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    • Land Survey >
      • Grimes Heights - Tulsa
      • Haikey Creek - Bixby
      • Oak Ridge
      • Roland Casino Auxiliary Lane - Roland
      • W.W. Hastings Hospital
    • Site Design >
      • Cherokee Springs Plaza Phase 1
      • Ramona Casino Phase I
      • CNE Casino 3 - Catoosa, OK
      • Eufaula Indian Health Center
      • MCN Reintegration Campus
      • Evergreen Baptist Church
      • Assembly of God Church, Broken Arrow, OK
      • Central Baptist Church
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      • Nowata Food Distribution Center
      • W.W. Hastings Hospital
      • Baker Hughes ALRTC - Claremore
      • Seminole Nation Tribal Cemetery
      • Seminole Nation Health and Wellness Center
      • Pawnee Tribal Elder Center
      • United Keetoowah Band Office/Retail Development
    • Stormwater >
      • Haikey Creek
      • Joe Creek
    • Transportation >
      • Highways >
        • Oak Ridge Road
        • US 59 Highway Realignment
        • Ramona Casino Phase II
        • Highway 62/SHS Intersection
        • Highway 62 Fort Gibson Casino
      • Arterial >
        • Harvard Ave. - 61st to 51st Rehabilitation
        • 151st Road Improvements
        • 1100 Road Reconstruction
        • North Riverview Road Improvements
        • Admiral & Memorial Intersection
        • E. 121st St Intersection/Widening
        • 131st & Mingo Intersection
        • ODOT Coal Creek Bridge Shoofly
      • Maintenance Zones >
        • MZ 3008 Street Rehab
        • MZ 4024
        • MZ 5033 Street Rehab
        • MZ 5041/5041C Phase I & II Street Rehab
        • MZ 7045/9045 Street Rehab
        • MZ 8103A Street Rehab
        • MZ 9036 Street Rehab
    • Wastewater Design >
      • Grimes Heights, Tulsa, Unsewered Area
      • Osage Casino - Ponca City
    • Water Resources >
      • Wyandotte Nation Housing Complex
      • 2 Inch Waterline Replacement, Citywide TMUA-W 08-13
      • Booster Pump and Waterline Extension Rural Water District #1, Kay County
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The Cherokee Nation Community Services Group, Roads Department contracted CGA Engineers, Inc. to prepare engineering design plans for Oak Ridge Road.  Project involves the construction of six (6) miles roadway corridor beginning at the intersection of N4740 Road in Adair County Oklahoma to Arkansas Highway 59.  The project includes investigation, analysis and data collection, evaluation of existing conditions, surveying, and general services during construction.  This project involves grading, drainage, and surfacing.  Portions of the roadway are on new horizontal alignment to meet design speed requirements.  The project will be designed for a 40mph with 0.3% minimum grades and maximum grades of 12%.  The recommended roadway width of 30 ft, with a typical section that included 4ft shoulders (2 ft unpaved, 2ft paved), 11 ft lanes and a 2% cross slope was used.  This project will have an optimized geometry that features a switchback alternative designed for 35 mph and required deviation from existing corridor.  It meanders from the existing corridor with flatter curves for 8% super elevation in order to achieve cut/fill depths within 50ft or less.  The corridor will switch back with loner transitions to meet each horizontal curve.  The geometric layout deviates from the original roadway at some locations, but it allows for a horizontal roadway alignment that meets design requirements and switchback to the existing roadway.  It maintains the minimum transition length between horizontal curves and still meets the AASHTO Guidelines.  It minimized the rock excavation.  A conceptual design was presented and approved and currently under preliminary design review process.  The project also includes drainage analysis and drainage design for four culvert box bridges at four creek crossings along the corridor.  The project is estimated to begin construction in 2020.  Estimated construction cost between $8-$10 million dollars.
CGA Engineers, Inc. - Civil / Environmental Engineering & Land Surveying
  • Welcome
    • Location - Contacts
  • Professional Staff
    • Ancillary Staff
  • Services
    • Site Design
    • Stormwater
    • Transportation
    • Wastewater
    • Water Design
    • Survey
  • Project Profiles
    • Land Survey >
      • Grimes Heights - Tulsa
      • Haikey Creek - Bixby
      • Oak Ridge
      • Roland Casino Auxiliary Lane - Roland
      • W.W. Hastings Hospital
    • Site Design >
      • Cherokee Springs Plaza Phase 1
      • Ramona Casino Phase I
      • CNE Casino 3 - Catoosa, OK
      • Eufaula Indian Health Center
      • MCN Reintegration Campus
      • Evergreen Baptist Church
      • Assembly of God Church, Broken Arrow, OK
      • Central Baptist Church
      • Collinsville Food Distribution Center
      • Nowata Food Distribution Center
      • W.W. Hastings Hospital
      • Baker Hughes ALRTC - Claremore
      • Seminole Nation Tribal Cemetery
      • Seminole Nation Health and Wellness Center
      • Pawnee Tribal Elder Center
      • United Keetoowah Band Office/Retail Development
    • Stormwater >
      • Haikey Creek
      • Joe Creek
    • Transportation >
      • Highways >
        • Oak Ridge Road
        • US 59 Highway Realignment
        • Ramona Casino Phase II
        • Highway 62/SHS Intersection
        • Highway 62 Fort Gibson Casino
      • Arterial >
        • Harvard Ave. - 61st to 51st Rehabilitation
        • 151st Road Improvements
        • 1100 Road Reconstruction
        • North Riverview Road Improvements
        • Admiral & Memorial Intersection
        • E. 121st St Intersection/Widening
        • 131st & Mingo Intersection
        • ODOT Coal Creek Bridge Shoofly
      • Maintenance Zones >
        • MZ 3008 Street Rehab
        • MZ 4024
        • MZ 5033 Street Rehab
        • MZ 5041/5041C Phase I & II Street Rehab
        • MZ 7045/9045 Street Rehab
        • MZ 8103A Street Rehab
        • MZ 9036 Street Rehab
    • Wastewater Design >
      • Grimes Heights, Tulsa, Unsewered Area
      • Osage Casino - Ponca City
    • Water Resources >
      • Wyandotte Nation Housing Complex
      • 2 Inch Waterline Replacement, Citywide TMUA-W 08-13
      • Booster Pump and Waterline Extension Rural Water District #1, Kay County
  • Planroom
  • Personnel Charts
    • Table of Organization
    • Personnel Capacity
  • Job Opportunities
    • Professional Civil Engineer
    • Civil Engineering Intern
    • Civil Engineering Technician
    • Survey Technician