Precast Concrete Products & Qualified Suppliers
Precast concrete manufacturing plants not shown or preceded by an asterisk (*) have no regular inspection by or for MnDOT. All costs of arranging for and providing inspection at plants without regular MnDOT inspection may be deducted from monies paid to the Contractor. See project Special Provisions.
Date of last revision: August 17, 2023
Prestressed Concrete Bridge Beams
| Manufacturer | Location |
|---|---|
| County Materials Corporation | Roberts, Wisconsin |
| Rinker Materials (formerly Forterra) | Elk River, Minnesota |
Precast Concrete Box Culverts
| Manufacturer | Location |
|---|---|
| Crest Precast Concrete | *La Crescent, Minnesota |
| Rinker Materials (formerly Forterra) | Elk River, Minnesota |
| Hancock Concrete Products | Cannon Falls, Minnesota Hancock, Minnesota |
| Wieser Concrete | Maiden Rock, Wisconsin |
Equipment Pads and Light Foundations
| Manufacturer | Location |
|---|---|
| Amcon Concrete Products | St. Cloud, Minnesota |
| Stoneworks Architectural Precast | Elk River, Minnesota |
| Brown Precast | **Lakeville, Minnesota |
** Light Foundations only.
Pipe and Manhole Plant Pre-Approval Program
| Manufacturer | Location |
|---|---|
| County Materials Corporation | Roberts, Wisconsin Marathon, Wisconsin (apron sections only) Holmen, Wisconsin (products mfd. after June 30, 2017) |
| Rinker Materials (formerly Forterra) | Elk River, Minnesota Hawley, Minnesota Stacy, Minnesota |
| Hancock Concrete Products | Cannon Falls, Minnesota Courtland, Minnesota Hancock, Minnesota |
| Amcon Concrete Products | St. Cloud, Minnesota |
| Wieser Precast Steps | Stewartville, Minnesota (manholes only) |
Noise Wall Systems
- See the Walls (retaining and noise) page for more information.
Noise Wall Posts (generic wood-faced noise barriers)
| Manufacturer | Location |
|---|---|
| Wieser Concrete | Maiden Rock, Wisconsin |
| Rinker Materials (formerly Forterra) | Elk River, Minnesota |
Three-Sided Precast Concrete Bridge Structures
- See the Bridge Products page for more information.
Drycast Walls (small block)
- See the Walls (retaining and noise) page for more information.
Mechanically Stabilized Earth (MSE) Walls (large block and wall panels)
- See Walls (retaining and noise) page for more information.
Precast Concrete Headwalls
| Manufacturer | Location |
|---|---|
| Horsmann Precast | Finlayson, Minnesota |
| Wieser Precast Steps | Stewartville, Minnesota |
| Stoneworks Architectural Precast | Elk River, Minnesota |