Name and Location
of Project
Client
Value
($ 000 000)
Date
Project Details
Snake - Pit PWHQ Upgrade
ANKARA
(60% of Kiska - ANO JV)
MSB
29.0
1997 - 00
1 112
45 000
27 000
11 760
 m
m3
m3
m3 		Tunnel (4 m dia.)
Open excavation
Tunnel excavation
Tunnel concrete
Greenbelt Route Park Road Tunnels
WASHINGTON DC
(40% of Kajima - Kiska JV)
WMATA
105.0
1994 - 98
2 x 3 200
lf Twin tunnels (16'8" dia.) in soft ground
9" Precast segment initial lining
16" Final lining
Greenbelt Route 14TH St Tunnels
WASHINGTON DC
(60% of Kiska - Kajima JV)
WMATA
65.0
1994 - 97
2 x 3 200
lf Twin tunnels (16'8" dia.) in soft ground
9" Precast segment initial lining
16" Final lining
Shafts 21B - 22B for Tunnel 3 Stage 2
NEW YORK
NY-DEP
48.8
1992 - 94
199
.
178
m
.
m 		Shaft 21B : 12 - 7 m diameter
(soft ground freezing)
Shaft 22B : 12 - 4 m diameter
(soft ground freezing)
Subway Tunnels 2. Stage
ISTANBUL
(10% of Tekfen JV)
Municipality
206.4
1992 - 00
8 247
524 000
147 500
202 000
359 000
81 500
 m
m3
m3
m2
m3
m3 		Tunnel (5.4 m dia.)
Excavation
Concrete
Shotcrete
Tunnel excavation
Tunnel concrete
Halle Tunnel
ADIYAMAN
DSI
4.1
1986 - 90
33 300
14 800
12 400
 m3
t
m3 		Tunnel excavation
Shotcrete
Concrete lining
Camlidere Water Supply Tunnels 1 - 2
ANKARA
DSI
30.7
1981 - 88
7 100
100 000
42 000
77 000
 m
m3
t
m3 		Tunnel (3.4 m dia., in hard rock)
Tunnel excavation
Shotcrete
Concrete
Storm Water Drainage Tunnel & Canals
MAKKAH
Ministry of
Municipal &
Rural Affairs
(REDEC)
88.5
1980 - 84
7
20
100 000
55 000
2 000
120
300 000
 km
km
m3
m3
m
m
m3 		Tunnel
Canal
Excavation
Concrete
Drilling 28" diameter hole
Sinking 7 m diameter shaft
Canal excavation with sheet piling
Kinik Water Supply Tunnel
ANKARA
DSI
213.8
1974 - 87
15 742
348
500 000
982 000
270 000
 m
m
m3
m3
m3		 Tunnel (3.4 m dia., in soft rock)
Shaft
Tunnel excavation
Open excavation
Tunnel concrete
Phosphate Research Galleries
MAZIDAG
ETIBANK
2.2
1975 - 77
8 000
 m Tunnel (from 40 accesses)
Transport Gallery
KURE
KBI
1.3
1972
341.5
 m Tunnel (completed in 3 months)
Capali Lake Discharge Tunnel
Dinar, AFYON
DSI
1.1
1970 - 72
1 108
m Water tunnel with concrete lining
Pipeline Tunnel
Murgul, ARTVIN
KBI
0.9
1969 - 70
2 107
m Tunnel (in mountainous area)
Tutupbeli Tunnel
KONYA
DSI
12.2
1969 - 71
3 500
90 000
30 000
 m
m3
m3 		Tunnel (4 m dia.)
Excavation
Concrete
522.6