33 CFR § 117.637 - Manistee River.

---
identifier: "/us/cfr/t33/s117.637"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 117.637 - Manistee River."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "117.637"
section_name: "Manistee 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"
---


# 117.637 Manistee River.

(a) The draws of the Maple Street bridge, mile 1.1, and US-31 highway bridge, mile 1.4, both at Manistee, shall operate as follows:

(1) From May 1 through October 31, between 7 a.m. to 11 p.m., the bridges shall open on signal. From 11 p.m. to 7 a.m., the bridges need not open unless notice is given at least two hours in advance of a vessel's time of intended passage through the draws.

(2) From November 1 through April 30, the bridges need not open unless notice is given at least 24 hours in advance of a vessel's time of intended passage through the draws.

(b) The CSX Transportation railroad bridge, mile 1.5, at Manistee, shall open on signal from May 1 to October 31. From November 1 to April 30, the bridge need not open unless notice is given at least 24 hours in advance of a vessel's time of intended passage through the draw.

[CGD 09-93-006, 58 FR 52442, Oct. 8, 1993, as amended by CGD09-97-014, 62 FR 43931, Aug. 18, 1997]