33 CFR § 117.183 - Old River.

---
identifier: "/us/cfr/t33/s117.183"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 117.183 - Old River."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "117.183"
section_name: "Old River."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "J"
subchapter_name: "BRIDGES"
part_number: "117"
part_name: "DRAWBRIDGE OPERATION REGULATIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 499; 33 CFR 1.05-1; and DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGD 82-025, 49 FR 17452, Apr. 24, 1984, unless otherwise noted."
cfr_part: "117"
---


# 117.183 Old River.

The draw of the California Department of Transportation (Route 4) highway bridge, mile 14.8 between Victoria Island and Byron Tract, shall open on signal if at least four hours notice is given to the drawtender at the Rio Vista bridge across the Sacramento River, mile 12.8.

[USCG-2021-0181, 87 FR 9447, Feb. 22, 2022]