Complete civil packages for utility solar near Mexico, MO: clearing, mass grading, access roads, collection trenching, SWPPP, fencing, and substation civil.
Backwell contracts complete civil site work packages for utility solar EPCs building near Mexico in Audrain County, Missouri. One contract covers clearing through final stabilization, with Backwell field leadership on site.
County seat at the junction of US 54 and US 22 with an active freight rail line and industrial spurs left over from its refractory plants, which means real rail served industrial land. I-70 is about 25 miles south at Kingdom City.
Publicly reported utility-scale solar in and around Audrain County:
Project details come from public filings and reporting and are listed to show where the work is. Backwell is not affiliated with these projects or their developers.
Audrain is the heart of Missouri's Central Claypan region, a nearly level to gently sloping loess mantled till plain with almost no relief and no deep valleys. The dominant soils are the Mexico and Putnam series, both formed in loess over pedisediment, with a silt loam surface over a dense silty clay claypan that starts roughly 10 to 18 inches down and effectively stops water and roots; the Mexico series takes its name from the county seat. Adco and similar claypan soils occur on the flats and Armstrong type clayey till soils show on the few real side slopes. Drainage is sluggish headwater country for the Salt and Cuivre systems, mostly shallow swales and ditched field laterals, and the county's Cheltenham refractory clay made Mexico a firebrick center.
The claypan is the whole story. Water perches on it, so after any rain the top foot turns to grease while the material below stays hard, which kills scraper production and means you plan around drying windows or import rock for haul roads rather than fighting native subgrade. Clearing and grubbing is light on this open row crop ground, but mass grading needs to respect that cutting through the claypan changes local drainage, and cut areas become effectively impermeable. Trenching is easy digging in the silt but the clay will not compact wet, so backfill moisture control is a real cost item; erosion control leans on ditch checks, sediment basins with long detention, and flocculant, because the fines in this silt stay in suspension a long time.
Full detail on the Audrain County market is on the Audrain County solar civil page.
We price the package as one scope under one contract, so the EPC has a single point of responsibility for the civil critical path instead of managing separate clearing, earthwork, and utility subcontracts.
Backwell superintendents, project managers, and lead operators run every site. We mobilize company equipment for the core scope and scale each project with leased production fleets, qualified regional subcontractors, and agency-placed field staff, all under Backwell supervision and a single contract.
Contractor licensing. Missouri has no statewide general contractor license and no state commercial building license, so there is no single state card to pull for civil sitework. Licensing and registration are handled at the city and county level, and the requirements vary: larger jurisdictions such as Kansas City, the City of St. Louis, St. Louis County, and Springfield require local contractor registration or a business license, while many rural counties that host solar sites have no contractor licensing at all. What rural solar counties do require is land use approval, typically a conditional use permit or special use permit from the county commission or planning and zoning body, plus a road use or haul route agreement with the county highway department. Practical qualification for a solar EPC in Missouri therefore turns on insurance limits, experience modification rate, equipment fleet, and prequalification packets rather than a state license number.
Construction stormwater. Construction stormwater in Missouri is permitted by the Missouri Department of Natural Resources, Water Protection Program, through a Missouri State Operating Permit for land disturbance issued under the Construction or Land Disturbance Master General Stormwater Permit, permit number MORA00000. Coverage is required for any construction activity disturbing one acre or more, or disturbing less than one acre when it is part of a larger common plan of development or sale that will cumulatively disturb one acre or more. The core requirement is a Stormwater Pollution Prevention Plan, or SWPPP, with site specific best management practices to limit soil exposure, erosion, and pollutant discharge. Note that the MO-R100000 area wide land disturbance general permit is a different instrument, available only to a city, county, state or federal agency, or other governmental jurisdiction, and is not the permit a private solar project or its contractor uses. Source: https://dnr.mo.gov/water/construction-or-land-disturbance-master-general-stormwater-permit-mora00000 Backwell carries the SWPPP scope, installs and maintains the controls, keeps the inspection log, and closes the permit out with final stabilization.
Prevailing wage. Federal Davis-Bacon prevailing wage rates apply on their own terms through the Inflation Reduction Act: solar projects with a maximum net output of 1 MW AC or greater must pay Davis-Bacon prevailing wages to laborers and mechanics and meet apprenticeship labor hour and ratio requirements in order to claim the full value investment or production tax credit. Essentially every project on this list clears that 1 MW threshold, so certified payroll and apprenticeship tracking should be assumed on all of them. On top of the federal requirement, Missouri has its own state prevailing wage law under Chapter 290 of the Revised Statutes of Missouri, administered by the Missouri Department of Labor and Industrial Relations, Division of Labor Standards, which issues annual wage orders by county and occupational title. The state law reaches public works construction for a public body, so privately owned developer solar is generally outside it, but work for a municipal utility, a public power district, or any publicly owned or publicly funded portion of a project can trigger state prevailing wage and state certified payroll on top of the federal obligation. For projects claiming the full ITC or PTC, Backwell produces Davis-Bacon certified payroll, pays the applicable wage determination, and supports apprenticeship labor-hour compliance.
All Missouri solar civil work or the national utility solar civil page.
Send plans, a scope of work, and the schedule through the form below or call (315) 400-2654. We review the civil package, walk the site if it is at that stage, and return a scoped proposal with a schedule of values, stated fill allowances, and unit rates for overages. A one-page capability statement is available for prequalification files.
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