Engineered Concrete Products LLC
At a glance
Employees20-99
In business sinceNot reported
HeadquartersRapid City, SD
SAM.gov UEIK3RCWL84P5K4
Engineered Concrete Products, LLC manufactures precast concrete products including septic tanks, cisterns, oil-water-sand separators, box culverts, precast wall panels, and storm water inlets and junction boxes. The company produces these products in various sizes and configurations, including insulated and non-insulated wall panels ranging from 4 to 32 feet in height. The products serve wastewater management, water storage, and drainage infrastructure applications.
Summarized from the company’s own website
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Engineered Concrete Products LLC | Rapid City | SD | 20–99 | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.


