Sonoita Crossroads Community Forum

SR 83 MP 44 to MP 45.5

Proposed Safety Proposed Safety Improvements Improvements

presented by Annie McGreevy and ADOT Engineers

Project Background

• No. 1 Location For Motorcycle Accidents In The State.
• No 8. Location For Accidents.
• High Percentage Of Single Vehicle And Run Off The Road Accidents.
• Implies That Geometric Improvements Should Be Considered.

Project Overviews

Project Improvements:

• Two Locations:
  • Three Reverse Curves Just North Of Previous Shoulder Widening Project.
  • Curve At MP 45.
• Proposed Improvements:
  • Flatten Middle Curve (Has Twice the Sliding Force As Adjacent Curves).
  • Widen Shoulders To Extend Improvements From The South.

Three Reverse Curves

• Flatten Middle Curve
• Widen Shoulders

Curve at MP 45

• Widen Outside Shoulders

Project Impacts Project Impacts

• Regetate Slope with Native Seed Mix and Native Plants and Trees
• Replace Guardrail with CORTEN on Wood Posts
• Additional Shoulder Width (Benefits Bicyclists)
• Remove Transverse Rumble Strips South of the Project. (Benefits Bicyclists)

© 1999 - Sonoita Crossroads Community Forum