Knife River acquires Spokane Washington Prestress Plant
Knife River Prestress now operates in two locations, Harrisburg Oregon and Spokane Washington
Our Product Divisions
See below for our areas of expertise.
ARCHITECTURAL
Versatile. Durable. Appealing. Architectural concrete provides unique design flexibility for your project, including a dramatic range of colors and textures.
BRIDGE
Our Bridge Division provides a range of design, fabrication and delivery options for almost any precast/prestressed bridge superstructure project.
RAILROAD
We have been designing, building and delivering bridge components for nearly 60 years.
STRUCTURAL
Knife River offers a variety of structural products and specializes in high-strength, high-performance concrete.
Why Use Precast?
160,000 S.F Product Erected in Just 15 Days…
The Quick Turnaround Project located at the Portland International Airport included (266) precast/prestressed 12′-0″ wide double Tees, (96) inverted tees beams. The project erected over (24) precast pieces per day.
Architect – Port of Portland
Engineer of Record – Port of Portland
Contractor – Hoffman Construction
Develop. Fabricate. Coordinate.
Together, we are BUILDING A STRONG AMERICA
Project Budgeting
Precast product takeoffs, preliminary budgeting, estimates and value engineering services
Design - Build
Experienced team of Precast design innovators that can bring customers visions to reality
Professional Engineering Staff
Full-service engineering support from precast concept to ribbon cutting
BIM Modeling
Complete precast component modeling compatible with construction models
Design Optimization
Versatile, Efficient and Resilient high performance precast concrete
Superior and Certified Quality
PCI certified precast craftsmen dedicated to high performance precast concrete
Featured Project
Providence Park Expansion – Portland Orgon






Architect – Allied Works Architecture
Engineer of Record – KPFF
Contractor – Turner Construction
The Providence Park expansion project is in the heart of downtown Northwest Portland Oregon. The stadium, originally constructed in 1925 is now home to two professional sports teams, the Portland Timbers and the Portland Thorns. The latest expansion to the stadium added 4,000 seats to the east grandstand using precast/prestressed concrete cantilevered raker beams, risers, walls and stairs.
Our Projects
We’ve tackled many unique construction projects. View photos of some of our projects and processes below.
Aloft Hotel
Aurora Tower
Beaverton Middle School
Harriet Power House
iFly SkyDiving
Junction City Hospital
Kaiser Sunnyside
Oakway MUB
Sandy High School
Waterplace
Get In Touch
We welcome you to contact us for more information about any of our products or services.
- 23505 Peoria Rd | Harrisburg, OR 97446
- [email protected]
- 541.995.4100