY

SEEDING AS REQUIRED THROUGH

CONSTRUCTION PHASING. COORDINATE

WITH DEQ INSPECTOR.

0.19AC @ C=0.32

TO SILT FENCE

X

X

X

XX

X

X

X

X

X

X

X

X

X

X

X

X

X X

X

X

0.14AC @ C=0.90 TO

ROOF DRAINS

0.06AC @ C=0.90 TO

DRAINAGE EX.

TRENCH DRAIN

0.14AC @ C=0.90 TO

ROOF DRAINS

0.21AC @ C=0.50

TO INLET PROTECTION

0.13AC @ C=0.83

TO SILT FENCE

0.21AC @ C=0.39

TO SUPER SILT

FENCE

0'

0.23AC @ C=0.41

TO SUPER SILT

FENCE

0.12AC @ C=0.35

TO SUPER SILT

FENCE

CONCRETE

WASHOUT

X

X

X

TEMP

STOCKPILE

LOCATION

0.15AC @ C=0.35

TO SUPER SILT

FENCE

X

X X

X

X X X X

X

X

X

X

X

X

X

X

X

X

XX

X

X

X

X

X

X

XX

X X

X X

X

X

X X

X X

X X

XX

XX XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX XX

XX

XX XX

XX

KEY PLAN

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65432

APPROVED BY

CHECKED BY

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SHEET NO.

TITLE

DRAWN BY

DATE

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SEAL

REVISIONS

No. DescriptionDATE BY

NORTH

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D P

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IN

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IN

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LI

TO

N

Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

C-152

EROS. AND SED.

CONTROL PLAN -

PHASE I

15" RCP 3:1 SLO

PE

3:1 SLOPE

15" R C

P

J

J

J

3:1 SLO

PE

0.5%1702.46

1701.78

1701.29

1701.82

1701.59

1702.06

1703.511707.33

1707.89

1702.91

1702.67 1700.78

15" RCP

1702 1703

1703.17

FFE=1707.85

15" RCP

167516761678

LIMITS OF DISTURBANCE

LIMITS OF DISTURBANCE

0.65AC @ C=0.83 TO

DRAINAGE STR. 10.40AC @ C=0.87 TO

DRAINAGE STR. 2

X X

X X

X X

X

X

X

XX

X

X

X

X

X

X

X

X

X

X

X

X

X X

X

X

XX

XX

XX

XX

XX XX XX

XX XX XX XX XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

X

X X

X

X X X X

X

X

X

X

X

X

X

X

X

X

XX

X

X

X

X

X

X

XX

X X

X X

X

X

C-161

KEY PLAN

E

65432

APPROVED BY

CHECKED BY

A

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REVISIONS

SHEET NO.

TITLE

DRAWN BY

DATE

SCALE

SEAL

REVISIONS

No. DescriptionDATE BY

NORTH

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B O

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IN

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A R

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IN

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IN

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TO

N

Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

EROS. AND SED.

CONTROL PLAN -

PHASE II

9+50 10+00 11+00 12+00 13+00 13+50

9+50 10+00 11+00 12+00 12+10

TO

P=

.1

STM

TO

P=

.0

STM

R

IM

=1

2.

FCS

STM

ST

A

+3

1.

=D I-3

B, (L

=6

(4 ' I

D

IN

V

O U

T=

.0

(1

5"

ST

A

+0

2.

=F

LO

W C

O N

TR

O

L

ST

R U

C

TU

R E

(S

EE

C -5

IN

V

O U

T=

.6

(1

5"

28.0 LF - 15" RCP (CL III)

@ 1.0%

75.0 LF - 15" RCP (CL III)

@ 1.0%

PROP. GRADE

EX. GRADE

PROP. GRADE

EX. GRADE

STORMCAPTURE SYSTEM

SEE SHEET C-502 FOR

DETAILS

LEVEL SPREADER

WITH PLUNGE

POOL, SEE DETAIL

SHEET C-500

PROP. GRADE

256.5 LF - 15" RCP (CL III)

@ 1.0%

2- 2"

E

LE

C D

U C

TS

TO

P

EL

EV

=1

5.

EX

. 6

" P

VC

S

SW

R F

M C

R O

SS

IN

G

TO

P

EL

EV

=1

4.

EX

. W

AT

ER

C R

O

SS

IN

G

IN

FO

N O

T

PR

O

VI

D

ED

EX

. E

LE

C

TR

IC

AL

D

U C

TS

(2

- 2 .5

EL

EV

=1

2.

EX

. E

LE

C

D U

C T

BA

N

K

TO

P=

.9

0, B

O T=

.2

ST

A

+7

5.

=D I-3

BB

L= 6'

IN

V

IN

=1

6.

(1 5"

IN

V O

U T=

.5

(1 5"

EX

. E

LE

C

TR

IC

AL

C

O N

D U

IT

S

(2

- 5

EL

EV

=1

1.

EX

. E

LE

C

C O

N D

U

IT

B

EN

D (2

- 5

EL

EV

=1

3.

EX

. E

LE

C

TR

IC

AL

D

U C

TS

(2

- 5

EL

EV

=1

4.

75.9 LF - 15" RCP (CL III)

@ 4.3%

ST

A

+7

4.

=V D

O T

ST

'D

M H

-2 D

I, 4'

IN

V

IN

=1

4.

(1

5"

IN

V

O U

T=

.3

(1

5"

R

IM

=1

1.

0A

STM

ST

A

+0

0.

=C O

N N

EC

T

IN

TO

ST

O

R M

C

AP

TU

R

E

SY

ST

EM

IN

VE

R T=

.7 5'

EX

. E

LE

C

D U

C T

BA

N

K

EX

. S

AN

IT

AR

Y

59.7 LF - 15" RCP (CL III)

@ 1.2%

ST

A

+9

8.

=V D

O T

ST

'D

M H

-2 D

I, 4'

IN

V

IN

=1

1.

(1

5"

IN

V

O U

T=

.5

(1

5"

TO

P=

.0

0B

STM

EX

. E

LE

C

TR

IC

AL

D

U C

TB

AN

K

EX

. S

AN

IT

AR

Y

(8 " P

VC

ST

A

+3

8.

=1 5"

E S-

IN

VE

R

T=

.8

0'

15" RCP

MODULAR BLOCK

RETAINING WALL

(MAX HT. ±4')

3:1 SLO

PE

3:1 SLOPE

15" R C

P

STM

STM

STORMWATER MANAGEMENT FACILITY UG-1

(6) STORMCAPTURE MODULES BY

OLDCASTLE INFRASTRUCTURE OR EQUAL

INSIDE DIMENSIONS: 7'W X 15'L X 6'H

TOTAL STORAGE=3,780 CF

INSIDE TOP ELEV=1691.00

SYSTEM INVERT=1685.00

IN=1688.75 (15" STM)

OUT=1685.00 (36" OPENING INTO FLOW CONTROL STR)

FLOW CONTROL STRUCTURE BY

OLDCASTLE INFRASTRUCTURE OR EQUAL

(SEE SHEET C-501 FOR DETAIL)

PARKING LOT

LIGHT (TYP.)

CLIN 2: INSTALL FOUR (4)

ELECTRIC VEHICLE

CHARGING STATIONS

(SEE ELEC. PLAN AND

C-500 FOR PAD DETAILS)

3:1 SLO

PE

1701.29

ELECTRICAL SERVICE

EQUIPMENT ON

CONCRETE PAD

6' PVC DRAIN

1702.91

1702.67 1700.78

OUT

STM

0A

STM

FCS

STM

0B

STM

15" RCP

1702 1703

1703.17

VDOT STD CG-12 TYPE B

(SEE DETAIL ON SHEET

C-501)

15" RCP

167516761678

LEVEL SPREADER

WITH PLUNGE POOL

SEE DETAIL SHT C-500

LIMITS OF DISTURBANCE

C-201

STORM SEWER

PROFILES

KEY PLAN

E

65432

APPROVED BY

CHECKED BY

A

B

C

D

F

REVISIONS

SHEET NO.

TITLE

DRAWN BY

DATE

SCALE

SEAL

REVISIONS

No. DescriptionDATE BY

NORTH

P O

B O

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V

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, V

IR

G

IN

IA

FE

D E

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D P

A R

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IN

G L

O T

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IN

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D E

M O

LI

TO

N

Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

NOTE:

ELEVATIONS OF EXISTING UTILITIES ARE ASSUMED. TEST

PITS ARE REQUIRED AS NOTED TO VERIFY ACTUAL

ELEVATIONS OF CROSSING UTILITIES.

THE EXISTING LAND COVER JUST

DOWNSTREAM OF THE LEVEL

SPREADER IS A COMBINATION OF

UNDISTURBED HEAVY THICK STANDS

OF GRASS AND FOREST. THE

AVERAGE SLOPE OF THIS AREA IS

APPROXIMATELY 19 %.

C-500

SITE DETAILS

COMPACTED SUBGRADE

6" VDOT 21-B

SUBBASE

1.5" VDOT SM 9.5A

3" VDOT BM 25.0D

WIDTH AS SHOWN ON PLANS

SUBGRADE

xW2.9xW2.9 WWF CONCRETE W/ 6 x 6

BASE COURSE

AGGREGATE 6"

4"

SLOPE: 1/4" : 1' (MAX)

4" - 4000 PSI CONCRETE

(AIR ENTRAINED)

6" - COMPOUNDED

VDOT #57 STONE

xW1.4xW1.4 WWF CONCRETE W/ 6 x 6

BASE COURSE

AGGREGATE 6"

6"

6" HYDRAULIC CEMENT

3"

6'- 0"

M

IN

12'-6" MIN

CONCRETE SLAB

A

A

KEY PLAN

E

65432

APPROVED BY

CHECKED BY

A

B

C

D

F

REVISIONS

SHEET NO.

TITLE

DRAWN BY

DATE

SCALE

SEAL

REVISIONS

No. DescriptionDATE BY

NORTH

P O

B O

X

, B

E R

R Y

V

IL

LE

, V

IR

G

IN

IA

FE

D E

R A

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M A

N A

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N T

A G

E N

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D E

P A

R

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F H

O M

E

LA

N D

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C U

R

IT

Y

IS

S

U E

D F

O R

C O

N S

TR

U

C

TI

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C O

N S

TR

U

C

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O N

A N

D P

A R

K

IN

G L

O T

B U

IL

D

IN

G

D E

M O

LI

TO

N

Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

6" WIDE BREAK IN BARRIER CURB TO

ENSURE POSITIVE DRAINAGE (SLAB

FLUSH TO GRASS)

5'-0" WIDE BREAK IN BARRIER CURB TO

CONNECT TO SIDEWALK (SLAB FLUSH TO

WALKWAY)

CONCRETE

BARRIER CURB-

6" WIDTH,

TOP=1708.50',

2" RADIUS EDGES,

CLASS A3 CONCRETE

6' X 10'

4"

#4 @ 12" EACH WAY

4" VDOT STD 21A

AGGREGATE

6"

SUBGRADE

3" CLR (TYP)

4"

ALL EXPOSED EDGES

ALONG TOP OF SLAB SHALL

HAVE A 3/4" CHAMFER

12"

45"

56"

12" MIN

NOTES:

1. CONCRETE TO VDOT STD. A-3.

2. REBAR TO BE #4, TOP AND BOTTOM, 12 IN. O.C.

3. MOUNTING SURFACE TO BE SMOOTH AND CANNOT EXCEED A SLOPE OF 14 IN./FT.

4. CENTER CHARGING STATION IN FRONT OF PARKING STALLS

5. MOUNT CHARGER IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS.

CHARGING STATION PAD DETAIL

NOT TO SCALE

CHARGER

.5

CURB

GUTTER

6"

24"

PARKING STALL 9.5'

12" MIN VDOT STD.

21A AGGREGATE

SECTION

PLAN

FFE=1707.85'

GRADE VARIES

" M

IN

BE

LO

W G

RA

DE

PROVIDE CODE COMPLIANT POWER &

COMM CONDUIT STUBS THROUGH SLAB.

CONTRACTOR TO COORDINATE EXACT

QUANTITY AND LOCATIONS BASED ON FIELD

LAYOUT.

PER PLAN

C-501

SITE DETAILS

KEY PLAN

E

65432

APPROVED BY

CHECKED BY

A

B

C

D

F

REVISIONS

SHEET NO.

TITLE

DRAWN BY

DATE

SCALE

SEAL

REVISIONS

No. DescriptionDATE BY

NORTH

P O

B O

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V

IL

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, V

IR

G

IN

IA

FE

D E

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IT

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TR

U

C

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TR

U

C

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A N

D P

A R

K

IN

G L

O T

B U

IL

D

IN

G

D E

M O

LI

TO

N

Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

1'-6"

1"

6"

LC

4" 2"

8" DIA.

38" DIA.

3 16

TRUNCATED DOME

DETAIL

238" C-C

8" C-C

2' -0

DETECTABLE WARNING

DETAIL

VARIABLE

4' MINIMUM.

PAY LIMITS

TRUNCATED DOME

VIRGINIA DEPARTMENT OF TRANSPORTATION

(ACCESS FOR MOBILITY IMPAIRMENTS)

DETECTABLE WARNING SURFACE

NOTES:

2. THE DETECTABLE WARNING SHALL BE PROVIDED BY TRUNCATED DOMES. TRUNCATED DOMES TO BE STAMPED IF CAST-IN-PLACE OR PRECAST IN TOP SURFACE. THE COLOR OF THE DETECTABLE WARNING SECTION SHALL BE A

1. DETECTABLE WARNING TO BE CLASS A-3 CONCRETE (CLASS A-4 IF PRECAST) WITH SLIP RESISTANT INTEGRAL SURFACE COVERING THE FULL WIDTH OF THE RAMP FLOOR BY 2 FOOT IN LENGTH IN THE DIRECTION OF

PEDESTRIAN TRAVEL OTHER TYPES OF MATERIAL WITH THE TRUNCATED DOME DETECTABLE WARNING MAY BE USED

WITH THE APPROVAL OF THE ENGINEER.

CONTRASTING COLOR WITH THE ADJACENT SURFACES (ADJACENT SURFACES INCLUDES FLARED SIDES). OR FEDERAL

SAFETY YELLOW.

NOTE: HANDRAIL TO BE MADE OF ALUMINUM IN LIEU OF STEEL

AS INDICATED IN VDOT STANDARD DETAIL HR-1.

65432

APPROVED BY

CHECKED BY

A

B

C

D

F

REVISIONS

SHEET NO.

TITLE

DRAWN BY

DATE

SCALE

SEAL

REVISIONS

No. DescriptionDATE BY

NORTH

P O

B O

X

, B

E R

R Y

V

IL

LE

, V

IR

G

IN

IA

FE

D E

R A

L E

M E

R G

E N

C Y

M A

N A

G E

M E

N T

A G

E N

C Y

D E

P A

R

TM

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T O

F H

O M

E

LA

N D

S E

C U

R

IT

Y

IS

S

U E

D F

O R

C O

N S

TR

U

C

TI

O N

C O

N S

TR

U

C

TI

O N

A N

D P

A R

K

IN

G L

O T

B U

IL

D

IN

G

D E

M O

LI

TO

N

Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

C-502

STORM SEWER

DETAILS

NOTES

1. SEE C-501, FOR FLOW CONTROL STRUCTURE DETAIL AND

OUTLET/CONNECTION INVERTS.

2. STORMCAPTURE INVERT = 1685.00'

3. PIPE INVERT IN = 1688.75'

65432

APPROVED BY

CHECKED BY

A

B

C

D

F

REVISIONS

SHEET NO.

TITLE

DRAWN BY

DATE

SCALE

SEAL

REVISIONS

No. DescriptionDATE BY

NORTH

P O

B O

X

, B

E R

R Y

V

IL

LE

, V

IR

G

IN

IA

FE

D E

R A

L E

M E

R G

E N

C Y

M A

N A

G E

M E

N T

A G

E N

C Y

D E

P A

R

TM

E N

T O

F H

O M

E

LA

N D

S E

C U

R

IT

Y

IS

S

U E

D F

O R

C O

N S

TR

U

C

TI

O N

C O

N S

TR

U

C

TI

O N

A N

D P

A R

K

IN

G L

O T

B U

IL

D

IN

G

D E

M O

LI

TO

N

Dewberry Engineers Inc.

8401 ARLINGTON BLVD.

FAIRFAX, VA 22031

703.849.0100 (PHONE)

703.849.0518 (FAX)

KPM

TCC

TCC

3/5/2025

EPS-9620

OF 21

3/5/2025

IFC SUBMISSION3/5/2025

C-503

EROSION &

SEDIMENT

CONTROL

NARRATIVE

1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED

AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF

THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS

TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN

DORMANT FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE

APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.

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.

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.

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.

5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS

DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION.

6. SEDIMENT TRAPS AND SEDIMENT BASINS 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 ACRES.

B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW

FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES 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 THE STRUCTURAL

INTEGRITY OF THE BASIN DURING A TWENTY-FIVE 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.

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 YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH

ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED.

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.

9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER

PROTECTION SHALL BE PROVIDED.

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.

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.

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. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION

OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE

STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS.

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 NONERODIBLE MATERIAL SHALL BE PROVIDED.

14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO

WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET.

15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY

AFTER WORK IN THE WATERCOURSE IS COMPLETED.

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 THIS

CHAPTER.

F. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH.

17. WHEN 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 IS

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.

18. ALL TEMPORARY EROSION AND SEDIMENT 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 VESCP OR VESMP 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.

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 DURATION IN ACCORDANCE WITH

THE FOLLOWING STANDARDS AND CRITERIA. STREAM RESTORATION AND

RELOCATION PROJECTS THAT INCORPORATE NATURAL CHANNEL DESIGN

CONCEPTS ARE NOT MANMADE CHANNELS AND SHALL BE EXEMPT FROM THE FLOW

RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MANMADE

CHANNELS:

A. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL

BE DISCHARGED DIRECTLY INTO 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 IN

QUESTION; OR

2.

A. NATURAL CHANNELS SHALL BE ANALYZED BY THE USE OF A TWO-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 TEN-YEAR STORM TO VERIFY THAT

STORMWATER WILL NOT OVERTOP STORMWATER'S BANKS AND BY THE

USE OF A TWO-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 TEN-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 CHANNEL TO A CONDITION WHERE A TEN-YEAR STORM WILL

NOT OVERTOP THE BANKS AND A TWO-YEAR STORM WILL NOT CAUSE

EROSION TO THE CHANNEL, THE BED, OR THE BANKS;

2. IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE

TEN-YEAR STORM IS CONTAINED WITHIN THE APPURTENANCES; OR

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 TEN-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 VESCP

OR VESMP 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

CHARACTERISTICS AND THE ULTIMATE DEVELOPMENT OF THE SUBJECT

PROJECT.

F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER

DETENTION HE SHALL OBTAIN APPROVAL FROM THE VESCP OR VESMP

AUTHORITY 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 DISSIPATORS 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…