Knife River INC

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Interstate Concrete and Asphalt Company	Colville	Asphalt Paving Mixture and Block Manufacturing 324121	● ACTIVE	1.7 KM

Every listed plant in Stevens County

Also at this address

More than one federal record exists for this street address. The primary record for the site is listed first.

Interstate Concrete and Asphalt Company

Colville, WA

● ACTIVE324121

Where this record comes from

1 source holds this plant, and 5 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in ICIS, NPDES, TRIS, WA-FSIS · EPA site type STATIONARY.

• EPA Facility Registry ServiceEXISTENCE
  Record 110015554602 · first seen MAR 2026 · last seen MAR 2026

IN STEVENS COUNTY1 other plant shares this one’s industry (Petroleum and Coal Products Manufacturing, NAICS 3241); 0 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: KNIFE RIVER INC · NOV 2026

Street address

EPA: 485 SPANISH PRAIRIE RD · NOV 2026

City

EPA: COLVILLE · NOV 2026

State

EPA: WA · NOV 2026

Coordinates

EPA: 48.579248,-117.954097 · NOV 2026