Company: ACA
Filing Date: 2025-02-28
Form Type: 10-K
Source: 0001739445-25-000026
Chunk: 75

Company: Arcosa, Inc.
Filing Date: 2025-02-28
Form: 10-K
Item: Item 2
Chunk 75
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 compared to natural aggregates, we do not group our specialty materials operations by geographic region.

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Table of Contents

Our active operations as of December 31, 2024 included 54 that produce and distribute natural aggregates and 12 that produce, process, and distribute specialty materials. In addition to our active operations, we control interests in 23 inactive or greenfield (undeveloped) mining properties. We also own and operate recycled aggregates (i.e., recycled concrete products) facilities which are not dependent on mineral reserves.

The following map illustrates the locations of our active mining operations as of December 31, 2024, excluding stand-alone processing facilities:

The following table summarizes, by major commodity group and geographic region, the status for our mining properties as of December 31, 2024: 

Number of PropertiesProducingInactiveTotalNatural aggregates:Texas241034All other30838541872Specialty materials12517662389

Our active mining operations include 65 surface mines and one underground mine. The operations extract materials from surficial or near-surface alluvial and bedrock deposits. Mining methods utilized at our surface operations include conventional truck/shovel excavation and dredge mining. Our single underground mine in Pennsylvania utilizes mechanized room-and-pillar mining methods.  

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Processing operations to produce sand and gravel and crushed stone consist of mechanized crushing, washing, and sizing. Stabilized sand is mixed in a pug mill. Specialty materials may be subjected to additional processing – such as milling and grinding, roasting (in kilns), and/or pelletizing – depending on the product specifications. The following table summarizes, by major commodity group, the annual production history over the preceding three years for our mining properties:

Annual Production (million tons)202420232022Natural aggregates26.4 27.5 26.8 Specialty materials4.0 4.0 4.6 30.4 31.5 31.4 

Our ownership or leasehold interest in our mining properties – both active and undeveloped – is 100%. Rights to mine the properties are controlled through our ownership in fee and/or long-term lease agreements with third parties. 

Our mining operations are subject to a wide range of laws, ordinances, and regulations and require various governmental approvals and permits. Federal, state, and local authorities regulate the operations with respect to matters such as employee health and safety, permitting and licensing requirements, air quality standards, water quality standards, plant and wildlife protection, the re