Sequoia Trail Engineers LLC

1432 E. Northern Ave.

Phoenix, Arizona 85020

T: 602-997-2999

F: 602-997-2957

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Completed Projects


- Chandler Regional Medical Center OB Triage Renovation
- Hearthstone Hospital Conversions
- Thomas Sweeten Surgery Center
- North Valley Surgery Center
- Arrowhead Hospital Continuing Care Nursery Renovations
- Arrowhead Hospital OR-7 renovation
- Arrowhead Hospital Cath/EP renovation
- Cibola Vista Time Share Facility Water Park and Pool House Facilities
- Cibola Vista Time Share Phase II construction Administration
Please select projects from the left side of your screen to see specific details.
Project: Casa Grande Data Center

Client: City of Casa Grande, design bid build � Willmeng Construction
Location: Casa Grande, Arizona

Project Description:

Design of a complete new data center for the City. A new 24KW UPS was installed which is upgradeable to 60KW with the ability to add a second redundant system for future growth needs. The HVAC was completed via new 20 Ton Liebert CRAC unit with the provisions for the installation of a future 20 Unit. A 125KW/156kva Generator was installed to provide long term backup power for the facility.

Project: Data Center City of Sedona

Client: City of Sedona �Design Bid Build
Location: Sedona, Arizona

Project Description:

Design of a new data center in a new office facility in Sedona. A new 12KW UPS expandable to 60KW was installed in the new data center. An ATS was installed with provisions for a future generator with and wiring connects for a roll in temporary generator. The HVAC was a new 5 Ton Challenger CRAC unit with future provisions for a second and future redundant third unit.

Project: Highwinds Network Group NOC

Client: Highwinds Network Group
Location: Phoenix, Arizona

Project Description:

Design of a new NOC in an existing data center facility. New lighting, power and data systems were installed and were powered off the existing data center emergency power systems to provide reliable power for the critical network operations control center.

Project: Highwinds Network Group Data center

Client: Highwinds Network Group and PureGig
Location: Phoenix, Arizona

Project Description:

Design of ongoing data center changes and additions, continual upgrades to the UPS, Generator and HVAC system. The facility is located with a multi story high rise facility with generators and Chiller plant located in an attached parking structure.

The facility provides many ongoing challengers that a typical data center would not have with modifications requiring coordination with the tenants needs and building facilities personnel to complete the designs, taking into account the requirement of both parties.

Project: FTC Service Consolidation

Client: Titan Power, Inc. Design build Titan Power Inc.
Location: Gilbert, Arizona

Project Description:

STE studied the three existing 3000A, 480V, 3 phase, Service Entrance Sections (SES) and the facilities power usage, need for emergency power and its reliability. STE determined that the facility was using less then 50% of the available electrical capacity and that there were substantial utility penalties for under utilization. We were able to analyze the loads and consolidate the three services into two SES�s and reduce the ampacity of each to 1600Amps. The two remaining SES�s had 1600A ATS�s cabinets installed which connected the facility to a new 1750KW standby emergency power generator. The owner reduces his electrical cost, saved penalty fees and the two tenants, Godaddy and B of A both received adequate reliable back up power systems.

Project: Banner Health IT Department Consulting

Client: Banner Health IT Department
Location: Various Valley Hospitals

Project Description:

STE was hired to review various projects that were under design and construction to verify that the new facility designs were appropriate for the applications. Several of the new hospital MDF and IDF room designs were determined to be �over-designed, extremely complicated and without the desired reliability that Banner needs for there IT systems. STE scheduled meetings with Banner IT, networking, security, TV and other systems personnel. We went through each of there needs and power requirements room by room, equipment by equipment to develop realistic power needs for each MDF and typical IDF room.

STE was then contracted to develop a prototype design with various options that could by used and modified for each new facility. Two different yet similar designs were developed with various possible options accounted for. The resulting designs were very reliable, cost effective and extremely flexible for the clients needs.

Project: Freeport McMoran, Inc.(FMI)/previously Phelps Dodge

Client: Oddoneto Construction/David B. Howell Design Build
Location: Morenci, Arizona

Project Description:

STE designed an emergency generator power distribution system for the Morenci mining facility to provide power for the existing Data Center and a new Operations Command Center. STE was also retained to design the Command center and to provide a power and HVAC renovation of the existing data center.

Project: Freeport McMoran, Inc.

Client: Oddoneto Construction
Location: Safford, Arizona

Project Description:

STE designed an emergency power generator system for the Safford mine along with replacing and upgrading the existing UPS system to provide redundant UPS systems, new three phase power distribution system and redundant power at the racks.

Project: Ironwood Oncology Facility

Client: Smith Group Medical, Design Bid Build
Location: Gilbert Arizona

Project Description:

Design of a new ground up, stand alone, 2 story building of approx. 20,000 sf. The facility includes exam rooms, infusion rooms, lab space along with an �Electa� Linear Accelerator vault with provisions for a second, Linear Accelerator vault, CT and Digital Radiation equipment.

Project: Ironwood Oncology - Mesa Addition

Client: Smith Group Medical
Location: Mesa, Arizona

Project Description:

Building addition of approx 6000 square foot of medical office space. The project includes a new Electa Linear Accelerator and new PET/CT scanner.

Project: AZ Radiation Oncology - Pima Center One

Client: Smith Group Medical - Design Bid Build
Contractor: IBC Southwest
Location: Scottsdale, Arizona

Project Description:

9000 SF Medical office build-out of an existing shell building with a new PET/CT and Varian Linear Accelerator Vault.

Project: AZ Radiation Oncology Rose Garden

Client: Smith Group Medical - Design Bid Build
Contractor: IBC Southwest
Location: Phoenix, Arizona

Project Description:

9500 SF medical office build-out of an existing shell building with a new PET/CT. The project also included a building addition for a Varian Linear Accelerator Vault.

Project: Valley Radiology - Estrella Suite 200

Client: Project Development Resources, design build
Contractor: Project Development Resources
Location: Phoenix, Arizona

Project Description:

5000 SF medical office tenant improvement. The project includes Ultra Sound, Bone Density, Mammography and Stereo Biopsy rooms.

Project: Valley Radiology - Paradise Valley

Client: Project Development Resources, design build
Contractor: Project Development Resources
Location: Phoenix, Arizona

Project Description:

Design for new Digital X-Ray and Mammography equipment.

Project: Valley Radiology - Paseo II

Client: Project Development Resources, design build
Contractor: Project Development Resources
Location: Phoenix, Arizona

Project Description:

4000 SF Renovation to accommodate new Digital Fluroscopy and Ultra Sound Equipment.

Project: Insight Imaging at Special Surgical Hospital of Arizona

Client: David B. Howell, Design Bid Build
Contractor: Guthrie General
Location: Phoenix, Arizona

Project Description:

Demolition of existing patient rooms in the Hospital to be converted to an outpatient imaging center. The facility includes new MRI, CT and Digital x-ray equipment.

Project: WARMC Outpatient MRI Addition

Client: David B Howell
Location: Bullhead City, Arizona

Project Description:

New building addition to an existing imaging center. The new addition includes a new MRI and control room.

Project: WARMC Cardio Pulmonary Rehab and Blood Lab Relocations

Client: David B. Howell
Location: Bullhead City, Arizona

Project Description:

Relocation of these existing functions which had been located in the basement to the second floor. The basement area was converted into administration offices.

Project: Mountain West Imaging Kingman

Client: Guthrie General, Design Build
Location: Kingman, Arizona

Project Description:

10,000 SF tenant building out of an existing shell building. The imaging center included a MRI, CT and Digital x-ray equipment.

Project: VA Hospital Phoenix � MRI

Client: Guthrie General, Design Build
Location: Phoenix, Arizona

Project Description:

New Siemens 1.5 T Magnet located on the Second Floor.

Project: Premier Oncology at Pima Center One

Client: Premier Oncology, Design Build with Opus Construction
Location: SRPMIC, Arizona

Project Description:

The Build out of approximately 27,000SF of shell building space into a state of the art Oncology research center with infusion areas, pharmacy, labs, blood draw, exam rooms and associated doctor offices and administration spaces.

Project: Boswell Hospital New Hyperbaric chambers

Client: Guthrie General, Design Build
Contractor: Guthrie General
Location: Sun City, Arizona

Project Description:

New Wound Care department located on the Second Floor in the facility which included two new Hyperbaric Chambers.

Project: Arrowhead Oncology Vault Addition and TI

Client: Smith Group
Contractor: Jokake Construction
Location: Glendale, Arizona

Project Description:

The existing medical facility was renovated in phases for a total remodel of the existing office/medical space while remaining in operation The final phase of the renovation included the installation of a new CT and the addition of a second Linear Accelerator vault.

Project: Chandler Regional Medical Center OB Triage Renovation

Client: Devenney Group, Ltd
Contractor: Layton Construction
Location: Chandler, Arizona

Project Description:

Converted existing waiting room and recovery area into a new twelve bed triage area for the OB department..

Project: Hearthstone Hospital Conversions

Client: Devenney Group Ltd.
Locations: Mesa, Arizona and Surprise, Arizona

Project Description:

Converted two existing long term rehabilitation facilites into a licensed hospital.

Project: Thomas Sweeten Surgery Center

Client: SSOE, Design Bid Build
Contractor: IBC Southwest
Location: Phoenix, Arizona

Project Description:

Renovation and infill of an existing traffic court facility into an �I� occupancy state of the art outpatient surgery center. The facility included doctors exam and office areas. The surgery area included patient recovery beds, two operation rooms plus a procedure room and a PACU and associated nurses station.

Project: North Valley Surgery Center

Client: David B. Howell Design Bid Build
Contractor: Ryan Companies
Location: Phoenix, Arizona

Project Description:

The renovation of an existing procedure room into a second larger operation room and associated increase in patient recovery beds. Existing administration functions were relocated to a new space within the facility to accommodate the surgery modification.

Project: Arrowhead Hospital Continuing Care Nursery Renovations

Client: Devenney Group Ltd � Design build � DPR Construction
Location: Glendale, Arizona

Project Description:

The project was the renovation of existing patient and OB Triage departments. Most of the third floor of the hospital was renovated and a building addition was included expand the existing OB triage by approx, 40%. The renovated space included a new larger well baby nursery along patient rooms being converted to continuing care nursery rooms, renovation of the nurses station, med rooms, and the addition of a second nurses station for the continuing care nursery area, new isolation room and new C-section recovery rooms.

Project: Arrowhead Hospital OR-7 Renovation

Client: Devenney Group Ltd. � Design Build
Contractor: DPR Construction
Location: Glendale, Arizona

Project Description:

The project was the demolition and expansion of and existing Operating room which was reconstructed as a new Special Procedures Operating Room incorporating a new Phillips Catherization unit with laminar flow HVAC, specialty surgery lighting, three monitor booms and two Stryker light booms.

Project: Arrowhead Hospital Cath/EP Renovation

Client: Devenney Group Ltd � Design Build
Contractor: DPR Construction
Location: Glendale, Arizona

Project Description:

The existing Cath Lab was demolished and reconstructed to incorporate a new Phillips Cath/EP unit with new control station and lighting.

Project: Summit at Avondale shell Office Building

Client: Specified Electrical Contractors
Location: Avondale, Arizona

Project Description:

Electrical Engineering and design for a new 5 story 125,000 SF class A shell office building.

Project: Summit at Avondale Parking Structure

Client: Specified Electrical Contractors
Location: Avondale, Arizona

Project Description:

Electrical engineering and design of a new 5 story 600 Car parking structure to be shared by a new office complex, attached retail center and adjacent resort.

Project: W.L. Gore Warehouse Renovation

Client: JWA � Design bid build
Location: Flagstaff, Arizona

Project Description:

Design of a new 12,000 SF warehouse, flex space manufacturing facility.

Project: W.L. Gore Lobby Lighting

Client: WLG
Location: Flagstaff, Arizona

Project Description:

Design of a new lighting layout to replace the existing lighting system which did not function properly for the facility.

Project: Crescent Crown Distribution Center

Client: Viking Electric �Design Build with Arco Construction
Location: Surprise, Arizona

Project Description:

The project was a new 288,000sf ground up facility. The facility included appox 12,000sf new office layout, 20,000sf refrigerated warehouse with th balance of the facitlity warehouse, fork lift charing and packaging equipment. The faqcility was designe to receive delivers by rail on the west an truck dock distribution system on the north and east sides of the facility.

Project: Cibola Vista Time Share Facility Water Park and Pool house Facilities

Client: Architectural Concepts
Contractor: Chanen Construction
Location: Peoria, Arizona

Project Description:

New poolside restaurant and pool equipment building.

Project: Cibola Vista Time Share Phase II construction Administration

Client: Architectural Concepts
Contractor: Chanen Construction
Location: Peoria, Arizona

Project Description:

Construction administrative services for a four story a 128 room time share facility.