Harrisburg OR Plant

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Knife River specializes in high-strength, super-performing concrete products, from architectural features in various colors and textures to custom bridge options, railroad bridges, and graphic content patented technology that creates images on concrete. View our featured products here.

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Worker in high-visibility clothing stands on railway track inside a brightly lit rail manufacturing facility at night.

Featured Products

Knife River Prestress is a PCI certified producer that specializes in Architectural, Bridge/Transportation and Commercial Precast/Prestressed products. Below are common shapes produced out of our plant in Harrisburg, Oregon. Additional modified sections and different product lines available by request.

Insulated Wall Panel

Spandrel

Stylized silhouette of a four-legged table with a horizontal top edge.

Double Tee

Black slab with two circular voids illustrating a voided-solid slab design.

Voided-Solid Slabs

Bold black uppercase serif letterform T on a white background.

Bulb T

A black segmented ring divided into six equal arcs, representing an architectural product component.

Architectural Products

Deck Bulb Tee

A black rectangular frame with a white cutout center, resembling a SIM card tray or photo frame.

Box Beam

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