Mesothelioma Lawyer Missouri: Asbestos Exposure at Shiras Station | Marquette, Michigan

Information for Workers, Families, and Former Employees

⚠️ URGENT: Missouri Asbestos Filing Deadline Warning

Missouri currently allows 5 years from the date of diagnosis to file an asbestos personal injury claim under Mo. Rev. Stat. § 516.120. That window may face new complications from pending legislation. HB1649, currently active in the Missouri legislature, would impose strict asbestos trust fund disclosure requirements for any case filed after August 28, 2026. If this bill becomes law, cases filed after that date could face procedural obstacles that reduce compensation or complicate claims.

The time to act is now — before August 28, 2026. Do not wait for symptoms to worsen, for a second opinion, or for “a better time.” Every month of delay is a month closer to a deadline that cannot be extended. If you or a family member worked at Shiras Station and has been diagnosed with mesothelioma, asbestosis, or asbestos-related lung cancer, contact a Missouri asbestos attorney today.

Work at Shiras Station? You May Have Legal Rights.

Workers at Shiras Station in Marquette, Michigan, may have been exposed to asbestos-containing materials without ever knowing it. Mesothelioma and other asbestos-related diseases take 10 to 40 years to appear after exposure. If you have been diagnosed with mesothelioma, asbestosis, or lung cancer — or if you are experiencing unexplained respiratory problems or chest pain — your work history at this facility may be directly relevant to that diagnosis.

Manufacturers of asbestos-containing materials and facility operators bear legal responsibility for worker exposures. Compensation may be available through Missouri mesothelioma settlements and asbestos bankruptcy trust funds — and in many cases, workers pursue both simultaneously.

Michigan workers and their families should know that neighboring Illinois and Missouri courts — including St. Louis City Circuit Court, Madison County, and St. Clair County — have historically accepted asbestos cases from workers throughout the Mississippi River and Great Lakes industrial corridor. Venue selection can significantly affect case outcomes. Workers from the Upper Peninsula with exposure histories involving equipment manufacturers, insulators’ unions, or contractors with ties to the broader Midwest industrial region may have options beyond Michigan courts.

The August 28, 2026 legislative threat makes early consultation with a Missouri asbestos attorney critically important — even if you are uncertain whether your claim belongs in Missouri court.

Shiras Station: Operations and Why Asbestos-Containing Materials Were Used

The Facility

Shiras Station is a coal-fired power generating facility in Marquette, Michigan, operated by the City of Marquette as part of its municipal utility system. The plant sits on the shore of Lake Superior and has supplied electricity to residential, commercial, and industrial customers throughout the Marquette area for decades.

Municipal ownership changes the governance structure — it does not change the occupational hazards. The industrial processes, equipment, and construction materials at Shiras Station were substantially identical to coal-fired power plants built and operated across the United States during the same period, including Missouri and Illinois facilities such as AmerenUE’s Labadie Energy Center in Franklin County, Dairyland Power’s Alma plant, and the Portage des Sioux Power Station along the Mississippi River north of St. Louis. Workers who moved between Upper Peninsula facilities and Midwest power generation sites during the mid-twentieth century may have sustained cumulative exposures across multiple states — a work history that can strengthen claims filed under Missouri’s asbestos statute of limitations.

Why Power Plants Used Asbestos-Containing Materials

Shiras Station was constructed and expanded during the decades when asbestos-containing materials were the industry standard for insulation, fireproofing, and high-temperature applications throughout American power generation. Coal-fired plants built or substantially upgraded in the mid-twentieth century reportedly incorporated asbestos-containing materials into nearly every system involving heat, steam, or fire.

The operating conditions drove that reliance:

Boilers and steam systems operate above 1,000°F at pressures measured in hundreds of pounds per square inch
Asbestos fiber resists heat more effectively than any synthetic alternative available at the time
Asbestos-containing materials could be mixed into cement, woven into cloth, compressed into gaskets, and sprayed onto structural surfaces — adaptable to virtually any industrial application
Asbestos is non-combustible, which mattered in environments with continuous coal dust and high-temperature equipment
Raw asbestos fiber was inexpensive relative to alternatives
Use of asbestos-containing materials was actively reinforced by manufacturers, engineering firms, and industry trade associations as standard practice

Manufacturers whose asbestos-containing products may have been used at power plants during this era include Johns-Manville, Owens-Illinois, Armstrong World Industries, Combustion Engineering, Eagle-Picher Industries, Garlock Sealing Technologies, W.R. Grace, Georgia-Pacific, Celotex, and Crane Co.

Many of these companies subsequently filed for bankruptcy under the weight of asbestos personal injury claims. Those bankruptcies created asbestos trust funds — collectively holding billions of dollars designated for eligible claimants. Missouri residents, including workers who performed outage work or contractor assignments at Shiras Station, may file claims against multiple asbestos bankruptcy trusts simultaneously with any active civil lawsuit. That dual-track recovery option is a significant procedural advantage — and it is time-sensitive.

HB1649 would impose strict trust fund disclosure requirements on Missouri cases filed after August 28, 2026, potentially complicating the simultaneous pursuit of trust claims and civil litigation. Workers who delay past that date may face a significantly more complicated claims process.

Asbestos Exposure Across Multiple Trades at Shiras Station

Exposure Was Not Limited to One Job Title

Asbestos exposure at Shiras Station was not confined to a single trade. Power plant construction, operation, and maintenance placed workers across many occupations in contact with asbestos-containing materials on a regular — often daily — basis.

This applies to City of Marquette employees and to contractors, subcontractors, tradespeople, and maintenance personnel who performed work at the facility at any point during its operational history. Workers dispatched from union halls in Missouri and Illinois — including members of Heat and Frost Insulators Local 1 (St. Louis), UA Local 562 (plumbers and pipefitters, St. Louis), and Boilermakers Local 27 (St. Louis) — may have worked outages or construction projects at Upper Peninsula facilities during this era. Their exposure histories may support claims filed in Missouri or Illinois courts.

If you held union membership in any of these locals and worked at Shiras Station, speak with a toxic tort attorney specializing in asbestos cases before August 28, 2026.

Insulators

Insulators — called insulation workers or asbestos workers in the trade, including members of Heat and Frost Insulators Local 1 out of St. Louis and affiliated Midwest locals — faced the most direct and concentrated asbestos exposures of any trade at coal-fired power plants. They applied, removed, and replaced thermal insulation on boilers, pipes, turbines, and associated equipment.

The insulator trade was highly mobile during the peak decades of power plant construction. Members of Heat and Frost Insulators Local 1 and affiliated Midwest locals were dispatched to job sites across Michigan, Wisconsin, Illinois, and Missouri. An insulator who held membership in a St. Louis local may have worked seasonal outages at Shiras Station and sustained exposures that support claims in Missouri courts under Missouri law.

Insulators working at Shiras Station may have allegedly:

Mixed dry asbestos-containing cement powder, generating clouds of airborne fiber
Cut and shaped pipe insulation products such as Kaylo or Thermobestos
Applied asbestos-containing block insulation to boiler casings and turbine housings
Stripped deteriorating asbestos-containing insulation during maintenance and repair operations
Worked in enclosed mechanical spaces where airborne fiber concentrations could reach dangerous levels

The insulator trade has produced some of the highest rates of mesothelioma and asbestos-related lung disease of any American occupational category. A mesothelioma or asbestosis diagnosis is an immediate trigger for legal consultation. Missouri’s 5-year statute of limitations runs from the date of diagnosis — not the date of exposure. The August 28, 2026 legislative deadline adds urgency that cannot be overstated.

Pipefitters and Steamfitters

Pipefitters and steamfitters — including members of UA Local 562 (St. Louis) and other United Association locals with jurisdiction over Midwest power plant outages — worked the high-pressure steam systems at the operational core of any coal-fired plant. Their work reportedly brought them into repeated contact with asbestos-containing materials through:

Pipe insulation disturbance — cutting through, drilling around, or removing insulated pipe sections that allegedly contained asbestos-containing lagging and pipe covering manufactured by Johns-Manville, Owens-Illinois, and others
Gasket work — steam and water connections relied on asbestos-containing gaskets, sheet packing, and rope packing, including products manufactured by Garlock Sealing Technologies and Raybestos-Manhattan, that pipefitters regularly cut, trimmed, and installed
Valve work — asbestos-containing packing was standard in valves and expansion joints controlling steam flow throughout the facility
Bystander exposure — pipefitters frequently worked alongside insulators actively disturbing asbestos-containing insulation in shared, often confined, spaces

UA Local 562 members are known to have performed outage work at power plants across the greater Mississippi River industrial corridor, including Missouri facilities such as Labadie and Portage des Sioux. Workers with mixed exposure histories — some at Missouri plants, some at facilities like Shiras Station — may have viable Missouri asbestos claims. Do not wait until symptoms progress or until August 28, 2026 has passed.

Boilermakers

Boilermakers built, maintained, repaired, and inspected the steam boilers at the heart of the facility — including those manufactured or equipped with components by Combustion Engineering. Members of Boilermakers Local 27 (St. Louis) and affiliated locals were dispatched to power plant outages across the upper Midwest, and their work history may include assignments at Shiras Station or comparable Upper Peninsula facilities.

Boilermakers at Shiras Station may have reportedly:

Entered boiler drums and fireboxes during maintenance outages, working in enclosed spaces where asbestos-containing fiber concentrations could reach dangerous levels
Removed and replaced boiler refractory materials, gaskets, and casing insulation that may have contained asbestos-containing materials
Welded and cut metal in close proximity to asbestos-containing thermal insulation
Installed and repaired expansion joints, rope packing, and gasket materials that allegedly contained asbestos fibers, including products manufactured by Garlock Sealing Technologies
Worked alongside insulators during boiler overhauls, sustaining bystander exposure in confined spaces

Confined-space work concentrates airborne asbestos fibers that would otherwise disperse. Boilermaker exposures inside enclosed boiler interiors were among the highest-intensity exposures documented in power plant litigation nationwide — including cases tried in St. Louis City Circuit Court involving Midwest boilermakers with mixed-state exposure histories.

Boilermakers Local 27 members diagnosed with mesothelioma or asbestosis: Missouri law gives you 5 years from diagnosis to file. HB1649, if enacted, would impose new restrictions on cases filed after August 28, 2026. Call a Missouri mesothelioma lawyer today.

Electricians

Electricians at coal-fired power plants are sometimes overlooked as an at-risk trade — an oversight that has cost former workers and their families recoverable compensation. Several documented exposure pathways existed at facilities like Shiras Station:

Electrical panel and switchgear insulation — arc chutes, panel liners, and internal insulating components in older switchgear reportedly contained asbestos-containing materials manufactured by companies including Square D and Westinghouse
Wire and cable insulation — certain electrical cables manufactured before the 1980s incorporated asbestos-containing insulation that electricians cut, stripped, and routed through the facility
Conduit work in insulated spaces — electricians running conduit through pipe chases and mechanical rooms shared workspace with insulators and pipefitters working asbestos-containing materials nearby
Generator and transformer work — large rotating equipment and transformers at mid-century power plants incorporated asbestos-containing gaskets and insulating components that electricians handled during maintenance

Electricians who performed plant maintenance or outage work — including those dispatched from IBEW Local 1 (St. Louis) or