### Question
What is the definition of railroad grading or tunnel bore?


### Answer
The definition of **railroad grading or tunnel bore** is as follows in *26 U.S.C. § 168*:

> all improvements resulting from excavations (including tunneling), construction of embankments, clearings, diversions of roads and streams, sodding of slopes, and from similar work necessary to provide, construct, reconstruct, alter, protect, improve, replace, or restore a roadbed or right-of-way for railroad track

#### Citation:
  - *26 U.S.C. § 168*
  - Heading: **Subtitle A-Income Taxes > CHAPTER 1-NORMAL TAXES AND SURTAXES > Subchapter B-Computation of Taxable Income > PART VI-ITEMIZED DEDUCTIONS FOR INDIVIDUALS AND CORPORATIONS**

