We offer a full range of biomedical, health and safety, petroleum, and environmental engineering services.  Our organization is highly regarded for its diverse and relevant skills. We stand ready to work with single service and complex projects.

Jay Laughlin added some stuff.

Work Category: Fuel Tanks (AST/UST) Removal/ Installation/Upgrade/General Maintenance, Remediation Services, Soil and Groundwater Sampling/Monitoring, Well Installation/Subsurface Investigation/Remediation, Professional Engineer Services, SPCC, SWP3, Lead Based Paint Abatement (Residential/Commercial Buildings), Fencing, Demolition, Incidental Concrete Construction, Building Remodeling

Environmental Remediation/Inspection/Impact Assessments

Work Category: Janitorial Services, Window Cleaning, Final Construction Clean, Environmental Consulting Services, Mold Testing and Sampling, Solid Waste Collection, Hazardous/Non-Hazardous Waste Collection and Management, Remediation Services (Lead, Mold, Indoor Air Quality), Waste Management Services, Water Damage Restoration

Work Category: Environmental Consulting: Prepare and Complete NEPA Studies and Documents, Long Range Planning, INCOG Coordination

ARK II, Inc. Roya Sharifsoltani, President 710 North Washington Stillwater, Oklahoma 74075 Phone: 405-377-3100 Mobile: 405-334-1927 Email: ap42epa@hotmail.com ODOT DBE Cert. No.: 482 NAICS Code: 541620 Work Category: Environmental Consulting Credit: 100%

Tribal Services

Red Plains Professional works to create strong tribal services programs through collaborative projects designed to develop strong working relationships with our tribal clients.  Our projects are professionally catered to the unique needs of each tribal transportation program.

Our mission is predicated on long term commitment to serve the Tribes, whom we are honored to support.  Red Plains Professional is a 100% Native American Owned Company with a history of completing tribal projects nationwide.  Our staff is excited, willing, and able is work where each tribe calls home.

Red Plains Professional has been and will continue to be well versed in projects funded under the Tribal Transportation Program.  We work daily within the Tribal Transportation Program to understand its history, challenges, and future. Our overall experience serving tribal clients has led to a range of projects that include planning, safety audits, asset management, inventory, roadway design, site design, utility design, and construction management.

Red Plains Professional aims to serve tribal clients by aligning the professional staff from each individual Tribe with the resources brought forth by our firm.  We offer numerous services that aide in accommodating projects of any size or scope.

  • Transportation Planning
  • Traffic Impact Analysis
  • Transit Planning
  • Roadway Safety Audits
  • Master Planning & Land Use Planning
  • Asset Management
  • Technical Assistance
  • Roadway Inventory
  • Geospatial Information Systems (GIS)
  • Environmental Compliance
  • Right-of-Way Acquisition
  • Roadway Design
  • Site Design
  • Utility Design
  • Bridge & Structure Design
  • Hydrology & Hydraulics
  • Slope Stability


Red Plains Professional’s municipal design professionals exude passion for the communities they live in by going above and beyond to provide efficient, innovative, and cost effective municipal projects.  Our vested interest as citizens of these communities provide a great value within every project and guarantees that our projects leave a lasting impression on those communities.

We partner with various types of communities of all sizes to bring their immediate and long term goals to fruition. Our experience has led to a portfolio that encompasses an array of projects that include arterial roadway design, utility design, trail/bike facilities, planning, and emergency repair design. Our objective is to deliver a consistently high quality project, while being mindful of sustainability, the environment, cost, and the citizens of the communities we serve.

Red Plains Professional’s municipal design team leads a collaboration of municipalities, user-groups, citizens, and other design professionals to offer to a seamless delivery for every project. We offer numerous services that aide in accommodating municipal projects of any scope.

  • Planning
  • Right-of-Way Acquisition
  • Utility Design
  • Arterial Roadway Design
  • Roundabout Design
  • Bridge & Structures Design
  • Hydrology & Hydraulics
  • Trail & Bicycle Facilities
  • Safety Studies & Projects
  • Site Design
  • Landscape Design
  • Streetscape Design
  • Geotechnical Investigation
  • Slope Stability
  • Erosion Control
  • Low Impact Development (LID)
  • Environmental Compliance
  • Surveying
  • ADA Compliance
  • Public Involvement