Heidelberg Mason City Cement Plant — United States
Cement Plant in United States. Approximate location 43.17889, -93.21268.
Cement PlantUnited StatesCO₂ estimate (modelled)
Heidelberg Mason City Cement Plant is a cement plant in United States. Its listed capacity is 768,421 t of cement. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length. It is operated by Heidelberg Materials US Inc. By capacity it ranks #24 among 32 cement plants in United States. It emits about 307,972 t CO₂e a year from Climate TRACE. That is 0.05% of the CO₂e from the 1,910 facilities in United States that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 11% above the national median for this sector.
Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-32439305.
Data status
Known source data
Calculated from the dataset
Not available
Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.
Similar facilities by modelled emissions
- MAK Euro Dalanjargalan Cement Plant · 308,023 t CO₂e/yr · Mongolia
- Scirocco Kafue Cement Plant · 307,824 t CO₂e/yr · Zambia
- Hills Cement East Jaintia Hills Cement Plant · 307,381 t CO₂e/yr · India
- Vicem Song Thao Cement Thanh Ba Cement Plant · 307,218 t CO₂e/yr · Vietnam
- Beni Mazar Cement Plant · 308,734 t CO₂e/yr · Egypt
Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.
Operating power plants within 50 km
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- Northern Iowa Windpower II · Wind · 80 MW · 21 km
PowerAtlas operating assets, ordered by great-circle distance from published coordinates.
In context: how this facility compares
At 768,421 t of cement, Heidelberg Mason City Cement Plant is below the median cement plant in United States (1,180,000 t of cement). Subsector: cement. As cement plant, it requires high process heat (typically 800–1400°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.
Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.
What 307,972 t CO₂e a year looks like
This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:
Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.
Carbon cost and Scope 1 emissions
At its reported 308k t CO₂e/yr (Scope 1), Heidelberg Mason City Cement Plant carries no domestic carbon price — and as a CBAM-covered product, its 308k t at the EU CBAM rate (€75/t) is €23.2M/yr of exposure on EU-bound exports. CBAM share rises from 2.5% (2026) to 100% by 2034. No domestic carbon price — but cement, steel, aluminium, fertilizer and hydrogen exported to the EU face CBAM at €75/t (rising to 100% by 2034).
Carbon price: EU CBAM €75/t · EU ETS €85/t, September 10, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Indicative carbon value, not the cash bill — free allocation applies; not compliance advice.
Capacity vs largest cement plants in United States
Listed capacity (t of cement), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
Operator
Operated by Heidelberg Materials US Inc. All facilities by this operator →
Local climate
Heidelberg Mason City Cement Plant sits in a hot-summer humid continental climate zone (Köppen Dfa), at 43.2°N in the northern hemisphere.
Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
Site climate & environmental severity
This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.
In this site’s local climate, a bare 150 °C surface sheds about 1423 W/m² to ambient — roughly 1.09× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby sites
The #24 largest of 32 cement plants in United States by listed capacity (Climate TRACE).
Nearby industrial sites
- Cargill Kitchen Solutions, Inc. · Food & Beverage
- Smithfield Packaged Meats Corp. · Food & Beverage
- Fokkol, L.L.C · Food & Beverage
- Hoover'S Hatchery Company, Llc · Food & Beverage
- Northwood Foods, Llc · Food & Beverage
- S & S Locker · Food & Beverage
Location
Coordinates 43.17889, -93.21268. View on OpenStreetMap.
Frequently asked questions
What type of facility is Heidelberg Mason City Cement Plant?
Heidelberg Mason City Cement Plant is a cement plant in United States. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.
What capacity is listed for Heidelberg Mason City Cement Plant?
The open dataset lists 768,421 t of cement of capacity for Heidelberg Mason City Cement Plant.
How much CO₂ does Heidelberg Mason City Cement Plant emit?
The page uses about 307,972 t CO₂e/year from the open dataset It ranks #362 among facilities in United States by estimated CO₂.
Where is Heidelberg Mason City Cement Plant located?
Heidelberg Mason City Cement Plant is in United States at approximately 43.17889, -93.21268.
Who operates Heidelberg Mason City Cement Plant?
The operator recorded in the open dataset is Heidelberg Materials US Inc.