Declines provide critical mine access to underground workings by creating an angled ramp instead of a vertical shaft. Miller specializes in delivering decline construction and rehabilitation services that meet rigorous safety and operational standards. Our approach enables efficient mine entry, equipment transport, and operational flow while effectively managing complex ground conditions that can challenge other contractors.
Miller engineers declines that provide more than just mine access points; they’re vital mine entryways designed for your mine’s specific geology, depth, and operational requirements. By expertly addressing stress points and water management, our custom decline designs significantly enhance durability and minimize maintenance. This precision results in fewer repairs, lower operational costs, and a consistently reliable mine access point throughout your mine’s entire lifecycle.
Miller’s experience ensures declines enable direct drive access for personnel and heavy equipment, simplifying movement compared to vertical shafts. This design supports faster and safer equipment movement by allowing large machinery to drive directly into underground mine production areas without disassembly. This reduces handling time and the risk of damage, improving site safety and operational efficiency.
Miller manages every phase of decline construction under one contract, integrating civil, mechanical, and engineering expertise. Our full turn-key delivery covers everything from initial decline design and geotechnical surveys through excavation, lining, and commissioning. This coordinated effort eliminates subcontractor delays, reduces scheduling risks, and strengthens quality control.
Leveraging ownership of specialized equipment and experienced teams, Miller provides comprehensive ground control capabilities. We continuously monitor geological conditions and adapt excavation and shoring methods to safely manage unstable ground. Our approach prioritizes regulatory compliance, meeting or exceeding MSHA and state safety standards to ensure swift decline completion and faster, more reliable access to ore bodies and production zones.
“Amazing experience i love it a lot. Thanks to the team that dreams come true, great! I really
appreciate there approach, recommend to everyone”
Lassy Chester, Invision
“Amazing experience i love it a lot. Thanks to the team that dreams come true, great! I really
appreciate there approach, recommend to everyone”
Lassy Chester, Invision
Project Scope:
Location:
Kentucky
Completed:
August 2023
Project Scope:
Decline Slope Rehabilitation, Excavation, Ground Control
At Miller Contracting, we deliver true turn-key mining and civil contracting solutions. We handle every phase of your project, from design and engineering to fabrication and installation, all within our own operations facility. This integrated approach sets us apart from other contractors and ensures practical, buildable designs informed by real-world field experience.
Safety is central to everything we do, driving a culture that achieves a 99.9 percent on-time completion rate and a strong 80 percent repeat customer rate. Our ownership of specialized equipment and full integration of turn-key mining solutions, allow us to reduce risk and simplify project management.
While most firms focus on only one sub-set of services, at Miller, we manage the entire process from start to finish as your single source accountable.
Miller delivers expert decline excavation, slope rehabilitation, and ground control services to enhance mine access, safety, and production.
A mine decline is an inclined tunnel or slope providing mine access from the surface to underground workings, typically large enough for vehicles and large equipment to be driven through.
Mine declines allow heavy equipment and materials to be transported directly by driving rather than lowering in pieces, which simplifies logistics, reduces handling risks and saves time on transport.
Decline slopes vary depending on mine design but typically have grades between 8% and 15% and widths sufficient to allow safe passage of mining equipment and vehicles, often 16 to 20 feet or wider.
Unstable roof strata, water inflows, and stratigraphic transitions can present challenges when building mine access points. Miller addresses these through expert geotechnical analysis and ground control methods.
Project duration depends on slope length, geology, and site conditions. Miller would need to survey the build site and ground conditions before providing an estimate.
Yes. Miller specializes in both new decline construction and decline rehabilitation to extend lifecycle and improve access.
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