South Dakota Bridge Improvement Grant 2027

Funding$15 million total available for the 2027 BIG cycle. BIG may fund up to 80% of eligible authorized work; the local public agency is responsible for at least 20% of eligible costs and 100% of ineligible costs. Minimum anticipated grant expenditure: $30,000 for Preservation and $100,000 for Rehabilitation/Replacement. Generally no more than $8 million in total BIG funds to one LPA in any consecutive three-year period unless the BIG share of a single structure exceeds that amount.

DeadlineJanuary 2, 2027 at midnight Central Time for Preservation, Rehabilitation, and Replacement applications.

Last verifiedSeptember 13, 2026

Required next actionEligible South Dakota counties, cities, and towns should confirm bridge and LPA eligibility, complete the current BIG application and Appendix G checklist, coordinate required engineering, and submit the complete bridge-specific PDF through the SDDOT secure file transfer process with the required accompanying email by January 2, 2027 at midnight Central Time. No N9+ or QC Healthcare outreach is justified.

Broad Eligibility

Eligible local public agencies owning qualifying bridges. City and town owned bridges may qualify. County owned bridges must be included in an SDDOT approved County Highway and Bridge Improvement Plan and the county must impose a wheel tax. Bridges owned by private parties, development groups, federal agencies, state agencies, or Tribes are not eligible.

Atlas Analysis

Atlas Opportunity Score 64/100. N9+ Fit 0/100. QC Healthcare Fit 0/100. Direct Dr. Miltie fit 0/100. Strong state infrastructure funding with a $15 million 2027 pool and defined 80/20 cost share, but the allowable scope is bridge preservation, rehabilitation, replacement, and related engineering rather than healthcare technology or clinical services. Publication and monitoring only; no fit forced.

The South Dakota Department of Transportation administers the Bridge Improvement Grant (BIG) program for eligible local public agency bridges. For the 2027 cycle, SDDOT states that $15 million is available across the BIG program, consisting of $7 million from the statutory BIG fund plus $8 million in state funds.

The current 2027 Preservation and Rehabilitation/Replacement round is open. Complete applications for Preservation, Rehabilitation, and Replacement grants are due January 2, 2027 at midnight Central Time. SDDOT plans to award those grants in spring 2027.

BIG may fund up to 80% of eligible authorized work, and the local public agency is responsible for a minimum 20% local share plus 100% of ineligible costs. Anticipated grant expenditures must be at least $30,000 for Preservation projects and at least $100,000 for Rehabilitation or Replacement projects. In any consecutive three-year period, an LPA generally may not receive more than $8 million in total BIG funds unless the BIG portion of a single structure exceeds that amount.

City and town owned bridges may be eligible. County owned bridges must be listed in the county’s SDDOT approved Highway and Bridge Improvement Plan and the county must impose a wheel tax. Bridges owned by private parties, development groups, federal agencies, state agencies, or Tribes are not eligible. Complete applications must be submitted through SDDOT’s secure file transfer process with the required accompanying email and one PDF per bridge, following the applicable Appendix G checklist and current BIG procedures.

Atlas assessment: Atlas Opportunity Score 64/100. N9+ Fit Score 0/100. QC Healthcare Fit 0/100. Direct Dr. Miltie fit 0/100. This is a large, well-defined state infrastructure grant, but the verified scope is bridge preservation, rehabilitation, and replacement. No legitimate role for the Nonagon N9+ device and platform or QC Healthcare was identified, so Atlas is publishing and monitoring the opportunity without outreach.

Source verificationOfficial government source · dot.sd.govAtlas last verified this record September 13, 2026. Always use the funder's current application materials, amendments and portal instructions as the controlling source.View source and application materials ↗