2. 2
Meeting Agenda
6:00 – 6:30 Visit Stations
6:30 – 7:00 Presentation
7:00 – 7:30 Group Session
(Fill out Workbooks)
7:30 – 8:00 Comment on Cross Sections and
Intersection Treatment
3. 3
Presentation Outline
Project Recap
Review of Concept Development Process
3 Most Promising Alternatives
Technical Evaluation of Alternatives
Streetscape Sections
Intersection Treatment Options
Next Steps
6. Project Purpose
Address corridor congestion and safety problems
Serve future north-south traffic
Serve expected population growth in the area
– Damascus
– Happy Valley
– Pleasant Valley Plan area
– Gresham
Serve the growing demand for regional travel
12. 8.1 – Transportation Analysis of Alternatives
Based on Metro’s current
2035 land use
assumptions.
Operations with new
Metro assumptions are
expected to be better
Range forecasts to be
performed in conjunction
with the Preferred Build
Alternative
13. 8.1 – Transportation Analysis of Alternatives
Concept Roadway Required
Cross Section
AT2, AT6 172nd -190th Corridor 5 Lanes
AS10a 172nd Ave 3 Lanes*
AS10a Foster-190th Corridor 5 Lanes
All 172nd Ave (North of 172nd- 3-5 Lanes
190th Connector)
All Hemrick Rd 3 Lanes
All Cheldelin Rd 3 Lanes
* 5 lanes near Sunnyside Road
21. Preliminary Cost Estimates
Total costs (Public Project Scenario)
– AT2 - $156 Million
– AT6 - $154 Million
– AS10a - $138 Million
Public costs likely less due to development related right-of-
way dedications and roadway construction.
22. 22
Technical Evaluation Results
EVALUATION CRITERIA AT2 AT6 AS10A
Vehicular Mobility +1.5 +1.5 +1.5
Multi-Modal Mobility +1 +1 +1
Local Access +0.5 +0.5 +0.5
Multi-Modal Safety +1 +1 +1.67
Impacts to Natural Environment +0.33 -0.67 +1.33
Impacts to Built Environment -0.67 -1.33 -0.33
Land Use Compatibility +1.5 -0.5 +1
Flexibility of Implementation +0.5 0 +0.5
Cost 0 0 +1
Aesthetic Character +0.33 +2 -0.33
Environmental Enhancement 0 0 0
Maintenance +0.5 +0.5 +0.5
Functionality +2 +2 +1.5
TOTAL SCORE 8.49 6.00 9.84
23. Initial Consultant Team Recommendations
Alternative AS10a
– Meets the Purpose and Need
– Scores above the other alternatives based on the goals, objectives, and
evaluation criteria
– Lowest cost of the 3 most promising alternatives
– Highest approval rating from public participants to date
Things to Consider
– Need to construct 5-lanes on Foster within the horizon year
- Dependent on Widening of 190th Drive and Extension of 187th
28. 28
Initial Project Team Recommendation
Use roundabouts where feasible.
– Safety Benefits
– Environmental
Benefits
– Pedestrian
Friendly
– Access
Management
– Aesthetics
29. 29
Upcoming Meetings
Virtual Open House (Open until 7/22)
Project Advisory Committee Meeting (7/27)
Clackamas Transportation Advisory Committee Meeting
(8/23)
Project Management Team Meeting (8/4)
Final selection of Preferred Build Alternative
30. 30
Upcoming Public Hearings
Winter 2011/12
– Damascus Planning Commission
– Happy Valley Planning Commission
– Damascus City Council
– Happy Valley City Council
– Board of County Commissioners
31. Let’s Get Your Input
Review Posters for Alignment Concepts
– Future Land Use/Environmental Constraints
– Evaluation Scores
Use “Notes” Section of Your Handout to Provide
Feedback
Today’s Goals are to:
1) Select the Preferred Build Alternative
2) Provide Suggested Refinements to the
Preferred Build Alternative