### Question
How does the law define historic bridge?


### Answer
Under *23 U.S.C. § 144*, **historic bridge** is defined as:

> any bridge that is listed on, or eligible for listing on, the National Register of Historic Places

#### Citation:
  - *23 U.S.C. § 144*
  - Heading: **CHAPTER 1-FEDERAL-AID HIGHWAYS**

