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NAVOPLAN

Port Intelligence Brief

Prudhoe Bay, United States

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57 Verified Intelligence Items

50Verified
Intelligence

37Official
Sources

89%Overall
Confidence

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CoordinatesN 70 19' 59.9988"
W 148 25' .0012"

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Harbor ProfileBeaufort Sea; Arctic Ocean
Size: Very Small

🛂

EntranceTidal Range: .00 ft
Depth: .00 ft

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Port StatusPort of Entry: Unknown
Shelter: Poor

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Last UpdateJun 28, 2026
09:30 ET

🧭 Approach & Entrance 7 items

🛟 Shelter & Refuge 6 items

⚠ Local Cautions 6 items

🛒 Crew Rest & Resupply 7 items

☎ Harbor / Authority 5 items 🔒

📡 Contacts & VHF 4 items 🔒

🛥 Marinas 6 items 🔒

⛽ Fuel & Utilities 3 items 🔒

🛂 Clearance & Formalities 7 items 🔒

🚑 Medical & Emergency 6 items 🔒

1 - 10

Current Briefing

Approach & Entrance

Prudhoe Bay approach intelligence includes pilotage, entrance channel depths, harbor communications, traffic density, anchoring restrictions, and operational cautions for arrival planning.

1 - 1

Verified Intelligence

Tides And Tidal Datums

Official Source · Verified Jun 27, 2026

NOAA station 9497645 (Prudhoe Bay) tidal datums (values relative to MLLW): Mean range = 0.51 ft; MHHW = 0.70 ft; MLW = 0.08 ft; Highest observed tide = 4.80 ft (11 Aug 2000).

95% Confidence

Causeway Wharf And Local Infrastructure

Official Source · Verified Jun 27, 2026

Causeway extends ~2.2 miles offshore (NW side); barge dock on east side of causeway; seawater treatment plant at outer end; private daybeacons mark intakes/outfalls; 1969 wharf (SE corner) reported depth ~4.5 ft alongside.

94% Confidence

Entrance Character And Depths

Official Source · Verified Jun 27, 2026

Coast Pilot: 'shoals across most of its entrance'; Gull Island a conspicuous radar target; bay depths 6–9 ft; 'best access route' reported with depths ~4 ft paralleling west shore at 0.4 mile.

92% Confidence

Charting Authority And Chart

Official Source · Verified Jun 27, 2026

NOAA nautical chart coverage: Chart 16061 'Prudhoe Bay and vicinity' (listed in NOAA catalog; chart entry marked HISTORICAL/cancel status noted on NOAA chart site).

90% Confidence

Dynamic Shoaling And Ice Gouging

Official Source · Verified Jun 27, 2026

Coast Pilot: nearshore depths may change as much as 6 ft due to ice gouging; storms shift sands; shifting shoals and bars are common in the area (examples and extents described in Coast Pilot).

90% Confidence

Navigational Notices And Arctic Caution

Official Source · Verified Jun 27, 2026

Coast Pilot includes a 'CAUTION REQUIRED WHEN NAVIGATING IN ARCTIC WATERS' advisory (Joint Advisory March 2026) and instructs mariners to report uncharted dangers and chart discrepancies promptly.

90% Confidence

Pilotage And State Requirements

Official Source · Verified Jun 27, 2026

U.S. Coast Pilot: 'Pilotage, except for certain exempted vessels, is compulsory for all vessels navigating the waters of the State of Alaska.' The Chukchi Sea area is served by Alaska Marine Pilots (per Coast Pilot guidance).

88% Confidence