Knife River Prestress Division

Knife River Prestress is a national and regional award-winning leader in the precast/prestressed concrete industry. Since 1958 we have produced a wide range of precast/ prestressed concrete products and associated support services. Main manufacturing facility is located in Harrisburg, Oregon and services Oregon, Washington, Idaho, Nevada, and California.


23505 Peoria Rd
PO Box 181
Harrisburg, OR 97446

T: 541.995.4100