The details on Knife River Prestress Inc
- WA L&I registration
- KNIFERP751BS
- Registered as
- KNIFE RIVER PRESTRESS INC
- Registration checked
- September 14, 2026
- Registered since
- 2025
- Expires
- January 2027
- Contractor bond
- $30,000 · Liberty Mutual Ins Co
- Liability insurance
- $2,000,000 · Starr Indemnity & Liability In
- Insurance through
- January 2027
- Primary trade
- General Contractor
- L&I specialty
- GENERAL
- Registered principal
- Gray, Brian Robert · since 2025
- Registered principal
- Flanders, Stratos James · since 2025
- Registered principal
- LIEPITZ, KARL ANDREW · since 2025
- Registered principal
- CHRISTENSON, NANCY KAY · since 2025
- Service area
- Newman Lake
- Phone
- (509) 536-3300
- Website
- kniferiverprestress.com
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking Knife River Prestress Inc
Is Knife River Prestress Inc. a registered contractor?
Yes — Knife River Prestress Inc. holds Washington State (L&I) contractor registration KNIFERP751BS, expiring January 2027. We checked it against the state record on September 14, 2026; the same lookup takes you about a minute if you want to see it yourself. The same record shows a $30,000 contractor bond (Liberty Mutual Ins Co) and $2,000,000 of liability insurance with Starr Indemnity & Liability In through January 2027. Get current certificates for the bond and the insurance before anyone starts.
Does Knife River Prestress Inc. cover my part of Spokane?
Newman Lake is what they cover. A crew close to you is the one that comes back for a warranty call, so it is worth asking how far out they really travel.
Why is Knife River Prestress Inc. listed here?
Licensed, and working in Newman Lake. That is the bar for a page on this site, and Knife River Prestress Inc. clears it. The registration gets checked against the state's record and the date sits on this page, so you can judge how current it is. Knife River Prestress Inc. rates 4.0 out of 5 on Google across 20 reviews, and this page links straight to those reviews so you can read them for yourself.