Services - Transportation Engineering

	General Hitchcock Highway (Mt. Lemmon Highway, Arizona Forest Highway 39), Segment 7 Improvements Federal Highway Administration This roadway reconstruction project from milepost 11.2 to milepost 15.9 (7.6 kilometers) provides a wider, safer roadway with horizontal and vertical alignment modifications and extensive use of retaining walls for minimal impact on the rock formations that line the road. RSE's scope of work entailed the preparation of final design package, a centerline stakeout, a construction stakeout survey, design services during construction, landscape architecture and public relations. The project included three approach roads and six parking areas. The typical section is a width of 28 feet, a substantial improvement over the existing width of approximately 20 feet. Existing conditions addressed included narrow width with minimal shoulders, poor pavement condition, poor drainage, lack of sight distance, horizontal and vertical alignment that did not meet current criteria, and guardrail that did not meet current standards. Construction Cost: $14,000,000.
	General Hitchcock Highway (Mt. Lemmon Highway, Arizona Forest Highway 39), Segment 6 Improvements Federal Highway Administration This roadway reconstruction project provided improvements from milepost 9.6 to 11.2 (2.6 kilometers) and milepost 15.9 to 20.8 (7.9 kilometers). For this segment, RSE provided metrification, survey, emergency survey and design, retaining wall modification, public relations, landscape architecture, and post-design services. This project used the visual prioritization levels (VPL) system where ratings are used to prioritize landscaped areas to keep the roadway visually pleasing while keeping costs down. Construction Cost: $16,500,000.
	Apache-Sitgreaves National Forest and Lincoln National Forest Roads Analysis USDA Forest Service, Southwestern Region RSE performed a roads analysis and traffic study on the National Forest Systems Roads (NFSRs) in the Apache-Sitgreaves National Forest in east central Arizona and Lincoln National Forest in south central New Mexico. The work involved studies and field visits on approximately 166 miles of NFSRs and making recommendations to improve safety in respect to day and night time visibility, driving in both directions, and use patterns.
	SR 90 Improvements, Kartchner State Park to I-10 Arizona Department of Transportation A 9.5-mile highway improvements project in rural southern Arizona, the project entailed widening a two-lane roadway to a four-lane divided highway. Significant drainage improvements included more than 100 cross culverts. Construction Cost: $16,000,000.
	Pusch View Lane/First Avenue Extension over CDO Wash Town of Oro Valley This reconstruction and widening project included construction of a four-lane road, a four-lane bridge, and a new four-lane road connecting the bridge to an existing roadway. The project also provided a raised and landscaped median, multi-use lanes for transit and bicycle use, outside curbs, storm drains, sidewalk, and a multi-use trail. Construction Cost: $8,700,000.
	I-10, Ina Road to Prince Road Mainline Widening Arizona Department of Transportation RSE provided design surveys, hydrologic/hydraulic analysis, horizontal and vertical highway alignment design, pavement marking plans, cost estimates, specifications, and project management for the widening of six miles of interstate freeway from four lanes to six lanes. The project included widening 12 separate bridge structures, geotechnical investigation, traffic control and construction sequencing, and landscape design.
	Ajo Way Improvements, Country Club to Alvernon Way Pima County Department of Transportation This roadway improvement project included the widening of the existing Ajo Way to include two 12-foot lanes and one 14-foot lane. It also included sidewalk improvements, drainage facilities, storm drain improvements, roadway alignment, landscaping, and irrigation. Construction Cost: $6,800,000.
	Tanque Verde Road Improvements, Catalina Highway to Houghton Road Pima County Department of Transportation RSE provided civil engineering services to widen a 1.7-mile stretch of roadway from two lanes to five lanes. Services included: drainage reports, surveying, utility coordination, geotechnical investigation, traffic engineering report, cost estimates and specifications. Construction Cost: $10,303,750.
	Country Club Road Improvements, Milber Street to 36th Street Pima County Department of Transportation This roadway improvement project consisted of widening 1.5 miles of Country Club Road, to five lanes from Milber Street to Ajo Way, and to three lanes from Ajo Way to 36th Street. Other services RSE provided included: storm drain improvements, outside curb and sidewalk, cross drainage improvements, and a new bridge at the Tucson Diversion Channel. Estimated Construction Cost: $7,700,000.
	Oracle Road Improvement District Town of Oro Valley RSE was selected to provide civil engineering services for the widening of Oracle Road to a six-lane section, as well as provide additional turn lanes. RSE also provided services for the reconstruction of Pusch View lane to a five-lane roadway with drainage and grading improvements, traffic signals, and landscaping. Estimated Construction Cost: $900,000.
	First Avenue Improvements, CDO Wash to Tangerine Road Town of Oro Valley RSE provided services for the reconstruction of 1.5 miles of First Avenue into a four-lane divided roadway, with grading and drainage improvements, traffic signals and landscaping. Construction Cost: $10,400,000.
	Ina Road Widening, Silverbell Road to I-10 Town of Marana RSE reconstructed 1 mile of existing roadway on Ina Road to a 4-lane roadway, including 2 new bridges, drainage improvements, traffic signals, street lighting, artwork and landscaping. Construction cost: $13,500,000.
	Thornydale Road Improvements, Orange Grove Road to CDO Wash Town of Marana This project consisted of the reconstruction of Thornydale Road to widen the roadway to six lanes. Other services RSE provided for this project included: aerial surveys, drainage report, utility investigation, water/sewer modification and relocation, storm drain design, traffic signal design, landscape and irrigation, Stormwater Pollution Prevention Plan, and extending the Carmack box culvert. Estimated Construction Cost: $3,798,632.