| Letting Date | Project Number | PC# | Project Location | Description | Available Documents | Contact |
| 4/24/2026 | 000p-151, 000n-151, 000p-152, 000n-152 | i84Y, i850, i851, i852 | Brown County | Brown County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/24/2026 | 000p-151, 000n-151 | i853, i854 | Day County | Day County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/24/2026 | 000p-152, 000n-152 | i855, i856 | Edmunds County | Edmunds County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/24/2026 | 000p-152, 000n-152 | i857, i858 | Faulk County | Faulk County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/24/2026 | 000n-151 | i859 | Marshall County | Marshall County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/24/2026 | 000n-152, 000n-371 | i85A, i85C | McPherson County | McPherson County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/23/2026 | 000p-191, 000n-191 | i85D, i85E | Beadle County | Beadle County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/23/2026 | 000p-192, 000n-192 | i85F, i85G | Buffalo, Hand, Hughes, Hyde Counties | Buffalo, Hand, Hughes, Hyde County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/23/2026 | 000p-191, 000n-191 | i85H, i85J | Clark County | Clark County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/23/2026 | 000p-191, 000n-191 | i85K, i85L | Kingsbury County | Kingsbury County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/23/2026 | 000p-192, 000n-192, 000p-151, 000n-151 | i85M, i85N, i85P, i85Q | Spink County | Spink County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/22/2026 | 000i-171, 000p-171, 000n-171 | i83Q, i83R, i83T | Brookings County | Brookings County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/22/2026 | 000i-172, 000p-172, 000n-172 | i847, i848, i849 | Roberts County | Roberts County Weed Spraying | Proposal
| Mike Welch
605-626-2244 |
| 4/22/2026 | 000i-171, 000i-172 | i84W, i84X | Deuel, Moody, & Roberts Counties | Vegetation Management of Pollinator Plots along I-29. | Proposal
| Mike Welch
605-626-2244 |
| 4/21/2026 | 0009-168 | i83N | Watertown Area (Brookings, Codington, Deuel, Grant, Hamlin, Moody, Roberts counties) | Bridge Deck Sweeping | Proposal
Plans
Prospective Bidders List
| Mike Welch
605-626-2244 |
| 4/9/2026 | 000P-169 | i80Q | US 12 & US 281 in Brown & Spink Counties | Replace Luminaire Poles | Proposal
Plans
Prospective Bidders List
Addendum 1
| Mike Welch
605-626-2244 |
| Letting Date | Project Number | PC# | Project Location | Description | Available Documents | Contact |
| 4/7/2026 | 029N-291 | I83P | I29 from MRM 9.51 to MRM 14.53 in the Yankton Area - Union County | CRC Pavement Repair (Yan Area) | Proposal
Plans
Prospective Bidders List
Addendum 1
Apparent Low Bidders
| Monte D Rice
650-995-3302 |
| 3/17/2026 | 000I-271 | I80R, I80T & I80U | Along I29, I90 & I229 Looping Sioux Falls - Minnehaha & Lincoln Counties | Mowing (SF Loop - 3 Year Contract) (SF Area) | Proposal
Plans
Prospective Bidders List
Apparent Low Bidders
| Monte D Rice
605-995-3302 |
| Letting Date | Project Number | PC# | Project Location | Description | Available Documents | Contact |
| 3/26/2026 | 000N-371, 000P-371, 000N-372 & 000P-372 | i81L, i81M, i81N & i81P | Campbell, Corson, Dewey, Edmunds, Walworth & Ziebach Counties | Contract Spraying of Noxious Weeds – Mobridge Area Units 371 & 372 | Proposal
Plans
Prospective Bidders List
Apparent Low Bidders
| Shelley M Larson
605-773-3464 |
| 3/26/2026 | 000N-352 & 000P-352 | i81F & i81G | Stanley, Jackson, Haakon & Ziebach Counties | Contract Spraying of Noxious Weeds - Pierre Area (Unit 352) | Proposal
Plans
Prospective Bidders List
Apparent Low Bidders
| Shelley M Larson
605-773-3464 |
| 3/26/2026 | 3751C | i80L | Campbell County | Type 1B Aggregate Stockpile - Herreid Stockpile Site | Proposal
Plans
Prospective Bidders List
Apparent Low Bidders
| Shelley M Larson
605-773-3464 |
| 3/26/2026 | 000N-351 & 000P-351 | i81E & i81D | Hughes, Hyde, & Sully Counties | Contract Spraying of Noxious Weeds - Pierre Area (Unit 351) Shop 354 | Proposal
Plans
Prospective Bidders List
Apparent Low Bidders
| Shelley M Larson
605-773-3464 |
| 3/26/2026 | 000N-351 & 000P-351 | i81C & i81A | Stanley & Lyman Counties | Contract spraying of Noxious Weeds - Pierre Area (Unit 351) Shop 355 | Proposal
Plans
Prospective Bidders List
Apparent Low Bidders
| Shelley M Larson
605-773-3464 |
| Letting Date | Project Number | PC# | Project Location | Description | Available Documents | Contact |
| 3/31/2026 | 000P-492 & 000N-492 | i865 & i866 | Oglala Lakota County | Control growth of declared weeds in Oglala Lakota County, SDDOT Right-Of-Way | Proposal
Prospective Bidders List
Apparent Low Bidders
| John Rehorst
605-394-1951 |
| 3/31/2026 | 000P-491, 000N-491, 000P-492 & 000N-492 | i862, i861. i864 & i863 | Custer County | Control growth of declared weeds in Custer County, SDDOT Right-Of-Way | Proposal
Prospective Bidders List
Apparent Low Bidders
| John Rehorst
605-394-1951 |
| 3/31/2026 | 000P-472 & 000N-472 | i85y & i860 | Perkins County | Control growth of declared weeds in Perkins County, SDDOT Right-Of-Way | Proposal
Prospective Bidders List
Apparent Low Bidders
| John Rehorst
605-394-1951 |
| 3/31/2026 | 000P-471, 000N-471 & 000N-472 | i85t, i85u & i85v | Harding County | Control growth of declared weeds in Harding County, SDDOT Right-Of-Way | Proposal
Prospective Bidders List
Apparent Low Bidders
| John Rehorstq
605-394-1951 |
| 3/31/2026 | 000P-471 & 000N-471 | i85w & i85x | Butte County | Control growth of declared weeds in Butte County, SDDOT Right-Of-Way | Proposal
Prospective Bidders List
Apparent Low Bidders
| John Rehorst
605-394-1951 |