About Riverside Power Plant
Riverside Generating Station sits along the Iowa River in Louisa County, Iowa, near the unincorporated community of Oakville — approximately 25 miles southeast of Iowa City and roughly 60 miles south of Cedar Rapids. The facility is a coal-fired steam electric generating station that has operated for decades as a major power source serving central and eastern Iowa.
Ownership history:
- Original operator: Iowa Power and Light Company (later Iowa Power)
- 1995 consolidation: Iowa Power merged with Iowa Public Service and Midwest Power Systems to form MidAmerican Energy Company
- Current parent company: MidAmerican Energy is a subsidiary of Berkshire Hathaway Energy
- Current status: MidAmerican Energy continues to own and operate the facility
The operational demands of coal-fired generation made Riverside a facility where asbestos-containing thermal insulation was reportedly ubiquitous from roughly the 1930s through the late 1980s:
- Extreme heat: Boilers operate above 1,000°F; superheated steam lines required effective thermal insulation
- Fire resistance: Asbestos resists combustion, making it the industry standard for insulating combustion chambers, flues, and structures near open flame
- Mechanical durability: Turbines, generators, and pumps generate constant vibration; asbestos-containing products were considered durable under those conditions
- Cost and availability: Through the mid-twentieth century, asbestos-containing insulation was inexpensive and routinely specified by utility engineers
Iowa Power and its successor MidAmerican Energy reportedly specified and purchased asbestos-containing materials for construction, maintenance, and repair at Riverside throughout the mid-to-late twentieth century.
General Equipment at Riverside Power Plant
The equipment below represents the systems and infrastructure documented or typically present at this facility during the era when asbestos-containing materials were specified in industrial construction. This is general facility-equipment reference — not a legal attribution of any specific product, manufacturer, or exposure event to this facility. Material-category and manufacturer information is addressed in the AsbestosIndex Product Crosswalk linked under the records table below.
Documented Asbestos Evidence — Iowa
The records below are verified, state-documented asbestos removals at this facility. Each entry represents a regulated abatement project where the Iowa Department of Natural Resources (Iowa DNR) was notified under federal NESHAP rules, the work was logged, and the asbestos-containing material was confirmed and removed under regulated conditions. These are not allegations or estimates — they are paper records tying documented asbestos-containing material to this specific site.
Material Categories in Documented Records
The materials documented above (and similar asbestos-containing materials commonly encountered in records of this type) appear in the AsbestosIndex catalog with historical manufacturer and trust-fund information. Click a category to view manufacturers historically associated with that material:
Who May Have Been Exposed at Riverside Power Plant
Insulators (Asbestos Workers Local 12) represented the occupational group at highest risk. Members of Asbestos Workers Local 12 — the Iowa-based local historically covering heat and frost insulation work across eastern and central Iowa — performed the most direct and intensive asbestos-related work at power plants like Riverside. Their work allegedly included: installing, maintaining, and removing thermal insulation from boilers, steam lines, turbine casings, and heat exchangers; cutting, shaping, and fitting asbestos pipe covering, block insulation, and pre-formed products; mixing and applying asbestos-containing insulating cements; and stripping aged and deteriorated asbestos-containing insulation during maintenance turnarounds.
Pipefitters and steamfitters (Pipefitters Local 33) may have been exposed to asbestos-containing materials through multiple pathways: working directly on steam piping systems in confined spaces where insulators were simultaneously disturbing asbestos-containing insulation; handling asbestos-containing gaskets allegedly manufactured by gaskets and packing and Flexitallic in flanged joint assembly and repair; using asbestos-containing valve packing during valve maintenance; and removing and replacing asbestos-containing pipe insulation incidental to pipefitting work on steam and condensate systems.
Boilermakers (Boilermakers Local 83) who performed installation, inspection, repair, and overhaul of boilers and pressure vessels at Riverside may have been exposed to asbestos-containing materials through working inside boiler fireboxes and furnaces where refractory materials and boiler insulation allegedly containing asbestos were present. During maintenance turnarounds, asbestos-containing insulation products were routinely cut away, disturbed, removed, and replaced, with workers from multiple trades working simultaneously in confined spaces where insulation dust settled on tools, clothing, and adjacent equipment.
Iowa — Filing Deadline & Next Steps
Iowa law gives mesothelioma and asbestos-disease claimants 2 years from the date of medical diagnosis to file a personal-injury lawsuit (Iowa Code § 614.1(2A)). For wrongful-death claims after an asbestos-related death, the filing window is 2 years from the date of death (Iowa Code § 614.1(2)). The two deadlines run on separate tracks — preserving one does not extend the other.
The personal-injury clock runs from diagnosis, not from exposure. Mesothelioma latency is typically 20 to 50 years, so workers exposed in the 1950s–1980s are being diagnosed today.
Practical first steps
- Document what you remember. Pay stubs, W-2s, union cards, photographs, coworker names, and dates of employment. The WorkChain widget on this page can save a copy you can email yourself.
- Preserve medical records. Pathology reports, biopsy results, imaging, and pulmonary-function tests are central to both civil claims and trust-fund filings.
- Identify household members. Spouses who laundered work clothing and children of plant workers are eligible for secondary-exposure claims when diagnosed with an asbestos-related disease.
- Speak with an asbestos attorney with Iowa experience. The first conversation is free and confidential. Asbestos trust-fund claims and civil claims run on different tracks — both can be pursued in parallel.
Asbestos-Related Diseases — Iowa
Asbestos fiber exposure can cause several specific diseases that typically appear decades after the original exposure. The latency period — the gap between exposure and diagnosis — usually runs 20 to 50 years. That's why workers exposed in the 1960s, 1970s, and 1980s are receiving diagnoses today.
Mesothelioma
A rare, aggressive cancer that affects the lining of the lungs (pleural mesothelioma), abdomen (peritoneal), or heart (pericardial). Mesothelioma is almost exclusively caused by asbestos exposure, which is why a mesothelioma diagnosis often points directly to historical workplace exposure. Average latency from first exposure to diagnosis is 30-50 years.
Asbestosis
A chronic, non-cancerous scarring of lung tissue caused by inhaled asbestos fibers. Asbestosis causes progressive shortness of breath, persistent cough, and reduced lung function. It does not improve with treatment, and it is a recognized basis for compensation under most trust schedules and civil claims.
Lung Cancer
Asbestos exposure significantly increases the risk of lung cancer, particularly when combined with a history of smoking. Asbestos-related lung cancer is compensable under the same trust schedules and civil claim avenues as mesothelioma.
Other Recognized Diseases
Pleural plaques, pleural thickening, laryngeal cancer, ovarian cancer, and certain gastrointestinal cancers are also recognized as asbestos-related under various trust schedules and case-law authorities, though eligibility and proof requirements vary by claim type.
If you have any of these diagnoses and you worked at this facility, lived with someone who did, or were exposed in any documented capacity, you may have a claim worth pursuing. Speak with an attorney before assuming you don't qualify.
Data Sources — Iowa
Information about facility equipment, industrial materials, and occupational records referenced on this page is drawn from publicly available sources where applicable, including:
- EPA ECHO Facility Compliance Database — enforcement and compliance records for industrial facilities
- OSHA Establishment Search — federal workplace inspection history
- EIA Form 860 Plant Data — power-plant equipment and ownership records (where applicable)
- Iowa Department of Natural Resources NESHAP asbestos abatement notification records
- Published asbestos trial and trust fund records (publicly filed court documents)
- AsbestosIndex Product & Manufacturer Crosswalk — historical asbestos-containing product schedules linked to manufacturers
If specific equipment or product claims in this article are sourced from a non-public database, the source is identified parenthetically within the text above.