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Houghton Road, Central Segment: 22nd Street to Valencia Road
Phase 1 – Conceptual Design (30%)
The City of Tucson is beginning the design of roadway widening improvements on Houghton Road from 22nd Street to Valencia Road.
Work on the first phase of the design for this six-mile segment of Houghton Road is underway, and will produce a Design Concept Report and 30-percent preliminary plans. This first phase is expected to be complete in early 2008.
Recommendations for Houghton Road improvements will be based upon engineering and environmental considerations, as well as public information gathered during the Houghton Road Corridor Study and during the public outreach efforts being conducted throughout the design of the project.
Preliminary design work on Houghton Road, from 22nd Street to Valencia Road, will include a number of interesting items:
- Design of a six-lane, divided arterial roadway
- Recommendations to enhance existing intersections such as those at Old Spanish Trail, Golf Links Road, Escalante Road, Irvington Road, and Bilby Road
- Upgrading the Pantano Bridge to accommodate the wider roadway
- Development of a “greenway” linear park along the east side of Houghton Road
- Upgrade of drainage facilities throughout the project area
- Preservation of wildlife corridors
- Varying terrain
- Tucson Electric Power substation and large power lines near the roadway
- Proximity of homes and schools near the roadway
- Determination of a construction-phasing plan designed to match up priority locations for early construction with each year of Regional Transportation Authority funding as it becomes available
During the development of the Design Concept Report and plans, the following work is taking place:
- Review of prior reports and studies
- Collection of survey data of the existing conditions, and setting up survey control for the project design
- Aerial mapping of the existing conditions
- Mapping of the location of all utilities
- Beginning the Environmental Assessment and Mitigation Report process
- Geotechnical soil sampling for the pavement and bridge design work
- Preparation of a pavement design report
- Evaluation of existing drainage and proposed drainage conditions
- Recommendation of drainage design components and addressing of impacts to adjacent properties and drainage patterns as a result of widening the roadway
- Collection of existing traffic data, accident data, and developing the traffic forecasting models to determine future traffic conditions
- Evaluation of access management strategies, safety measures, and traffic control
- Evaluation of traffic control at the roadway intersections
- Preparation of a traffic design report
- Development of Pantano Wash bridge concepts
- Evaluation of available right of way
- Public involvement
- Preparation of Design Concept Report
- Coordination with the Houghton Road projects to the north and south of this project
- Consideration of priority construction locations, and development of construction phasing options
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