33 CFR § 166.400 - Areas along the coast of Alaska.

---
identifier: "/us/cfr/t33/s166.400"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 166.400 - Areas along the coast of Alaska."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "166.400"
section_name: "Areas along the coast of Alaska."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "P"
subchapter_name: "PORTS AND WATERWAYS SAFETY"
part_number: "166"
part_name: "SHIPPING SAFETY FAIRWAYS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 70001, 70003; 49 CFR 1.46."
cfr_part: "166"
---


# 166.400 Areas along the coast of Alaska.

(a) *Purpose.* Fairways, as described in this section, are established to control the erection of structures therein to provide safe vessel routes along the coast of Alaska.

(b) *Designated Areas*—(1) *Prince William Sound Safety Fairway*—(i) *Hinchinbrook Entrance Safety Fairway.* The area enclosed by rhumb lines joining points at:

| Latitude | Longitude |
| --- | --- |
| 59°59′00″ N | 145°27′24″ W |
| 60°13′18″ N | 146°38′06″ W |
| 60°11′24″ N | 146°47′00″ W |
| 59°55′00″ N | 145°42′00″ W |

(ii) *Gulf to Hinchinbrook Safety Fairway* (recommended for inbound vessel traffic). The area enclosed by rhumb lines joining points at:

| Latitude | Longitude |
| --- | --- |
| 59°15′42″ N | 144°02′07″ W |
| 59°59′00″ N | 145°27′24″ W |
| 59°58′00″ N | 145°32′12″ W |
| 59°14′18″ N | 144°04′53″ W |

(iii) *Hinchinbrook to Gulf Safety Fairway* (recommended for outbound vessel traffic). The area enclosed by rhumb lines joining points at:

| Latitude | Longitude |
| --- | --- |
| 59°15′41″ N | 144°23′35″ W |
| 59°56′00″ N | 145°37′39″ W |
| 59°55′00″ N | 145°42′00″ W |
| 59°14′19″ N | 144°26′25″ W |

(2) *Unimak Pass Safety Fairway*—(i) *East/West Safety Fairway.* The area enclosed by rhumb lines joining points at:

| Latitude | Longitude |
| --- | --- |
| 54°25′58″ N | 165°42′24″ W |
| 54°22′50″ N | 165°06′54″ W |
| 54°22′10″ N | 164°59′29″ W |
| 54°07′58″ N | 162°19′25″ W |
| 54°04′02″ N | 162°20′35″ W |
| 54°22′02″ N | 165°43′36″ W |

(ii) *North/South Safety Fairway.* The area enclosed by rhumb lines joining points at:

| Latitude | Longitude |
| --- | --- |
| 54°42′28″ N | 165°16′19″ W |
| 54°43′32″ N | 165°09′41″ W |
| 54°22′50″ N | 165°06′54″ W |
| 54°22′10″ N | 164°59′29″ W |

[CGD 81-103, 51 FR 43349, Dec. 2, 1986]