Pub.304 sup.

Sailing Directions
for Coast of Hokkaido

Supplement No.5

17 February 2023

Japan Coast Guard

Explanatory Notes
Sailing Directions for Coast of Hokkaido - Supplement No.5 is issued to correct the outdated
information in Publication No.304 Sailing Directions for Coast of Hokkaido which was published inFebruary 2020.
This supplement contains the information which has been gathered through the work of Hydrographic
and Oceanographic Department, Japan Coast Guard by 16 December 2022.
The instructions for amending, deleting or adding of the previous issues are indicated in thissupplement. This supplement also contains an index to be referred to the pages on which they arementioned. The index is listed in numerical order, along with the titles of the ports or articles.
Amendments are indicated in red letter on grey background while deletions are marked with strikethrough,in red letter on grey background. Chart images, tables or pictures to be delated, replaced or added areinstructed in [square brackets].
Each sheet of the supplements is excerpted from the relevant issue of the Sailing Directions so that thepage number printed in the supplement is corresponding to the original page number. In case that a sheet
had spanned multiple pages by adding large volume of text or image, sub-number is given to the pagenumber.
17 February 2023
Hydrographic and Oceanographic Department,
Japan Coast Guard

Caution
This supplement is for use in conjunction with Notices to Mariners, List of Aids to Navigation, andrelated charts and publications, because no corrections are given thereto except through supplements.
Especially for updated information concerning the safety of navigation instructed by Japan CoastGuard, please refer to Notices to Mariners and related publications.
In the interest of ensuring the safety of navigation and protecting the marine environment, the Japan
Coast Guard (JCG) publicises information that could affect the safety of navigation and environmental
protection by issuing Notices to Mariners (NTMs) and Navigational Warnings (NWs), and publishingsuch information on the JCG charts and in other nautical publications, based on laws, regulations,proclamations, charts, NTMs, NWs issued by countries concerned as well as reports made by ships.
Sailing Directions published by JCG are intended solely for the purpose of providing information forsafe navigation. The contents included in the Sailing Directions do not reflect the Japanese Government’s
official stance regarding the laws, regulations, and proclamations of other countries.

Sailing Directions for
Coast of Hokkaido

Updated parts (title, port name, etc.)

Page
82

Supplement No.5
INDEX

Muroran Ko

82-1 Muroran Ko
92

Tomakomai Ko
Blank below

17 February 2023
Remarks

Chapter 182

510level is 0.95 m.
Secondary undulation. The sea level of this port undulates with an interval of about 53 min but the range
rarely exceeds 10 cm.
Sea ice. In 1987, some areas in the port froze over.
The largest vessel to enter the port. A passenger ship “QUANTUM OF THE SEAS” (168,666 t; draught:8.5m) was berthed at Sakimori Wharf No.6 Quay on June 24, 2016.
Port communications. Port communications by a VHF radiotelephone system between a vessel and Captainof the Port is available through the HOKKAIDO COAST GUARD RADIO.
Call nameFrequency

Hours ofOperation

Contact

HOKKAIDO COAST GUARD RADIO

16 / 12ch

24 hours

Muroran Coast Guard Office202530Remarks

Pilotage. Pilotage is available on request through the Muroran Pilot Association (Refer to Chapter 6“PILOTAGE” of Part 1 on page 18.).
Landmarks.
Landmark

15

THE SOUTH COAST OF HOKKAIDO

Position

Remarks

A chimney
A chimney
Iyoshisanbe

42° 21.0′ N, 140° 58.9′ E
42° 21.1′ N, 140° 59.8′ E
42° 20.2′ N, 140° 57.1′ E

A chimney

42° 20.6′ N, 140° 59.3′ E

A chimney
A wind turbine
A wind turbine
A wind turbine

42° 21.9′ N, 140° 56.9′ E
42° 20.7′ N, 140° 56.5′ E
42° 19.6′ N, 140° 58.9′ E
42° 19.6′ N, 140° 59.1′ E

A chimney with grey in color, 79 m high.
A chimney, 55 m high.
A conical mountain, 140 m high.
A chimney, which has been painted in white and red, 154 m high,and is located at the W end of the chimney group.
A chimney, 185 m high.
A Wind Turbine with in white, 100 m high.
A Wind Turbine with in white, 100 m high.
A Wind Turbine with in white, 120 m high.

Directions. The passage leads from an area WNW of Daikoku Shima to an area W of Nippon Steel Wharf.
Six pairs of leading lights are installed on Nippon Steel Wharf and Nittsu Wharf, and a pair of leading
beacons is installed on Central Wharf. These are useful as berthing aids.
Entry restricted. In order to prevent fire hazard, no vessel is allowed to enter within a radius of 30 m fromtankers (including tank ships) carrying flammable dangerous substance at berthing or anchoring in the port
except the vessels permitted by Captain of the Port. It is required that such tankers show a sign “Loadedflammable dangerous substance” which is discernible by night while berthing or anchoring in the port.
Precautions for entering the port. Fish preserves and aquaculture facilities are laid along the E side of N
Outer Breakwater and other aquaculture facilities in the W of Nima Misaki (42° 20.1′ N, 140° 55.8′ E), therefore
caution needs to be exercised.
At night, the various leading lights, light buoys, and the lights on N and S Breakwaters are often difficult todistinguish from the background city lights. The sight of harbour is often obstructed when vessels navigate thepassage because many vessels are usually at anchor within the port. In addition, it is necessary to exercise
caution because vessels entering to or leaving from Nippon Steel Wharf can meet vessels entering to or leavingfrom each southern wharf of the section 1 in the vicinity of the E end of the passage.
Overhead bridge. Hakucho O-Hashi (53 m high, with bridge lights) extends from an area S of the root of S
Breakwater to an area S of the root of N Breakwater, and is illuminated at night.
Anchorage. A quarantine anchorage is established WSW about 1.8 M of Poroshireto Misaki (42° 22.4′ N,140° 54.9′ E) but it is necessary to exercise caution because there are aquaculture facilities nearby. The

82-1

Chapter 1

THE SOUTH COAST OF HOKKAIDO

anchorage for vessels carrying dangerous cargoes is designated on the N of the passage within Section 3 as acommon rule. The bottom of both inner and outer harbours are mostly sand and generally affords a goodholding.

Chapter 192Facilities.
Position

Length(m)Depth(Approx. m)

Capacity(D/W × vessel)

N Wharf No. 1 and 2 Quays

42° 38.5′ N, 141° 37.3′ E

260in total

7 ~ 7.5

5,000 × 2

N Wharf No. 3 and 4 Quays

42° 38.6′ N, 141° 37.5′ E

180in total

4.5

2,000 × 2

E Wharf No. 3 ~ 6 Quays

42° 38.5′ N, 141° 37.6′ E

571
in total

7~910,000 × 4

W Wharf No. 1 ~ 4 Quays

42° 38.3′ N, 141° 37.4′ E660
in total

8~910,000 × 4

S Wharf No. 1 and 2 Quays

42° 38.0′ N, 141° 37.5′ E

370
in total

1015,000 × 2

S Wharf No. 3 Quay

42° 37.9′ N, 141° 37.5′ E

1951120,000 × 1Irifune Wharf Quay

42° 38.3′ N, 141° 37.7′ E

330
in total

1440,000 × 1

No. 1 Quay

42° 38.6′ N, 141° 39.2′ E

2401230,000 × 1

No. 2 Quay

42° 38.5′ N, 141° 39.1′ E

2401230,000 × 1

No. 3 Quay

42° 38.5′ N, 141° 38.9′ E

1701010,000 × 1

No. 1 Quay

42° 38.7′ N, 141° 39.7′ E

1851015,000 × 1

No. 1 E Quay

42° 38.8′ N, 141° 39.8′ E

2401230,000 × 1

42° 38.9′ N, 141° 40.2′ E

329
in total

7.5

5,000 × 342° 38.9′ N, 141° 40.0′ E

2201015,000 × 1W Quay

42° 38.6′ N, 141° 40.0′ E

165910,000 × 1

No. 1 Quay

42° 38.6′ N, 141° 40.2′ E

2401230,000 × 1

No. 2 Quay

42° 38.6′ N, 141° 40.3′ E

2401230,000 × 1

No. 3 Quay

42° 38.7′ N, 141° 40.4′ E

1307～85,000 × 1

Harumi
Wharf

NameCentral NWharf

10Quarantine anchorage.
A quarantine anchorage is established near the harbour limit within Section 3 (42°36.4′ N, 141° 36.0′ E). Vessels carrying dangerous cargo shall anchor in Section 4.
Anchoring restricted. Vessels are restricted from anchoring within Section 1 and Section 2. Furthermore, allvessels are prohibited from anchoring to ensure the security of inward-bound and outward-bound vessels in thevicinity of the entrance of Nishi Ko.
Cautions for anchoring and evacuation advisory. The anchorage cannot be considered safe because theanchorage affords poor holding ground and the bottom is mostly sand and pumice. Some vessels have had dragging
anchors which resulted in stranding especially when a southerly strong wind is blowing.
For the reasons above, the Captain of the Port of Tomakomai issue “Advice for preventing dragging anchor” which
order the vessels anchoring inside and the vicinity of Tomakomai Ko to weigh anchor and evacuate in cases thatsoutherly winds with a velocity of 15m/s and more blow continuously.

No. 2 ~ 4 Quays

Timber Dolphin
Central S
Wharf5THE SOUTH COAST OF HOKKAIDO

Remarks