ATTACHMENT 1

LAND DEVELOPMENT SERVICES

May 21, 2019

STAFF REPORT PREPARED BY PERMITTING AND CODE ADMINISTRATION

PROPOSED COUNTY CODE AMENDMENT

PROPOSED PFM AMENDMENT

PROPOSED ZONING AMENDMENT

APPEAL OF DECISION

WAIVER REQUEST

Proposed Amendments to the Public Facilities Manual (PFM) Regarding Phase 2

of the “PFM Flex Project,” a Fairfax First Initiative to Improve the Speed,

Consistency and Predictability of the County’s Land Development Review

Process.

PUBLIC HEARING DATES

Authorization to Advertise: May 21, 2019

Planning Commission Hearing: June 12, 2019 at 7:30 p.m.

Board of Supervisors Hearing: July 16, 2019 at 4:00 p.m.

Prepared By: Danielle Badra, Management Analyst I

(703) 324-7180

Don Lacquement, Engineer IV

(703) 324-1670

Site Code Research & Development Branch,

Land Development Services (LDS)

STAFF REPORT

STAFF RECOMMENDATION

Staff recommends that the Board of Supervisors adopt the proposed PFM amendments. Edits

within each amendment are shown by underlining (added text), strikethrough (deleted text),

double underlining (relocated text), and double-strikethrough (text being relocated).

DISCUSSION

On December 4, 2018, the Board adopted amendments to the PFM as a result of Phase 1 of the

“PFM Flex Project,” a Fairfax First Initiative to improve speed, consistency, and predictability of

the County’s land development review process. The County has fully implemented the PFM Flex

Project Phase 1 amendments. The amendment process for Phase 2 is underway.

This proposed amendment to modernize street light fixtures to light emitting diodes (LED) and

allow an additional pipe material for storm sewers is part of Phase 2 of the PFM Flex Project,

which focuses on technical issues that require additional research and vetting with stakeholders.

These amendments are on a fast-track for implementation. Additional PFM Flex Project

amendments will be presented at public hearings starting in Spring 2020.

LED Street Lights:

In order to further the objectives of the Environmental Vision approved by the Board on June 20,

2017, the Board developed an Operational Energy Strategy (OES) which was adopted on

July 10, 2018. It provides goals, targets, and actions in ten focus areas including “energy use and

efficiency” and “innovative energy solutions.” Using more energy efficient LED street light

fixtures is one way the County can work toward those OES goals. Currently, the PFM requires

High Pressure Sodium streetlights in new developments. This proposed amendment will require

all new development to use LED street light fixtures, which will reduce energy usage and

equivalent carbon dioxide emissions. LED lights also have a longer lifecycle, which will reduce

the County’s lifecycle operating costs. The new fixtures will also be smart-city-capable, with the

ability to add dimming, automatic outage reporting, or other smart-city techniques, as they

become available.

Polypropylene Storm Sewer Pipe:

Virginia Department of Transportation (VDOT) added the use of polypropylene pipe into its

standards and specifications in 2016 for storm sewer applications. This proposed amendment

closely aligns with VDOT standards and specifications for this product, while also incorporating

recommendations from the manufacturer, the American Association of State Highway and

Transportation Officials, and the American Society for Testing and Materials.

PROPOSED AMENDMENTS

1. Chapter 2: General Subdivision and Site Plan Information

The proposed amendment to Chapter 2 (General Subdivision and Site Plan Information)

updates the current inspection requirements for high density polyethylene storm sewer pipe

in §2-0402.2E to require the same inspection standards for polypropylene storm sewer pipe.

2. Chapter 6: Storm Drainage

The proposed amendment to Chapter 6 (Storm Drainage) will add polypropylene pipe to the

list of acceptable pipe and culvert materials for storm drain construction and will provide

technical specifications for the material itself and the methods used to design and install it.

3. Chapter 7: Streets, Street Lights, Parking and Driveways

The proposed amendment to Chapter 7 (Streets, Street Lights, Parking and Driveways) will

update §7-0800 to require LED street light fixtures be used for proposed light fixtures and for

the replacement of existing High Pressure Sodium, Metal Halide and Mercury Vapor light

fixtures where existing streetlights are being used to meet lighting requirements for a

proposed development. The PFM plates 23-7 through 30-7 are being updated to match

amendment text.

ATTACHED DOCUMENTS

Attachment A – Proposed LED Street Lights and Polypropylene Pipe Amendments

Attachment A

1

Proposed Amendments

to

the Fairfax County Public Facilities Manual

Light Emitting Diode (LED) Street Lights 1 2

Amend Chapter 7 (Streets, Street Lights, Parking and Driveways), §7-0802 (General 3

Requirements), by revising §7-0802.1A, to read as follows: 4 5

7-0802.1A Subdivisions with an Average Lot Size Under Less Than 18,000 square feet. 6

7

8

Amend Chapter 7 (Streets, Street Lights, Parking and Driveways), §7-0803 (Authorization 9

and Procedures), by revising §7-0803.1, to read as follows: 10 11

7-0803.1 Fairfax County is served by two electric utility companies: Dominion Energy 12

Virginia Power (Dominion) and the Northern Virginia Electric Cooperative 13

(NOVEC). Depending on which electric service area the project is located in, the 14

following authorization and procedures apply. 15

16

17

Amend Chapter 7 (Streets, Street Lights, Parking and Driveways), by revising §7-0804 18

(Standards and Criteria), to read as follows: 19 20

7-0804 Standards and Criteria 21 22

7-0804.1 Luminaire Style 23

24

A. There are three standard lighting fixture styles and poles available for use. The 25

selection of the style of fixture and pole combination for a particular 26

development is to be made in relation to the area classification (see Table 7.5) 27

and roadway classification (see Table 7.6). These lighting fixtures are to be set 28

in accordance with the current VDOT Road Design Manual, Section A-2, 29

Clear Zone Guidelines for fixed objects and must meet the VDOT clear zone 30

requirements or pass current crash test requirements for obstacles within street 31

clear zones. The available lighting fixtures are as follows: 32

33

1. Dominion Shoebox Cobrahead or NOVEC Cobrahead (RF-1 and RF-2): 34

This is a cut-off fixture which is bracket mounted to a concrete (RF-2) or 35

wood pole (RF-1) (see Plates 28-7 and 29-7). These two fixtures can be 36

used on all roadways and area classifications, where the clear zone is less 37

than 20 feet. When street light poles are set in-line with an existing power 38

pole line, the light pole is to be wood (RF-1). When the light pole is to be 39

set in an area where the electrical distribution is underground, the poles are 40

Attachment A

2

to be concrete (RF-2). When the street light poles are set in front of an 41

existing pole line, either RF-1 and RF-2 (preferred) can be utilized used. 42

43

2. Colonial Cut-off (RF-3): This is a top pole mounted coach fixture on a 44

black fiberglass pole that is set in the utility strip (see Plate 30-7). 45

46

3. Interstate Expressway (IT EX): This special fixture is only used on primary 47

roadways where the VDOT’s clear zone is greater than 20 feet. This fixture 48

can be installed on wood poles (IT-1)(EX-1) or concrete (IT-2)(EX-2) (see 49

Plate 29A-7). 50

51

B. Local Roadways (ADT 0-2000) in Residential, Single Family Detached 52

Dwelling, classification areas: The preferred luminaire is the Colonial Cut-off 53

(RF-3). This fixture is limited to curb-and-gutter roadways with less than 3,000 54

VPD and for underground electrical wiring. As an alternative, the RF-1 and 55

RF-2 can also be utilized used. For local roadway with commercial or 56

industrial classifications, use RF-1 or RF-2 luminaires. 57

58

C. Collector and Arterial roadways in Commercial/Industrial and Residential 59

classification areas: Luminaires to be used are the RF-1 or RF-2. Where the 60

clear zone for fixed objects is greater than 20 feet, the luminaires to be used are 61

the EX-1 and EX-2. 62

63

1. Local Roadways (ADT 2001-5500) in Residential classification areas: The 64

luminaires to be used are the RF-1 and RF-2. 65

66

2. Collector and Arterial roadways in Commercial and Residential 67

classification areas: Luminaires to be used are the RF-1 or RF-2. 68

69

3. Collector and Arterial roadways in Commercial and Residential 70

classification areas: Where the clear zone for fixed object is greater than 20 71

feet, the luminaires to be used are the IT-1 and IT-2. 72

73

7-0804.2 Street Light Source 74

75

A. The standard light source for all street lights is the Light Emitting Diode (LED) 76

with Smart City capability High Pressure Sodium (HPS) lamps. The use of 77

LED HPS street lights must conform to the standards as set forth in Tables 7.7, 78

7.8 and 7.8 9, unless otherwise approved by the Director. 79

80

B. Any use of existing Mercury Vapor (MV), High Pressure Sodium (HPS), or 81

Metal Halide (MH) street lights along existing state road frontage must be 82

converted upgraded to LED. These new fixtures must meet the requirements of 83

the American Nation Standards Institute/Illuminating Engineering Society’s of 84

North America (ANSI/IESNA), American National Standard Recommended 85

Attachment A

3

Practice for Design and Maintenance of Roadway and Parking Facility 86

Lighting (ANSI/IESNA RP-8-18 14, or latest). 87

88

7-0804.3 Light Level Requirements. Illumination levels are determined based on area and road 89

classification as described in Tables 7.7, 7.8, 7.8 9 and 7.9 10. See Tables 7.5 and 7.6 90

for definitions of area and road classifications. Due to the variations in the geometrics 91

and traffic counts for existing State roadways, the design of street lights at these 92

locations is very site specific. The initial design of these street lights must conform to 93

the generalized standards as set forth in Table 7.7. Special coordination with DPWES 94

during the preparation of this street light design may be required to address specific 95

site conditions. The design of these street lights must be shown on the first submission 96

construction plans. This street light design may be subject to revision after review by 97

DPWES. DPWES may also adjust approved street lighting layouts along existing 98

State roadways. DPWES will explain to the developer the reasons why the approved 99

lighting layout is adjusted. These modifications will be made only to coordinate with 100

the location of existing or proposed street lights adjacent to the site or to meet current 101

ANSI/IESNA RP-8-18 Standard Practice for Roadway Lighting. 102

103

A. Residential Areas 104

105

1. Street lights must be provided along roadways within new residential 106

subdivisions in accordance with § 7-0802.1. Luminaire size and maximum 107

allowable spacing and mounting height must conform to the standards set 108

forth in Tables 7.7, 7.8 and 7.8 9. 109

110

2. A minimum of three street lights must be provided at all subdivision 111

entrances as set forth in Tables 7.7 and 7.8. 112

113

B. Commercial/Industrial Areas 114

115

1. Street lights must be provided along all proposed and existing roadways 116

that are or will be included in the State Roadway System within new 117

commercial and industrial subdivisions. Luminaire size and maximum 118

allowable spacing must conform to the standards set forth in Tables 7.7 and 119

7.8. 120

121

2. A minimum of three street lights must be provided at all subdivision 122

entrances as set forth in Tables 7.7 and 7.8. 123

124

7-0804.4 Pole Placement and Bracket Length 125

126

A. All standard roadway fixtures must be installed in such a manner as to 127

maintain a minimum roadway overhang of 2 feet. All pole locations must 128

conform to the current edition of the VDOT Road Design Manual, Section A-2 129

Clear Zone Guidelines and must meet the VDOT clear zone requirements or 130

pass current crash test requirements for obstacles within street clear zones. 131

Attachment A

4

132

1. Residential Areas. Poles located at intersections must be installed as close as 133

possible to, but outside, the radius of the intersection. Poles located along 134

roadways between intersections must be installed with a 1-foot offset to side 135

lot property boundaries. All pole placements and bracket lengths must 136

conform to the standards set forth in Tables 7.7 and 7.8. 137

138

2. Commercial/Industrial Areas. Poles located at intersections must be 139

installed as close as possible to, but outside, the radius of the intersection. 140

Poles located along roadways between intersections must be installed, if 141

possible, with a 1-foot offset to side lot property boundaries. All pole 142

placements and bracket lengths must conform to the standards set forth in 143

Tables 7.7 and 7.8. 144

145

B. Standard colonial style roadway lighting fixtures must utilize black fiberglass 146

poles. These poles must should be installed 2 feet behind the face of curb as set 147

forth in Table 7.9. 148

149

C. If a development has frontage on an existing or proposed public service road, 150

street lights must be located to light the main roadway in accordance with adopted 151

illumination standards. 152

153

7-0804.5 Luminaire Mounting Height – All RF-1 and RF-2 luminaires must be installed 154

with mounting heights as specified in Tables 7.7 and 7.8. All RF-3 luminaires 155

must be installed at a height of 14 feet. 156

157

7-0804.6 Street light information to be shown on development plans: 158

159

A. The standard roadway fixture for use on ditch section roadways is the RF-1 160

(Plate 28-7). However, the RF-1 could can be substituted with the RF-2 161

(concrete pole with underground wiring) if desired. The RF-1 locations must 162

be designated on the plan in accordance with the symbol shown in Plate 28-7 163

or 29-7. Each RF-1 location must be dimensioned from edge-of-pavement to 164

face-of-pole. Each RF-1 location must be labeled as to luminaire size, bracket 165

length and mounting height as follows: RF-1-luminaire size-bracket 166

length(mounting height), RF-1-(luminaire size)-(bracket length)(mounting 167

height), e.g., RF-1-145-12(35) RF-1-23-12(35) refers to a 23,000 145 watt 168

lumen luminaire with a 12-foot feet bracket length at a mounting height of 35 169

feet. 170

171

B. Standard roadway fixture for use on curb-and-gutter roadways (Plate 29-7). The 172

RF-2 locations must be designated on the plan with the symbol shown in 173

Plate 29-7. Each RF-2 location must be labeled as to luminaire size, bracket length 174

and mounting height as follows: RF-2-luminaire size-bracket length(mounting 175

height) RF-2-(luminaire size)-(bracket length)(mounting height), e.g., RF-2-71-176

Attachment A

5

10(35) RF-2-14-10(30) refers to a 14,000 71 watt lumen luminaire with a 10-foot 177

feet bracket length at a mounting height of 30 35 feet. 178

179

C. Standard colonial style roadway lighting fixture (Plate 30-7). The RF-3 180

locations must be designated on the plan in accordance with the symbol shown 181

in Plate 30-7. Each RF-3 location must be labeled as to luminaire size as 182

follows: RF-3-luminaire size RF-3-(luminaire size), e.g., RF-3-72 RF-3-5 183

refers to a 5,000 72 watt-lumen luminaire. 184

185

D. Special Expressway lighting fixture (Plate 29A-7). The EX-1 and EX-2 186

locations must be designated on the plan in accordance with the symbol shown 187

in Plate 29A-7. Each EX-1 and EX-2 location must be labeled as to luminaire 188

size, bracket length, mounting height and tilt as follows: EX-1-luminaire size-189

bracket length(mounting height)(tilt), e.g., EX-1-145-1(35)(0) refers to a 145 190

watt luminaire with a 1-foot bracket length at a mounting height of 35 feet with 191

a tilt of zero. 192

193

E. All RF-1, RF-2, and RF-3, EX-1, and EX-2 street lights must be plotted 194

accurately to scale on the plans with respect to pole location and, where 195

applicable, bracket length. 196

197

7-0804.7 For design examples, see Plates 23-7 through 27-7. 198

Table 7.5 Area Classification

Residential – All land uses as described in Article 3 of the Zoning Ordinance.

Commercial/Industrial – All land uses as described in Articles 4 and 5 of the Zoning Ordinance.

Planned Development – All land uses as described in Article 6 of the Zoning Ordinance.

Table 7.6 Road Classification

Local – Roadways used primarily for direct access to residential, commercial, or industrial or other abutting

property. These roadways do not carry through traffic.

Collector – Roadways used for serving through traffic between arterial and local roadways. These roadways are

used mainly for traffic movement within residential, commercial and industrial areas.

Arterial – Roadways used as a principal network for through traffic flow. These roadways connect areas of

principal traffic generation and important rural highways entering population centers such as cities.

Attachment A

6

7-0804.8 7 Lighting Levels Tables 199

200

A. Lighting Levels for Existing Streets Standard Roadway Fixture (RF-1 and RF-2) 201

Luminaire Size and Maximum Spacing: 202

203

Table 7.7 Lighting Levels For Proposed and Existing Streets:

Standard Roadway Fixture (RF-1 and RF-2)(Light Emitting Diode)(High Pressure

Sodium Vapor)

Area

Classification

Roadway

Section

Type

ft.

Roadway

Width

ft.

Lamp

Luminaire

Size

Lumens

Watts

Maximum

Spacing

ft.

Mounting

Height

ft.

Notes

Residential

Curb &

Gutter

30

36

44

8,000 54

8,000 54

14,000 71

175

155 165

160 200

30

30

30 35

1,3,4

1,3,4

1,3,4

Ditch

Section

24

36

48

8,000 37

8,000 54

14,000 71

165 170

160 165

155 200

25

30

30 35

1,3,4

1,3,4

1,3,4

Industrial/

Commercial

Curb &

Gutter

30

36

44

14,000 105

23,000 105

23,000 145

165 220

220 215

225 220

30 35

35

35

1,3,4

1,3,4

2,3,4

Ditch

Section

24

36

48

14,000 105

14,000 105

23,000 145

185 220

155 215

185 220

30 35

30 35

35

1,3,4

1,3,4

1,3,4

NOTES: 1/ All luminaires to be installed on one side of the roadway.

2/ Luminaires are to be set symmetrically on both sides of the roadway. When the development only fronts one side

of the road, street lights only need to be provided on that side at the spacing specified.

3/ The standard colonial style roadway lighting fixture may be used at these locations. See Table 7.9 for additional

details.

3 4/ Luminaires bracket lengths are to be sized as to provide a 2-ft. roadway overhang. The maximum bracket length

for standard concrete poles is 12 ft. Longer brackets, up to 20 ft. (in 2-ft. increments), are available for wood poles

(down guiding is required) and for special concrete poles. Pole locations are to be determined based on current

VDOT Road Design Manual, Section A-2 Clear Zone Guidelines.

4/ The light source must have a Correlated Color Temperature (CCT) of 3,000K and Type III Distribution, unless

otherwise approved by the Director.

Attachment A

7

B. Lighting Levels for Proposed Curb and Gutter Streets Standard Roadway Fixture 204

(Plate 29-7) Luminaire Size and Maximum Spacing: 205

206

Table 7.8 Lighting Levels For Proposed Curb & Gutter Streets:

Standard Roadway Fixture (RF-2)(High Pressure Sodium Vapor)

Area

Classification

Roadway

Classification ADT

Lamp Size

Lumens

Maximum

Spacing

ft.

Mounting

Height

ft.

Notes

Residential Local

0-250 8,000 180 30 1,3,4

251-400 8,000 180 30 1,3,4

401-1000 8,000 160 30 1,3,4

1001-2000 8,000 160 25 1,3,4

2001-4000 8,000 160 30 1,4

4001-5500 8,000 155 30 1,4

Collector 4001-5500 14,000 160 30 2,4

Industrial/

Commercial

Local

0-250 14,000 170 30 1,4

251-400 14,000 175 30 1,4

401-1000 14,000 160 30 1,4

1001-2000 23,000 210 35 1,4

2001-4000 23,000 215 35 1,4

4001-5500 23,000 210 35 1,4

Collector 4001-5500 23,000 220 35 2,4

NOTES: 1/ Luminaires are to be set on one side of the roadway.

2/ Luminaires are to be set symmetrically on both side of the roadway.

3/ The standard colonial style roadway lighting fixture may be used at these locations. See Table 7.9 for additional

details.

4/ Luminaires bracket lengths are to be sized as to provide a 2-ft. roadway overhang. The maximum bracket length

for standard concrete poles is 12 ft. Longer brackets, up to 20 ft. (in 2-ft. increments), are available for wood poles

(down guiding is required) and for special concrete poles. Pole locations are to be determined based on current

VDOT Road Design Manual, Section A-2-Clear Zone Guidelines

Attachment A

8

C. Lighting levels for proposed curb and gutter streets alternate security lighting fixture (RF-207

3) luminaire size and maximum spacing. 208

209

Table 7.8 9 Lighting Levels For Proposed Curb & Gutter Streets:

Alternate Security Fixtures (RF-3)(Light Emitting Diode)(High Pressure Sodium Vapor)

Area

Classification

Roadway

Classification ADT

Lamp

Luminaire

Size

Lumens

Watts

Maximum

Spacing

ft.

Mounting

Height

ft.

Notes

Residential,

Single Family

Detached

Local

0-400 5,000 72 160 14 1,2

401-2000 8,000 160 14 1,2

NOTES: 1/ Measured from face of pole to face of curb. 2/ Poles to be placed on one side of the roadway.

The light source must have a Correlated Color Temperature (CCT) of 3,000K and Type III Distribution, unless

otherwise approved by the Director.

210

Table 7.9 10 Quick Street Light Requirement Selection

Plan

Classification

Three Street

Lights at All

Entrances

Street Lights

along all

Interior

Roadways

Street Lights

Along All

Abutting

Roadways

Street Lights

Required

at Private

Roadways

Site Plan N/A N/A YES NO

Subdivision

Plans

Above Average

Lot Size is 18,000

ft2 or Greater

YES YES NO N/A NO

Below Average

Lot Size is Less

Than 18,000 ft2

YES NO YES N/A NO

Industrial or

Commercial YES YES N/A NO

Public Improvements Plans N/A YES YES NO

Attachment A

9

Amend Chapter 7 (Streets, Street Lights, Parking, and Driveways), §7-0805 (Nonstandard 211

Street Lighting), by revising §7-0805.5B, to read as follows: 212 213

7-0805.5B Lighting computations for the proposed nonstandard lighting system must be 214

provided by the developer to DPWES. These computations must show that the 215

proposed nonstandard lighting system meets the current IESNA Standard Practice 216

for Roadway Lighting (ANSI/IESNA RP-8-18 00 or latest version), and that it 217

conforms to the guidelines of the International Dark-Sky Association (IDA) 218

concerning glare and light trespass. These computations must be sealed by a 219

Lighting Certified professional by the National Council on Qualifications for the 220

Lighting Professional (NCQLP), or by a State licensed professional engineer. 221

222

223

Amend Chapter 7 (Streets, Street Lights, Parking, and Driveways), by striking §7-0806 224

(Design Examples), updating and relocating the design examples to Plates 23-7 to 27-7. 225 226

7-0806 Design Examples 227 228

7-0806.1 Typical Lighting Layout Plate 23-7. This is a proposed hypothetical residential 229

subdivision containing lots averaging less than 18,000 square feet in area. 230

231

A. According to § 7-0802.1A, street lighting is required at all entrances to the 232

subdivision along all roads to be included in the State roadway system. A 233

minimum of three lights are required at the entrances to the subdivision. This 234

existing State roadway is a curb-and-gutter roadway with a 44-foot pavement 235

width. Therefore, the standard RF-2 must be utilized in accordance with 236

§ 7-0804.1. According to Table 7.7, 14,000 lumen street lights at a maximum 237

spacing of 160 feet are required with a mounting height of 30 feet. 238

239

B. Since roads with ADTs between 0 and 250 meet all requirements for use of 240

the standard colonial style roadway lighting fixture, (§ 7-0804.1) the 241

developer may use the standard RF-3. According to Table 7.9, for a local 242

residential road with ADTs between 0 and 250, a luminaire size of 5,000 243

lumens is required at a spacing of 160 feet. The poles must be placed 2 feet 244

behind the curb as specified on Plate 30-7 and along the property line 245

between the lots. 246

247

C. Roads with ADTs between 1001 and 2000 also meet all requirements for use 248

of the RF-3 fixture. According to Table 7.9, a luminaire size of 8,000 lumens is 249

required at a maximum spacing of 160 feet. As stated above, pole placement 250

must be 2 feet behind the face-of-curb and along the property line between the 251

lots. 252

253

7-0806.2 Typical Lighting Layout Plate 24-7. This is a proposed hypothetical residential 254

subdivision containing lots averaging 18,000 square feet and greater. According to 255

§ 7-0802.1B(2), a minimum of three street lights are required at the proposed 256

Attachment A

10

subdivision entrance along the existing State road. This existing State road is a 24-257

foot wide ditch section road. According to Table 7.7, an 8,000 lumen RF-1 light 258

must be utilized at a spacing of 165 feet with a mounting height of 25 feet. 259

260

7-0806.3 Typical Lighting Layout Plate 25-7. This is a proposed hypothetical industrial 261

subdivision with roads with ADTs between 2001 and 4000. According to 262

§ 7-0802.2, street lighting is required at the entrance to the subdivision and along 263

the proposed State road within the subdivision. The existing State road is a 44-foot 264

wide curb and gutter section road. According to § 7-0804.1, the standard RF-2 265

fixture must be utilized. As shown in Table 7.7, 23,000 lumen street lights are 266

required at a spacing of 225 feet at a mounting height of 35 feet. According to 267

§ 7-0804.3B(1), a standard roadway fixture must be utilized to light the interior 268

road of this subdivision. Since this proposed road will be a curb and gutter section 269

road and located in an industrial area, the standard RF-2 fixture must be used 270

(Plate 29-7). The proposed road is a local industrial road with an ADT between 271

2001 and 4000 and therefore, according to Table 7.8, requires a 23,000-lumen 272

street light at a spacing of 215 feet with poles placed 9 feet behind the face of curb 273

and a 12-feet bracket length and mounting height of 35 feet. 274

275

7-0806.4 Typical Lighting Layout Plate 26-7. This is a proposed hypothetical commercial 276

development: According to § 7-0802.3, street lights must be installed along all 277

existing State roads providing frontage to the site. The existing State roads are 278

curb and gutter section roads 36 feet wide. Therefore, according to Table 7.7, a 279

23,000-lumen street light at a spacing of 220 with a mounting height of 35 feet is 280

required. 281

282

7-0806.5 Typical Lighting Layout Plate 27-7. This is a proposed hypothetical planned 283

development. Street lights must be provided according to § 7-0802.4. The 284

proposed collector street is a road with an ADT between 4001 and 5500. 285

According to § 7-0804.1A, the standard roadway fixture must be utilized. As 286

shown on Table 7.8 for a residential collector road, 14,000 lumen street lights are 287

required with poles placed 9.5 feet from the face of the curb and 12-feet bracket 288

lengths, at a spacing of 160 feet along the road at a mounting height of 30 feet. 289

290

A. The other State roads proposed under this development must be lighted in 291

accordance with these requirements and the referenced examples. 292

Attachment A

11

Amend List of Tables and List of Plates, to read as follows: 293 294

LIST OF TABLES 295

296

Table 7.5 Area Classification ......................................................................................................... 5 297

Table 7.6 Road Classification ........................................................................................................ 5 298

Table 7.7 Lighting Levels For Proposed and Existing Streets: Standard Roadway Fixture 299

(RF-1 and RF-2)(Light Emitting Diode)(High Pressure Sodium Vapor) .................................. 6 300

Table 7.8 Lighting Levels For Proposed Curb & Gutter Streets: Standard Roadway Fixture 301

(RF-2)(High Pressure Sodium Vapor) .......................................................................................... 7 302

Table 7.8 9 Lighting Levels For Proposed Curb & Gutter Streets: Alternate Security 303

Fixtures (RF-3)(Light Emitting Diode)(High Pressure Sodium Vapor) .................................... 8 304

Table 7.9 10 Quick Street Light Requirement Selection ............................................................. 8 305

306

307

LIST OF PLATES 308 309

Standard

Designation

Plate No. Description Section

TLL-1 23-7 Typical Lighting Layout No. 1 (Residential

Subdivision) Design Example: Residential

Subdivision

7-0802.1A(3),

7-0804.7,

7-0806.1

TLL-2 24-7 Typical Lighting Layout No. 2 (Residential

Subdivision) Design Example: Residential

Subdivision

7-0802.1B(3),

7-0804.7,

7-0806.2

TLL-3 25-7 Typical Lighting Layout No. 3 (Commercial/Industrial

Subdivision) Design Example: Industrial Subdivision

7-0802.2C,

7-0804.7,

7-0806.3

TLL-4 26-7 Typical Lighting Layout No. 4 (Site Plans) Design

Example: Commercial Subdivision

7-0802.3B,

7-0804.7,

7-0806.4

TLL-5 27-7 Typical Lighting Layout No. 5 (Planned

Development) Design Example: Planned

Development

7-0802.4D,

7-0804.7, 7-

0806.5

RF-1 28-7 Standard Roadway Fixture – Shoebox Cobrahead

Style for Ditch Section Roads

7-0804.1A(1),

7-0804.6A

RF-2 29-7 Standard Roadway Fixture – Shoebox Cobrahead

Style for Curb and Gutter Roads

7-0804.1A(1),

7-0804.6A, 7-

0804.6B, 7-

0804.7B, 7-

0806.3

IT-2 EX 29A-7 Special Interstate Expressway Roadway Fixture for

Major Roadways

7-0804.1A(3)

RF-3 30-7 Colonial Style Fixture for Subdivision Roadways with

Curb and Gutter

7-0804.1A(2),

7-0804.6C, 7-

0806.1B

Attachment A

12

Amend Plates 23-7 to 27-7 to relocate the Design Examples from §7-0806 into the 310

appropriate Plates, and Plates 28-7 to 30-7 to match amendment text, as shown below. 311

Attachment A

13

Attachment A

14

Attachment A

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Attachment A

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Attachment A

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Attachment A

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Attachment A

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Attachment A

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Attachment A

21

Attachment A

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Attachment A

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Attachment A

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Attachment A

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Attachment A

26

Polypropylene Pipe 312 313

Amend Chapter 6 (Storm Drainage), §6-0902 (Storm Sewer Pipe), by adding §6-0902.2O 314

(Polypropylene Pipe), to read as follows: 315 316

6-0902.2O Polypropylene Pipe 317

318 1. Polypropylene pipe must conform to the requirements of AASHTO M 330 and 319

must be double-wall pipe (Type S) for nominal diameters of 12 inches through 30 320

inches, and must be triple-wall pipe (Type D) for nominal diameters of 36 inches 321

through 60 inches. The use of polypropylene pipe less than 12” or greater than 322

60” is not permitted. Suppliers of polypropylene pipe for stormwater applications 323

must be on VDOT Materials Division Approved List meeting the requirements of 324

VDOT’s PP Corrugated Pipe Products Quality Assurance Program. 325

326

2. Joints between pipe segments and connections to manholes and other pipe 327

structures must meet VDOT requirements and, in accordance with VDOT Road 328

and Bridge Specifications, Section 232.02(m) and IIM-LD-254.2, joints must meet 329

the requirements of AASHTO PP-63-09-14. Joint systems must be on the VDOT 330

Materials Division Approved List for pipe joints. Rubber gaskets must conform to 331

ASTM F 477. 332

333

3. Installations must be in accordance with ASTM D 2321 “Standard Practice for 334

Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-335

Flow Applications,” the manufacturer’s recommendations, and VDOT 336

requirements, whichever are more stringent. Pipe bedding, embedment, and 337

backfill must conform to the standards set forth in VDOT Road and Bridge 338

Specifications, Section 302.03(a)(2), and PFM Plate 61-6. 339

340

4. A minimum cover of 2’ or ½ pipe diameter, whichever is greater, must be 341

provided in accordance with VDOT requirements. The engineer must determine 342

whether construction and maintenance traffic will traverse the pipe trench once 343

backfilled and must provide minimum cover in accordance with VDOT Standards, 344

AASHTO’s Load and Resistance Factor Design Bridge Construction 345

Specifications, Section 30 (Thermoplastic Culverts), or the manufacturer’s 346

recommendations, whichever is greater. 347

348

5. Filter fabric must surround the aggregate fill material when there is a high-349

water table or where the movement of groundwater can cause the migration of 350

fines from the soil envelope (into the class I embedment material). The filter fabric 351

must overlap by a minimum of 2 feet. Use non-woven geotextile fabric with AOS 352

of 70-100 US Sieve or 0.22 mm-0.15 mm as determined by ASTM D 4751 and a 353

trapezoidal tear strength of 45 LB as determined by ASTM D 4533. Geotextile 354

fabric may not be exposed to direct sunlight for more than 24 hours before 355

installation. 356

357

Attachment A

27

6. Adequate cover must be provided to prevent flotation in accordance with the 358

manufacturer’s recommendations. 359

360

361

Amend Chapter 6 (Storm Drainage), §6-0903 (Pipe and Culvert Materials), by revising 362

Table 6.8, to read as follows: 363 364

Table 6.8 Pipe And Culvert Materials – Roughness Coefficients

Material Manning “n”

Plain Concrete Culvert Pipe (PCCP)2 .013

Non-Reinforced Concrete Sewer Pipe (NRCSP)2 .013

Reinforced Concrete Pipe (RCP) .013

Vitrified Clay Pipe, Extra Strength (VCPX) .013

Cast Iron Pipe (CIP) .013

Corrugated Plain Metal Pipe (CMP)1 .024

25% Paved .021

50% Paved .018

100% Paved .013

High-Density Polyethylene Pipe (HDPE) .012

Polypropylene Pipe (PP) .013

1Corrugated metal pipe is approved for use at residential driveway entrances, temporary installations, and

privately maintained detention systems. Except for the above uses, this type of pipe may be used only when

approved by the Director. In approving the use of CMP, the Director may apply certain conditions to provide for

inspection and testing in accordance with AASHTO’s standards, including deflection testing.

2Plain Concrete Culvert Pipe (PCCP) and Non-Reinforced Concrete Sewer Pipe (NRCSP) must conform to the

VDOT Road and Bridge Specifications. Pipe sizes 12 in. through 24 in. are permitted, in accordance with

§ 6-0902.2.

Attachment A

28

Amend Chapter 6 (Storm Drainage), by revising Plate 61-6, to read as follows: 365 366

Attachment A

29

Amend Chapter 2 (General Subdivision and Site Plan Information), §2-0402 (Inspections), 367

by revising §2-0402.2E(1) through 2-0402.2E(4), to read as follows: 368 369

2-0402.2E Storm sewer pipes must undergo visual and video inspections, installation 370

deflection testing and pipe evaluations by the developer to ensure proper 371

performance in accordance with the following: 372

373

1. Visual Inspection for High Density Polyethylene (HDPE) and 374

Polypropylene (PP) Pipe: During the installation process, the developer 375

must provide for full-time visual inspection of high density polyethylene 376

HDPE and PP storm sewer pipe. Installation and inspection of bedding and 377

backfill materials, as well as and their placement and compaction, must 378

meet the PFM requirements and Section 30.7.1 (Visual Inspection) of the 379

American Association of State and Highway Transportation Official’s 380

(AASHTO’s) Load and Resistance Factor Design, Bridge Construction 381

Specifications, respectively. Visual inspection must be performed by an 382

independent inspection and testing agency or design professional licensed 383

in the Commonwealth of Virginia. (In accordance with standard practice, 384

the actual testing and inspections may be performed by an individual under 385

responsible charge of the licensed professional.) 386

387

2. Video Inspection for all pipes: No sooner than 30 days after completion of 388

installation and final fill and pavement or alternative section, a video 389

record must be performed by the developer on all storm sewer pipes unless 390

deemed unnecessary by the Site Development and Inspections Division 391

(County inspector), LDS. 392

393

3. HDPE and PP Installation Deflection Testing: No sooner than 30 days after 394

completion of installation and final fill and pavement or alternative 395

pavement section, HDPE and PP pipe must be evaluated for deflection 396

using a mandrel or other device that can physically verify the dimension of 397

the pipe as approved by the Director. The pipe must be evaluated by the 398

developer to determine whether the internal diameter of the barrel has been 399

reduced more than 5 percent. A minimum of 10 percent of the total number 400

of pipe runs representing at least 10 percent of the total length of installed 401

pipe must be tested for deflection, in addition to all areas that were 402

identified in the visual inspection as having deflection. Deflection testing 403

must be conducted by the Developer in the presence of a County inspector, 404

or by an independent inspection and testing agency or design professional 405

licensed in the Commonwealth of Virginia. Testing must be conducted in 406

the locations specified by the County inspector. 407

408

4. Pipe Evaluations for concrete, and HDPE, and PP: Pipe inspection must be 409

in accordance with Sections 27.6 (Field Inspection) and 30.5.6.2 30.7.2 410

(Installation Deflection) of AASHTO’s Load and Resistance Factor 411

Design, Bridge Construction Specifications as determined by the Director. 412

Attachment A

30

For instances where cracks are wider than 0.01 inches for concrete pipe, 413

and where pipe deflection exceeds 5 percent of the inside diameter of 414

HDPE or PP pipe, an evaluation must be conducted by the developer’s 415

design professional licensed in the Commonwealth of Virginia and 416

submitted to the County for review and approval considering the severity 417

of the deflection (HDPE or PP), structural integrity, environmental 418

conditions, and the design life of the pipe. Repairs, replacement and 419

remediation must be noted on the inspection report and made in a manner 420

acceptable to the Director. Copies of inspection and mandrel test results, 421

and video record that depict construction and installation of pipes in 422

compliance with PFM standards must be provided to the County inspector 423

for review and record within two weeks of the time the video was taken. 424

The video recording must be provided in a format acceptable to the 425

Director. The independent inspection and testing agency or design 426

professional licensed in the Commonwealth of Virginia must certify that 427

the required testing and inspections have been completed and construction 428

complies with the approved plans, VDOT specifications and standards of 429

the PFM. 430

431