eec engineering and environmental consultants

Rural Highway Planning and Design

EEC provides full-service civil engineering, drainage, surveying, landscape design, and environmental planning services statewide; and we are recognized for our excellent working relationship and quality workmanship on numerous highway projects. We offer a design team that has consistently provided our clients with quality plans and specifications.

Service Areas Include:

Safety Improvements
Final Design
Public Involvement
Hydraulic Analysis
Pavement Rehabilitation

Project Experience:

I-10 Interim Widening, Jct. I-8 to SR 87, Pinal County, Arizona

EEC is providing design services to the Arizona Department of Transportation for 15 miles of interim widening from two lanes to three lanes in each direction. Services include roadway design, traffic engineering, bridge widening, electrical design, drainage design, pavement design, cost estimating, and post-design.

I-19/Sahuarita Road Traffic Interchange DCR and EA, Pima County, Arizona

EEC is providing engineering design services to the Town of Sahuarita for the preparation of a Design Concept Report and an Environmental Assessment under NEPA. Services include roadway design, bridge design, drainage design, utility coordination, environmental assessments, biological surveys, noise analysis, traffic engineering, and public outreach.

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Interstate 10, Pinal Air Park TI to Cortaro TI, Tucson, Arizona

EEC provided photogrammetry, design surveys and construction documents for the widening of 15 miles of I-10 from four to six lanes (3 eastbound, 3 westbound). The $40 million project included widening 12 bridge structures at Marana Road, Tangerine Road, two railroad overpasses, Avra Valley Road and Cortaro Road. The project also included widening of two ramps at the Cortaro TI and the widening of Cortaro Road under the I-10 overpass to provide two additional "abutment lanes".

US 60, Hagen Hill, Arizona

Prepared a Location/Design Concept Study and Final Design to improve safety of a 3-mile existing, mountainous, curved alignment. EEC used CAD to provide 3-D visualization and to produce earthwork quantities. The project included a complex drainage study of Long Tom Spring and Corduroy Creek watersheds, and final design for safety and operational improvements for 3 miles of rural arterial with sidehill viaduct.

SR 90, I-10 to Kartchner Caverns State Park Project Management, Arizona

Provided project management for the final design of 15 kilometers of widening from two lanes to a four-lane divided arterial including detailed hydraulic analysis and design for 99 culvert crossings.

SR 69, Poland Junction-Humboldt, Yavapai County, Arizona

Construction plans, cost and quantity estimates, and special provisions for the construction of three miles of four-lane divided highway and frontage roads. The project was designed for the Arizona Department of Transportation and included a number of significant drainage structures and erosion control features.

U.S. 180, Jct. B-40 to Columbus, Flagstaff, Arizona

EEC provided the design of pavement widening and reconstruction of curbs, sidewalks, relocation of existing utilities, and design of a major storm-sewer system through an inter-governmental agreement between ADOT and the City of Flagstaff. The project was a fast-track design using partnering techniques and extensive public involvement to allow design and construction to be completed in 12 months.



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		Transportation Rural Highway Planning and Design EEC provides full-service civil engineering, drainage, surveying, landscape design, and environmental planning services statewide; and we are recognized for our excellent working relationship and quality workmanship on numerous highway projects. We offer a design team that has consistently provided our clients with quality plans and specifications. Service Areas Include: Safety Improvements Final Design Public Involvement Hydraulic Analysis Pavement Rehabilitation Project Experience: I-10 Interim Widening, Jct. I-8 to SR 87, Pinal County, Arizona EEC is providing design services to the Arizona Department of Transportation for 15 miles of interim widening from two lanes to three lanes in each direction. Services include roadway design, traffic engineering, bridge widening, electrical design, drainage design, pavement design, cost estimating, and post-design. I-19/Sahuarita Road Traffic Interchange DCR and EA, Pima County, Arizona EEC is providing engineering design services to the Town of Sahuarita for the preparation of a Design Concept Report and an Environmental Assessment under NEPA. Services include roadway design, bridge design, drainage design, utility coordination, environmental assessments, biological surveys, noise analysis, traffic engineering, and public outreach. Click to Enlarge Interstate 10, Pinal Air Park TI to Cortaro TI, Tucson, Arizona EEC provided photogrammetry, design surveys and construction documents for the widening of 15 miles of I-10 from four to six lanes (3 eastbound, 3 westbound). The $40 million project included widening 12 bridge structures at Marana Road, Tangerine Road, two railroad overpasses, Avra Valley Road and Cortaro Road. The project also included widening of two ramps at the Cortaro TI and the widening of Cortaro Road under the I-10 overpass to provide two additional "abutment lanes". US 60, Hagen Hill, Arizona Prepared a Location/Design Concept Study and Final Design to improve safety of a 3-mile existing, mountainous, curved alignment. EEC used CAD to provide 3-D visualization and to produce earthwork quantities. The project included a complex drainage study of Long Tom Spring and Corduroy Creek watersheds, and final design for safety and operational improvements for 3 miles of rural arterial with sidehill viaduct. SR 90, I-10 to Kartchner Caverns State Park Project Management, Arizona Provided project management for the final design of 15 kilometers of widening from two lanes to a four-lane divided arterial including detailed hydraulic analysis and design for 99 culvert crossings. SR 69, Poland Junction-Humboldt, Yavapai County, Arizona Construction plans, cost and quantity estimates, and special provisions for the construction of three miles of four-lane divided highway and frontage roads. The project was designed for the Arizona Department of Transportation and included a number of significant drainage structures and erosion control features. U.S. 180, Jct. B-40 to Columbus, Flagstaff, Arizona EEC provided the design of pavement widening and reconstruction of curbs, sidewalks, relocation of existing utilities, and design of a major storm-sewer system through an inter-governmental agreement between ADOT and the City of Flagstaff. The project was a fast-track design using partnering techniques and extensive public involvement to allow design and construction to be completed in 12 months.