Complete civil packages for utility solar near Hillsboro, IL: 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 Hillsboro in Montgomery County, Illinois. One contract covers clearing through final stabilization, with Backwell field leadership on site.
County seat on IL 16 with an east to west heavy haul route, roughly 15 miles from I-55 at Litchfield. Legacy underground mine workings under and around the city mean subsidence and abandoned mine mapping belongs in the due diligence for any site near town.
Publicly reported utility-scale solar in and around Montgomery 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.
Montgomery County sits on the Illinoian till plain at the south edge of the Springfield Plain, with broad loess-capped upland flats that break into rolling, dissected ground as you move toward Shoal Creek and the East Fork. Upland map units run to Herrick, Virden, Oconee, Cowden, and Piasa silt loams, all formed in loess over Illinoian till with slowly permeable subsoil, while Hickory soils occupy the steeper valley side slopes. Drainage moves west and south through Shoal Creek and East Fork Shoal Creek into the Kaskaskia, with Coffeen Lake and Lake Lou Yaeger as the two major impoundments. Much of the central county is undermined ground from a century of underground coal work around Hillsboro, Coffeen, Nokomis, and Witt.
The flats hold water and the subsoil is tight, so mass grading in spring and after summer storms is a mud problem, not a rock problem, and haul roads want geotextile and stone from day one rather than after the first rutting event. Collection trenching is easy digging in the loess but the trench acts as a French drain in claypan ground, so backfill compaction and trench plugs matter for long term settlement over cable. Erosion control has to assume high runoff coefficients and slow infiltration: size basins for extended detention, and expect that any cut exposing the clay B horizon will fight you on seeding.
Full detail on the Montgomery County market is on the Montgomery 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. Illinois does not issue a statewide general contractor, building, or civil sitework license. There is no state license to hold for commercial earthwork, grading, access roads, or site utilities on a solar project. Licensing for general construction is handled locally, so requirements come from the municipality or county where the work sits, and some counties require only a registration or a bond for work outside city limits. A few individual trades are licensed at the state level, including roofing through the Illinois Department of Financial and Professional Regulation and plumbing through the Illinois Department of Public Health, but those do not apply to sitework scope. The registration that does matter statewide is the Illinois Department of Labor public works contractor registration, which is required to bid or perform public works subject to the Illinois Prevailing Wage Act and is paired with monthly certified payroll filing. Contractors performing work in state highway right of way also need Illinois Department of Transportation prequalification and permits.
Construction stormwater. General NPDES Permit No. ILR10, Stormwater Discharges from Construction Site Activities, issued by the Illinois Environmental Protection Agency, Bureau of Water. The current permit was finalized September 13, 2023, took effect September 22, 2023, and expires August 31, 2028. Coverage is required for any construction site disturbing one or more acres, or a site under one acre that is part of a larger common plan of development or sale, which captures essentially every utility-scale solar site. A Stormwater Pollution Prevention Plan must be developed before construction starts, and a Notice of Intent must be submitted with enough lead time for a 30 day agency review period before construction begins. NOI fees are $700 for sites disturbing less than 5 acres and $1,000 for sites disturbing 5 or more acres. Many counties and municipalities, including several in the Chicago collar region, layer their own stormwater ordinance and permit on top of ILR10. 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 and apprenticeship requirements apply through the Inflation Reduction Act to projects of 1 MW AC and larger where the owner is claiming the full investment or production tax credit rate, and that flows down to civil subcontractors through the EPC contract. Illinois adds a second, independent state layer. The Illinois Prevailing Wage Act, 820 ILCS 130, sets county-by-county prevailing rates published by the Illinois Department of Labor, requires public works contractor registration, and requires monthly certified transcripts of payroll filed through the IDOL portal. The Climate and Equitable Jobs Act extended these labor standards into the private renewable market: payment of prevailing wage is required on essentially all non-residential wind and solar projects participating in state renewable energy credit programs, and utility-scale wind and solar projects are required to have a project labor agreement. In practice a bidder on Illinois utility-scale solar civil work should assume both Davis-Bacon and Illinois prevailing wage apply, that the higher of the two rates governs, and that a project labor agreement with the applicable building trades council will be a condition of award. 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 Illinois 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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