Addendum01_TennisCourts_FINAL_20240209_CompletePackage.pdf

VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY

PROCUREMENT DEPARTMENT

ADDENDUM NO. 1

DATE: February 9, 2024 TO: All Bidders FROM: Tyler Linkenhoker, Capital Contracting Officer TOTAL PAGES: 19 pages (including attachment) PROJECT NAME: Tennis Outdoor Court Design PROJECT MANAGER: Rich Stokes

IFB NUMBER: 656682404

I. CLARIFICATIONS AND ADDITIONAL INFORMATION

1. Working Drawings – Working drawings have been provided by the A/E and are attached Hereto.

II. REQUESTS FOR INFORMATION

NONE

BEAM

ER

W

AY

SOUTHGATE DR.

DUCKPO

ND DR.

WASHINGTON ST.

HUCKLEBERRY TRAIL

J:

\2

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:3

AM

SHEET INDEX

BLACKSBURG, VIRGINIA

570 BEAMER WAY

LEGEND

ABBREVIATIONS

C1 COVER

C2 OVERALL PROJECT MAP

C3 EXISTING CONDITIONS & DEMOLITION PLAN

C4 LAYOUT PLAN

C5 GRADING AND EROSION & SEDIMENT CONTROL PLAN

C6 PROFILE & DETAILS

C7 DRAINAGE AREA MAPS

C8 INLET DRAINAGE AREA MAP

C9 STORMWATER MANAGEMENT PLAN

C10 STORMWATER MANAGEMENT DETAILS

C11 STORMWATER MANAGEMENT DETAILS

C12 EROSION & SEDIMENT CONTROL NOTE & DETAILS

C13 DETAILS

C14 DETAILS

VICINITY MAP

ENGINEER'S NOTES

BALZER AND ASSOCIATES, INC. ASSUMES NO RESPONSIBILITY FOR ADEQUACY OF

PLANS OR FOR INFORMATION ON PLANS UNTIL SUCH PLANS HAVE BEEN

APPROVED BY THE REQUIRED PUBLIC AGENCIES.

ANY WORK COMMENCED ON A PROJECT PRIOR TO PLAN APPROVAL IS AT SOLE

RISK OF THE OWNER/DEVELOPER.

BALZER AND ASSOCIATES, INC. WILL NOT BE RESPONSIBLE FOR THE

CONTRACTORS FAILURE TO CARRY OUT THE WORK IN ACCORDANCE WITH THE

PLANS OR WILL NOT BE RESPONSIBLE FOR ACTS OR OMISSIONS OF THE

CONTRACTOR, SUBCONTRACTORS, OR THEIR AGENTS OR EMPLOYEES, OR OF ANY

OTHER PERSONS PERFORMING PORTIONS OF THE WORK.

VIRGINIA TECH TENNIS

OUTDOOR COURT DESIGN

GENERAL NOTES

C1

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

RESPONSIBLE LAND DISTURBER CERTIFICATION

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

J:

\2

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:3

AM

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

C2

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

LEGEND

ESC NOTE

THE ATHLETIC FIELDS TO THE NORTH AND NORTHWEST

OF THE PROJECT HAVE UNDERGROUND STORMWATER

DRAINAGE AND STORAGE FACILITIES. IT IS CRITICAL

THAT NO SEDIMENT BE DEPOSITED ON THE FIELDS AS IT

MAY ADVERSELY IMPACT DRAINAGE.

X

XX

X

XX X

X

XXXX X X

XX

X

J:

\2

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:4

AM

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

SURVEY DATA

HORIZONTAL AND VERTICAL CONTROL SURVEYS WERE PERFORMED BY DRAPER

ADEN & ASSOCIATES ON DECEMBER 8, 2016, JANUARY 19, 2019, JULY 11, 2019 AND

JUNE 18, 2020 AND BY BALZER & ASSOCIATES ON JUNE 17, 2021. AREAS OUTSIDE

OF SURVEYED BOUNDARY ARE SHOWN FOR INFORMATIONAL PURPOSES ONLY

AND NOT NECESSARILY THE RESULT OF A FIELD SURVEY.

HORIZONTAL DATUM: NAD83 (VIRGINIA SOUTH ZONE)

VERTICAL DATUM: NAVD88

SOURCE OF TOPOGRAPHIC MAPPING:

ON SITE - DRAPER ADEN & ASSOCIATES

OFF-SITE (REGIONAL PLAN) - VIRGINIA TECH GIS

BOUNDARY SURVEY WAS COMPLETED BY: DRAPER ADEN & ASSOCIATES, 2016

BENCHMARK INFORMATION: SEE SHEET C3

STANDARD DEMOLITION NOTES

1. DEMOLITION SHALL INCLUDE, UNLESS OTHERWISE NOTED ON PLAN, THE

REMOVAL OF EXISTING OBJECTS AND IMPROVEMENTS WITHIN THE LIMITS OF

DISTURBANCE, WHETHER INDICATED ON THE DRAWINGS OR NOT, THAT WOULD,

IN THE OPINION OF THE CONTRACTOR, PREVENT OR INTERFERE WITH THE

PROGRESS OR COMPLETION OF THE PROPOSED WORK.

2. PERMITS, FEES AND LICENSES SHALL BE SECURED AND PAID FOR BY THE

CONTRACTOR, INCLUDING DISPOSAL CHARGES AS REQUIRED.

3. WORK SHALL COMPLY WITH THE REQUIREMENTS OF THE GOVERNING

AUTHORITIES IN DEMOLITION OF EXISTING PAVEMENT, CURBS AND GUTTERS,

DRAINAGE STRUCTURES AND UTILITIES AS MAY BE REQUIRED.

4. ALL EXISTING UTILITY SERVICE LINES SHALL BE DISCONNECTED, PLUGGED, OR

CAPPED PER UNIVERSITY OR UTILITY STANDARDS PRIOR TO REMOVAL.

5. CONTRACTOR SHALL SAW-CUT ALL JOINTS WHERE EXISTING CURBING,

PAVEMENT AND SIDEWALK IS TO BE DEMOLISHED AND NEW CONSTRUCTION

JOINS THE EXISTING.

6. CONTRACTOR SHALL COMPLETELY FILL BELOW GRADE AREAS AND VOIDS FROM

DEMOLITION OR REMOVAL OF STRUCTURES (UNDERGROUND FUEL STORAGE

TANK, BASEMENTS, WELLS, ETC.) USING APPROVED SELECT FILL MATERIAL.

7. ALL EXISTING CURBING, CONCRETE SIDEWALK, ENTRANCES, BUILDING

FOUNDATIONS AND TREES AND BRUSH THAT ARE DEMOLISHED SHALL BE

REMOVED FROM THE SITE AND DISPOSED OF BY THE CONTRACTOR. BUILDING

DEBRIS, ETC. SHALL NOT BE USED AS FILL MATERIAL ON THE SITE.

8. CONTRACTOR SHALL INSTALL SAFETY FENCE AROUND PERIMETER OF

CONSTRUCTION AREA PRIOR TO BEGINNING WORK.

9. CONTRACTOR SHALL ENSURE SUFFICIENT AREA IS RESERVED FOR BYPASSING

VEHICULAR TRAFFIC WHEN WORKING WITHIN SHARED ACCESS DRIVES OR

RIGHT-OF-WAY. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL TRAFFIC

CONTROL MEASURES NECESSARY TO DIRECT TRAFFIC SAFELY AND

EFFICIENTLY AROUND THE CONSTRUCTION AREA. ANY ROAD OR LANE

CLOSURES SHOULD BE COORDINATED WITH THE VIRGINIA TECH PROJECT

MANAGER.

10. WHERE INDICATED ON THE DRAWINGS, PAVEMENT MARKINGS SHALL BE

REMOVED BY GRINDING, BLASTING, OR A COMBINATION THEREOF, OR OTHER

METHODS, WITH THE APPROVAL OF THE ENGINEER IN ACCORDANCE WITH VDOT

ROAD AND BRIDGE SPECIFICATION SECTION 512.03 (j). CARE SHALL BE

EXERCISED DURING MARKING REMOVAL NOT TO SCAR, DISCOLOR OR

OTHERWISE DAMAGE THE PAVEMENT SURFACE. OVERPAINTING OR OTHER

METHODS OF COVERING MARKINGS IN LIEU OF REMOVAL SHALL NOT BE

PERMITTED.

11. CONTRACTOR SHALL PROVIDE THE FOLLOWINGS PROTECTIONS AT THE JOB

SITE:

11.1. MAKE ARRANGEMENTS, BEFORE INITIATING DEMOLITION, FOR

RELOCATING, DISCONNECTION, REROUTING, ABANDONING, OR SIMILAR

ACTION AS MAY BE REQUIRED RELATIVE TO UTILITIES AND OTHER

UNDERGROUND PIPING, TO PERMIT WORK TO PROCEED WITHOUT DELAY.

ARRANGEMENTS SHALL BE MADE IN ACCORDANCE WITH REGULATIONS OF

AUTHORITIES OF UTILITIES MENTIONED, SUCH AS OVERHEAD AND

UNDERGROUND POWER AND TELEPHONE LINES AND EQUIPMENT, GAS

PIPING, STORM SEWERS, SANITARY SEWERS, OR WATER PIPING.

CONTRACTOR SHALL NOT USE WATER WHEN IT MAY CREATE HAZARDOUS

OR OBJECTIONABLE CONDITIONS, SUCH AS ICE, FLOODING AND/ OR

POLLUTION.

11.2. ENSURE SAFE PASSAGE OF PERSONS AROUND ALL AREAS OF

DEMOLITION.

11.3. CONDUCT OPERATIONS TO PREVENT DAMAGE TO ADJACENT BUILDINGS,

STRUCTURES, OTHER FACILITIES, OR INJURY TO PERSONS.

11.4. PROMPTLY REPAIR DAMAGES CAUSED TO ADJACENT FACILITIES BY

DEMOLITION OPERATIONS AT NO COST TO THE OWNER.

11.5. MAINTAIN EXISTING UTILITIES INDICATED TO REMAIN, KEEP IN SERVICE,

AND PROTECT AGAINST DAMAGE DURING DEMOLITION OPERATIONS.

PREVENT INTERRUPTION OF EXISTING UTILITIES SERVING OCCUPIED OR

USED FACILITIES, EXCEPT WHEN AUTHORIZED IN WRITING BY

AUTHORITIES HAVING JURISDICTION. PROVIDE TEMPORARY SERVICES

DURING INTERRUPTIONS TO EXISTING UTILITIES AS ACCEPTABLE TO

GOVERNING AUTHORITIES.

11.6. USE WATER SPRINKLING AND OTHER SUITABLE METHODS TO LIMIT DUST

AND DIRT RISING AND SCATTERING IN AIR TO LOWEST PRACTICAL LEVEL.

11.7. COMPLY WITH GOVERNING REGULATIONS PERTAINING TO

ENVIRONMENTAL PROTECTION.

12. OWNER OR CONTRACTOR IS RESPONSIBLE FOR DETERMINING IF ANY

STRUCTURES PROPOSED FOR REMOVAL CONTAIN ANY ENVIRONMENTAL

HAZARDS SUCH AS ASBESTOS. ANY ABATEMENT REQUIRED SHALL BE THE

RESPONSIBILITY OF THE OWNER.

C3

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

LEGEND

SOILS INFORMATION

11C - DUFFIELD-ERNEST COMPLEX, 7 TO15 PERCENT SLOPES

K-FACTOR: 0.28

TEXTURE: SILT LOAM

HYDROLOGIC SOIL GROUP: B

16B - GROSECLOSE AND POPLIMENTO SOILS, 2 TO 7 PERCENT SLOPES

K-FACTOR: 0.32

TEXTURE: LOAM

HYDROLOGIC SOIL GROUP: C

16C - GROSECLOSE AND POPLIMENTO SOILS, 7 TO 15 PERCENT SLOPES

K-FACTOR: 0.32

TEXTURE: LOAM

HYDROLOGIC SOIL GROUP: C

29 - UDORTHENTS AND URBAN LAND

X

CONCRETE NOTE:

CONCRETE SECTIONS SHOWN ARE BASED ON TYPICAL SECTIONS

USED FOR TENNIS COURTS AND BLEACHER PADS. CONTRACTOR

SHALL OBTAIN VERIFICATION FROM THE VIRGINIA TECH ATHLETIC

DEPARTMENT THAT THESE SECTIONS ARE ACCEPTABLE FOR USE IN

THESE AREAS.

J:

\2

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:4

AM

LEGEND

C4

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

STANDARD SITE PLAN NOTES

1. GENERAL CONTRACTOR TO CONFIRM THE LOCATION OF ALL

EXISTING UTILITIES PRIOR TO ANY CONSTRUCTION OF

PROPOSED IMPROVEMENTS.

2. NO CONSTRUCTION/FIELD CHANGES WITHOUT THE APPROVAL

OF THE CONSULTING ENGINEER, OWNER, AND VIRGINIA TECH.

3. ALL UTILITY INFRASTRUCTURE MATERIALS AND INSTALLATION

PROCEDURES SHALL CONFORM TO CURRENT VTDCS MANUAL.

4. G.C. TO ENSURE POSITIVE DRAINAGE AWAY FROM ALL

BUILDINGS.

5. ANY PAVEMENT DISTURBED OR DESTROYED DURING THE

CONSTRUCTION PROCESS SHALL BE REPAIRED/REPLACED AS

NECESSARY TO PRE-CONSTRUCTION CONDITIONS AT NO COST

TO THE OWNER.

6. CONCRETE SURFACES SHALL HAVE A MINIMUM SLOPE OF 1%.

TYPICAL ASPHALT COURT - DETAIL

LIGHTING NOTE:

COURT LIGHTING LOCATIONS, TYPE, AND HEIGHT SHALL BE

COORDINATED WITH THE VIRGINIA TECH ATHLETIC DEPARTMENT

AND THE VIRGINIA TECH/MONTGOMERY REGIONAL AIRPORT

AUTHORITY.

FENCE POST FOUNDATION AT V-NOTCH

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

*OUTLET NOTE:

ALL PROPOSED OUTLET LOCATIONS AND POWER LINES SHOWN

ARE PRELIMINARY AND ARE NOT INTENDED TO REPRESENT FINAL

DESIGN. A FULL ELECTRICAL DESIGN SHALL BE COMPLETED

PRIOR TO INSTALLATION OF ANY ELECTRICAL COMPONENT.

**ACCESSIBLE ROUTE NOTE:

BASED ON THE SURVEY FIELD INFORMATION COLLECTED BY

DRAPER ADEN ASSOCIATES AND PROVIDED TO BALZER &

ASSOCIATES ON 3/17/17, THE EXISTING ACCESSIBLE ROUTE

APPEARS TO MEET REQUIRED TOLERANCES. IF, DURING

CONSTRUCTION, ANY AREAS ARE FOUND TO BE EXCEEDING

ALLOWABLE RUNNING OR CROSS SLOPES, THE PROJECT OWNER

AND ENGINEER SHALL BE NOTIFIED.

**RAMP WIDTH NOTE:

CLEAR SPACE BETWEEN RAILINGS IS 6' BASED ON 2" DIA.

RAILINGS. IF LARGER RAILINGS ARE USED, CONCRETE WIDTH

WILL NEED TO BE EXPANDED IN ORDER TO PROVIDE 6' CLEAR. IN

THIS CASE, PROJECT ENGINEER SHALL BE CONTACTED TO

VERIFY STORMWATER CALCULATIONS.

1 inch = ft.

( IN FEET )

GRAPHIC SCALE

87.10

87.66 87.72

2:1

3:1

2:1

2:1

3:1

2:1 2:1

0.9 9%

1.0 0%

0.9 9%

0.9 9%

1.11%

1.0 2%

1.0 6%

1.0 7%

1.0 6%

1.0 0%

1.0 0%

0.9 9%

1.0 0%

1.0 0%

0.9 7%1.0

0%

0.9 9%

6.2 9%

4.9 0%

86.93

87.03

86.91

87.01

85.90

85.86

85.80

85.90

85.80

85.90

85.86

86.91

87.02 87.01

86.94

85.75

89.17 89.75

88.43

94.12

93.00

94.35

89.35

92.64

86.86

1.0 6%

1.0 7%

4.9 0%

1.2 5%

0.85% 1.88%

1.5 0%

2.93%

4.76%

0.0 0%

4.9 0%

89.45

87.78

92.74

94.02

87.22

1.9 0%

86.42

86.41

86.6686.68

86.15 86.16

85.8085.80 85.80 85.80

85.80 85.80

85.67

85.67 85.8085.67 85.80

85.67 85.80

85.67 85.67

85.67

85.80 85.80

85.80

86.41

87.12 87.27 87.86 87.01

J:

\2

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:5

AM

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

SEQUENCE OF CONSTRUCTION

ESC MAINTENANCE SCHEDULE

STANDARD EROSION & SEDIMENT CONTROL NOTES

LEGEND

C5

ESC NOTE

CONTRACTOR SHALL OWN INSTALLATION AND

MAINTENANCE OF ALL EROSION & SEDIMENT

CONTROL MEASURES SHOWN ON PLANS.

STORM SEWER PROFILE

\2

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:0

AM

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

C6

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

J:

\2

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:1

AM

C7

PLANNERS / ARCHITECTS

LEGEND

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:2

AM

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

PLANNERS / ARCHITECTS

C8

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:2

AM

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

C9

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

OUTLET FLOW CONTROL STRUCTURE (STR 6)

NOTE

ALL STORMWATER MANAGEMENT UNDERDRAIN PIPING SHALL BE

PERFORATED RIGID DOUBLE WALL HDPE (AASHTO CLASS II PERFORATION

PATTERN) OR PERFORATED SCHEDULE 40 PVC (ASTM F758 / AASHTO M278

PERFORATION PATTERN). FLEXIBLE LANDSCAPING PIPING SHALL NOT BE

CONSIDERED AN ALTERATIVE.

NOTE

SHOP DRAWINGS SHALL BE PROVIDED TO THE DESIGN ENGINEER PRIOR

TO CONSTRUCTION OF THE UNDERGROUND SYSTEM. DRAWINGS SHALL

INCLUDE ALL PERTINENT INFORMATION REQUIRED FOR THE INSTALLATION

OF THE STORMWATER MANAGEMENT FACILITIES INCLUDING, BUT NOT

LIMITED TO, MATERIALS AND STRUCTURAL DETAILS FOR THE PIPE END

SECTIONS.

STORMWATER MANAGEMENT FACILITIES MAINTENANCE PLAN

GENERALLY

1. THE OWNER IS RESPONSIBLE FOR PROVIDING OR COORDINATING ALL FACILITY INSPECTIONS AND ANY REQUIRED MAINTENANCE THAT

MAY RESULT FROM SUCH INSPECTIONS.

2. REQUIREMENTS LISTED HERE ARE TO BE TAKEN AS A MINIMUM AND DO NOT REPRESENT THE LIMIT OF RESPONSIBILITY.

3. ANY STANDING WATER PUMPED DURING THE MAINTENANCE OPERATION MUST BE DISPOSED OF PER THE VESCH, 1992 EDITION AND

ANY LOCAL REQUIREMENTS.

REQUIRED ACTION

UNDERGROUND DETENTION FACILITY:

1. EVERY (12) TWELVE MONTHS THE RESPONSIBLE PARTY SHALL COMPLETE AND DOCUMENT A VISUAL INSPECTION OF THE

UNDERGROUND FACILITY AND IT'S COMPONENTS AND MAKE ANY REPAIRS NECESSARY TO AREAS OF FAILURE/CONCERN DISCOVERED

DURING INSPECTION. TYPICAL MAINTENANCE TASKS INCLUDE:

1.1. CLEANOUT OF ANY DEBRIS OR SEDIMENT ACCUMULATED IN THE STRUCTURE THAT REDUCES THE STORAGE VOLUME OR

OTHERWISE HINDERS THE PERFORMANCE OF THE FACILITY.

1.2. VISUAL INSPECTION FOR STRUCTURAL DETERIORATION, SPALLING, OR CRACKING OF THE STRUCTURAL COMPONENTS.

2. THE FLOW CONTROL MANHOLES SHALL BE INSPECTED AFTER EACH RUNOFF PRODUCING STORM EVENT TO CHECK FOR DEBRIS

AND/OR SEDIMENT ACCUMULATION THAT MAY COMPROMISE THE PERFORMANCE OF THE STRUCTURE. SUCH DEBRIS AND SEDIMENTS

SHALL BE REMOVED IMMEDIATELY.

2. WATERTIGHT FITTINGS OR IMPERMEABLE LINERS (AS SPECIFIED ON THE STORMWATER MANAGEMENT PLAN) SHALL BE USED FOR ALL DETENTION FACILITIES AND CONNECTING PIPES WHERE SPECIFIED. INSTALLATION AND MATERIALS SHALL BE IN ACCORDANCE WITH THE VIRGINIA STORMWATER MANAGEMENT HANDBOOK AND/OR THE MANUFACTURER'S SPECIFICATIONS.

3. SHOP DRAWINGS PROVIDED TO THE OWNER/DEVELOPER SHALL IDENTIFY THE SYSTEM COMPONENTS' MATERIAL AND COATINGS (IF APPLICABLE) AND THEIR PROJECTED SERVICE LIFE BASED ON THE ON-SITE SOILS. MATERIALS WITH A PROJECTED SERVICE LIFE OF LESS THAN 50 YEARS ARE NOT RECOMMENDED. ALL END SECTIONS, BULKHEADS, REDUCERS, MANIFOLDS, RISERS, LADDERS, AND ANY OTHER STRUCTURAL COMPONENTS SHALL BE ENGINEERED AND FABRICATED BY THE DETENTION SYSTEM

MANUFACTURER.

4. AS-BUILTS SHALL BE PERFORMED PRIOR TO BACKFILLING AROUND SYSTEM TO BE SURE THE SYSTEM IS INSTALLED CORRECTLY.

ANY REVISIONS SHALL BE MADE IMMEDIATELY TO ENSURE PROPER FUNCTIONING. PROVIDE AS-BUILT STORM FACILITY PLANS TO

VIRGINIA TECH SID PRIOR TO BOND RELEASE.

5. CONFINED SPACE TRAINING AS REQUIRED BY THE OCCUPATIONAL SAFETY & HEALTH ADMINISTRATION (OSHA) SHALL BE REQUIRED

FOR ANY PERSON PERFORMING MAINTENANCE/INSPECTION ACTIVITIES WITHIN THE FACILITY.

6. THE PROPERTY OWNER OR HOMEOWNER'S ASSOCIATION SHALL MAINTAIN RESPONSIBILITY FOR THE ON-SITE STORM WATER

MANAGEMENT FACILITIES.

IMPERMEABLE LINER INSTALLATION NOTES

1. ANY IMPERMEABLE LINER SHALL BE INSTALLED PER THE MANUFACTURER'S SPECIFICATIONS.

2. IF A 30 MIL POLY LINER IS USED, THE DESIGN PROFESSIONAL SHALL BE PROVIDED SUBMITTAL DATA SHOWING

THAT THE LINER MEETS THE MINIMUM THICKNESS REQUIREMENT PRIOR TO INSTALLATION.

3. THE SIDES AND BOTTOM OF THE BASIN EXCAVATION SHOULD BE SMOOTH AND ROCK-FREE WHETHER A POLY-LINER OR CLAY LAYER IS USED. FOR POLY-LINER INSTALLATIONS, IF A GEOTECHNICAL ENGINEER OR OTHER DESIGN PROFESSIONAL IS PROVIDED THE OPPORTUNITY TO VERIFY THAT THE SUBGRADES AND SIDEWALLS ARE FREE OF ROCK, A NON-WOVEN 8oz GEOTEXTILE WILL NOT BE REQUIRED ON THE OUTSIDE OF THE IMPERMEABLE POLY-LINER. OTHERWISE, THE GEOTEXTILE IS REQUIRED. THE MANUFACTURER WILL BE ABLE TO PROVIDE APPROPRIATE DETAILS AND/OR INSTRUCTIONS IF PENETRATIONS TO THE POLY-LINER

SHOULD OCCUR.

4. A NON-WOVEN 8oz GEOTEXTILE SHALL BE PLACED ON THE INSIDE SURFACE OF THE IMPERMEABLE POLY-LINER TO PREVENT

PUNCTURES DURING PLACEMENT OF THE OPEN-GRADED BEDDING STONE AND PIPE.

5. A 12" THICK IMPERMEABLE CLAY LINER CERTIFIED BY A GEOTECHNICAL ENGINEER MAY BE USED INSTEAD OF A 30 MIL POLY-LINER.

IF A CLAY LINER IS USED THE OWNER OR GC SHALL PROVIDE THE DESIGN PROFESSIONAL WITH A

CERTIFICATION FROM A GEOTECHNICAL ENGINEER STATING THAT THE LINER MEETS THE

REQUIREMENTS OF THE VIRGINIA STORMWATER MANAGEMENT HANDBOOK PRIOR TO PLACEMENT OF

STONE BACKFILL. THE LINER SHALL MEET THE REQUIREMENTS OF THE VSMH TABLE 14.4.

STORMWATER STRUCTURES

THE FOLLOWING CRITERIA SHALL APPLY:

1. IF PRECAST STRUCTURES ARE USED FOR THE OUTLET CONTROL STRUCTURE, EACH SECTION OF THE PRECAST STRUCTURE SHALL BE ANCHORED TOGETHER FOR STABILITY AND ANTI-FLOTATION REQUIREMENTS. MANHOLE SECTION JOINTS SHALL BE WATERTIGHT IN ACCORDANCE WITH ASTM C-443. WEEP HOLES SHALL NOT BE PROVIDED. ANY LIFT HOLES SHALL BE SEALED WATERTIGHT. WHERE SPECIFIED, WATERTIGHT RESILIENT CONNECTORS BETWEEN MANHOLE STRUCTURES AND PIPES SHALL BE

IN ACCORDANCE WITH ASTM C-923.

2. PRECAST STRUCTURE SUPPLIER SHALL FURNISH SHOP DRAWINGS FOR OUTLET STRUCTURES TO GC AND DESIGN PROFESSIONAL FOR REVIEW. SEE PLAN VIEW FOR EXACT LOCATIONS OF MANHOLE AND DROP INLET TOPS. LOCATIONS FOR OPENINGS IN THE TOPS OF THE PRECAST BASE/RISER UNITS SHALL BE COORDINATED WITH THE PLAN VIEW TO ENSURE PROPER ALIGNMENT WITH

MANHOLE AND DROP INLET TOPS.

3. ORIFICE OPENING DIMENSIONS ARE CRITICAL ELEMENTS OF THE STRUCTURE AND OFTEN CANNOT BE ACCURATELY CONSTRUCTED AS A FORMED OR SAWCUT CONCRETE HOLE. METAL ORIFICE PLATES ARE RECOMMENDED AND MAY BE

REQUIRED AS A RETROFIT IF CORRECT ORIFICE DIMENSIONS ARE NOT PROVIDED.

4. OPENINGS FOR TRASH GUARDS SHALL BE NO LARGER THAN ONE-HALF THE MINIMUM OPENING DIMENSION AND PROVIDE A TOTAL OPEN AREA GREATER THAN THAT OF THE ORIFICE. TRASH GUARD SHALL BE FABRICATED TO FIT THE SHAPE/DIAMETER OF THE RISER STRUCTURE. FLAT GRATES FOR TRASH RACKS ARE NOT ACCEPTABLE. METAL TRASH RACKS AND HARDWARE

SHALL BE CONSTRUCTED OF GALVANIZED OR STAINLESS STEEL METAL.

REQUIRED ACTION MAINTENANCE OBJECTIVE FREQUENCY OF ACTION

UNDERGROUND STORMWATER DETENTION FACILITY OPERATION & MAINTENANCE

Property Permeability Plasticity Index of Clay Liquid Limit of Clay Clay Particles Passing Clay Compaction

Test Method (or equal)

ASTM D-2434

ASTM D-423 & D-424

ASTM D-2216

ASTM D-422

ASTM D-2216

Specification 1x10 Not less than 15%

-6

Not less than 30% Not less than 30% 95% Std. Proctor

TABLE 14.4 VSMH - Clay Liner Specifications

CM/SEC

NOTE

AT EACH OF THE FOLLOWING STEPS IN THE INSTALLATION PROCESS, THE

CONTRACTOR SHALL CONTACT THE DESIGN ENGINEER AND REQUEST AN

INSPECTION. INSTALLATION SHALL NOT CONTINUE PAST EACH STEP UNTIL

THE DESIGN ENGINEER HAS CONFIRMED THAT IT IS ACCEPTABLE TO DO

SO.

1. UPON REACHING FINAL GRADE OF THE TRENCH, THE ELEVATIONS OF

THE BOTTOM OF THE TRENCH SHALL BE CHECKED FOR COMPLIANCE

WITH THE PLAN.

2. ONCE THE STONE BASE HAS BEEN INSTALLED, THE ELEVATION OF

THE TOP OF STONE BASE SHALL BE CHECKED FOR COMPLIANCE

WITH THE PLAN.

3. ONCE THE PIPES HAVE BEEN INSTALLED, A FIELD INSPECTION SHALL

BE CONDUCTED PRIOR TO BACKFILLING.

SWM NOTE:

THE STORMWATER MANAGEMENT SYSTEM HAS BEEN DESIGNED

WITH CONSIDERATION OF FUTURE DEVELOPMENT, INCLUDING

ADDITIONAL COURTS AND A BUILDING ADDITION. ANY FUTURE

DEVELOPMENT WITHIN THE LIMITS OF DISTURBANCE SHOWN ON

SHEET C2 WILL BE MITIGATED BY THE STORMWATER SYSTEM

DESIGNED AS A PART OF THESE PLANS.

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:3

AM

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

C10

PLANNERS / ARCHITECTS

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:4

AM

C11

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:5

AM

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

C12

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:5

AM

C13

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

Ô

Ô

Ô

Ô

Ô

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

RAMP WITH HANDRAIL - DETAIL

SEE SITE PLAN FOR RAMP LENGTH

SEE CONCRETE SECTION DETAIL BELOW

N.T.S.

NOTE: CONTRACTOR SHALL PROVIDE NO GREATER THAN 12"

VERTICAL DROP OFF WITHIN 10 INCHES HORIZONTALLY OF

RAMP LANDINGS OR EXTEND EDGE PROTECTION FOR

LANDINGS IN ACCORDANCE WITH ANSI 117.1 SECTION 405.9.

CONCRETE SIDEWALK - DETAIL

94.35 94.35

94.3594.35

93.17

92.51

RAMP SECTION A PROFILE

RAMP SECTION B PROFILE

C14

PLANNERS / ARCHITECTS

ENGINEERS / SURVEYORS

4th WORKING

DRAWING

SUBMITTAL

August 24, 2023

J:

\2

1\

\2 4\

.0

VI

R

G

IN

IA

T

EC

H

TE

N N

IS

C

O U

R T

R

EA

LI

G

N M

EN

T\

C

IV

IL

\d w g\

C O

N

ST

R U

C

TI

O N

W

D S ub m itt al

PH

AS

ED

.d w g

PL

O

TT

ED

: 9

/1 3/

1:

:0

AM

23_8_24_Arch_ 4th working drawing