The project team has considered the feedback received at Public Workshop 4 and Project Advisory Committee Meeting 4 and chosen 3 alignment concepts for further review. Based on
their analysis of the 3
concepts, they recommended Concept AS10a as the Preferred Design Alternative at the July 20th Open House, as it scores highest in meeting the project evaluation criteria. However, that alternative relies heavily
on a proposed extension of Foster Road south to Highway 212 in the City of Damascus. Due to multiple factors, the timing and extent of this improvement has become more uncertain in recent weeks. Alternative AT2
has scored highly in all evaluations of project evaluation criteria and relies less heavily on this proposed connection by relying on SE 172nd Avenue as the primary north-south corridor. For this reason, the
project team now preliminarily recommends Alternative AT2, but acknowledges all the alternatives as viable.
Please click on the concepts below to take a closer look drawings, costs and impacts for each alternative and provide your input on which alternative should be chosen as the Preferred
Build Alternative.
» For more detail, please read Technical Memo 8.1and Technical Memo 8.2
Before you begin, you should read the evaluation critera: View the evaluation critera ↓
The project team has performed an initial, high-level assessment of all eighteen corridor alignment concepts using the following project evaluation criteria:
| CRITERIA |
CONSIDERATIONS |
|
Vehicular Mobility
|
- Provide an efficient north-south connection
- Accommodate vehicles entering from the east and west
|
|
Multi-Modal Mobility
|
- Enhance travel distance and comfort of pedestrians and bicyclists
- Provide connections to trails and other multi-modal facilities
- Minimize grade increases and decreases
|
|
Local Access
|
- Maintain or enhance access to neighborhoods, businesses, and public facilities
- Provide efficient access for future development
|
|
Multi-Modal Safety
|
- Improve safety and comfort for all users, especially non-auto travelers
- Improve emergency response time
- Provide flat terrain and intersections without skewed angles
|
|
Impacts to Natural Environment
|
- Minimize impacts to streams, wetlands, riparian areas, wildlife habitats, open spaces, and other natural resources
- Minimize stream crossings
- Minimize new pavement and encroachments on area buttes
|
|
Impacts to Built Environment
|
- Minimize right-of-way impacts on existing and future development
- Minimize socio-economic and cultural resource impacts
- Minimize noise/air impacts Minimize hazardous waste sites
|
|
Land Use Compatibility
|
- Provide consistency with plans and standards of Clackamas County, Damascus, Happy Valley, Gresham, Metro, and special districts
- Provide connections to proposed future retail and residential developments
|
|
Flexibility of Implementation
|
- Accommodate phased construction
- Accommodate expansion concurrent with development needs
|
|
Cost
|
- Provide positive economic benefits compared to costs
- Provide high overall value
|
|
Aesthetic Character
|
- Enhance potential visual character of the corridor
- Provide aesthetic elements such as landscaping
- Preserve the rural character of the corridor
|
|
Environmental Enhancement
|
- Minimize environmental impact of street footprint
- Provide green street features
|
|
Maintenance
|
- Minimize on-going maintenance and upkeep, including drainage systems, pavement, and landscaping
|
|
Functionality
|
- Effectively serve role as a major arterial
- Provide efficient movements for all travel modes
|
↑ Hide the evaluation criteria
AT2
AT6
AS10a