• 45.2
    Million Metric Tons Crushed Stone Produced

  • 4,483
    Jobs

  • 17.4
    Million Metric Tons
    Sand & Gravel Produced

  • 240
    Plants & Mines

  • $2.22
    Million Contributed
    to Indiana GDP

  • 97,553
    Miles of
    Public Roads

Events

Mar 10, 2026

Regional Preseason INDOT/Industry Meeting - Seymour/Vincennes Districts

9:00 AM - 1:00 PM

register

Mar 11, 2026

Regional Preseason INDOT/Industry Meeting - Crawfordsville/Greenfield Districts

9:00 AM - 1:00 PM

register

Mar 12, 2026

Regional Preseason INDOT/Industry Meeting - Ft. Wayne/LaPorte Districts

9:00 AM - 1:00 PM

register
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2025 INDOT Preseason Update Recording Posted
In late early March, IMAA, APAI, IRMCA, ACPA and INDOT hosted the annual Preseason Updates Regional Meetings to discuss updates to specifications and construction programs for 2025. A recording of the Aggregate Update Presentation is now available on the IMAA YouTube page. Viewing the spring…

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Indiana Rocks
Build Hoosier Tomorrows

Pre-order the 2026 INDOT Standard Specifications Book
Pre-Order Your 2026 INDOT Standard Specifications Book today, and the publisher will ship it to you when it's hot off the presses.

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Careers in the Aggregates Industry

Environmental
Explore aggregates careers in the environmental sector. Responsibilities include assuring operations are in compliance with local, state, and federal environmental laws and regulations.

Mine Engineering
Explore aggregates careers in the engineering sectors. A project engineer applies engineering principles to the planning, design, construction, and maintenance of structures and productions facilities.

Plant Operations
Explore aggregates careers in the plant operations sector. Individuals are responsible for processing of aggregates for future use. This area encompasses numerous career opportunities.

Learn More about Aggregates Careers

Become a Member

The Indiana Mineral Aggregates Association represents over 90% of aggregate production in Indiana. It is our goal to provide the best educational programs, networking opportunities, and collaborative working atmosphere for our membership.
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News
IMAA News

In Memoriam: John Walding
Written by Guest Contributor | 02/10/26

John "Johnny" Walding, 76, passed away peacefully on February 6,...

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