This classification includes all of the specialty classes below:

1. (1) Base and paving:

   1. (A) Base construction;
   2. (B) Hot and cold mixes;
   3. (C) Surface treatment;
   4. (D) Asphalt; and
   5. (E) Concrete paving;

2. (2) Bridges and culverts:

   1. (A) Painting;
   2. (B) Repair; and
   3. (C) Bridge deck overlay (sealant);
3. (3) Cofferdams, dikes, levees, and canals;
4. (4) Concrete;
5. (5) Erosion control;
6. (6) Foundation construction or drilling, pile driving, and stabilization;
7. (7) Grading and drainage (includes grading, drainage, pipe and structures, clearing, grubbing, and rip rap), excavation;
8. (8) Gunite;

9. (9) HRA miscellaneous and specialty items:

   1. (A) Traffic safety:

      1. (i) Pavement markers;
      2. (ii) Signaling;
      3. (iii) Guardrail and fending; and
      4. (iv) Attenuators, signalization, and roadway lighting;

   2. (B) Landscaping:

      1. (i) Seeding;
      2. (ii) Sodding; and
      3. (iii) Chemical weed and brush control;

   3. (C) Miscellaneous concrete:

      1. (i) Sidewalks;
      2. (ii) Driveways;
      3. (iii) Curb and gutter; and
      4. (iv) Box culverts;

   4. (D) Pavement rehabilitation:

      1. (i) Pressure grouting;
      2. (ii) Grinding and grooving;
      3. (iii) Concrete joints; and
      4. (iv) Underdrains;
10. (10) Railroad construction and related items;
11. (11) Steel, alloy, ornamental, metal fabrication, and welding; and
12. (12) Tower and stack construction.

Codification Notes: “HRA” means highway, railroad, and airport construction.