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Project-Details



I-5: Southern Oregon Wildlife Overcrossing

Design Phase

Region 3: Southwestern Oregon (Jackson)


​​​​​​​​​​​​​​​​​​​​​​​This project will create a crossing over Interstate 5 in the Cascade-Siskiyou National Monument to reduce wildlife-vehicle collisions.


Impacts

Traffic Impact

Single-lane traffic in one or both directions during construction. Rolling slowdowns may also be used during some phases.​

Construction Impacts

Construction will cause some traffic delays.

Meetings and Events

​To be announced. 

Schedule

Construction is scheduled to begin in 2028.

Details

About

A Federal Highway Administration (FHWA) grant for $33,200,100 was announced in Dec. 2024 and funding was released in June 2026. The grant award will allow ODOT to construct a wildlife crossing over Interstate 5 in southern Oregon in the Cascade-Siskiyou National Monument. This will be the first wildlife overcrossing for Oregon and for the entire stretch of I-5 between Mexico and Canada. 

The project team reviewed multiple I-5 locations for possible sites for a wildlife crossing. The Mariposa Preserve at milepost 1.7 was identified as a priority based on need, funding and constructability.​

Location

I-5 |

​Interstate 5 near milepost 1.7, just north of the Oregon-California border.

Cost and Funding

$33,200,100 - FHWA grant award funding.

$3,799,900 - ODOT matching funds from an allocation to wildlife corridors by the Oregon legislature with the passage of House Bill 5202.

Total cost: $37 million.​


Contractor

​To be announced.


Benefits

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



​Artist's conception:

Videos

Contacts & Media

Videos


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Project Contacts

Transportation Project Manager
Justin Shoemaker
Email
Justin.D.Shoemaker@odot.oregon.gov
Phone
541-200-5784

Public Information Officer - Media Contact
Julie Denney
Email
julie.denney@odot.oregon.gov
Phone
503-949-2366

Last Updated

6/16/2026 10:06 AM

Project Number

23100