Interchange Improvements at I-580 at International Parkway/Patterson Pass Road


SCH Number
Lead Agency
Caltrans, District 6 - Fresno/Bakersfield (California Department of Transportation, District 6)
Document Title
Interchange Improvements at I-580 at International Parkway/Patterson Pass Road
Document Type
MND - Mitigated Negative Declaration
Project Applicant
Present Land Use
Agriculture, Office/Industrial, Commercial

Document Description
The City of Tracy, in coordination with Caltrans, proposes to improve the interchange at Interstate 1-580 at International Parkway/Patterson Pass Road between postmiles 12.6 and 14.3 near the City of Tracy in San Joaquin County, California. The existing compact diamond (Type L-1) interchange would be converted into a diverging diamond interchange (DOI).

Contact Information
Jennifer Lugo
855 M Street, Suite 200
Fresno, CA 93721

Phone : (559) 445-6172


San Joaquin
Cross Streets
I-205, Mountain House Parkway, International Parkway
Total Acres
Parcel #
State Highways
I-205, I-580
California Aqueduct, Delta-Mendota Canal
Other Location Info
See coordinates for full details.

Notice of Completion

Review Period Start
Review Period End
Development Type
Transportation (Interchange Improvements)
Local Action
Interchange Improvements
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Flood Plain/Flooding Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
California Air Resources Board California Department of Conservation California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Fish and Wildlife, North Central Region 2 California Department of Forestry and Fire Protection California Department of Parks and Recreation California Department of Transportation, District 10 California Department of Water Resources California Governor's Office of Emergency Services California Highway Patrol California Natural Resources Agency California Regional Water Quality Control Board, Central Valley Fresno Region 5 California San Joaquin River Conservancy California State Lands Commission Central Valley Flood Protection Board Delta Protection Commission Delta Stewardship Council Department of Toxic Substances Control Office of Historic Preservation State Water Resources Control Board, Division of Water Quality State Water Resources Control Board, Division of Water Rights California Native American Heritage Commission


Environmental Document
I-580-IntlPkwy-PattPass_IS-MND   PDF 3186 K Summary Form   PDF 85 K
NOC   PDF 871 K
State Comments
2020079002_NAHC Comment   PDF 245 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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