River

Minamijima Shinden

Sakon-machi

Oha

Shimoyama-machi

shi B

SawadaMiyauchibumi
ShiImamiya Bridge

Shinmizunashi Bridge
HeijimaNishinoMizunashi-machi Miyauchi

Jojo-machi

60
Miyauchi
Station59

Ota River Bridge

Jonan Bridge

Nishi Katakai-machi

Takabatake Bridge

Tachikawa General Hospital●80 8182

91

Ryo Bridge

Suyoshi River

92

Takabatake-machi

64 65
66

MiyauchiOyama-machi

Higashi O-machi

Takabatake
Ohashi Bridge

Nagaoka Fire Station
Miyauchi Branch●63

MiyauchiMiyauchi-machi

Joganji-machi

88

Doai-machi
Hanazono Minami
Hachibuse-machi
O-machi

Asahioka
Higashimiyauchi-machi

Miyasakae

Nishiki

191820

Sasazaki

Joganji Bridge

Heijima-machi
Magariara-machi

Sasabana● Nagaoka
79
HoyoenTaka-machi
Machida-machi

SettayaOta Bridge
Jomyo-machi

RiSue67

ain

Lin

er
Riv

Aoki-machiuM

noToyozume

ets

ina

in-Sh

Su River Bridge

Kaki-machi

ShToyozume-machi

Yokomakura-machi

Gejo-machi

70

KamiyaOta River Bridge

Ota Rive

Maekawa Station
Kamimaejima-machi

Aoshima-machi

500(m)

Joetsu LineriveoR

Takenokochi-machi

Katada-machi

Suwahara Bridge

太田68

Yaketa River Bridge

川69Toka-machi

Joetsu Shinkans

Takashima-machiaR

Suwamen Bridge
Muramatsu-machi❷●Muramatsu Ohashi Bridge

蓬平大橋

友蔵橋

Ot

enYaketaRiver濁沢町

❶
●iver

蓬平町

新落合橋

Yomogihira
Ohashi Bridge

Nigorisawa-machi

Heisei Akebono Bridge

Watazawa-machi

Shin Ochiai Bridge

竹之高地町

Ota River

LegendUp to 0.5 meters

Shin Koryu Bridge

Watazawa Bridge

Takiya-machi

山古志虫亀

71
From 0.5-3.0 meters

Anticipated Zones of Flooding and Destruction of Houses：

From 3.0-5.0 meters

Flood Flow (powerful ﬂow)

小千谷市

From 5.0-10.0 metersRiverbank Erosion (Soil is eroded.)

Yomogihira-machi

Muramatsu Bridge

Kanjinbo Bridge

Inundation Depth：

0Kamazawa-machi

7273001 : 25,000

500r

JoddgeKoshiji Bri

Saginosu-machi

Take-machi

Kamimaejima

Ura

167
166 166r

Maejima-machi

Suyoshi-machive

Aoyama-machi

Ri

Settaya-machi
Toyozume Water Level
Monitoring Camera Station

Koshiji Nakazawa
Koshiji Nakajima

kiKa

ver

Nanyo
Aoyamashin-machi

00 Evacuation Shelter
Landslide Warning Area

00 Evacuation Shelter (to be transitioned into a Social Welfare Evacuation Shelter later on)Dangerous Places during a Flood：

Subterranean Tunnels and Underpasses

Bridges

00 Evacuation Shelter (with a social welfare room)
Water Level Observatory

00 Evacuation Shelters Safe for Child Rearing

River Live Camera❷︼ Nagaoka Kawahigashi︵ Southern Area︶
Ota River❷︼ Nagaoka Kawahigashi︵ Southern Area︶
Ota River6190

verhi Ri

hasSaru

Kaminoyama Bridge

AkebonoToyoda-machi

Imai Water Level
Monitoring Camera StationImai

Yukyu-choNagakura-machi

Nagakuraminami-machi

Omiya-machi

IijimaOhashi Bridge

SuehiroKaname-cho
Nishi Miyauchi

Imai-machi

KitanoNagakura

Hanazono Higashi
Hanazono

Sanwa

SakoneNagakura Nishi-machi

Sumiyoshi

Sanwa-machi
Miyauchi-machi

ridg

17rveRi

enix

Eisei Bridge

Nishizu-machi

62

5Pho

Fukuda-machi

Saiwai-cho

87 86 Nakanuki Bridge
8485

Misawa︻Flood Warning Hazard Map

3Shimoyama

In accordance with the Survey Act Law and approved by the Agency Executive of the Geospatial Information Authority of Japan (being used) R2JHs91

Maeda

DoaibaSaizu Nishi-machi●255212Nagaoka ●Fire Station
Senzai
MiyabaraaIn︻
Flood Warning Hazard Map

Predicted Precipitation【Predicted Maximum Precipitation】
1-Day Total Precipitation798㎜