Z2023137 BOS REPORT_PART3.PDF

Maricopa County — Formal (2024-05-22)

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YELLOW BELL
SOLAR
©
C3.4
SUBSTATION
DETAILS
SUBSTATION PLAN VIEW
NORTH

YELLOW BELL
SOLAR
©
03
02
03
02
02
03
C3.5
TYPICAL BERM DETAIL
TYPICAL RETENTION BASIN DETAIL
TYPICAL TRACKER ROWS
TYPICAL TRACKER AND FOUNDATION DETAIL
TYPICAL TRACKER RACK EAST/WEST SIDE ELEVATION DETAIL
TYPICAL TRACKER ROWS
TYPICAL TRACKER AND FOUNDATION DETAIL
TYPICAL TRACKER RACK EAST/WEST SIDE ELEVATION DETAIL
TYPICAL DIVERSION SWALE DETAIL
1
TYPICAL RETENTION BASIN DETAIL
TYPICAL DIVERSION SWALE DETAIL
04
05
TYPICAL BERM DETAIL
06
TYPICAL TRACKER ROWS
TYPICAL TRACKER AND FOUNDATION DETAIL
1
TYPICAL TRACKER RACK EAST/WEST SIDE ELEVATION DETAIL
DRAINAGE AND
TRACKER DETAILS

kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
  
 
1st Submittal - 10/31/2023 
2nd Submittal – 02/26/2024 
YELLOW BELL SOLAR 
CASE #: Z2023137                                                                            
REQUEST: Zone Change with Overlay, from RU-43 & RU-190 to  
IND-2 IUPD, and Plan of Development on Approximately +/-802.55 
Acres of ASLD Land 
NARRATIVE REPORT FOR

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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
  
TABLE OF CONTENTS 
NARRATIVE REPORT FOR .............................................................................................................................. 1 
1. 
PURPOSE OF REQUEST .......................................................................................................................... 3 
2. 
DESCRIPTION OF PROPOSAL ................................................................................................................ 4 
2.1 Site Summary Information: ...................................................................................................................... 4 
2.2 Proposed Uses Summary: ....................................................................................................................... 4 
Hours/Days of Operation: ........................................................................................................................... 4 
Number of Employees: ............................................................................................................................... 4 
Description/Location of Buildings: ............................................................................................................... 4 
Color Palette: .............................................................................................................................................. 5 
Sign Details: ................................................................................................................................................ 5 
Screening Wall/Fence Details and Location: .............................................................................................. 5 
Security Lighting ....................................................................................................................................... 5 
3. 
RELATIONSHIP TO SURROUNDING PROPERTIES .............................................................................. 6 
Surrounding Adjacent General Land Descriptions ..................................................................................... 6 
Existing Surrounding/Regional Solar & Utility Land Use Projects .............................................................. 7 
Surrounding Adjacent Parcel Descriptions (Zoning and Land Use) ........................................................... 7 
4. 
LOCATION AND ACCESSIBILITY ................................................................ Error! Bookmark not defined. 
Location: ..................................................................................................................................................... 8 
Access: ....................................................................................................................................................... 8 
5. 
CIRCULATION SYSTEM ........................................................................................................................... 8 
Off-site Circulation (Access) ....................................................................................................................... 8 
On-site Circulation ...................................................................................................................................... 8 
Parking and Loading ................................................................................................................................... 9 
6. 
DEVELOPMENT SCHEDULE .................................................................................................................. 10 
7. 
COMMUNITY FACILITIES AND SERVICES ........................................................................................... 10 
8. 
PUBLIC UTILITIES AND SERVICES ...................................................................................................... 10 
Tables 
1. Industrial Unit Plan of Development ………………………………………………………………...…....….10

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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
1. PURPOSE OF REQUEST 
RWE Solar Development, LLC, (RWE) on behalf of Arizona State Land Department (ASLD) is requesting 
approval, from Maricopa County Planning and Development Department, of a Zone Change with Overlay 
(rezone) from RU-43 and RU-190 to IND-2 IUPD Zone along with a Plan of Development for the Yellow Bell 
Solar Project, a proposed industrial-scale solar energy generation and battery energy storage system. As seen 
in Figure 1 – Vicinity Map, the site is located approximately 2 miles northeast of central Gila Bend, west of State 
Route 85, in unincorporated Maricopa County, Arizona. The Project location was chosen based on the favorable 
resources available for PV solar facilities in southwestern Maricopa County. These resources include large, flat 
areas with compatible or existing land use designations within the site area and proximity to existing electrical 
and transmission infrastructure.  
The overall development is +/-2,004.48 acres; the subject +/-802.55 acres (the Project) are in unincorporated 
Maricopa County and are on Arizona State Land Department (ASLD) lands. The remaining +/-1,201.93 acres 
of the Project are contiguous to the ASLD land and within the Town of Gila Bend on privately owned land. The 
+/-802.55 acres, a part of this application, was recently approved by the Board of Supervisors on December 8, 
2021, for a Major Comprehensive Plan Amendment (Case #: CPA2021010) that changed the land use 
designation in the Maricopa County SR85 Corridor Area Plan from Large Lot Residential and Community Retail 
Center Area to Utilities Land Use to allow for the development of a utility-scale solar electric generating 
project(s). Consistent with this approval, this proposal meets the overall intent of the Maricopa County 
Comprehensive Plan Vision 2030 by providing a future need in renewable energy, which has been identified as 
a strategic priority, that benefits the region and the county as a whole. The non ASLD portion of the Yellow Bell 
Solar Project within the Town of Gila Bend will be rezoned as part of a separate application with the Town.   
 
 
 
 
 
 
 
 
 
 
 
 
 
FIGURE 1 – VICINITY MAP

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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
2. DESCRIPTION OF PROPOSAL 
2.1 Site Summary Information: 
RWE is proposing the development of a PV solar generation facility with battery energy storage, and associated 
facilities. In general, the Project could occur on all the property identified except for obvious restrictions such 
as floodways, setbacks, and easements or other rights-of-way. The Project will include approximately +/-
160,000 solar modules mounted on single axis trackers, inverters to convert direct current into alternating 
current, transformers to increase the voltage of the electricity generated, a 200 MW photovoltaic (PV) generating 
facility and battery energy storage system (BESS) with associated infrastructure. The Project will interconnect 
to the transmission grid at the Arizona Public Service (APS) Panda Substation located to the southwest. On-
site overhead electrical structures would be a 150-foot maximum.  
2.2 Proposed Uses Summary: 
Hours/Days of Operation:  
The site will be in operation and/or production 24 hours a day, seven (7) days per week. Solar generation 
activities would be limited to daytime (daylight) hours which will vary seasonally but would generally range from 
around 5:00 AM to 9:00 PM during summer months when daylight hours are longest. Energy storge activities 
and operations will be continuous and energy transmission into the power grid will occur on demand as needed 
throughout the daytime and nighttime hours. 
Number of Employees: 
The Project is anticipated to be developed in one phase and will generate up to 300 jobs in the construction, 
contracting, administrative, and project management fields during the construction and project implementation.  
Operation of the site will employ 5-10 permanent full-time employees daily. In addition to providing in state 
construction jobs and long-term technical careers, local projects like Yellow Bell Solar will help contribute to the 
regional economy by providing tax revenue and by using local engineering and development contractors in 
Maricopa County.  
Description/Location of Buildings: 
Electrical and telecommunication equipment may be contained within housing units or cabinets that are a 
manufactured protective outer covering for the internal equipment. Self-enclosed units include small 
telecommunications equipment cabinets and BESS equipment cabinets/shelters located near the BESS system 
components. BESS components will be housed in prefabricated steel containers located within the identified 
BESS area in the southwest portion of the overall site as depicted on the Plan of Development (POD).  
Operations & maintenance (O&M) building(s) will be provided for the Yellow Bell Solar Project located near the 
BESS area and substation. Site sewer for this building(s) will be septic and the water will be either hauled and 
provided via above ground tank or via well. These Project components are located outside of the county portion 
of the overall site area. Although, in the event they are provided within this application area they will be subject 
to the standards of the IUPD and/or the Maricopa County Zoning Ordinance as applicable. 
Smaller communication and electrical equipment are located among the PV array fields as depicted on the 
POD.

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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
Color Palette: 
All materials coatings, finishes, and colors, where practicable, will be selected to blend facility components to 
the natural setting. Selection of color palettes for electrical cabinets and PV solar equipment will be selected 
from factory specifications and options provided by the respective manufacturers. Color palette selection will 
conform to generally accepted and adopted industry standards for PV solar equipment and support structures. 
Final color selections will seek to minimize heat absorption and glare and blend with surrounding natural 
environment so far as is practicable. 
Sign Details:  
Signage will be limited to site identification signs, OSHA approved safety signage, and security signage in 
accordance with Chapter 14 of the Maricopa County Zoning Ordinance. 
Screening Wall/Fence Details and Location: 
The property is surrounded mostly by vacant and agricultural lands with utility infrastructure located to the 
southwest and northeast. To ensure proper site security, the site perimeter will be enclosed with chain link fence 
(6 feet in height) with gates where needed along the perimeter of the Project. Fencing section elevation details 
have been provided on the POD which depict typical fencing types and proposed opaque screening. One (1) 
foot of barbed wire strands will be incorporated atop 6-foot fencing for additional security. Barbed wire will not 
be placed on perimeter fencing adjacent to existing residential properties. 
As necessary, enhanced screening will be required adjacent to existing residential properties. Screening 
against these boundaries will include opaque screening in the form of vinyl slats to create visual opacity to 
screen the internal facility components and operations from public roadways and adjacent residential views. 
Currently no residential properties are in the area that would require this type of screening. Proposed opaque 
fencing may be combined with berming to enhance mitigation of visual impacts. Enhanced screening will be 
provided around the BESS and Substation to mitigate visual impacts to surrounding views. 
Security Lighting 
Security lighting will be limited to motion activated lighting associated with the BESS and Substation and other 
security sensitive areas such as entry gates, and parking areas, as shown on the Plan of Development. All 
lighting installed will be directed downward and into the site, in compliance with Maricopa County Zoning 
Ordinance Article 1112, to ensure lighting will not be cast onto neighboring properties. Lighting required for 
safety operations during nighttime operational or maintenance activities will be provided by the associated 
staff/employee personnel.  
 
 
 
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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
3. RELATIONSHIP TO SURROUNDING PROPERTIES 
  
Surrounding Adjacent General Land Descriptions 
Direction
Zoning 
SR 85 Area Plan Land Use Designation 
Current Use  
North 
RU-190 / SFOZ 
Industrial Employment Center 
Agricultural/Solar Utility 
East 
AG / RU-190 / RU-43
Community Retail & Large Lot Res. 
Vacant 
South 
AG 
Industrial Employment Center 
Vacant 
West 
AG / I-3 
Industrial Employment Center 
Agricultural/Vacant/Utility 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FIGURE 2 – SR85 AREA PLAN LAND USE MAP

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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
The Yellow Bell Solar Project was subject to a previous CPA approval and is assigned a Utilities Land Use 
designation in the Maricopa County SR85 Corridor Area Plan for the proposal to construct, operate, and 
maintain an industrial-scale solar energy generation and battery energy storage system. Additionally, the 
proposed land use will build upon the “Solar Capital of the World” slogan discussed in the Gila Bend General 
Plan and furthered by the Gila Bend Solar Field Overlay Zone (SFOZ), proposed for the remaining Gila Bend 
portion of the site, which was implemented to promote employment and identifies this area as a solar corridor 
with primary access to the Gila River Power Station. Given this, the proposed solar use is appropriate and 
compatible with other similar approved and implemented solar projects within the region. Associated facilities 
within this area include power stations, PV solar generation facilities, utility corridors, transmission lines and 
utility substations. The other nearby projects are as follows: 
Existing Surrounding/Regional Solar & Utility Land Use Projects 
Project 
Location (Township/Range) 
Gila River Power Station 
T5SR4W 
APS Panda Substation 
T5SR4W 
APS Paloma Solar Site 
T5SR4W 
APS Cotton Center Solar Site 
T4SR4W 
APS Gila Bend Solar Site 
T5SR5W 
Atlantica Solana Generating Station 
T6SR7W 
Arizona Solar One Solar Site 
T6SR7W 
 
The surrounding area has a few sparsely distributed residential land uses. The rest of the surrounding area is 
characterized by active and passive agricultural land uses, Bureau of Land Management (BLM) and Arizona 
State Land Department (ASLD) owned and managed lands, electric generation facilities, solar powered electric 
generation facilities, and native desert lands. The predominant surrounding private land uses within the area 
are agriculture and utilities. 
 
The proposed Zone Change with Overlay and Plan of Development is consistent with similar approved and 
implemented utility and solar projects around the Town of Gila Bend region. Associated facilities within this 
region include approved CPA’s for Utility (solar) land uses, PV solar generation facilities, utility corridors, 
transmission lines and a utility substations. The specific adjacent land uses are described below. 
Surrounding Adjacent Parcel Descriptions (Zoning and Land Use) 
Location
Parcel Number 
Owner 
Land Use 
Incorporated 
In Gila Bend 
Zoning 
North 
402-03-009B & C Hettinga Revocable Trust 
Agricultural/Vacant
Y 
I-3 
North 
402-03-013F 
Arizona State Of 
Agricultural/Vacant
Y 
AG 
North 
402-03-013G 
Gila 1130 LLC 
Agricultural/Vacant
Y 
AG 
West 
402-04-018C & 
402-05-008B 
SRP/Tucson Electric Power 
Co/UNS Electric Inc 
Agricultural/Vacant
Y 
AG 
West 
402-05-008C & -
402-05-028C 
Getzwiller Joe B/Theresa D 
Living Trust 
Agricultural/Vacant
Y 
AG 
West 
402-39-003C, D, 
& -004A, B, C 
Largo 258 LLC 
Agricultural/Vacant
Y 
I-1 
South & 
East 
N/A 
Arizona State Of 
Agricultural/Vacant
N 
RU-43/190 
& IND-1 
East 
402-39-005 
Arizona State Of 
Agricultural/Vacant
N 
RU-43

Page 8 
kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
4. LOCATION AND ACCESSIBILITY 
Location: 
The Project is north of Interstate 8 (I-8) directly west of State Route 85 and approximately four miles east of the 
intersection of Hwy 85 and I-8. The surrounding area contains existing utility infrastructure such as a natural 
gas-fired electrical generating facility (the Gila River Power Station), industrial-scale PV solar facilities, the 
Arizona Public Service (APS) Panda Substation, electrical transmission lines, a canal, the Gila Bend Municipal 
Airport, as well as isolated rural residences and agricultural fields.  
Access: 
Access to the Project would be provided via existing roads. The majority of the site would be accessible via Old 
U.S. Highway 80, which bifurcates the site, and other local roads. RWE will likely need to develop short, internal 
access roads to portions of the site for internal circulation. These internal roads will be gravel or compacted dirt 
roads. Any proposed road construction needed to access the Project would be constructed and paid for by 
RWE, in coordination with ADOT and MCDOT as necessary, and would not require public expenditures. 
There is an approximately 40-acre parcel of Bureau of Land Management (BLM) administered land located 
within the Project boundary, but it is not included as part of the Project. RWE has been in communication with 
BLM and BLM has no specific concerns regarding the proposed development. Access to the BLM property will 
be maintained following construction. 
5. CIRCULATION SYSTEM 
Off-site Circulation (Access) 
The Project site can be accessed from the north via the State Route 85 and Old U.S. Hwy 80, the east via AZ-
238/Maricopa Road, southeast via I-8 from exit 119/South Butterfield Trail interchange to connect to State 
Route 85 and Old U.S. Hwy 80 and the southwest through central Gila Bend and S 307th Ave/Watermelon Rd 
to Old U.S. Hwy 80. There are several smaller, existing roads, both named and unnamed, near the Project site, 
which may be used and improved for construction and ongoing operations of the Project. Site access will be 
identified in the Plan of Development. Final access locations will be determined in accordance with access 
management policies and permitting requirements of Maricopa County. Additionally, it is understood that 
Maricopa County Department of Transportation (MCDOT) may require dedication or preservation of right-of-
ways as a condition of approval. 
 
The Project would have minimal effects on traffic. There would be minimal increased traffic during the relatively 
short construction period due to the delivery of equipment/supplies and the commuting of the construction 
workforce, but there would be no notable increase in traffic during the operation and maintenance of the Project. 
On-site Circulation  
Internal circulation is planned via a network of private maintenance and service drive aisles to provide vehicular 
access to the solar arrays, associated equipment, BESS, and substation facilities. There will be multiple access 
points for occasional maintenance vehicles and a perimeter chain link security fence and gates. Existing roads 
will be utilized as much as possible instead of creating new roadways. Construction and maintenance of the 
drives will conform to applicable requirements of the Maricopa County Air Quality Control Department.

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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
Parking and Loading 
Parking and loading will be conveniently provided next to the proposed O&M buildings located on the Gila Bend 
portion of the Project. As mentioned, if any facilities are provided within this application area, in the future, 
spaces will be provided subject to the standards of the IUPD and/or the Maricopa County Zoning Ordinance as 
applicable. During operations maintenance parking, loading, and temporary maintenance staging will occur 
within a designated area within the substation/BESS Yard area. Loading during maintenance activities in the 
solar field will occur on private 20-foot (typical) improved roadways among the solar arrays and BESS Yard as 
shown on the Plan of Development. 
FIGURE 3 – DRIVEWAY LOCATIONS 
Proposed site access driveway locations:

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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
6. DEVELOPMENT SCHEDULE 
Project construction is expected to occur in one phase of construction starting as soon as Q3 2024 with 
construction lasting approximately 18 months.  
7. COMMUNITY FACILITIES AND SERVICES 
The Project is located within the community service district boundaries: 
 
Gila Bend Unified School District #24 
 
Paloma School District #94 
 
The Project is not anticipated to generate any adverse impacts to the listed school districts. 
8. PUBLIC UTILITIES AND SERVICES 
Utility service(s) to the site will be provided by the following providers. If necessary, septic facilities will be 
provided for sewer and water is expected be hauled to the site during construction and operation or obtained 
from new or existing wells on-site. Drinking water for employees will be individually provided. Permanent 
restrooms may be provided with future O&M facilities although temporary facilities will be provided for 
maintenance activities as needed.  
UTILITY/SERVICE 
AGENCY/PROVIDER 
Water 
(N/A) Hauled/well 
Sewer 
(N/A) Sanitary sewer provided via accessible portable 
restroom facility as needed for maintenance activities. In 
the event that a future O&M building is built and/or 
permanent employees are present on the site sewer to 
be septic. 
Electric Service  
Arizona Public Service 
Fire Protection (including EMS and Ambulance) 
Gila Bend Fire Department/Emergency Medical Services/ 
Buckeye Valley Fire District 
Police Protection 
Maricopa County Sheriff Office 
Refuse (Waste Management) 
Waste Management 
Telephone 
Century Link / Cox Phone Service 
Irrigation 
(N/A) 
 
 
 
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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
TABLE 1: INDUSTRIAL UNIT PLAN OF DEVELOPMENT 
YELLOW BELL SOLAR - IUPD MODIFICATIONS TO IND-2 DEVELOPMENT STANDARDS 
STANDARD 
CATAGORY 
BASE IND-2 ZONING 
DISTRICT STANDARD
PROPOSED IND-2 
IUPD ZONING 
DISTRICT STANDARD
JUSTIFICATION 
MAX. HEIGHT 
40' 
40' 
  
MIN. FRONT 
YARD
10'-25' 
10'* 
ALL YARD SETBACKS AR EREQUESTED 
TO BE 10’ FROM PROPERTY LINE FOR 
CONSISTENCY. 10’ SETBACKS WILL 
ALLOW FOR THE MOST EFFICIENT USE 
OF SITE AREA AND WILL MAXIMIZE 
ENERGY GENERATION. NEIGHBORING 
PROPERTY IS ANTICIPATED TO REMAIN 
AS FARMLAND OR BE DEVELOPED FOR 
SIMILAR PROJECTS. 
MIN. SIDE YARD 3'-10' 
10’* 
MIN. REAR 
YARD
25' 
10’* 
MIN. STREET 
SIDE YARD 
0’-10’ 
10’* 
LANDSCAPING 
ARTICLE 901.4.1: ALL 
PROPERTIES 
ABUTTING A PUBLIC 
STREET SHALL HAVE 
AN OPEN SETBACK 
AREA WHICH SHALL 
BE LANDSCAPED 
EXTENDING FOR 
THE FULL WIDTH OF 
THE PROPERTY 
NO LANDSCAPE 
STRIP REQUIRED 
INSTALLING A LANDSCAPING STRIP ON 
THE SITE ALONG ALL ROAD FRONTAGES 
WOULD BE COST PROHIBITIVE, IMPACT 
THE EFFECTIVNESS OF SOLAR PANEL 
OPERATION, THE EXISTING NATURAL 
VEGETATION IS NEARLY NON-EXISTENT 
SO THE ADDITIONAL LANDSCAPE WOULD 
LOOK OUT OF PLACE, AND WOULD 
LOWER THE OVERALL ENERGY 
GENERATING CAPACITY OF THE SITE. 
MIN. LOT AREA 6,000 SQ. FT. 
6,000 SQ. FT. 
  
MIN. LOT WIDTH 60' 
60' 
  
MAX. LOT 
COVERAGE
60% MAXIMUM** 
60% MAXIMUM** 
 
PARKING 
REGULATIONS 
ONE PAVED SPACE 
PER 600 SQ. FT. OF 
FLOOR AREA (5% 
SHALL BE ADA 
SPACES) 
NONE REQUIRED 
WITH A MARICOPA 
COUNTY AIR 
QUALITY CONTROL 
APPROVED DUST 
CONTROL PLAN 
THE APPLICANT PLANS NO PERMANENT 
PARKING SPACES.  NO OCCUPIED 
BUILDINGS WILL BE CONSTRUCTED NOR 
WILL THERE BE ANY FULL-TIME 
EMPLOYEES ON-SITE. WORKERS, WHEN 
ON-SITE, WILL BE IN THE SOLAR FIELD 
WITH PARKING AREAS ON THE 20-FT ALL 
WEATHER (PRIVATE) ACCESS ROADS OR 
AT THE DESIGNATED PARKING AREA AT 
THE SUBSTATION AND BESS YARD. 
PARKING IS NOT REQUIRED DURING 
OPERATION. THE FACITLITY WILL BE 
UNMANNED DURING OPERATIONS 
EXCEPT FOR TEMPORARY SYSTEM OR 
FACILITY MAINTENANCE. IF ANY 
FACILITIES ARE PROVIDED IN THE 
FUTURE, ADA SPACES WILL BE 
PROVIDED PER ARTICLE 1102.1.5.

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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
LOADING & 
UNLOADING 
ONE LOADING AND 
UNLOADING SPACE 
FOR EACH 10,000 
SQ.FT. OF FLOOR 
AREA, OR FRACTION 
THEREOF, DEVOTED 
TO SUCH USE IN THE 
BUILDING 
NONE REQUIRED 
LOADING AND UNLOADING SPACES WILL 
NOT BE REQUIRED FOR THE SITE AS NO 
OCCUPIED STRUCTURES ARE 
ANTICIPATED AT THE FACILITY, NO FULL-
TIME EMPLOYEES OR MANNED PROJECT 
BUILDINGS WILL BE LOCATED ON SITE 
OR ON PUBLIC ROADS, AND THERE 
WOULD BE NO ROUTINE DELIVERIES OR 
SHIPMENTS. A ±1.98 ACRE PARKING AND 
LOADING AREA IS DESIGNATED AT THE 
SUBSTATION AND BESS YARD. 
SIGHT 
VISIBILITY 
TRIANGLES 
NO OBSTRUCTIONS 
OVER 2' IN HEIGHT 
WITHIN 25'X25' SVTS 
NO OBSTRUCTIONS 
OVER 2’ IN HEIGHT 
WITHIN 25’X25’ SVTS
 
ARTICLE 902.91 
ALL USES EXCEPT 
FOR PARKING, 
LOADING, 
UNLOADING OR 
STORAGE SHALL BE 
CONDUCTED WITHIN 
A COMPLETELY 
ENCLOSED 
BUILDING 
ALL UTILITY USES 
PERMITTED 
OUTDOORS 
THE OPERATING USES OF THE SITE 
INCLUDE ENERGY GENERATION AND 
STORAGE, THROUGH THE USE OF 
SOLAR PV PANELS. THE USE CANNOT BE 
ACHIEVED WITHIN ENCLOSED 
STRUCTURES; THEREFORE, ARRAYS 
WILL BE LOCATED OUTSIDE OF 
ENCLOSED BUILDINGS, 
SITE 
ENCLOSURE 
AND 
SCREENING 
6' CMU WALL 
ADJACENT TO 
RURAL AND 
RESIDENTIAL 
ZONING 
BOUNDARIES AND 
FOR OUTDOOR USE 
OF AN INDUTRIAL 
NATURE. BARBED 
WIRE FENCING 
MATERIALS UNDER 
8’ IS PROHIBITED. 
CHAIN-LINK 
FENCING AND 
GATES SHALL BE 
ALLOWED ON THE 
PERIMETER OF THE 
PROJECT. ONE (1) 
FOOT OF BARBED 
WIRE STRANDS 
WILL BE 
INCORPORATED 
ATOP 6-FOOT 
FENCING FOR 
ADDITIONAL 
SECURITY AND 
ALLOW BARBED 
WIRE FENCING 
MATERIALS UNDER 
8’ IN HEIGHT, 
EXCEPT IF NEXT TO 
EXISTING 
RESIDENCES.
AS REQUIRED TO ENSURE PUBLIC 
SAFETY REQUIRED BY APPLICABLE 
ELECTRICAL SAFETY REGULATIONS AND 
PROVIDE FOR THE SECURITY OF THIS 
INFRASTRUCTURE PROJECT, THE 
APPLICANT WILL INSTALL CHAIN-LINK 
FENCING (WITH GATES WHERE NEEDED 
ALONG THE PERIMETER OF THE 
PROJECT). THE APPLICANT PROPOSES 
TO USE CHAIN LINK FOR THE GATES 
ALSO, WHICH WILL BE CONSISTENT 
WITH OTHER ADJACENT AND NEARBY 
ENERGY GENERATION PROJECTS.

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1001 West Southern Avenue Suite 131, Mesa, AZ 85210 
480 207 2666 
 
MAX ELECTRIC 
TRANSMISSION 
LINE HEIGHT 
120' 
150’ 
A NEW GEN-TIE ROUTE IS REQUIRED 
FOR THIS PROJECT AND WHILE THE 
MAJORITY OF IT IS OUTSIDE THIS 
ZONING BOUNDARY THERE IS STILL 
IMPACT TO THE PROJECT SITE WITH THE 
CONNECTION TO THE SUBSTATION. 
UTILITY POLE HEIGHTS UP TO 150 FEET 
ARE REQUESTED BECAUSE UTILITY 
STRUCTURES 120 FEET OR LESS IN 
HEIGHT MAY BE INFEASIBLE DUE TO 
FINAL ELECTRICAL DESIGN 
CONSIDERATIONS AND MAY IMPACT THE 
SUBJECT ROW/PROPERTIES MORE, 
REQUIRING LESS SPACING AND MORE 
POLES. THE APPLICANT’S CURRENT 
PRELIMINARY, CONCEPTUAL DESIGNS 
INDICATE THAT HIGHVOLTAGE DEAD-
END STRUCTURES UP TO 150 FEET IN 
HEIGHT MAY BE REQUIRED, 
CONSISTENT WITH SURROUNDING 500 
KV LINES, AND COULD RESULT IN LESS 
IMPACT. THE APPLICANT REQUESTS THE 
FLEXIBILITY TO MAKE THE NECESSARY 
ADJUSTMENTS, AS NEEDED, FOR 
FUTURE FINAL DESIGNS. FUTURE 
COORDINATION THROUGH THE DOD 
CLEARINGHOUSE WILL ENSURE THAT 
THE PROPOSED HEIGHT INCREASE 
WON’T HAVE ANY IMPACT ON THE 
SURROUNDING USES. 
BARBED WIRE 
FENCING 
BARBED WIRE 
ATTACHED TO 
FENCES IS 
PROHIBITED FOR 
FENCES UNDER 8'. 
BARBED WIRE 
ATTACHED TO 
FENCING UNDER 8’ 
WILL BE ALLOWED 
WITHIN THE 
PROPERTY 
BOUNDARIES.
A REDUCTION IN THE HEIGHT OF 
FENCING WILL IMPROVE THE AESTHETIC 
OF THE PROJECT, REDUCE 
ENVIRONMENTAL IMPACTS AND BE 
MORE COMPATIBLE WITH THE 
SURROUNDING SOLAR AND 
AGRICULTURAL USES. 
LIGHT POLE 
HEIGHT 
18’ MAXIMUM FROM 
GRADE 
30’ MAXIMUM FROM 
GRADE 
A LARGER POLE HEIGHT WILL BE 
CONDUCIVE TO INCREASING 
PHOTOMETRIC REACH OF THE 
PROPOSED LIGHTING. THIS WILL ALLOW 
THERE TO BE A SMALLER AMOUNT OF 
LIGHT POLES WHICH WILL DECREASE 
LONG TERM MAINTENANCE COSTS. 
* ALL YARDS WILL BE SET TO 10’ REGARDLESS OF STREET TYPE AND ADJACENT ZONING DISTRICT. 
**DETACHED PV SOLAR ARRAY DO NOT CONTRIBUTE TO THE OVERALL LOT COVERAGE AS PER 
ARTICLE 1206.3.2.A. OF THE MARICOPA COUNTY ZONING ORDINANCE.

Bob Fedorka, PE 
Planning & Development 
301 W. Jefferson St., Suite 170 
Phoenix, Arizona 85003 
Phone: (602) 506-7151 
www.maricopa.gov/planning 
Email address: 
bob.fedorka@maricopa.gov 
Planning & Development 
 
Engineering Plan Review 
Date:    
March 18, 2024 
 
Memo To: Darren Gerard, AICP, Planning Manager, Department of Planning & 
Development 
 
Attn: 
Paola Jaramillo-Quintero, Planner, Planning & Development Services 
 
 
From: 
Bob Fedorka, P.E., Engineering Manager, Planning & Development 
Services 
 
Subject:   
Z2023137 - Zone Change (to IND-2 IUPD) & Plan of Development 
Yellow Bell Solar 
 
(E2 Memo) 
Job Site Address: West of SR 85, North of Watermelon Road, Gila Bend 
 
APN(s): 
Several 
 
PND Engineering Plan Review (DPR, FCD and PND Transportation) has reviewed the 
2nd submittal of the Zone Change and Plan of Development application routed for 
review on February 29, 2024 and has no objections subject to the following conditions: 
 
1. 
The concentrated inflow locations at the east end of the solar fields east of the 
Gila Bend Canal may warrant redirection to avoid conflict with the solar field 
grading. These locations are generally shown at those depicted as 404 washes 
and at locations where the floodplains extend east from the canal. These areas 
shall be further evaluated with the final design. 
 
2. 
On-site retention basins shall be designed to contain overflows/spillways 
designed to accommodate the unattenuated peak 100 year inflow to each 
respective basin, inclusive of offsite flows. 
 
3. 
Detailed grading and drainage plans shall be submitted with building permit 
application(s) indicating that runoff from each solar field area will be directed 
to a retention basin. Diversions may be required to direct flow towards the 
retention basins as part of the final design. 
 
4. 
The site contains area of regulated floodplains (FEMA Zone AO2) along the 
Gila Bend Canal. Disturbance of the floodplains will require procurement of a 
floodplain use permit prior to or concurrent with building permits. Inverter pads 
located in a floodplain shall be elevated to the Regulatory Flood Elevation. 
 
5. 
Preservation of 65’ of R/W on both sides of Old US 80 (measured from the 
centerline) will be required. The preservation area must be shown on the plans 
submitted for building permit(s).

Page 2 of 2 
 
 
 
 
 
 
 
 
 
 
6. 
Private utilities that will occupy County R/W (Old US 80) or other County 
property require a solar license in addition to any construction related permits. 
The solar license must be effectuated prior to issuance if building permit(s). 
 
7. 
Access points from Old US 80 under County jurisdiction shall require driveway 
right turn deceleration lanes designed in accordance with MCDOT’s Roadway 
Design and Traffic Manuals. 
 
8. 
The developer shall coordinate with MCDOT’s Planning Branch who shall 
approve the final  design for the canal crossing near driveway “F”. 
 
9. 
Engineering review of planning and/or zoning cases is for conceptual design 
only. All development and engineering design shall be in conformance with 
Section 1205 of the Maricopa County Zoning Ordinance; Drainage Policies and 
Standards; Floodplain Regulations for Maricopa County; MCDOT Roadway 
Design Manual; and current engineering policies, standards and best practices 
at the time of application for construction. 
 
10. 
There appears to be public or private irrigation facilities located on or adjacent 
to this project site. Certain entities may have rights to work in or use said 
facilities. There may be public or private rights associated with the historical 
conveyance of water within said irrigation facilities which Maricopa County 
does not regulate. It will be the applicant’s sole responsibility to ensure the 
integrity of any irrigation rights. Any disputes that may arise with respect to any 
irrigation rights are a civil matter that will not involve Maricopa County. 
 
11. 
Based on the conceptual design nature of the information submitted, changes 
to the site layout and/or a reduction in the number of solar arrays may be 
necessitated by the final engineering design of the site’s drainage 
infrastructure. 
 
Please contact me with any questions.

Yellow Bell Solar Project
Traffic Impact Study
North of I-8 & West of SR85, 11-Parcels, Town of Gila Bend
Kimley Horn
Z2023137
Plans Sealed By
Keith Christian II, P.E.
Laxmikanth Narwa, P.E./602.506.8677
Int. Review No.
Date
Item No.
Page No.
Review Comment
Code
LN
2
3/18/2024
1
General
First review comments have been acknowledged by the consultant with Code A - Will Comply 
(see attached). Therefore, MCDOT has no additional comments for this review.
LN
2
3/18/2024
2
General
Repeat: As per the comment # 7 in 1st review, for all the approved proposed access
points on US 80 under MCDOT jurisdiction, a driveway right-turn deceleration
lane shall be provided as per MCDOT Standards.
LN
2
3/18/2024
3
General
Repeat: As per the comment # 4 in 1st review, Developer shall coordinate with MCDOT 
planning for review and approval of the proposed canal crossing at Driveway F during the 
permit approval process.
The Traffic Statement is approved with the above stipulations.
Discipline
Consultant
Signature
Date
Traffic Engineering Review Comment Sheet
Project Name
Location
MCDOT File No.
Reviewer/Phone No.
Consultant: Please use the code and respond to each comment in the Consultant Reply Column. This sheet is for our records, please answer every question and sign and date your acknowledgment or the plans will be sent back 
to complete the process. Send back the marked-up plans and a new set of plans along with this sheet. Thank you for your cooperation.  
    Consultant Code: A=Will Comply   B=Deleted   C=Consultant to Evaluate
General Project Summary:
Consultant Comment
Page 1 of 1

MCDOT -- TRAFFIC ENGINEERING 
REVIEW COMMENT SHEET 
1 of 2 
Project Name: Yellow Bell Solar  
Location: North of I-8 and West of SR 85, 11-Parcels, Town of Gila Bend 
MCDOT File No.: Z2023137 
Date: January 04, 2024 
Reviewer: Laxmikanth Narwa, P.E. 
Phone No.: 602-506-8677 
Consultant: Kimley Horn 
Project No.: 
Plans Sealed By : Keith Christian II, P.E. 
Consultant Code: 
A = Will Comply        B = Deleted 
C = Consultant to Evaluate 
Item 
Number 
Page 
Number 
 
Comments 
Consultant 
Reply 
 
 
 
 
 
 
 
 
=  =  = 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1. 
 
 
 
 
 
 
2. 
 
 
 
3. 
 
 
 
 
4. 
 
 
 
 
 
 
 
 
 
 
 
 
 
=  =  = 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
General 
 
 
 
 
 
 
General 
 
 
 
Page 6 
(Typical) 
 
 
 
Site Plan 
 
 
 
 
1st REVIEW (TIS) 
 
Consultant:  Please use the code and respond to each comment in the 
Consultant Reply Column.  This sheet is for our record, please answer every 
question and sign and date your acknowledgement or the plans will be 
sent back to complete the process.  Send back the marked-up plans and a 
new set of plans along with this comment sheet.  Thank you for your 
cooperation. 
=  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  = 
Project Summary: 
 
The proposed Yellow Bell Solar project is planned to include approximately 
200 megawatts, alternating current (MWac) generating facility. The site is 
approximately 1,950 acres across 11 parcels. The facility is anticipated to be 
completed in year 2025. Access to the site will be established by the eight full-
access driveways.  
 
Per the traffic statement, at full build-out, the proposed development 
anticipates generating approximately 14 heavy vehicle trips during each of the 
AM and PM peak hours (7 trips in and 7 trips out) primarily for deliveries. 
 
General Comments: 
 
The site is primarily within the jurisdiction of the Town of Gila Bend and Old 
US 80 roadway, providing local access to the site, is under the Maricopa 
County (MCDOT) jurisdiction. The comments below pertain to roadways 
under MCDOT jurisdiction only. 
 
Review Comments: 
 
Please submit a copy of this traffic study for review and approval from the 
Town of Gila Bend (TOGB). Upon authorization, developer shall provide a 
copy of approval to MCDOT. 
 
Update the report to identify the latest MCDOT Roadway Design Manual 
(RDM), dated March 8, 2023 as the reference manual for this traffic study. For 
example, criteria for right-turn auxiliary lane (Table 7.6) are different from 
what is reported in the study in Section 2.3. Update the study accordingly.  
 
Parcels (APN# 402-03-11B, APN# 402-03-009B, & APN# 402-03-009D) 
along with US 80 appear to be within TOGB jurisdiction. Proposed access 
points within these parcels shall be approved by the TOGB. Developer shall 
coordinate with MCDOT planning for review and approval of the proposed 
canal crossing at Driveway F during the permit approval process. 
 
Use CODE 
"A", "B","C" 
in this column 
next to every 
comment. 
 
 
 
=  =  =  = 
 
 
A
A
A

MCDOT -- TRAFFIC ENGINEERING 
REVIEW COMMENT SHEET 
2 of 2 
Project Name: Yellow Bell Solar  
Location: North of I-8 and West of SR 85, 11-Parcels, Town of Gila Bend 
MCDOT File No.: Z2023137 
Date: January 04, 2024 
Reviewer: Laxmikanth Narwa, P.E. 
Phone No.: 602-506-8677 
Consultant: Kimley Horn 
Project No.: 
Plans Sealed By : Keith Christian II, P.E. 
Consultant Code: 
A = Will Comply        B = Deleted 
C = Consultant to Evaluate 
Item 
Number 
Page 
Number 
 
Comments 
Consultant 
Reply 
 
 
 
 
 
 
 
 
=  =  = 
 
 
5. 
 
 
 
 
 
 
6. 
 
 
 
 
 
 
 
 
7. 
 
 
 
 
 
8. 
 
 
 
9. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
=  =  = 
 
 
Site Plan 
 
 
 
 
 
 
Site Plan 
 
 
 
 
 
 
 
 
Page 6 
 
 
 
 
 
General 
 
 
 
General 
 
 
 
 
 
 
 
1st REVIEW (TIS) 
 
Consultant:  Please use the code and respond to each comment in the 
Consultant Reply Column.  This sheet is for our record, please answer every 
question and sign and date your acknowledgement or the plans will be 
sent back to complete the process.  Send back the marked-up plans and a 
new set of plans along with this comment sheet.  Thank you for your 
cooperation. 
=  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  = 
Review Comments: 
 
Within the project vicinity and site frontage, US 80 from south of parcel APN# 
402-03-009B is within MCDOT jurisdiction. Please update the site plan to 
include at a minimum: location, size, and spacing of proposed driveways, 
along with driveways and access points adjacent to and opposite of the 
proposed development where applicable. Please refer to Typical-Site-Plan-
Example-with-Checklist-PDF (maricopa.gov) for guidance. 
 
The future classification of US 80 on site frontage road is rural principal 
arterial; Setbacks shall be per Maricopa County Zoning Ordinance, Section 
1105 based on the Right-of-Way requirements of the future roadway 
classifications (Refer to RDM Figure 5.2) and any additional setbacks 
required by the MCDOT Planning Department during the permit process. 
Required Right-of-Way width shall be preserved but no dedication is required 
at this time. Additional directions may be stipulated by MCDOT Planning 
Department in this regard. 
 
Regardless of the turn lane warrants, for all the approved proposed access 
points on US 80 under MCDOT jurisdiction, a driveway right-turn deceleration 
lane shall be provided due to anticipated high speeds on US 80 and 
anticipated heavy vehicle usage for the facility. A minimum 160 feet of storage 
length and an opening taper rate of 15:1 (L:W) shall be provided. 
 
This review assumes no mixed-use land practice shall be allowed on this site. 
Any mixed-use activities shall require a new traffic statement be submitted for 
review and approval. 
 
Project resides in proximity to a Flood zone; floodplain management 
standards may apply. Please check with MCDOT Flood Control District for 
any applicable plan review and approvals. 
 
The Traffic Statement is NOT approved. 
 
 
Signature: _____________________________________ Date: ___________ 
Use CODE 
"A", "B","C" 
in this column 
next to every 
comment. 
 
 
 
=  =  =  = 
 
 
 
 
A
A
A

1
Paola Jaramillo Quintero (PND)
From:
Jon Fell <jfell@azdot.gov>
Sent:
Wednesday, November 29, 2023 11:27 AM
To:
Paola Jaramillo Quintero (PND)
Cc:
Gerardo Ramirez
Subject:
Re: Z2023137 Yellow Bell Solar Project Rezone Request
Follow Up Flag:
Follow up
Flag Status:
Flagged
This Message Is From an External Sender 
This message came from outside your organization. Please use caution when corresponding outside the county. 
Comments for Rezoning Case Z2023137: 
1. ADOT requires, but not limited to, a traffic statement for construction traffic to and from the site with material and 
labor; 
2. Depending on National Highway System Connection Point (existing interchange) upgrades to the on/off ramps and 
crossroad(s) or arterials within ADOT ROW with applicable ADOT Encroachment Permit. 
 
 
Jonathan Fell, PE, PTOE 
Assistant District Engineer 
ADOT Southwest District 
GOOGLE GURU 
2243 E Gila Ridge Road 
Yuma, AZ 85365 
928-317-2160 
jfell@azdot.gov 
azdot.gov 
To help protect your privacy, Microsoft Office prevented automatic download of this picture from the  
Internet.
ADOT Mission Vision Values

2
 
On Wed, Nov 22, 2023 at 11:31 AM Bernadette Martinez <bmartinez@azdot.gov> wrote: 
Good Morning, 
 
This is in your district. Thanks. 
 
 
To help 
protect your 
privacy, 
Micro so ft 
Office 
prevented 
auto matic  
download of 
this picture  
from the  
Internet. Yellow Bell Solar Project 
 
 
Bernadette Martinez 
Transportation Construction Technician IV 
Central District 
2140 W. Hilton Ave, MD 700 
Phoenix, AZ  85009 
602.712.2086 
To help 
protect your 
privacy, 
Micro so ft 
Office 
prevented 
auto matic  
download of 
this picture  
from the  
Internet. 
 
---------- Forwarded message --------- 
From: Paola Jaramillo Quintero (PND) <Paola.Jaramillo@maricopa.gov> 
Date: Wed, Nov 22, 2023 at 10:15 AM 
Subject: Z2023137 Yellow Bell Solar Project Rezone Request 
To:  
 
This email serves as a notification to Areas of Interest for the Special Use Permit application we have received, Case No. 
Z2023137, for a 802.55 acre site located northeast of Watermelon Rd & Old US HWY 80.   The request is to rezone the 
site from RU-43 and RU-190 to IND-2 IUPD for a proposed 200 MW Solar Photovoltaic Facility..  
  
Applicable documents for review are available on the Online Permit Manager at: 
https://accela.maricopa.gov/CitizenAccessMCOSS/Default.aspx.  
  
Under Planning Services select ‘Search Applications’ 
Enter the case number “Z2023137” and click enter  
New page will load with case information, at the top next to Record Info, click on the arrow drop down and select 
Attachments. 
  
The Technical Advisory Committee (TAC) will hold a meeting to discuss the above reference case on Tuesday, December 
19, 2023 at 11:15 a.m., via Microsoft Teams Meeting. Please note this meeting is reserved for technical review of the 
application documents. Please advise if you are interested in participating in the meeting or providing any comments.

3
  
Thank you, 
  
  
 
Paola Jaramillo
PLANNING & DEVELOPMENT 
Planner 
301 W. Jefferson St. #170 Phoenix, AZ 85003
O:   602-506-8150     
MARICOPA.GOV 
Facebook | Instagram | Twitter | YouTube

DATE:  
April 24, 2024 
 
TO: 
 Planning & Zoning Commission   
 
From: 
 Paola Jaramillo, Planner 
 
SUBJECT: 
 Z2023137– Yellow Bell Solar Project 
 
 Agenda Item: #3 
 
 
 
During publication of the staff report, staff was in communications with the applicant regarding 
the language of a proposed condition by MCDOT. MCDOT has provided a revised comment letter 
and has updated the language to condition c.7, the applicant has review the updated condition. 
The conditions will now read as follows (changes in bold): 
 
a. 
Development of the site that be in substantial conformance with the site plan entitled 
“Yellow Bell Solar” consisting of 21 full-size sheets, dated February 9, 2024, and 
stamped received March 29, 2024, except as modified by the following conditions. 
Staff may determine slight refinements to remain in substantial conformance with 
the approved site plan. Minor and major amendments to the site plan will be 
determined in accordance with Chapter 3 of the Maricopa County Zoning Ordinance. 
 
b. 
Development of the site shall be in substantial conformance with the narrative report 
entitled “Narrative Report for Yellow Bell Solar”, consisting of 13 pages, dated 
February 26, 2026, and stamped received February 29, 2024 except as modified by 
the following conditions. 
 
c. 
The following Planning Engineering conditions shall apply: 
  
1. The concentrated inflow locations at the east end of the solar fields east of the 
Gila Bend Canal may warrant redirection to avoid conflict with the solar field 
grading. These locations are generally shown at those depicted as 404 washes 
and at locations where the floodplains extend east from the canal. These areas 
shall be further evaluated with the final design. 
 
2. On-site retention basins shall be designed to contain overflows/spillways 
designed to accommodate the unattenuated peak 100 year inflow to each 
respective basin, inclusive of offsite flows. 
 
3. Detailed grading and drainage plans shall be submitted with building permit 
application(s) indicating that runoff from each solar field area will be directed 
to a retention basin. Diversions may be required to direct flow towards the 
retention basins as part of the final design.

4. The site contains area of regulated floodplains (FEMA Zone AO2) along the 
Gila Bend Canal. Disturbance of the floodplains will require procurement of a 
floodplain use permit prior to or concurrent with building permits. Inverter pads 
located in a floodplain shall be elevated to the Regulatory Flood Elevation.  
 
5. Preservation of 65’ of R/W on both sides of Old US 80 (measured from the 
centerline) will be required. The preservation area must be shown on the plans 
submitted for building permit(s). 
 
6. Private utilities that will occupy County R/W (Old US 80) or other County 
property require a solar license in addition to any construction related permits. 
The solar license must be effectuated prior to issuance if building permit(s). 
 
7. Prior to building permit approval, all the proposed construction access points 
approved on the US 80 under MCDOT jurisdiction, a driveway right-turn 
deceleration lane shall be provided due to anticipated high speeds on US 80 
and anticipated heavy vehicle usage for the proposed facility. A minimum 160 
feet of storage length and an opening taper rate of 15:1 (L:W) shall be 
provided as per MCDOT Standards. The developer shall coordinate with 
MCDOT’s Planning Branch to identify such proposed construction access 
point(s) on OLD US 80 that fall under County jurisdiction.  
 
8. The developer shall coordinate with MCDOT’s Planning Branch who shall 
approve the final design for the canal crossing near driveway “F”. 
 
9. Engineering review of planning and/or zoning cases is for conceptual design 
only. All development and engineering design shall be in conformance with 
Section 1205 of the Maricopa County Zoning Ordinance; Drainage Policies and 
Standards; Floodplain Regulations for Maricopa County; MCDOT Roadway 
Design Manual; and current engineering policies, standards and best practices 
at the time of application for construction. 
 
10. There appears to be public or private irrigation facilities located on or adjacent 
to this project site. Certain entities may have rights to work in or use said 
facilities. There may be public or private rights associated with the historical 
conveyance of water within said irrigation facilities which Maricopa County 
does not regulate. It will be the applicant’s sole responsibility to ensure the 
integrity of any irrigation rights. Any disputes that may arise with respect to 
any irrigation rights are a civil matter that will not involve Maricopa County. 
 
11. Based on the conceptual design nature of the information submitted, changes 
to the site layout and/or a reduction in the number of solar arrays may be 
necessitated by the final engineering design of the site’s drainage 
infrastructure. 
 
d. 
The following IND-2 IUPD Zoning District standards shall apply:

1. Maximum Electric Transmission Line Height – 150’ 
2. Parking Spaces Required – None required  
3. Loading & Unloading Spaces Required - None required  
4. Landscaping – No landscaping strip required 
5. Sight Visibility Triangles – No sight visibility triangles are required at project 
site entry/access points and road intersection, section line, mid-section line or 
alignment corners 
6. Article 902.91 – All utility uses shall be permitted to be conducted outdoors 
7. Site Enclosure and Screening – Chain-link fencing and gates are permitted 
around the perimeter of the site boundaries except that opaque chain-link 
fencing with vinyl slats shall be required along any property line abutting a 
residential zoning boundary 
8. Pavement Required – Pavement not required for parking spaces with approval 
of a dust control plan by Maricopa County Air Quality Department.  
9. Light Pole Height – 30’ maximum from grade 
 
e. 
The IND-2 IUPD shall limit the use of the site exclusively to a solar electric generating 
facility and ancillary uses. Any other uses shall require a Zone Change Major 
Amendment. 
 
f. 
The owner or developer shall receive approval of a traffic statement for construction 
in accordance with the comments received by ADOT in an email dated November 
29, 2023.  
 
g. 
The property owner/s and their successors waive claim for diminution in value if the 
County takes action to rescind approval due to noncompliance with these conditions 
or other Maricopa County regulations.  
 
h. 
The granting of this change in use of the property has been at the request of the 
applicant, with the consent of the landowner.  The granting of this approval allows 
the property to enjoy uses in excess of those permitted by the zoning existing on the 
date of application, subject to conditions.  In the event of the failure to comply with 
any condition, and at the time of expiration of the Zone Change, the property shall 
revert to the zoning that existed on the date of application.  It is, therefore, stipulated 
and agreed that either revocation due to the failure to comply with any conditions, 
or the expiration of the Zone Change, does not reduce any rights that existed on the 
date of application to use, divide, sell or possess the property and that there would 
be no diminution in value of the property from the value it held on the date of 
application due to such revocation or expiration of the Zone Change.  The Zone 
Change enhances the value of the property above its value as of the date the Zone 
Change is granted and reverting to the prior zoning results in the same value of the 
property as if the Zone Change had never been granted. 
 
 
 
Attachment: 
 
Revised MCDOT Comments (3 pages)

Yellow Bell Solar Project
Traffic Impact Study
North of I-8 & West of SR85, 11-Parcels, Town of Gila Bend
Kimley Horn
Z2023137
Plans Sealed By
Keith Christian II, P.E.
Laxmikanth Narwa, P.E./602.506.8677
Int. Review No.
Date
Item No.
Page No.
Review Comment
Code
LN
2
3/18/2024
1
General
First review comments have been acknowledged by the consultant with Code A - Will Comply 
(see attached). Therefore, MCDOT has no additional comments for this review.
LN
2
4/24/2024
2
General
Revised: Prior to building permit approval, all the proposed construction access points 
approved on US 80 under MCDOT jurisdiction, a driveway right-turn deceleration
lane shall be provided due to anticipated high speeds on US 80 and anticipated heavy vehicle 
usage for the facility. A minimum 160 feet of storage length and an opening taper rate of 15:1 
(L:W) shall be provided as per MCDOT Standards. The developer shall coordinate with 
MCDOT's Planning Branch to identify such proposed construction access point(s) on Old US 80 
that fall under County jurisdiction. 
LN
2
3/18/2024
3
General
Repeat: As per the comment # 4 in 1st review, Developer shall coordinate with MCDOT 
planning for review and approval of the proposed canal crossing at Driveway F during the 
permit approval process.
The Traffic Statement is approved with the above stipulations.
Consultant Comment
Discipline
Consultant
Signature
Date
Traffic Engineering Review Comment Sheet
Project Name
Location
MCDOT File No.
Reviewer/Phone No.
Consultant: Please use the code and respond to each comment in the Consultant Reply Column. This sheet is for our records, please answer every question and sign and date your acknowledgment or the plans will be sent back 
to complete the process. Send back the marked-up plans and a new set of plans along with this sheet. Thank you for your cooperation.  
    Consultant Code: A=Will Comply   B=Deleted   C=Consultant to Evaluate
General Project Summary:
Page 1 of 1

MCDOT -- TRAFFIC ENGINEERING 
REVIEW COMMENT SHEET 
1 of 2 
Project Name: Yellow Bell Solar  
Location: North of I-8 and West of SR 85, 11-Parcels, Town of Gila Bend 
MCDOT File No.: Z2023137 
Date: January 04, 2024 
Reviewer: Laxmikanth Narwa, P.E. 
Phone No.: 602-506-8677 
Consultant: Kimley Horn 
Project No.: 
Plans Sealed By : Keith Christian II, P.E. 
Consultant Code: 
A = Will Comply        B = Deleted 
C = Consultant to Evaluate 
Item 
Number 
Page 
Number 
 
Comments 
Consultant 
Reply 
 
 
 
 
 
 
 
 
=  =  = 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1. 
 
 
 
 
 
 
2. 
 
 
 
3. 
 
 
 
 
4. 
 
 
 
 
 
 
 
 
 
 
 
 
 
=  =  = 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
General 
 
 
 
 
 
 
General 
 
 
 
Page 6 
(Typical) 
 
 
 
Site Plan 
 
 
 
 
1st REVIEW (TIS) 
 
Consultant:  Please use the code and respond to each comment in the 
Consultant Reply Column.  This sheet is for our record, please answer every 
question and sign and date your acknowledgement or the plans will be 
sent back to complete the process.  Send back the marked-up plans and a 
new set of plans along with this comment sheet.  Thank you for your 
cooperation. 
=  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  = 
Project Summary: 
 
The proposed Yellow Bell Solar project is planned to include approximately 
200 megawatts, alternating current (MWac) generating facility. The site is 
approximately 1,950 acres across 11 parcels. The facility is anticipated to be 
completed in year 2025. Access to the site will be established by the eight full-
access driveways.  
 
Per the traffic statement, at full build-out, the proposed development 
anticipates generating approximately 14 heavy vehicle trips during each of the 
AM and PM peak hours (7 trips in and 7 trips out) primarily for deliveries. 
 
General Comments: 
 
The site is primarily within the jurisdiction of the Town of Gila Bend and Old 
US 80 roadway, providing local access to the site, is under the Maricopa 
County (MCDOT) jurisdiction. The comments below pertain to roadways 
under MCDOT jurisdiction only. 
 
Review Comments: 
 
Please submit a copy of this traffic study for review and approval from the 
Town of Gila Bend (TOGB). Upon authorization, developer shall provide a 
copy of approval to MCDOT. 
 
Update the report to identify the latest MCDOT Roadway Design Manual 
(RDM), dated March 8, 2023 as the reference manual for this traffic study. For 
example, criteria for right-turn auxiliary lane (Table 7.6) are different from 
what is reported in the study in Section 2.3. Update the study accordingly.  
 
Parcels (APN# 402-03-11B, APN# 402-03-009B, & APN# 402-03-009D) 
along with US 80 appear to be within TOGB jurisdiction. Proposed access 
points within these parcels shall be approved by the TOGB. Developer shall 
coordinate with MCDOT planning for review and approval of the proposed 
canal crossing at Driveway F during the permit approval process. 
 
Use CODE 
"A", "B","C" 
in this column 
next to every 
comment. 
 
 
 
=  =  =  =

MCDOT -- TRAFFIC ENGINEERING 
REVIEW COMMENT SHEET 
2 of 2 
Project Name: Yellow Bell Solar  
Location: North of I-8 and West of SR 85, 11-Parcels, Town of Gila Bend 
MCDOT File No.: Z2023137 
Date: January 04, 2024 
Reviewer: Laxmikanth Narwa, P.E. 
Phone No.: 602-506-8677 
Consultant: Kimley Horn 
Project No.: 
Plans Sealed By : Keith Christian II, P.E. 
Consultant Code: 
A = Will Comply        B = Deleted 
C = Consultant to Evaluate 
Item 
Number 
Page 
Number 
 
Comments 
Consultant 
Reply 
 
 
 
 
 
 
 
 
=  =  = 
 
 
5. 
 
 
 
 
 
 
6. 
 
 
 
 
 
 
 
 
7. 
 
 
 
 
 
8. 
 
 
 
9. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
=  =  = 
 
 
Site Plan 
 
 
 
 
 
 
Site Plan 
 
 
 
 
 
 
 
 
Page 6 
 
 
 
 
 
General 
 
 
 
General 
 
 
 
 
 
 
 
1st REVIEW (TIS) 
 
Consultant:  Please use the code and respond to each comment in the 
Consultant Reply Column.  This sheet is for our record, please answer every 
question and sign and date your acknowledgement or the plans will be 
sent back to complete the process.  Send back the marked-up plans and a 
new set of plans along with this comment sheet.  Thank you for your 
cooperation. 
=  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  =  = 
Review Comments: 
 
Within the project vicinity and site frontage, US 80 from south of parcel APN# 
402-03-009B is within MCDOT jurisdiction. Please update the site plan to 
include at a minimum: location, size, and spacing of proposed driveways, 
along with driveways and access points adjacent to and opposite of the 
proposed development where applicable. Please refer to Typical-Site-Plan-
Example-with-Checklist-PDF (maricopa.gov) for guidance. 
 
The future classification of US 80 on site frontage road is rural principal 
arterial; Setbacks shall be per Maricopa County Zoning Ordinance, Section 
1105 based on the Right-of-Way requirements of the future roadway 
classifications (Refer to RDM Figure 5.2) and any additional setbacks 
required by the MCDOT Planning Department during the permit process. 
Required Right-of-Way width shall be preserved but no dedication is required 
at this time. Additional directions may be stipulated by MCDOT Planning 
Department in this regard. 
 
Regardless of the turn lane warrants, for all the approved proposed access 
points on US 80 under MCDOT jurisdiction, a driveway right-turn deceleration 
lane shall be provided due to anticipated high speeds on US 80 and 
anticipated heavy vehicle usage for the facility. A minimum 160 feet of storage 
length and an opening taper rate of 15:1 (L:W) shall be provided. 
 
This review assumes no mixed-use land practice shall be allowed on this site. 
Any mixed-use activities shall require a new traffic statement be submitted for 
review and approval. 
 
Project resides in proximity to a Flood zone; floodplain management 
standards may apply. Please check with MCDOT Flood Control District for 
any applicable plan review and approvals. 
 
The Traffic Statement is NOT approved. 
 
 
Signature: _____________________________________ Date: ___________ 
Use CODE 
"A", "B","C" 
in this column 
next to every 
comment. 
 
 
 
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