We have four operating (and reportable) segments organized around our principal product lines: Aggregates, Asphalt, Concrete and Calcium. Management reviews earnings from these reporting segments principally at the gross profit level.

The Aggregates segment produces and sells aggregates (crushed stone, sand and gravel, sand, and other aggregates) and related products and services. During 2019, the Aggregates segment principally served markets in twenty states, Washington D.C., Mexico and the Bahamas with a full line of aggregates, and eight additional states with railroad ballast. Customers use aggregates primarily in the construction and maintenance of highways, streets and other public works and in the construction of housing and commercial, industrial and other nonresidential facilities. Customers are served by truck, rail and water distribution networks from our production facilities and sales yards. Due to the high weight-to-value ratio of aggregates, markets generally are local in nature. Quarries located on waterways and rail lines allow us to serve remote markets where local aggregates reserves may not be available.

The Asphalt segment produces and sells asphalt mix in six states: Alabama, Arizona, California, New Mexico, Tennessee and Texas, and includes asphalt construction paving in three states: Alabama, Tennessee and Texas. We entered the Alabama and Tennessee asphalt markets in 2018 and 2017, respectively, through acquisitions (see Note 19).

The Concrete segment produces and sells ready-mixed concrete in five states: California, Maryland, New Mexico, Texas and Virginia, in addition to Washington D.C. and an immaterial amount in the Bahamas. In 2018, we exited the Georgia ready-mixed concrete market through a divestiture (see Note 19). In 2017, we reentered the California ready-mixed concrete market through an acquisition and exited the Arizona market through a swap (see Note 19).

The Calcium segment consists of a Florida facility that mines, produces and sells calcium products.

Aggregates comprise approximately 95% of asphalt mix by weight and 80% of ready-mixed concrete by weight. Our Asphalt and Concrete segments are primarily supplied with their aggregates requirements from our Aggregates segment. These intersegment sales are made at local market prices for the particular grade and quality of product used in the production of asphalt mix and ready-mixed concrete. Customers for our Asphalt and Concrete segments are generally served locally at our production facilities or by truck. Because asphalt mix and ready-mixed concrete harden rapidly, delivery is time constrained and generally confined to a radius of approximately 20 to 25 miles from the producing facility.

The vast majority of our activities are domestic. We sell a relatively small amount of construction aggregates outside the United States. Total domestic revenues were $4,912,972,000 in 2019, $4,365,309,000 in 2018 and $3,872,494,000 in 2017. Nondomestic Aggregates segment revenues were $16,131,000 in 2019, $17,560,000 in 2018 and $17,802,000 in 2017; there were no significant nondomestic revenues in our Asphalt, Concrete or Calcium segments. Long-lived assets outside the United States, which consist primarily of property, plant & equipment, were $274,439,000 in 2019, $278,520,000 in 2018 and $211,282,000 in 2017. Equity method investments of $50,587,000 in 2019, $39,395,000 in 2018 and $22,967,000 in 2017 are included below in the identifiable assets for the Aggregates segment and in investments and long-term receivables on the accompanying Consolidated Balance Sheets.



in thousands	2019	2018	2017
Total Revenues
Aggregates ¹	$ 3,990,275	$ 3,513,649	$ 3,096,094
Asphalt ²	855,821	733,182	622,074
Concrete	395,627	401,999	417,745
Calcium	8,191	8,110	7,740
Segment sales	$ 5,249,914	$ 4,656,940	$ 4,143,653
Aggregates intersegment sales	(320,811)	(274,071)	(253,357)
Total revenues	$ 4,929,103	$ 4,382,869	$ 3,890,296
Gross Profit
Aggregates	$ 1,146,649	$ 991,858	$ 854,524
Asphalt	63,023	56,480	91,313
Concrete	43,151	49,893	45,201
Calcium	3,078	2,714	2,475
Total	$ 1,255,901	$ 1,100,945	$ 993,513
Depreciation, Depletion, Accretion and Amortization (DDA&A)
Aggregates	$ 305,046	$ 281,641	$ 245,151
Asphalt	35,199	31,290	25,400
Concrete	13,620	12,539	13,822
Calcium	232	272	677
Other	20,499	20,504	20,915
Total	$ 374,596	$ 346,246	$ 305,965
Capital Expenditures ³
Aggregates	$ 383,406	$ 422,175	$ 421,989
Asphalt	9,095	38,154	12,970
Concrete	11,641	12,291	25,176
Calcium	31	22	78
Corporate	175	2,587	4,020
Total	$ 404,348	$ 475,229	$ 464,233
Identifiable Assets ⁴
Aggregates	$ 9,334,218	$ 8,887,749	$ 8,409,505
Asphalt	558,386	527,226	426,575
Concrete	325,102	266,581	271,818
Calcium	3,653	3,942	4,428
Total identifiable assets	$ 10,221,359	$ 9,685,498	$ 9,112,326
General corporate assets	152,928	102,228	245,919
Cash and cash equivalents and restricted cash	274,506	44,404	146,646
Total assets	$ 10,648,793	$ 9,832,130	$ 9,504,891