(abbreviated '''I-405''') in Oregon is a short loop route, also known as the '''Stadium Freeway''', that connects downtown
Portland west of the
Willamette River to Interstate 5. I-405 only travels through the city of Portland. It opened to traffic on Feb. 25, 1969. It contains an interchange intended for the cancelled
I-505 .
On its northern end, I-405 crosses the
Willamette River on the
Fremont Bridge . See
Interstate 5 .
Interstate 405 shares pavement with
U.S. Highway 30 from Exit 4 (Interstate 5) to Exit 3 (NW Industrial District). It intersects with
U.S. Highway 26 at Exit 1D.
The freeway was completed in
1973 when the
Fremont Bridge opened, completing the loop and linking I-405 to I-5 in North Portland.
