South Dakota
Special Inspections and Construction Testing
IBC Chapter 17 special inspections of concrete, steel, soils, masonry and other critical work on commercial projects.
What the work involves
The International Building Code requires special inspections and tests for many structural elements on commercial and some residential projects, performed by qualified inspectors independent of the contractor. Typical scopes include soils and foundations, reinforcing steel, concrete placement and cylinders, structural steel bolting and welding, masonry and post-installed anchors. The registered design professional prepares a statement of special inspections, and the inspection agency reports to the building official.
Local conditions we plan for
- Deep frost penetration
- Expansive clay soils (Pierre Shale)
- Riverine flooding
- Snow and wind loads
Building code: 2021 IBC/IRC adopted at the state level (ICC adoption chart, April 2026). A legislative summary reports adoption of the 2024 IBC and IRC effective July 1, 2026.
When you need it
- Commercial building permit lists required special inspections
- Structural steel, concrete or masonry construction
- Deep foundations or structural fill
- Seismic or wind force resisting systems
Frequently asked questions
How much does special Inspections and Construction Testing cost?
Across the US, special Inspections and Construction Testing usually costs $5,000 to $100,000. Estimate. Usually billed per visit or hour plus lab tests; cost scales with project size and duration.
How long does special Inspections and Construction Testing take?
Plan on Throughout construction from signed proposal to stamped deliverables, longer if a site visit, soil testing or a permit review cycle is involved.
Do I need a licensed PE for special Inspections and Construction Testing?
In most US jurisdictions, yes. When the work needs a permit, the plans, calculations or report usually must be sealed by a Professional Engineer licensed in the state where the project is located. Every deliverable we issue for permit is sealed that way.
How do I verify an engineer's license in South Dakota?
Engineers practicing in South Dakota are licensed by the South Dakota Board of Technical Professions.
Which building code applies in South Dakota?
2021 IBC/IRC adopted at the state level (ICC adoption chart, April 2026). A legislative summary reports adoption of the 2024 IBC and IRC effective July 1, 2026. Cities and counties can add local amendments, which is one reason to hire an engineer who works in your area.
What site problems do engineers see most in South Dakota?
Common issues include deep frost penetration, expansive clay soils (Pierre Shale), riverine flooding and snow and wind loads.