Limestone is a sedimentary rock, meaning it forms from sediments—rock and sand that settle and accumulate over time at the bottom of water. In particular, limestone forms from the accumulation of shell, coral, algal and fecal debris in clear, shallow and warm marine waters, though it can also form in caves through evaporation.  Mostly composed of calcium carbonate, limestone may also contain other types of rock. 

Strong, Dense Rock

Limestone has many uses because it is a strong dense rock with few pore spaces.  This structure allows limestone to stand up well to abrasion and freeze-thaw.  It is also easier to mine than any other strong rock and has a lower wear impact on machinery.  

Limestone Uses

There are many uses for limestone, though most limestone is used in construction.  Most commonly, it is turned into crushed stone and used as road base or railroad ballast.  It can also be used as an aggregate in concrete or cement.  Limestone can be formed into blocks to use as stone, floor tiles, window sills and other architectural or construction purposes.  

State Regulations

The Illinois Department of Transportation (IDOT), the Indiana Department of Transportation (INDOT) and the Michigan Department of Transportation (MDOT) determine regulations for the quality of construction materials used on roadways and railways.  These regulations require that all construction materials meet certain quality standards and perform sufficiently on tests for freeze-thaw and alkali-silica reactivity (ASR).  

State Approved

Shoreline supplies a broad range of aggregates for construction, residential and industrial use. Our INDOT, IDOT and MDOT state approved limestone, sand and gravel materials follow strict quality-control standards. We make sure that these products meet state regulations and will perform the job as required.  

Competitive Transportation Costs

Shoreline will haul these materials by the ton, yard, or load. We use local sources for our supplies so that we can provide the cheapest transportation costs possible.  Our strategically located quarries allows us to provide a more quicker delivery as well. 

Use Our Aggregates

Our quality limestone and other aggregates can be used for a wide array of applications. Purchase our limestone products today and use them to:

  • Construct and maintain highways, airport runways and railways 
  • Build bridges, homes, hospitals and schools
  • Provide drainage, water filtration, and erosion control
  • Make gravel driveways, roads & parking lots.
  • Build sewer systems
  • Provide fill material

Shoreline Limestone

We strive to provide high quality products with exceptional customer service.  Contact us today to learn more about our limestone products and how we can help you with your next construction project.  Together we can build things that matter.  

3/4″ Clean Crushed Limestone

3/4-1” Clean Crushed Limestone—INDOT #8

This material is the most commonly used for:

  • Pipe Backfill
  • Foundation Walls 
  • Drainage
  • Concrete mix

Road Base

1″ down to dust packing crushed limestone.

It is commonly used as:

  • Compactable base underneath brick and concrete pavers
  • Base for retaining walls
  • Driveway topping

4×6 Rip Rap

  • 4×6 Rip Rap
  • Average size 4.5”
  • Average weight 10 #
  • Weight Ranges 1 to 50 #

INDOT Uniform Rip Rap

  • Average size 4.5”
  • Average weight 10 #
  • Weight Ranges 1 to 50 #

INDOT Revetment Rip Rap

  • Average size 7.0”
  • Average weight 40 #
  • Weight Ranges 1 to 150 #

RR #5

  • Average size 10.0”
  • Average weight 90 #
  • Weight Ranges 2 to 400 #

INDOT Class 2

  • Average size 12.0”
  • Average weight 170 #
  • Weight Ranges 5 to 600 #

RR #7

  • Average size 18.0”
  • Average weight 300 #
  • Weight Ranges 10 to 1000 #

Armour Stone

Our Armour Stone has been widely specified by the US Corp of Engineers and consulting engineers for river revetment and diversion contracts. Our Armour Stone is also used to protect the shoreline of the Great Lakes as it is extremely durable to the harshest waves. With a range of sizes available to meet the specific requirements, we are a major supplier to Shore protection projects.

5/8″ Clean Crushed Limestone

  • Gray in color
  • Does not contain dust

This material is commonly used for:

  • Pathways
  • Driveways
  • Decorative Ground Cover


  • ½ Inch Chips—INDOT #11—IDOT CM #13
  • Gray in color
  • Does not contain dust

This material is commonly used for:

  • Pathways
  • Driveways
  • Decorative Ground Cover

Limestone Screening

  • Limestone Screenings—¼” to dust
  • Gray color 

The product is also commonly used for:

  • Bike Paths
  • Walking Paths
  • Warning Tracks
  • Horse Stable Arenas and Stalls
  • Leveling Agent


  • Improves nutrient and water uptake
  • Protects the soil from wind erosion
  • Improves the fertilizer efficiency by as much as 50%
  • Makes certain herbicides more effective

Railroad Ballast

1 1/2-2” clean crushed limestone—CA5

This product is commonly used:

  • Under railroad tracks
  • To fill deep over-digs
  • To fill porches
  • To fill under garages


  • 2″ Crushed limestone
  • Stone, gray color

This product is commonly used for:

  • Driveway Base
  • Decorative Ground Cover

3 Inch crushed limestone

  • This material is commonly used as a base for driveways and parking lots. 
  • It is also used in construction drives for heavy equipment. 
  • It can be hard to walk on because the pieces are so large. 
  • It cannot be shoveled by hand.


1 ¼ clean crushed limestone—INDOT #5

This material is the most commonly used for::

  • Pipe Backfill
  • Foundation Walls
  • Drainage
  • Concrete Mix

*We do not deliver to residential customers.*

Shoreline Delivers

If you are looking for the right company that offers supply and transport for your construction business, contact Shoreline Aggregate today. Shoreline offers a wide selection of limestone, sand and gravel products for road construction, golf courses and sports field projects. We deliver aggregates throughout Illinois, Indiana and Michigan. Quarries are strategically located for quick delivery and competitive pricing.