U.S. 20 Cascade Improvements (Sisters)
Reconstruction of Cascade Avenue Underway
Beginning Monday, March 3 a three block section of Cascade Avenue from Larch Street to Elm Street was closed to traffic to begin the reconstruction of Cascade Avenue and implementation of the downtown streetscape plan.
Through freight traffic will be required to use the Alternate Route of Barclay Drive and Locust Street. A temporary traffic signal at U.S. 20 and Barclay Drive was installed to help facilitate freight movements.
Passenger vehicles will be directed around the work area using Main (westbound traffic) and Hood Avenues (east bound traffic).
Downtown businesses will remain open during the reconstrution of Cascade Avenue.
Trucking Advisory and Detour Map
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|The following components are being proposed, with construction planned in 2013-14.|
In May 2010, ODOT maintenance crews filled in the ruts on Cascade Avenue between Pine and Larch Streets. This temporary measure will improve pedestrian safety by leveling off the payment in cross walks. Drivers will find it easier to make turns onto the sides streets and cross Cascade Avenue with the ruts filled in.
- Widen and reconstruct sidewalks, ADA ramps and curbing along Cascade Avenue;
- Improve crosswalk safety;
- Add streetscape features;
- Improve the storm water drainage system;
- Reconstruct Cascade Avenue;
- Widen the roadway width at the intersection of Barclay Drive and Locust Street;
- Repave Barclay Drive from Pine Street to Locust Street/Camp Polk Road;
- Construct a dedicated right hand turn lane for at the intersection of U.S. 20 and Locust to facilitate traffic using the Alternative Route; and
- Begin required access management review.
The project is located in the City of Sisters along Cascade Avenue (U.S. 20) between Pine Street and Locust Street.
|Why this project is needed|
U.S. 20 provides a connection across the Cascades Mountains between the growing communities of Central Oregon and the Willamette Valley’s major population centers. Thousands of trucks and passenger vehicles travel through the tourism based town of Sisters each day. U.S. 20 is both a main street that supports dozens of businesses and a major regional freight route. As a result, conflicts regularly arise between local and through traffic and pedestrians shopping and seeking entertainment within the scenic downtown corridor. Conflicts are particularly highlighted during the summer tourist season when several special events occur and both pedestrian activity and through traffic increase.
Narrow sidewalks in downtown Sisters, Oregon.
The pedestrian environment in the central business corridor of Sisters can be improved. Despite its orientation toward pedestrian activity, the area suffers from narrow sidewalks, worn crosswalks, outdated ADA ramps, poor pavement conditions, inadequate storm water drainage and deteriorating curbs that are beginning to create an unsafe and worn look that can negatively impact the downtown business environment.
|What the City of Sisters and the Oregon Department of Transportation plan to do|
This is a joint City of Sisters and ODOT project. The project will make improvements to U.S. 20 that will address pedestrian/motorist conflicts and improve the walk-ability of downtown Sisters. The intended result is to improve economic development within the community.
Rutting and cracking along Cascade Ave. in Sisters.
The following improvements are being proposed:
- Reconstruct sidewalks and increase sidewalk widths from six to eight feet, except between Oak and Pine Streets where the widths will be nine feet;
- Improve pedestrian crossings at intersections by building curb extensions, or “bulb outs”, with upgraded ADA ramps at Pine, Oak, Elm, Fir and Spruce Streets; this will reduce crossing distances and increase pedestrian visibility;
- Add streetscape features such as decorative lighting, benches and landscaping;
- Improve the storm water drainage system to eliminate flooding and standing water by adding drainage swales and Underground Injection Control (UIC) systems (for more information on UIC's and the permitting process, visit http://www.deq.state.or.us/wq/uic/uic.htm);
- Reconstruct Cascade Avenue from Pine Street to Larch Street;
- Grind out and repave Cascade Avenue from Larch Street to Locust Street; and
- Widen the roadway width at the intersection of Barclay Drive and Locust Street to facilitate freight turning movements.
The goal of the project is to help balance traffic mobility and pedestrian safety while providing a safe and inviting atmosphere for the local community and tourists. This should promote economic development and enhance livability in downtown Sisters.
| Downtown streetscape design
|| 2010 / 2011|
| Engineering design
|| 2011 / 2012|
| Right of Way acquisition
|| 2012 / 2013|
|| 2013 / 2014|
Construction Staging Timeline - January 2013
Materials from January 23, 2013 Business Community Meeting:
Summary of concerns and responses
Final Streetscape Plan - January 2013
Materials from October 17, 2012 Community Meeting:
Printable information paper and vicinity map last updated February 2012
Meeting Handout - Construction Staging Options - October 2012
Schedule for Construction Staging Options - October 2012
US 20 Cascade Improvements Community Meeting Flyer
Preliminary Construction and Traffic Staging Concepts - Spring 2012
Traffic Staging Maps
Summary Table of Options
Timeline for Staging Options
Final Cascade Avenue Streetscape Plan - December 2011
Materials from the August 2011 Community Workshop:
Community Preference Survey
Tree Concept Posters
Streetscape Elements Poster
Paver Options and Barclay Park Concept Posters
June 2011 exploratory drilling news release and map
Cascade Avenue Design Concepts, March 2011:
Ski Town Cascadia
Main Street Western Traditional
Community Workshop Flyer - March 15, 2011
City of Sisters Cascade Avenue Streetscape Ideas Report, December 2010:
Introduction, Sidewalks, Street Lighting & Suspended Elements - Pages 1-19 (6.7 MB)
Street Signage, Wayfinding, Furniture, Bicycle Parking, Tree + Shading, Landscaping & Irrigation - Pages 20-47 (16.4 MB)
Public Art, Safe Crossings & Green Streets - Pages 48-67 (12.0 MB)
Cases Studies - Pages 68-97 (15.0 MB)