John Wesley Powell Boulevard Extension - East

Several ​constaints exist for this project.
One potential constraint is obtaining sufficient right-of-way for the roadway, bike lane, sidewalks, intersection area, and turn lanes, as well as sufficient area for any future expansion of the roadway. This challenge is due to the multiple property owners in the area who desire road access to their property, as well as those who may not. The roadway alignment will need to factor in these desires while still efficiently and safely traversing the area.

Another potential constraint is that the construction will disrupt wildlife movement in the project area, which creates dangerous situations for both wildlife and roadway users. This project will consult with the Arizona Game and Fish Department to create a wildlife corridor to allow safe animals movement through the project area. This will need to be done while protecting the safety of both wildlife and roadway users.  

Task 1.0: Obtain Existing Data
Existing data will be obtained before any assessment or analysis to better understand the existing conditions and to obtain a good understanding of the project from a data perspective

     Task 1.1: Topo/GIS Data

     Task 1.2: Land Ownership Data

     Task 1.3: Geotechnical Data

     Task 1.4: Traffic Projections

Task 6.0: Final Hydrologic and Hydraulic Analyses
This task considers design of required hydraulic structures for the roadway. 

     Task 6.1: Selection of Hydraulic Structures for Water Crossings

     Task 6.2: Design of Hydraulic Structures for Water Crossings

     Task 6.3: Final Hydrologic and Hydraulic Analyses

Task 7.0: Plan Set Development and Cost Estimate
This task considers design of required hydraulic structures for the roadway. 

     Task 7.1: Plan Set

     Task 7.2: Construction Cost Estimate

Task 2.0: Site Visit
A site visit will be conducted. Photos will be taken of important site conditions such as terrain features, steep slopes, eroded areas, signs of wildlife usage, fences, and widths of the Rio de Flag creek bed to better understanding the existing conditions. Site details, including any measurements taken, will be documented in a project log book. 

Task 8.0: Impacts of Project
Social, environmental, and economic impacts will be evaluated and discussed.

Task 3.0: Preliminary Traffic Assessment
Using data obtained from task 1.4, a traffic assessment will be conducted to determine future anticipated traffic volumes, peak hour directional trips, and turning volumes to determine required number of lanes and intersections. Traffic simulations will be run using Vissim software to determine this data while maintaining an acceptable level of service,. A Traffic Impact Analysis (TIA) will be conducted according to the COF and TIA manual to assess the conditions of the proposed roadway and identify preliminary traffic problems. 

Task 9.0: Deliverables
The deliverables for this project include all necessary documents given to all parties concerned.

     Task 9.1: 30% Submittal

     Task 9.2: 60% Submittal

     Task 9.3: 90% Submittal 

     Task 9.4: Final Submittal

Task 4.0: Hydrologic Analysis
This task consists of the details necessary to perform a hydrologic analysis. A hydrological analysis is necessary to assure that the new roadway is unaffected during extreme precipitation events, and to clearly identify where water crossings must be considered. 

     Task 4.1: Indenfitication of Watersheds and Determination of         Peak Flows

          Task 4.1.1: Delineate Watersheds

          Task 4.1.2: Determine Time of Concentration

          Task 4.1.3: Determine Peak Flows

     Task 4.2: Modeling

Task 10.0: Project Management
The project will be managed through the following subtasks.

     Task 10.1: Meetings

     Task 10.2: Schedule Managment

     Task 10.3: Resource Managmenent 

Task 5.0: Roadway Design
This task consists of the details of the roadway design. 

     Task 5.1: Base Map Development

     Task 5.2: Roadway Design

          Task 5.2.1: Determine Aligment

          Task 5.2.2: Intersection Design

          Task 5.2.3: Sidewalk Design

          Task 5.2.4: Signing and Striping Plan

          Task 5.2.5: Lighting Plan

     Task 5.3: Wildlife Mitigation Considerations

The table belows contains the projected staffing hours required for this project.
The hours are split between three positions, the senior engineer, engineer, 
and engineer-in-training (EIT).