33 CFR § 165.1326 - Regulated Navigation Areas; Port of Portland Terminal 4, Willamette River, Portland, OR.
(a) Regulated navigation areas. Each of the following areas is a regulated navigation area:
(1) All waters of the Willamette River in the head of the Port of Portland's Terminal 4 Slip 3, encompassed by a line commencing at 45°36′ 01.861″ N/122°46′ 20.995″ W thence to 45°36′ 01.455 N/122°46′ 20.887″ W thence to 45°36′ 00.993″ N/122°46′ 20.714″ W thence to 45°36′ 00.725″ N/122°46′ 20.923″ W thence to 45°36′ 00.731″ N/122°46′ 21.262″ W thence to 45°36′ 00.712″ N/122°46′ 21.823″ W thence to 45°36′ 01.230″ N/122°46′ 22.048″ W thence to 45°36′ 01.651″ N/122°46′ 22.168″ W thence to 45°36′ 01.684″ N/122°46′ 22.372″ W thence to 45°36′ 01.873″ N/122°46′ 22.303″ W thence to 45°36′ 02.065″ N/122°46′ 21.799″ W thence to 45°36′ 01.989″ N/122°46′ 21.574″ W thence to 45°36′ 01.675″ N/122°46′ 21.483″ W thence to 45°36′ 01.795″ N/122°46′ 21.442″ W thence to 45°36′ 01.861″ N 122°46′ 20.995″ W.
(2) All waters of the Willamette River in Wheeler Bay between Slip 1 and Slip 3 in the Port of Portland's Terminal 4, encompassed by a line commencing at 45°36′ 10.634″ N/122°46′ 39.056″ W thence to 45°36′ 10.269″ N/122°46′ 37.140″ W thence to 45°36′ 10.027″ N/122°46′ 36.050″ W thence to 45°36′ 09.722″ N/122°46′ 34.181″ W thence to 45°36′ 09.425″ N/122°46′ 33.118″ W thence to 45°36′ 08.960″ N/122°46′ 32.150″ W thence to 45°36′ 08.653″ N/122°46′ 31.681″ W thence to 45°36′ 08.191″ N/122°46′ 31.341″ W thence to 45°36′ 07.886″ N/122°46′ 31.269″ W thence to 45°36′ 07.517″ N/122°46′ 31.038″ W thence to 45°36′ 07.235″ N/122°46′ 31.066″ W thence to 45°36′ 07.040″ N/122°46′ 30.941″ W thence to 45°36′ 06.697″ N/122°46′ 30.987″ W thence to 45°36′ 06.509″ N/122°46′ 31.251″ W thence to 45°36′ 06.201″ N/122°46′ 31.517″ W thence to 45°36′ 06.081″ N/122°46′ 1.812″ W thence to 45°36′ 06.550″ N/122°46′ 32.124″ W thence to 45°36′ 06.970″ N/122°46′ 31.895″ W thence to 45°36′ 07.172″ N/122°46′ 31.868″ W thence to 45°36′ 07.883″ N/122°46′ 32.316″ W thence to 45°36′ 08.370″ N/122°46′ 32.927″ W thence to 45°36′ 08.775″ N/122°46′ 33.888″ W thence to 45°36′ 09.121″ N/122°46′ 35.337″ W thence to 45°36′ 09.230″ N/122°46′ 36.166″ W thence to 45°36′ 09.442″ N/122°46′ 37.759″ W thence to 45°36′ 09.865″ N/122°46′ 39.511″ W thence to 45°36′ 10.421″ N/122°46′ 39.469″ W thence to 45°36′ 10.634″ N/122°46′ 39.056″ W.
(b) Regulations. All vessels are prohibited from anchoring, dragging, dredging, or trawling in the regulated navigation areas established in paragraph (a) of this section.