Notice of Construction Area (Navigation Restriction) as Part of Port of Tokyo Bay Port
Road Nanboku Line Submerged Caisson Construction
December 12, 2018 to Late December 2019
● Offshore construction will be carried out in the Central Breakwater North Waterway as noted
below.
● Submerged caissons are installed. Please exercise sufficient caution for vessels which will benavigating the water in the area.
● Vessels of 500 gross tons or more using the Odaiba Liner Wharf and 10 Go Chi (2)Wharf west side shall enter and exit port using the Tokyo West Passage.

Figure 1 Guide DiagramNanboku Line Safe
Navigation Information
Figure 2
Management Office品
川 Go Chi Signal Station)(10ふ頭Shinagawa
１０号地その２
10 Go Chi (2)WharfDetails

1 Overview

１５号地
15 Go Chi
No.6

No.5

路
航The installation locations of submerged caissons will be dredged using spud type grab dredgers.

 Removal of existing revetments

東CentralBreakwater中央防波
堤
内側埋立地
Inner
ReclaimedLand

京13１３号地Go chi Trench dredging work

東(1) Construction details (Refer to Figures 1 and 2)

中央防波堤

頭その大井ふOi Wharf
No1１No.8

No.4

No.3

No.2

No.1新海面処分
New
Sea Level場
建設工事区域
Processing
SiteConstruction Area

No.7

東Temporary
submerged
caisson depot

西京航路

No.6

No.5

Keihinjima
京浜島

No.4

No.3

10Go Chi (2)
10号地
(その2)

ふA

フェリー
ふ頭
回頭操船 VAC岸壁入出港
船
水域(2L=382m) 舶)

250(西頭(-1130.5)(-7フェリーふ頭

Figure 2 Construction Areas

地号
10Crane equipped barges, etc. will be used to remove existing revetments and riprap on the front
surface of existing revetments.
 Temporary wall removal
Temporary walls installed on caissons will be removed using crane vessels.
 Foundation construction
Crushed stone will be directly injected to tremie ships using self-propelled grab barges and evenedout by ships. For the areas near revetments, crushed stone will be directly injected to tremie ships
using self-propelled grab barges and evened out by divers.
 Submersion work
Submerged caissons will be towed and then submerged while being manipulated by caisson control
winches.
 Caisson interior and exterior work
Concrete fixed crushed stone will be inserted by tremie ships in the samemanner as for foundation construction. Concrete will then be poured by aconcrete plant vessel.
舶港船 m)
m00
入出 33.8
 Backfilling work=2L
壁
3
1=VK岸 (2L
After caisson base concrete is poured, rock muck will be inserted by
地西 水域号
船
01操
tremie ships.
回頭 Revetment restoration
Foundation riprap will be injected using self-propelled grab barges andevened out by divers.
(2) Installation of signs and markings for clear indication of construction area
(Refer to Figures 2 and 3)
Light beacons and lighted buoys will be setup to clearly indicate theconstruction area.

Central外側埋立地
Breakwater Outer Reclaimed
Land0m)

F路水北 m)
防 2
中 (-1BE

台424

お工事区域
Construction Area
(航泊禁止区域)(Vessel prohibited area)

ラ場

1(-ふー598ナイ

2 Construction area (navigation restriction) period

13 Go Chi (2)13号地(その2)35m

D消10(-Vessel traffic zone

Lightedbuoys
灯浮標
AALongitude
経度Aイ

159ｍ

139 degrees 47 minutes
１３９度４７分４４．６秒
44.6 seconds

Bロ

From
point A
イ地点から

154 degrees
１５４度０６分
06 minutes

250m

３５度３６分４８．１秒
48.1 seconds

35 degrees 36 minutes

139 degrees 47 minutes
１３９度４７分４８．９秒
48.9 seconds

C
ハ

Frompoint B
ロ地点から

149 degrees
１４９度２８分
28 minutes

424m

35 degrees 36 minutes
３５度３６分３６．３秒
36.3 seconds

１３９度４７分５７．５秒
57.5 seconds

D
ニ

From point C

ハ地点から

236 degrees
２３６度２３分
23 minutes

322m

35 degrees 36 minutes
３５度３６分３０．５秒
30.5 seconds

１３９度４７分４６．８秒
46.8 seconds

E
ホ

From
point D
二地点から

３３１度４３分
43 minutes

598m

３５度３６分４７．６秒
47.6 seconds

１３９度４７分３５．５秒
35.5 secondsFrom point E

44 degrees
４４度２７分
27 minutes

130ｍ

35 degrees 36 minutes
３５度３６分５０．６秒
50.6 seconds

１３９度４７分３９．２秒
39.2 seconds

ホ地点からLight Signal
灯質 ：Characteristics:

1 flash４秒１閃光per
4 seconds

BeaconHeight:灯
高 ：Approximately
2.1約２．1ｍm

Light
灯 Color:色Green緑色

PaintedColor:：
標体塗色

Green緑色

Light
灯 Color:色

Yellow
黄色

PaintedColor: ：標体塗色

Yellow
黄色

Light
灯 Color:色

Yellow
黄色

PaintedColor:：
標体塗色

Yellow
黄色

Light
灯 Color:色

Yellow
黄色

PaintedColor:：
標体塗色

Yellow
黄色Top
頭 Mark:標

Cylindricaltype
円筒型

Approximately
14 約１４ｃｄcd
Approximately
約５．５ｋｍ
5.5km

Top頭 Mark:標X typeＸ型

Top頭 Mark:標X typeX

Approximately
14 cd１４ｃｄ
Approximately
約５．５ｋｍ
5.5km

Top頭 Mark:標TopMark
頭標：型

SynchronizedFlashing Type同期点滅方式

Effective
実効光度
Brightness:
Visible光達距離Distance:

：
：
：

：

―

Blue Blinking Lamp

SynchronizedFlashing Type同期点滅方式

Hanging
灯ろう Lantern
TopMark
頭標

約2.2m

Approximately 2.2m

約6.9m
φ1.6m

：

Radar
Reflector
ﾚｰﾀﾞｰﾚﾌﾚｸﾀ

約6.9m

Approximately 6.9m

Radar
Reflector
ﾚｰﾀﾞｰﾚﾌﾚｸﾀ

SynchronizedFlashing Type同期点滅方式

139 degrees 48 minutes

Hanging
灯ろうLantern
RadarReflector
ﾚｰﾀﾞｰﾚﾌﾚｸﾀ

Hanging Lantern

φ0.9m

φ1.6m

Figure 5 Marker Flags

約2.1m

Hanging
灯ろう Lantern

Top頭標
Mark：

139 degrees 47 minutes

Approximately 2.1m

SynchronizedFlashing Type同期点滅方式Approximately 6.9m：

Approximately
14 cd１４ｃｄ
Approximately
約５．５ｋｍ
5.5km

35 degrees 36 minutes

139 degrees 47 minutes

Light
beacons (On-land)
灯標（陸上部）
Approximately
2.2約２．２ｍm：

331 degrees

139 degrees 47 minutes

Figure 4 Patrol Boat Indications

BeaconHeight:灯
高 ：Effective
実効光度
Brightness:
Visible光達距離Distance:

臨港道路南北線(60X90cm, 90X120cm)

Inquiries

400m

Latitude緯度

1 flash４秒１閃光per
4 seconds：

300

35 degrees 36 minutes
３５度３６分５５．５秒
55.5 seconds

Light Signal
灯質 ：Characteristics:：

200

Distance
距離Approximately
6.9 約6.9ｍm

Effective
実効光度
Brightness:
Visible光達距離Distance:

100

61 degrees
６１度３３分
33 minutes

BeaconHeight:
灯
高 ：

：

0

Direction
方位

1 flash４秒１閃光per
4 seconds

Approximately
14 約１４ｃｄ
cd
Approximately
約５．５ｋｍ
5.5km

中央防波堤内側埋立地

Starting
起点point

Light Signal
灯質 ：Characteristics:：

Central Breakwater - Inner
Reclaimed LandFrom 10 Go Chi
10号地信号所から
Signal Station

Approximately
6.9 約6.9ｍm

Effective
実効光度
Brightness:
Visible光達距離Distance:

置

Point
地点

BeaconHeight:灯
高 ：：置◆ Construction area (Refer to Figure 2)
Ocean surface area enclosed by shore and line connecting each point fromcoordinate A to coordinate F

1 flash４秒１閃光per
4 seconds

：

仮石仮ｯｸ

* All vessels should travel outside of the green and yellow buoy marked areas.

Light Signal
灯質 ：Characteristics:：

壁入出港船舶
中防内側X5岸(2L=333.8m)
回頭操船水域m)

Patrol Boats (N Type Deployed 24h)
警戒船（N型24h配備）
Patrol Boats (N Type Deployed 8h)
警戒船（N型8h配備）

捨波

ﾛﾌﾞ

Ｘ５(-10m)

Light
beacon A for indication of navigable area
可航水域明示用灯標ALight
beacon C for indication of navigable area
可航水域明示用灯標CLight beacons for clear indication of
工事作業区域明示用灯標(陸上部)
construction
area (on-land section)
Lightedbuoys A for clear indication of
工事作業区域明示用灯浮標A
construction area
警戒船（S型24h配備）
Patrol Boats (S Type Deployed 24h)

Figure 3 Signs and markings for clear indication of construction area [Light beacons and lighted buoys]
Light灯beacons
標 CC232Construction
area (vessel restricted)
工事作業区域（航泊禁止）

FヘLight
灯 beacons
標 A A

C00m
1 L= 2m

827(1) The work ship group will be moored within the construction area duringthe night.
When stopped during the night, in addition to displaying the lamps
required by law, flashing indicators (1 yellow light flash per 4 seconds)
will be installed on the 4 corners of the work ship group.
(2) Patrol boats
3 patrol boats will be assigned during offshore work.
2 patrol boats (Marine VHF radio signaling capable) will be assigned tothe area when offshore work is completed to patrol the area around thework area providing information and caution to passing vessels. (Referto Figures 2 and 4)* Patrol boats can be reached using Marine VHF radio (ch. 16).
(Contact name: Nanboku Line Patrol Boats)(3) Construction Vessel Markers
Construction vessels will display the lights, beacons, symbols andmarker flags required by law. (Refer to Figure 5)(4) A "Nanboku Line Safe Navigation Information Management Office" willbe established and carry out the following. (Refer to Figure 1)• Provision of information, etc. to standard vessels, etc.
• Collection of information on vessel traffic around construction area
• Provision of information on construction ship and patrol boat
movement, caution, etc.

2273

3 Safety Measures

頭December 12, 2018 to Late December 2019)0m

Ministry of Land, Infrastructure, Transport and Tourism,
Kanto Development Bureau
Port of Tokyo OfficeTel.: 03-5534-1367
http://www.pa.ktr.mlit.go.jp/tokyo/index.htm

Inquiries related to this leaflet
Nanboku Line Safe Navigation Information Management OfficeTel.: 03-5579-6638
namboku-jokan@soleil.ocn.ne.jp