図 8 .5.1 新たに提案するテレメータ観測所 F-31

Source: the Study Team, and DGRE
図 8.5.1 新たに提案するテレメータ観測所
F-31
Mejerda River Upstream of Sidi Salem Dam
Tributaries Upstream of Sidi Salem Dam
Ghardimaou
Bou Salem
Sidi Salem
Dam
72
10
13
112
17
22
167
30
38
Jendouba
40
6
9
95
20
25
K13
Bou Salem
Bou Salem
55
14
16
Sidi Salem
Dam
Mejerda River Downstream of Sidi Salem Dam
図8.5.2 メジェルダ川流域の到達時間
F-32
Mejez El
Bab Pont
GP5
Mejez El
Bab Pont
Andalous
El Herri
Borj Toumi
Laroussia
Dam
El Battane
Jedeida
Pt de
Bizerte
GP8
Tobias
Dam
22
4
6
38
8
11
39
9
11
62
14
18
74
17
22
83
18
25
97
23
29
106
26
33
132
31
44
135
32
42
Slouguia
19
4
6
20
4
6
43
9
12
55
12
16
66
14
20
78
17
23
89
20
26
116
26
34
119
27
35
Slouguia
Mejez El
Bab Pont
GP5
1
0:30
0:30
24
5
7
36
8
11
47
10
14
59
13
17
70
15
20
97
22
28
100
23
29
Sidi
Medien
32
7
9
87
20
25
Bou
Heurtma
Dam
31
7
9
85
21
25
Station (Catchment Area km2)
Ghardimaou (1490)
Mliz
K13 (9,000)
Mellegue R.
Khalled
Siliana
Dam
Siliana
Laouj
Siliana Pt
GP5
12
3
4
80
18
22
28
7
8
9
2
3
Tessa R.
Rarai R.
Mellegue Dam
(10,309)
Jendouba (2,414)
Sidi medien
(1,952)
Tributaries Downstream of Sidi Salem Dam
Mejez El
Bab Pont
Andalous
23
5
7
35
8
10
46
10
14
58
13
17
69
15
20
96
22
28
99
23
29
12
3
4
23
5
7
35
7
10
46
10
14
73
16
21
76
17
22
El Herri
Bou Heurtma Dam
(382)
Bou Heurtma R.
Bou Salem (16,483)
Kasseb Dam (100)
Kasseb R.
Beja (336)
Beja R.
Zerga R.
Zerga
-95
-55
Sidi Salem Dam (18,250)
0
Siliana Pt GP5
(2,210)
Slouguia (20,990)
22
GP5 (368)
Mejez El Bab Pont GP5
Mejez El Bab Pont Andalou
Khalled (449)
Khalled R.
Lahmar
GP5
El Herri
-167
Rarai aval (356)
Mliz R.
Tributaries Downstream of Sidi Salem Dam
Sidi Salem
Dam
Slouguia
45
4
5
71
10
12
98
23
28
Distance from
Sidi Salem Dam
(km)
Mejerda R.
Jendouba
Mejerda River and Tributaries
Mellegue
Dam
Siliana Dam
30
6
8
Laouj (2,066)
Siliana R.
Borj Toumi
38-39
Lahmar R.
11
2:30
3:30
23
5
7
34
7
10
61
13
18
64
14
19
Laroussia
Dam
12
3
4
23
5
8
50
11
16
53
12
16
El Battane
11
2:30
3:30
38
8
11
41
9
12
El Herri
62
Borj Toum (21,700)
74
Laroussia Dam (21,860)
83
El Battane (22,000)
97
Jedeida (22,100)
106
Pt de Bizerte GP8
132
Tobias Dam
135
Jedeida
28
6
8
31
7
10
Pt de
Bizerte
GP8
3
1
1
GP7
Chafrou R.
145
Sea (Gulf of Tunis)
LEGEND
Sidi Salem
Dam
Slouguia
18 km
4h
6h
Source: GDRE
LEGEND
Distance between Slouguia and Sidi Salem Dam (km)
Minimum propagation time (hr)
Maximum propagation time (hr)
Water Level / Discharge Stations
Dam
Source: JICA Study Team, and interview with Civil Protection Manouba
図 8.6.1 ジュテイダ市の避難図
F-33
F-34
凡 例
氾濫域
表流水
都市地域
行政界（区）
かんがい地区
農業開発地区
図8.7.1 100年確率洪水の想定氾濫域図（シディサレムダム上流域）
二線堤の建設候補地点
（超過洪水対策として）
Site A 12 km (エルマブトゥ)
Site B
7 km (シディタベット)
Site C
3 km (テブルバ)
A
B
凡 例
氾濫域
表流水
F-35
C
都市地域
行政界（区）
かんがい地区
農業開発地区
図8.7.2 100年確率洪水の想定氾濫域図（シディサレムダム下流域）
図8.8.1　統合洪水管理の組織体制図 (1/2)
Management
Measures
Structural
Measures
River Administration
Integrated
Integrated
Administratio
Integrated
Operation
n:River Area,
Planning and
and
River Course,
Implementation
Maintenance
Water
(DGRE)
Storing and
Regulating Flood
Runoff
a) construction of
dams & retarding
basins
b) improvement of
reservoir operation
NonStructural
Measures
○
○
○
DGBGTH
○
○
○
DGBGTH
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
b) Flood forecasting
system
c) Flood warning,
evacuation & fighting
activities
Others
INM:
information
INM
DGBGTH,
CRDA
DGF: forst area,
DGACTA: outside forest
area, planning for CRDAs
Flood Plain
Management
a) Land use control
(zoning)
MEHAT Minsiry of
(Urban)
Interior
DGBGTH: large, inter-regional project,
CRDA: small projects in a region
Basin
Preservation
a) Forest
management
b) Land use
management
c) Soil erosion
management
MARH
(Rural)
DGBGTH: dams, large
inter-regional projects
River Channel
Improvement
a) Dike
b) Channel
excavation &
widening
c) Bypass channel,
flood ways
Organizations Concerned *
○
ANPE: environment,
IRESA: research only
DGF,
CRDA,
DGACTA
ANPE,
IRESA
Coordination among
INM: rainfall,
DGRE, DGBGTH, DGF,
IREA: data base
CRDAs
DGF,
Change of
○
CRDA
land Use
○
○
○
○
DGRE
○
○
○
CRDAs
Civll
Protection
d) Flood insurance,
crop insurance, tax
adjustment
○
○
○
DGFIOP:
Protection
against
damages
e) Education and
dissemination of
people
○
○
○
CRDAs
○
f) Water proofing
○
○
○
○
○
INM,
IRESA,
Algeria
MF (upon
request)
Notes: ○ subject to integrated management, * See the next page for explanation.
MARH: Ministry of Agriculture and Hydraulic Resources, DGRE: General Direction of Water Resources, DGBGTH: General Direction of
Dams and Large Hydraulic Works, DGACTA: General Direction of Development and Preservation of Agricultural Lands, DGF: General
Direction of Forests, DGFIOP: General Direction of Financing, Investments and Professional Organisms, CDRA: Regional Commissary for
Agricultural Development, MEHAT: Ministry of Equipment, Housing and Country Planning, ANPE: National Agency for the Protection of
the Environment, IRESA: Institute of Agricultural Research and Education, INM: National Institute of Meteorology, MF: Ministey of
Finance,
F-36
図 8.8.1 統合洪水管理の組織体制図(2/2)
< Structural Measures >
Storing and Regulating Flood Runoff
- All large dams and hill dams in the country are under the management of the DGBGTH at all stages from
planning and design stages to construction, operation and maintenance stages. Establishment of a new
control center for integrated reservoir operation and preparation of documented guidelines, design standards
and reservoir operation rules can be managed under the jurisdiction of the DGBGTH. The INM provides
only the meteorological information to the DGBGTH.
River Channel Improvement
- River channel improvement works, such as retarding basins, dikes, river channel excavation and widening,
flood ways, and bypass channels can be implemented within the jurisdiction of the MARH. The DGBGTH
takes charge of planning, design and construction of large and inter-regional river projects while the
CRDAs take charge of the small river projects inside respective governorates. The operation and
maintenance of the river works are devoted to the CRDAs.
< Non-structural Measures >
Basin Preservation
- The MARH takes charge of the basin preservation, such as forest management, land use management and
soil erosion management by the joint coordination of the CRDAs, the DGF and the DGACTA. The DGF
manages the forest areas while the DGACTA manages the areas outside the forest areas. The DGACTA also
supports the CRDAs for planning. The ANPE manages the environmental preservation of the watershed.
The IRESA takes charge of researches in the field of basin preservation.
Flood Plain Management
- Flood plain management is executed by the coordination among the DGRE, the DGBGTH, the DGF, the
INM and the IRESA. The INM provides the necessary rainfall data and the IRESA provides the data base
services.
a) Land use control
- The CRDAs take charge of the land use control and restriction inside the Public Hydraulic Domain and the
zoning for flood control under the direction of the DGF. The Ministry of Interior manages registration of
land use. In case of a large flood event, a special committee is occasionally established by the chairman, the
Governor concerned, and an inundation map for the event is made supported by relevant regional
organizations.
b) Flood forecasting system
- The DGRE takes charge of the flood forecasting and flood announcement with strong collaboration of the
INA and the IRESA. The flood forecast and announcement is transmitted to the civil protection of the
Ministry of Interior.
c) Flood warning, evacuation and fighting activities
- The civil protections in Governorates take charge of the flood warning, evacuation and fighting activities
with collaboration of the CRDAs.
d) Flood insurance
- All insurances are under the legislation of the MF. The DGFIOP is responsible of protection of farmers
from damages. The existing agricultural insurance covers damages by fire, drought, hail, floods, etc.
e) Education and dissemination of people against floods
- The CDRAs are responsible of education and dissemination of people against floods in the rural and urban
areas under the guidance of the MEHAT and/ or the MARH.
f) Water proofing
- Technical guidance to the CRDAs is effective from the MARH and /or the MEHAT.
F-37
< Target Year : 2030 >
F-38
図8.9.1 メジェルダ川流域の洪水防御マスタープランの構成
Project on Strengthening
Project on Strengthening
Flood
FloodControl
ControlFunction
Functionofof
Reservoirs
Reservoirs
Project on
Project on
River
RiverImprovement
Improvement
<Structural Measures>
(Max. reservoir func.)
Project on
Project on
Strengthening
Strengthening
FFWS
FFWS
(Support)
Project on Organizational
Project on Organizational
Capacity
CapacityDevelopment
Development
(Min. crop damage)
Project on Flood
Project on Flood
Plain
PlainRegulation/
Regulation/
Management
Management
(Min. human loss)
Project on Strengthening
Project on Strengthening
Evacuation and Flood Fighting
Evacuation and Flood Fighting
System
System
Cooperation
Information
Request
Source: the Study Team
<Non-structural Measures>
(Purpose)
Minimization of Flood Damage
図 8.9.2 メジェルダ川流域における洪水防御マスタープランの概要
STRUCTURAL MEASURES
Strengthening Flood Control
Function of Reservoirs
4.0
4.0
1:2.0
1:2.0
1:2.0
Levee embankment
Crest width : 4.0 m wide
Free board : 1.0 m high
Side slope : 1:2.0
68 to 86 %
1:2.0
Legend
River - major
Dams - plan
Dams - existing
1:2.0
Levee embankment
Unit: m
Retarding Basin
100 year; optim. y 2030
Zone D1:
9
11
Day
13
B
25
m
m
ve
r
Ri
eje
rd
a
M
je r
Me
P6
20
B=
el
nn
ha
s C 15m
s
pa =
By B
m
Siliana
da
r
ve
Ri
Mejez El Bab
Mejez El Bab
TestourSlouguia
Sidi Salem Dam
5
GP
Siliana Dam
Bou Salem
er
Riv
U1
U2
l
nne
Cha
ass
m
Byp = 25
B
m
k
8.0
ening
/Wid m
0
ation
xcav ent B = 4
nel E
ChanEmbankm
+
Me Melleg
lle ue Ri
g u ver
eR
ive
Mellegue Dam and Sarrath Dam
TessaDam
CRDA
Ministry of Interior
Warning
Governorate
Office
Governor
Buildings
Minister of
Interior
Coordination among representatives of
the respe ctive Ministries
Engines
W arning
Regional Disaster Comm ission
National Disaster Comm ission
Organizational Capacity Development
To establish new division in charge of
Mejerda River Basin under DGBGTH
z
z
MARH
Existing
Existing
To establish an organizational framework for
integrated flood management (IFM)
To materialize 11 proposed programs for
organizational empowerment to promote
IFM under the framework
New
Sidi Salem
Reservoir
GP6
Flood Plain Regulation/Management
Sidi Ismail
tion/
xcava m
nel E
0
Chan ing B = 5
n
Wide
Mellegue River
(Mellegue River)
- Embankment: L=7.4km,H=1.0-3.0m
- Channel excavation/widening:
12.9km
- Sluice gate:
3 nos.
er
r
Zone M:
R iv
Jandouba
n/
vatio
Exca 50 m
nnel
Cha ning B =ment
k
e
Wid Emban
+
Instruction
Mejerda River
sa
Ghardimaou
Sidi Salem Dam
Bou Sdira
s
Te
er
Estuary of the Mejerda River to Laroussia Dam
(Mejerda River)
- Embankment: L=55.9km, H=0.5-2.5m
- Channel excavation/widening:
63.8km
- Sluice gate:
47 nos.
- Revetment
- Renewal of existing bridge: 3 nos.
- Heightening of existing railway
bridge:
1 no.
Regional
Police
Equ ipm ents
Mejer da River
Channel Excavation/
Widening B = 15 m
Jendouba
Requ isition
Manpo wer
Civil
volunteers
Zone D2:
Bou Salem
ing
iden
n/W
atio
cav
l Ex = 10m
e
n
B
n
Cha
Meje
rda R
iv
Regional
N.G.
DGBGTH
a
rtm
eu
Zone U1:
Regional
C.P.
Be
uH
Bo
N
Confluence with Mellegue River
to Border with Algeria
(Mejerda River)
- Embankment: 5.1km
- Channel excavation/widening:
48.2km
- Sluice gate:
3 nos.
- Revetment
B
To
Be
ja
Bou Heurtma Dam
40
Kilometers
Coope ration at Private Level
El Mabtouh Retarding Basin
Mellegue Dam
20 30
Warning
(El Mabtouh Retarding Basin)
- Inlet channel:
11.9km
- Outlet channel:
7.8km
- Surrounding dike: L=10.1km, H=2.0-4.0m
Siliana Dam
0 5 10
National
Security
Civil
Protection
Summons
0m
=2
Ka
sse
bR
ive
Bou Heurtma Dam
Tunis
Instruction
National
Police
Coordination at Regional Level
=
B =m
25
25
=
B
El Herri
Mellegue 2
N
To Tunis
Larrousia Dam
Mellegue
National
Guard
Jedeida
El Battane
Sidi Salem Dam
nis
Tu
To
(Majez El Bab Bypass Channel)
- Length:
4.5km
- Channel bottom width
15m
=
el
nn
ha
Sidi Salem
Technical
instruction
N.G.
Sidi Thabet
C
et
Inl
Sidi Salem Dam
Jedeida
iv e r
7
Instruction
ja R
5
Slouguia G.S.
Control
Ministry of Agriculture
8
GP
3
IR ESA
Databa se
DGBGTH
Police
25m
0
Coordination
Access
Warning
D2
D1
B=
1000
Repo rting
Announcement
Laroussia Dam to Sidi Salem Dam
(Mejerda River)
- Embankment: L=70.6km, H=0.5-2.5m
- Channel excavation/widening:
81.2km
- Sluice gate:
72 nos.
- Revetment
- Renewal of existing bridge: 1 no.
2000
Minister of
Agriculture
Store
CRDA
C.P.
DGRE
Call
Center
Dam
GP7
35
m
20 year; optim. y 2030
B
20 year; standard
3000
Tobias
Mobile Dam
Coordination at Central Level
Data Transmission
Telemetry_Rainfall
Telemetry_WaterLevel
Telemetry_Rainfall-WaterLevel_dam
Telemetry_Rainfall-WaterLevel_river
Proposed gauge: Rainfall
Proposed gauge: Water Level
Proposed gauge: Rainfall / WaterLevel
15.0~50.0
Typical Cross Section
100 year; standard
4000
Q (m3/s)
1:2.0
River channel excavation
5000
Bou Heurtma
2.0~10.0
Freeboard
1.0
effect of
coordinated
operation
Sidi Salem Reservoir
reservoirs to be
coordinated
discharge reference
points
Strengthening of Existing FFWS and Evacuation &
Flood Fighting System
River Improvement
2.0 ~10.0
Legend:
NON-STRUCTURAL MEASURES
nkmen
n)
avatio
o Exc
t (+ N
Zone U2:
Emba
Sidi Salem Dam to Confluence with
Mellegue River
(Mejerda River)
- Embankment:
L=67.5km, H=2.5-4.5m
- Channel excavation/widening:
42.7km
- Sluice gate:
42 nos.
- Revetment
- Renewal of existing aqueduct
with foot bridge:
1 no.
(Bou Salem Bypass Channel)
- Length:
7.7km
- Channel bottom width 25m
Main Concept (sample image)
Levee embankment
Limit of flood prone area
(100-yr probable flood)
Measure (1)
Restriction of construction
Measure
of new house/building in
(2)
urban area
Agricultural
Area
Urban
Measure (2) Area
discontinued levee
Measure (3)
Promotion of change of
Measure cropping pattern in flood
prone area (100-yr
(1)
Probable Flood)
fuse levee
Existing road
Construction of fuse
Measure levee, discontinued levee
and secondary levee (set(3)
back levee)
Limit of flood prone area
(100-yr probable flood)
Measure (1)
Agricultural
Set-back levee
Area
(heightening of existing road)
Restriction
DWL
Change of
cropping pattern
Cross Se ction
F-39
F-40
F-41
F-42
࿑ࡔࠫࠚ࠭ࠛ࡞ࡃࡉࡃࠗࡄࠬ᳓〝
<QPG&ᐔ㕙࿑
MEJEZ EL BAB BYPASS CHANNEL ( ZONE D1 )
PLAN
F-43