-
j
MALABAA EARH EMBANKMENT DAM IDENTIFICATION, FEASIBILITY AND
DETAILED DESIGN
Malabaa Earth embankment Dam is proposed to be a 2.5m high dam,
volume 200,000m3 and it is to serve about 114 people located in
Darade Sub-location with Lagha Darade as the source, North Horr
Constituency
-
1
-
ITEM DESCRIPTION
DRAWING
NUMBER NUMBERS
A. LAYOUTS
1
GOOGLE IMAGE OF LAYOUT OF
MALABAA DAM SITE 1
2
LOCATION OF MALABAA DAM ON TOPO MAP 1
3 PLAN LAYOUT SN/01-01 1
4
DIMENSIONS AND DETAILS LAYOUT SN/01-06 1
B. CROSS SECTIONS
DRAWING INDEX SHEET
DESIGN DRAWINGS
MALABAA EARTH EMBANKMENT DAM
-
ITEM DESCRIPTION
DRAWING NUMBER NUMBERS
DRAWING INDEX SHEET
DESIGN DRAWINGS
MALABAA EARTH EMBANKMENT DAM
1
CROSS SECTION PROFILE@CENTER OF DAM
SN/01-03 SHEET 3 1
2
LONGITUDINAL SECTION @
CENTER OF DAM
SN/01-02 SHEET
002 1
3
LONGITUDINAL CROSS SECTION @ CENTRE OF SILT TRAP
SN/01-05 SHEET 005 1
4
CROSS SECTION @CENTER OF
SPILLWAY
SN/01-04 SHEET
04 1
C. TYPICAL EMBANKMENT
-
ITEM DESCRIPTION
DRAWING NUMBER NUMBERS
DRAWING INDEX SHEET
DESIGN DRAWINGS
MALABAA EARTH EMBANKMENT DAM
1
TYPICAL EMBANKMENT SECTIONS FOR PROPOSED DAM
SN/01-9 SHEET NO. 9 1
2
EMBANKMENT AND RESERVOIR
LAYOUT PLAN
SN/01-10 SHEET
10 1
3 EMBANKMENT DETAILS SN/01-11 TO 13 3
D. STANDARD DRAWINGS
1 WATER PAN SPECIAL SN/01-08 2
2
SPILLWAY FOR SMALL EARTH DAMS, TYPE DRAWING (II) M.W.I 2
-
ITEM DESCRIPTION
DRAWING NUMBER NUMBERS
DRAWING INDEX SHEET
DESIGN DRAWINGS
MALABAA EARTH EMBANKMENT DAM
3
INTAKE AND VALVE CHAMBER FOR SMALL DAMS 003-TYPE-014 2
4 COMMUNAL WATER POINT 018-TYPE-006A 1
5
CATTLE TROUGH TYPE DRAWING IV-SHOATS AND CALVES MWI 1
6 CATTLE TROUGH 018-TYPE-026A 1
7 EROSION PROTECTION WORKS ML01/DD01 1
TOTAL 23
-
457500 457500 457500
460000 460000 46000021
7500
2175
00
2200
0022
0000
2225
0022
2500
PROPOSED DAM
DESIGNED BY: Project Title:Scale:
Date:
1:10,000
SURVEYED BY:
DRAWN BY:
CHECKED BY:
G. N.
J.MUE
Drg. No.
SN/01-01
SHEET 001
APRILL . 2020
ENG. B.KASABULI
EXISTING MURRAM ROAD
EXISTING BUILDINGS
LEGEND
L AGA
NOTES
1. All dimensions are in M unless
otherwise specified
2. All dimensions to be read off and
not scaled.
3. Any discrepancies with dimensions
to be notified to the Engineer before
commencement of work.
CLIENT ENGINEER
Drg. Title:Plan layout
DIRECTOR WATER & SEWERAGE
SERVICES
MINISTRY OF WATER SANITATION & IRRIGATION
REPUBLIC OF KENYA
EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAM
PROJECT
-
268.0
126.5 159.5
301.0
50.0
40.0
32.042.0PAN @ 200,000 M CUBIC
5.5 M DEEP
EMBARKMENT TOP
SIDE SLOPES
EMBARKMENT SLOPES
EM
BARKM
EN
T TO
P
SID
E SLO
PES
EM
BARKM
EN
T SLO
PES
SIDE SLOPES
EMBARKMENT TOP
EMBARKMENT SLOPES
INLET CHANNNEL
O
V
E
R
F
L
O
W
C
H
A
N
N
N
E
L
SILT TRAP
DESIGNED BY: Project Title:Scale:
Date:
1:10,000
SURVEYED BY:
DRAWN BY:
CHECKED BY:
Drg. No.
SN/01-06
SHEET 006
APRILL . 2020
LEGEND
NOTES
1. All dimensions are in M unless
otherwise specified
2. All dimensions to be read off and
not scaled.
3. Any discrepancies with dimensions
to be notified to the Engineer before
commencement of work.
CLIENT ENGINEER
G. N.
J.MUE
Eng. C.OWITI
Drg. Title:Plan Dimensions and Details layout
EXISTING MURRAM ROAD
EXISTING BUILDINGS
L AGA
DIRECTOR WATER & SEWERAGE
SERVICES
MINISTRY OF WATER SANITATION & IRRIGATION
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAM
PROJECT
EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
-
cross Profile
STATION
EXISTING GROUND LEVEL (m)
EXCAVATED LEVELS
SOIL TYPE
O.G.L LEVEL
EXCAVATION LEVEL
EMBARKMENT
EMBARKMENT
0+
00
0
0+
05
0
0+
10
0
0+
15
0
0+
20
0
0+
25
0
0+
30
0
0+
35
0
0+
39
0
0+250
0+300
0+350
0+400
CROSS @ CENTER OF A DAM
LONGTIDUNAL @ CENTER OF A DAM
LEGEND
EXISTING MURRAM ROAD
TRENCH BOTTOM LEVELS
BUILDINGS
AIR-STRIP
HORIZONTAL SCALE-1:2,000
VERTICAL SCALE-------1:100
SCALE
LAGAS
CLIENT DESIGNED BY:
Scale:
Date:
As shown
SURVEYED BY:
DRAWN BY:
APPROVED BY:
ENGINEER
Drg. No.
SN/01-03
SHEET 03
APRILL. 2020
NOTES
1. All dimensions are in mm unless otherwise specified
2. All dimensions to be read off and not scaled.
3. Any discrepancies with dimensions to be notified to the
Engineer before
commencement of work.
4. All water pipes are all uPVC except where it crosses the laga
GI is used
NOTES
5. A nominal minimum cover for all pipes shall be 0.6m
6. Marker posts shall be provided along pipelines at every
200m, except where they follow permanent roads
PROJECT TITTLE :
G. N.
J.MUE
ENG .B.KASABULI
DRG. TITLE:CROSS -SECTION PROFILE SECTION @ CENTER OF DAM
DIRECTOR WATER & SEWERAGE SERVICES
MINISTRY OF WATER SANITATION &
IRRIGATION
REPUBLIC OF KENYA
EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAM
PROJECT
-
long Profile
STATION
EXISTING GROUND LEVEL (m)
EXCAVATED LEVELS
SOIL TYPE
O.G.L LEVEL
EXCAVATION LEVEL
EMBARKMENT
0+100
0+150
0+200
0+250
0+300
0+
00
0
0+
05
0
0+
10
0
0+
15
0
0+
20
0
0+
25
0
0+
30
0
0+
35
0
0+
40
0
0+
45
0
0+
50
0
0+
52
3
0+000
0+050
0+100
0+150
0+200
0+225
0+00
0
0+05
0
0
+
1
0
0
0
+
1
5
0
CROS
S @
CEN
TER
OF A
DAM
LONGTIDUNAL @ CENTER OF A DAM
CROS
S @
CEN
TER
OF
SLT T
RAP
LEGEND
EXISTING MURRAM ROAD
TRENCH BOTTOM LEVELS
BUILDINGS
AIR-STRIP
HORIZONTAL SCALE-1:2,000
VERTICAL SCALE-------1:100
SCALE
LAGAS
CLIENT DESIGNED BY:
Scale:
Date:
As shown
SURVEYED BY:
DRAWN BY:
APPROVED BY:
ENGINEER
Drg. No.
SN/01-02
SHEET 02
APRILL. 2020
NOTES
1. All dimensions are in mm unless otherwise specified
2. All dimensions to be read off and not scaled.
3. Any discrepancies with dimensions to be notified to the
Engineer before
commencement of work.
4. All water pipes are all uPVC except where it crosses the laga
GI is used
NOTES
5. A nominal minimum cover for all pipes shall be 0.6m
6. Marker posts shall be provided along pipelines at every
200m, except where they follow permanent roads
PROJECT TITTLE :
G. N.
J.MUE
ENG .B.KASABULI
DRG. TITLE:LONGTIDUNAL -SECTION PROFILE SECTION @ CENTER OF
DAM
DIRECTOR WATER & SEWERAGE SERVICES
MINISTRY OF WATER SANITATION &
IRRIGATION
REPUBLIC OF KENYA
EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAM
PROJECT
-
spll Profile
STATION
EXISTING GROUND LEVEL (m)
EXCAVATED LEVELS
SOIL TYPE
O.G.L LEVEL
EXCAVATION LEVEL
0
+
0
0
0
0
+
0
5
0
0
+
1
0
0
0
+
1
5
0
0
+
2
0
0
0
+
0
0
0
0
+
0
5
0
0
+
1
0
0
0
+
1
5
0
0
+
2
0
0
0
+
2
2
5
0
+
0
0
0
0
+
0
5
0
0
+
1
0
0
0
+
1
5
0
0
+
2
0
0
0
+
2
5
0
0
+
2
7
0
CROSS @
CENTER
OF SLT TRA
P
LEGEND
EXISTING MURRAM ROAD
TRENCH BOTTOM LEVELS
BUILDINGS
AIR-STRIP
HORIZONTAL SCALE-1:2,000
VERTICAL SCALE-------1:100
SCALE
LAGAS
CLIENT DESIGNED BY:
Scale:
Date:
As shown
SURVEYED BY:
DRAWN BY:
APPROVED BY:
ENGINEER
Drg. No.
SN/01-05
SHEET 05
APRILL. 2020
NOTES
1. All dimensions are in mm unless otherwise specified
2. All dimensions to be read off and not scaled.
3. Any discrepancies with dimensions to be notified to the
Engineer before
commencement of work.
4. All water pipes are all uPVC except where it crosses the laga
GI is used
NOTES
5. A nominal minimum cover for all pipes shall be 0.6m
6. Marker posts shall be provided along pipelines at every
200m, except where they follow permanent roads
PROJECT TITTLE :
G. N.
J.MUE
ENG .B.KASABULI
DRG. TITLE:LONGTIDUNAL -SECTION PROFILE SECTION @ CENTER OF
SPILLWAY
DIRECTOR WATER & SEWERAGE SERVICES
MINISTRY OF WATER SANITATION &
IRRIGATION
REPUBLIC OF KENYA
EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAM
PROJECT
-
silt Profile
STATION
EXISTING GROUND LEVEL (m)
EXCAVATED LEVELS
SOIL TYPE
O.G.L LEVEL
EXCAVATION LEVEL
0+000
0+050
0+100
0+150
0+
00
0
0+
05
0
0+
10
0
0+
15
0
0+
20
0
0+
22
5
0+
000
0+
050
0
+
1
0
0
0
+
1
5
0
0
+
2
0
0
0
+
2
5
0
0
+
2
7
0CROSS @ CENTER OF SLT TRAP
LEGEND
EXISTING MURRAM ROAD
TRENCH BOTTOM LEVELS
BUILDINGS
AIR-STRIP
HORIZONTAL SCALE-1:2,000
VERTICAL SCALE-------1:100
SCALE
LAGAS
CLIENT DESIGNED BY:
Scale:
Date:
As shown
SURVEYED BY:
DRAWN BY:
APPROVED BY:
ENGINEER
Drg. No.
SN/01-04
SHEET 04
APRILL. 2020
NOTES
1. All dimensions are in mm unless otherwise specified
2. All dimensions to be read off and not scaled.
3. Any discrepancies with dimensions to be notified to the
Engineer before
commencement of work.
4. All water pipes are all uPVC except where it crosses the laga
GI is used
NOTES
5. A nominal minimum cover for all pipes shall be 0.6m
6. Marker posts shall be provided along pipelines at every
200m, except where they follow permanent roads
PROJECT TITTLE :
G. N.
J.MUE
ENG .B.KASABULI
DRG. TITLE:CROSS-SECTION PROFILE SECTION @ CENTER OF SILT
TRAP
DIRECTOR WATER & SEWERAGE SERVICES
MINISTRY OF WATER SANITATION &
IRRIGATION
REPUBLIC OF KENYA
EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAM
PROJECT
-
3.0
1.0
3.51
15mm HDPE
LINING MATERIAL
8.50
Anchor Trench
Normal Water Level
Full Reservoir Level
0.5m Free
Board
Anchor Trench
1.0
2.5
DAM EMBANKMENT TYPICAL SECTION FOR ERSE TENO DAM
(homogeneous embankment with membrane lining)
Rock or firm ground as
directed by dam engineer
6.70
2.0019
5.5007
DESCRIPTION
REVISIONS
DATEDESCRIPTION
DATE
Scales:
Designed By: Eng. B.
Approved By:
ENGINEERCLIENT
Sht No:
DESCRIPTION
REVISIONS
DATEDESCRIPTION
DATE
Scales:
Designed By: Eng. B. K
Surveyed By: G.N.N
Date:APRILL 2020
TITTLE:
Drawn By: J.MUE
Sht No:
09
As Shown
PROJECT:
TYPICAL EMBANKMENT CROSS-SECTION
DRAWING NO:SN/01-9
FOR PROPOSED DAMS/PANS
DIRECTOR WATER & SEWERAGE SERVICES
MINISTRY OF WATER SANITATION & IRRIGATION
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAM
PROJECT
EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAM
PROJECT
AutoCAD SHX Text----
-
Bottom 2
B1B4
B2B3
B4
B2
B3
B1
Bottom 3
Bottom 4 Bottom 1
INLET
LAYOUT PLAN
BYNO. DATE
SURVEYD BY :DESIGNED
APPROVEDG.N.N
DRAWN BY J.MUE
PROPOSED MALABAA EARTH DAMPROJECT
DWG No.
Scale: 1:2500
DESCRIPTIONREVISIONS
SHEET 010DATE: APRILL 2020EMBANKMENT AND MAIN RESERVOIR
LAYOUT PLANENG.B.KASABULI
DIRECTOR WATER & SEWERAGE SERVICES
MINISTRY OF WATER SANITATION & IRRIGATION
REPUBLIC OF KENYA
ENGINEER
CLIENT
Drg .NO.SN/01-13 EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
-
DAM SECTION AT Bottom 2
Slope 1:3
Slope 1:2.5
DAM SECTION AT Bottom 3
Slope 1:3Slop
e 1:2.5
DAM SECTION AT Bottom 1
Slope 1:3
Slope 1:2.5
DAM SECTION AT Bottom 4
Slope 1:3Slop
e 1:2.5 Free Board
BYNO. DATE
SURVEYED BYDESIGNED
APPROVEDG.N.N
DRAWN BY J.MUEDWG No.
Scale: 1:300
DESCRIPTIONREVISIONS
SHEET 011DATE: MARCH 2020EMBANKMENT CROSS SECTIONS AT
B4-B1 AND B2-B3ENG.B.KASABULI
DIRECTOR WATER & SEWERAGE SERVICES
MINISTRY OF WATER SANITATION & IRRIGATION
REPUBLIC OF KENYA
ENGINEER
CLIENT
Drg .NO.SN/01-11 EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAMPROJECT
AutoCAD SHX TextCrest Level/OGL 514
AutoCAD SHX TextWater Rest Level 513
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextBed level 508.50
AutoCAD SHX TextEmbankment Bed level 508.50
AutoCAD SHX TextCrest Level/OGL 514
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextEmbankment Bed level 508.50
AutoCAD SHX TextOgl 512.70
AutoCAD SHX TextOgl 512.80
AutoCAD SHX TextWater Rest Level 513
AutoCAD SHX TextBed level 283.5
AutoCAD SHX TextCrest Level 514
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextEmbankment Bed level 508.50
AutoCAD SHX TextCrest Level 514
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextEmbankment Bed level 508.50
AutoCAD SHX TextHand placed riprap/stone pitching
AutoCAD SHX TextLIMIT OF EXCAVATION
AutoCAD SHX TextLIMIT OF EXCAVATION
AutoCAD SHX TextLIMIT OF EXCAVATION
AutoCAD SHX TextLIMIT OF EXCAVATION
AutoCAD SHX TextWater Rest Level 513
AutoCAD SHX TextWater Rest Level 513
-
DAM SECTION AT Bottom 1Scale 1:250
Slope 1:3 Slope 1:2.5
DAM SECTION AT Bottom 4Scale 1:250
Slope 1:3Slop
e 1:2.5 Free Board
Slope 1:2.5
BYNO. DATE
SURVEYED BYDESIGNED
APPROVEDG.N.N
DRAWN BY J.MUEDWG No.
Scale: 1:300
DESCRIPTIONREVISIONS
SHEET 012DATE: APRILL 2020 EMBANKMENT CROSS SECTION AT
B4-B1 LINING DETAILSENG.B.KASABULI
DIRECTOR WATER & SEWERAGE SERVICES
MINISTRY OF WATER SANITATION & IRRIGATION
REPUBLIC OF KENYA
ENGINEER
CLIENT
Drg .NO.SN/01-12 EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAMPROJECT
AutoCAD SHX TextOgl 512.20
AutoCAD SHX TextOgl 512.10
AutoCAD SHX TextWater Rest Level 513
AutoCAD SHX TextBed level 508.50
AutoCAD SHX TextCrest Level 514
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextEmbankment Bed level where there is lining
508.50
AutoCAD SHX TextCrest Level 514
AutoCAD SHX TextBed level where there is dam bottom lining
508.20
AutoCAD SHX TextEmbankment Bed level where there is lining
508.50
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextLIMIT OF EXCAVATION WHERE LINING IS REQUIRED AT
DAM BOTTOM
AutoCAD SHX Text300mm Compacted clay lining where directed
AutoCAD SHX TextLIMIT OF EXCAVATION
-
DAM SECTION AT Bottom 2
Slope 1:3
Slope 1:2.5
DAM SECTION AT Bottom 4
Slope 1:3
Free Board
DAM SECTION AT Bottom 1Scale 1:250
Slope 1:3
DAM SECTION AT Bottom 3
Slope 1:3 Slope 1:2.5
BYNO. DATE
SURVEYED BYDESIGNED
APPROVEDG.N.N
DRAWN BY J.MUE
Drg .NO.SN/01-13DWG No.
Scale: As shown
DESCRIPTIONREVISIONS
SHEET 014DATE: APRILL 2020EMBANKMENT LONGITUDINAL SECTION
B1-B2 AND 4-3ENG.B.KASABULI
DIRECTOR WATER & SEWERAGE SERVICES
MINISTRY OF WATER SANITATION & IRRIGATION
REPUBLIC OF KENYA
ENGINEER
CLIENT
EWASO NYIRO NORTH
DEVELOPMENT AUTHORITY
REPUBLIC OF KENYA
PROPOSED MALABAA EARTH DAMPROJECT
AutoCAD SHX TextOgl 511.50
AutoCAD SHX TextCrest Level 514
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextEmbankment Bed level 508.50
AutoCAD SHX TextWater Rest Level 513
AutoCAD SHX TextBed level 892.5
AutoCAD SHX TextCrest Level/OGL 514
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextEmbankment Bed level 508.50
AutoCAD SHX TextCrest Level/OGL 514
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextEmbankment Bed level 508.50
AutoCAD SHX TextCrest Level 514
AutoCAD SHX TextOgl 512
AutoCAD SHX TextKey Trench Level 508.20
AutoCAD SHX TextEmbankment Bed level 508.50
AutoCAD SHX TextLIMIT OF EXCAVATION
AutoCAD SHX TextLIMIT OF EXCAVATION
AutoCAD SHX TextLIMIT OF EXCAVATION
AutoCAD SHX TextLIMIT OF EXCAVATION
AutoCAD SHX TextWater Rest Level 513
AutoCAD SHX TextWater Rest Level 513
AutoCAD SHX TextWater Rest Level 513
COVER MALABAA.DAMx.pdf (p.1-2)drawings-INDEX Malabaa Damx.pdf
(p.3-6)LAYOUT COMBINED.pdf (p.7-11)LAYOUT SEPARATION PAGE.pdf
(p.1)LOCATION OF mALABAA DAM-PG 1.pdf (p.2)DERATI-14.-With Maraba
Dam-PG2.pdf (p.3)LAYOUT-PLAN.-PG 3.pdf (p.4)PLAN
DIM-PLAN-PG 4.pdf (p.5)PLAN
CROSS SECTIONS COMBINED.pdf (p.12-16)CROSS SECTIONS SEPARATION
PAGE.pdf (p.1)CROSS-SECTION-cross-PG1.pdf (p.2)cross
CROSS-SECTION-long-PG2.pdf (p.3)long
CROSS-SECTION-overflow-PG3.pdf (p.4)overflow
CROSS-SECTION-silt.-PG4.pdf (p.5)silt
EMBANKMENT COMBINED.pdf (p.17-22)TYPICAL DAM SEPARATION PAGE.pdf
(p.1)BIG Typical Dam Embankment X-section-Sheet - (1).pdf
(p.2)Sheet - (1)
Dam Embankment details-LAYOUT LAYOUT PLAN.pdf (p.3)LAYOUT LAYOUT
PLAN
Dam Embankment details-Dam Embankment SECTIONSB3B1 LINING.pdf
(p.4)Dam Embankment SECTIONSB3B1 LINING
Dam Embankment details-Dam Embankment SECTIONSB4B1.pdf (p.5)Dam
Embankment SECTIONSB4B1
Dam Embankment details-LONG SECTIONSB1B2B4B3.pdf (p.6)LONG
SECTIONSB1B2B4B3
