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I-5: Siskiyou Wildlife Crossings

Design Phase

Region 3: Southwestern Oregon (Jackson)

​​​​​​​​​​​​​This project examines opportunities to bridge over or under Interstate 5 to reduce wildlife strikes​.


Traffic Impact

​To be announced.

Construction Impacts

​Possible single-lane traffic in one or both directions to construct the animal overcrossing.

Meetings and Events

​To be announced. See the video by the coalition in the link below.


​Estimated 2025 construction year



​ODOT is currently working with the Southern Oregon Wildlife Crossing Coalition and other partners to scope, design and implement crossings across or under I-5 through the Siskiyous betweeen Ashland and the California border.

The following I-5 locations have been under study for possible bridge crossings:  

  • MP 1.6 connecting the Mariposa Preserve
  • MP 2.7 Bear Gulch
  • MP 8.7 Barrron Creek
  • Undercrossings at MP 6/Old Siskiyou Hwy and Neil Creek/MP 10.3

Of those candidates, it appears the priority based on funding and constructability will be near MP 1.6 Mariposa Preserve.

As noted by the SOWSCC: There is a greater chance of preserving biodiversity and promoting healthy wildlife populations through conserving passages between habitat types. These less developed lands provide essential habitat and valuable connectivity through the region.​


I-5 |

​Interstate 5, south of Ashland to the California border

Cost and Funding

​To be announced, although $3.5 million is set aside for planning and design. Estimated cost of the bridge is about $20 million. 

It is currently unfunded but ODOT and the Siskiyou Wildlife Crossing Coalition are seeking avenues for construction funds. 


​To be announced


This project's goal is to reduce animal strikes and deaths of various animals such as black bear, deer, elk and other animal species. Aside from killing these animals, strikes are also a hazard to drivers and their passengers as well as causing millions of dollars in medical claims and property damage.

The estimated average collision cost is about $9,000 for deer and $24,000 for an elk. 

What Problem Will This Improve?

​​​Wildlife strikes by vehicles can be reduced allowing corridors for wildlife to cross either under or over highways, particularly interstates.  The goal is to bridge the fragmented traditional wildlife corridors.

Additional Information


ODOT GIS on Animal Collisions 2010-2016.jpg

​Artist's conception:


Contacts & Media


View on YouTube

Image Gallery

Project Contacts

Project Leader
Dan Roberts

Public Information Officer
Dan Latham

Last Updated

7/8/2024 10:46 AM

Project Number


Project Documents

Related documents to this project
SOR_WildlifeCoalitionPresentation2RVACT_Jan2022.pdfSouthern Oregon Wildlife Coalition Presentation to the Rogue Valley Area Commission on Transportaton from January 2023