Variety is pretty much a way of life around here: We go from big to small, local to national, public to private, but always keep it person-to-person – we just haven’t found a better way of building business than through building relationships. So get to know a little of our work, and then let’s get to know one another.


USACE, Tulsa District

Phase II Master Plan and Reconnaissance

The Guernsey Team (included EDAW [now AECOM] and Alaback & Associates) prepared the Phase II Master Plan and Preliminary Reconnaissance for the Arkansas River Corridor through the Tulsa, OK metropolitan area. The Plan was developed in conjunction with the Vision...


City of Ada

Water Resources Planning - Feasibility and Engineering Study

Anticipated water shortages have City officials concerned about meeting water demands now and in the future. The City water supply is currently obtained from Byrd’s Mill Spring (Arbuckle-Simpson Aquifer is the source). Guernsey was selected to address the proposed lake...


City of Stillwater

Stillwater Transportation Enhancement Plan (STEP)

In addition to population growth within the City, there are a large number of commuters from neighboring communities who travel to and from the City on a daily basis for employment, shopping and educational purposes. Guernsey and teaming partner Wilbur...


City of Purcell

Green Avenue Enhancements, Streetscape, and Complete Streets

Guernsey’s Master Plan envisions lighting improvements, landscaping, irrigation, pedestrian crosswalks, sidewalks, and gateway features. Guernsey developed a schematic design for the entire corridor from North I-35 ramps to the South I-35 ramps, and additional three miles. The City of Purcell...



Strategic Water Project, Major Mid-Continent Petroleum Refinery

Guernsey was retained to help a major Mid-West petroleum refinery develop and implement a long range strategic plan to modernize, strengthen, and secure the raw water supply and delivery system...


Oklahoma Electric Cooperative

Administration and Shop Facility

This new facility accommodates administration, maintenance and other support operations that have outgrown their present facility. The design made use of cost-effective systems for long-term durability to meet their daily...


City of Oklahoma City,...

Consolidated Rental Car Facility

The 39-acre site was designed to accommodate nine rental car agencies in a true “common” facility. Multiple operational planning studies were developed to ensure the greatest level of operational efficiency...


The Boeing Company

Boeing Office & Electronics Laboratory Facility

This project features a two-story office and lab facility that is 316,000 square feet in size, with roadways, extensive landscaping of its 40-acre site, and more than 1,200 parking spaces...


American Fidelity Assurance

American Fidelity Assurance Office Renovation

There’s a reason American Fidelity Assurance consistently lands on a variety of national Best Places To Work lists. They truly go the extra square feet to give their employees a...


Absentee Shawnee Tribe

Comprehensive Water Management Plan

The plan is for 12,500-acres of tribal land located in central Oklahoma. Water resources contained within tribal boundaries include: the North Canadian River, Littler River, the Canadian River, Lake Thunderbird tributaries, Garber-Wellington Aquifer, Vamoose-Ada Aquifer, North Canadian River Alluvial Aquifer...



INTEGRIS Nazih Zuhdi Transplant Institute – Renovation & Relocation

The INTEGRIS Nazih Zuhdi Transplant Institute is one of Oklahoma’s leaders in the organ transplant field. Throughout this project, we sought to translate the strength and innovation the institute’s name...



INTEGRIS Heart Hospital – Entrance and Lobby Renovation

INTEGRIS launched this project to address both the branding and patient flow challenges presented by the facility’s location within an existing on-campus medical building. To improve the patient process, from...