49 CFR § 237.5 - Definitions.

---
identifier: "/us/cfr/t49/s237.5"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 237.5 - Definitions."
title_number: 49
title_name: "Transportation"
section_number: "237.5"
section_name: "Definitions."
chapter_name: "FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "237"
part_name: "BRIDGE SAFETY STANDARDS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 20102-20114; 28 U.S.C. 2461 note; and 49 CFR 1.89."
regulatory_source: "75 FR 41302, July 15, 2010, unless otherwise noted."
cfr_part: "237"
---


# 237.5 Definitions.

For the purposes of this part—

*Bridge modification* means a change to the configuration of a railroad bridge that affects the load capacity of the bridge.

*Bridge repair* means remediation of damage or deterioration which has affected the structural integrity of a railroad bridge.

*Railroad bridge* means any structure with a deck, regardless of length, which supports one or more railroad tracks, or any other undergrade structure with an individual span length of 10 feet or more located at such a depth that it is affected by live loads.

*Track owner* means a person responsible for compliance in accordance with § 237.3.