Achievements: tunnels & microtunnels

Bessac constructs tunnels and microtunnels worldwide.

Map of our achievements

Toulouse - Metro line B - Pkg 3
Type of structure: : Tunnel
Area of expertise : Subway
Year : 2001/2005
Internal diameter 4660
Work length : 1100
Hong Kong - Metro West Island Line - Contract n° 703
Type of structure: : Tunnel
Area of expertise : Subway
Year : 2009/2013
Internal diameter 5300
Work lenght : 1520
Singapore - Metro - Thomson Line - Lot T219 - Tunnel & piperoof
Type of structure: : Tunnel
Area of expertise : Subway
Year : 2014/2017
Internal diameter 5800
Work length : 1675
Paris - Metro line 14 - Extension to the north - Pkg 2
Type of structure: : Tunnel
Area of expertise : Subway
Year : 2014/2019
Internal diameter 7750
Work length : 2097
Nice - Tramway - Underground section
Type of structure: : Tunnel
Area of expertise : Subway
Year : 2015/2019
Internal diameter : 8500
Work length : 3200
Grand Paris - Metro line 15 South - Package T2A
Type of structure: : Tunnel
Area of expertise : Subway
Year : 2017/2021
Internal diameter : 8700
Work length : 7206
Grand Paris - Metro line 15 South - Package T3A
Type of structure: : Tunnel
Area of expertise : Subway
Year : 2017/2021
Internal diameter : 8700
Work length : 3900
Toulouse - Métro Connexion Ligne B Package 2
Type of structure : Tunnel
Area of expertise : Subway
Year : 2023/2026
Internal diameter : 4660
Work length : 517
Toulouse - Metro line C - Package 4
Type of structure : Tunnel
Area of expertise : Subway
Year : 2023/2027
Internal diameter : : 8500
Work length : 4160
Paris area - SIAAP - Waste water tunnel VL10 part 2
Type of structure: Tunnel
Area of expertise : Water & Sewage
Year : 2003/2005
Internal diameter : 4000
Work length : 1850
Hong Kong - CLP electrical cable tunnel
Type of structure: Tunnel
Area of expertise : Technical Galleries
Year : 2003/2005
Internal diameter : 3200
Work length : 818
Sables d'Olonne - Sea outfall
Type of structure: Microtunnel
Area of expertise : Maritime Works
Year : 2005/2006
Internal diameter : 1400
Work length : 623
Algiers - Oued M'Kacel storm water tunnel
Type of structure : Tunnel
Area of expertise : Water & Sewages
Year : 2005/2011
Internal diameter : 4000
Work length : 2850
Annemasse - Waste water tunnel
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2006/2007
Internal diameter : 1200
Work length : 360
Geneva area - Choully waste water tunnel
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2007/2009
Internal diameter : 2500
Work length : 2300
Bogota - IFT waste water tunnel (Interceptor Fucha Tunjuelo)
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2007/2010
Internal diameter : 3750
Work length 9443
Paris area - SIAAP - Waste water tunnel VL9 - Pkg n° 1
Type d'ouvrage : Tunnel
Area of expertise : Water & Sewage
Year : 2007/2011
Internal diameter : 2500
Work length : 1280
Grand Lyon - Waste water tunnel
Type d'ouvrage : Microtunnel
Area of expertise : : Water & Sewage
Year : 2008/2009
Internal diameter : 2000
Work length : 968
Flamanville - EDF - Nuclear plant sea outfall
Type d'ouvrage : Tunnel
Area of expertise : : Maritime Works
Year : 2008/2010
Internal diameter : 5000
Work length : 890
Bogota - ITB waste water tunnel (Interceptor Tunjuelo Bajo)
Type d'ouvrage : Microtunnel
Area of expertise : Water & Sewage
Year : 2008/2011
Internal diameter :/b> 2750
Work length : 3729
Limoges - ZAC Ester rain water tunnel
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2009/2010
Internal diameter : 1800
Work length : 550
Rabat - Sea outfall
Type of structure : Microtunnel
Area of expertise : Maritime Works
Year : 2009/2010
Internal diameter : 2000
Work length : 803
Paris area - CPCU - Gallery for urban heating network
Type of structure : Tunnel
Area of expertise : Technical Galleries
Year : 2009/2011
Internal diameter : 3080
Work length : 2113
Hong Kong - Metro West Island Line - Contract n° 703
Type of structure : Tunnel
Area of expertise : Subway
Year : 2009/2011
Internal diameter : 5300
Work length : 1520
Nimes - Cadereau d'Ales - Rain water tunnel
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2010/2011
Internal diameter : 1800
Work length : 922
Mexico -Tunnel Emisor Oriente - Tramos 3 & 4
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2010/2013
Internal diameter : 7800
Work length : 20000
Rouen - RTE - Electrical cables tunnel
Type of structure : Microtunnel
Area of expertise : Technical Galleries
Year : 2011/2012
Internal diameter : 1200
Work length : 650
Dunkerque - Gas Terminal - Water transfer tunnel
Type of structure : Tunnel
Area of expertise : Oil & gaz
Year : 2011/2015
Internal diameter : 3000
Work length : 5000
Bata - Waste water microtunnel
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2012/2014
Internal diameter : 1500
Work length : 5800
Bidart - Sea outfall
Type of structure : Microtunnel
Area of expertise : Maritime Works
Year : 2012/2015
Internal diameter : 1600
Work length : 560
Frontignan - BRL - Microtunnels under railways
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2013
Internal diameter : 900
Work length : 150
Casablanca - Sidi Bernoussi WWTP sea outfall
Type of structure : Microtunnel
Area of expertise : Maritime Works
Year : 2013/2014
Internal diameter : 2100
Work length : 1057
Uccle - Rain water storage tunnel
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2015/2018
Internal diameter : 1660
Work length : 1300
San José - wastewater transfer tunnel
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2014/2016
Internal diameter : 2500
Work length : 1800
Antofagasta - Sea intakes and outfall - Project Escondida Water Supply
Type of structure : Microtunnel
Area of expertise : Maritime Works
Year : 2014/2016
Internal diameter : 2000
Work length : 1380
Miami - Norris Cut Project - Waste water main
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2013/2016
Internal diameter : 2500
Work length : 1600
Georgia & Azerbaijan - South Caucasus Pipeline Expansion Project
Type of structure : Microtunnel
Area of expertise : Oil & gaz
Year : 2014/2017
Internal diameter : 1800
Work length : 600
GRT Gaz - Undercrossing of Ain river
Type of structure : Microtunnel
Area of expertise : Oil & gaz
Year : 2017/2018
Internal diameter : 1400
Work length : 440
Doha - South area wastewater main - IDRIS project - Pkg MTS01
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2015/2019
Internal diameter : 3000
Work length : 16170
Nice - Tramway - Underground section
Type of structure : Tunnel
Area of expertise : Subway
Year : 2015/2019
Internal diameter : 8500
Work length : 3200
Paris Area - Rain water tunnel of Livry Gargan
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2016/2018
Internal diameter : 2000
Work length : 620
Paris - SIAAP - Water transfer tunnel
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2016/2018
Internal diameter : 5000
Work length : 1120
Trans Adriatic Pipeline - Corovode microtunnels & river crossings
Type of structure : Microtunnel
Area of expertise : Oil & gaz
Year : 2017/2018
Internal diameter : 1800
Work length : 1160
Salé - Sea outfall
Type of structure : Microtunnel
Area of expertise : Maritime Works
Year : 2017/2019
Internal diameter : 1900
Work length : 800
Rouen - Emerald Water treatment plant
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2017/2019
Internal diameter : 1800
Work length : 1160
San Francisco - Sewage tunnel - SVCW project
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2017/2021
Internal diameter : 4000
Work length : 5300
Auckland - Project CRL C6 - Mont Eden rain water tunnel
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2018/2019
Internal diameter : 2000
Work length : 425
Guayaquil - Wastewater main
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2018/2020
Internal diameter : 1900
Work length : 4000
Meudon - Safety gallery of the railway tunnel
Type of structure : Tunnel
Area of expertise : Technical Galleries
Year : 2018/2020
Internal diameter : 3500
Work length : 1700
Quebrada Blanca - HV Cable tunnel
Type of structure : Microtunnel
Area of expertise : Technical Galleries
Year : 2019/2021
Internal diameter : 2500
Work length : 980
Clichy - T20 Tunnel
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2019/2021
Internal diameter : 3500
Work length : 184
Vancouver - Annacis WWTP river outfall
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2019/2024
Internal diameter : 4200
Work length : 800
Paris Austerlitz - Storage/restitution basin
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2020/2023
Internal diameter : 2500
Work length : 610
San José - Tiribi South Colectors
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2020/2023
Internal diameter : 1200-1500
Work length : 5941
Champigny SMarne - Stormwater treatment station
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2020/2024
Internal diameter : 800-1000-1200-1800
Work length : 941
Abidjan - Abobo
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2021/2022
Internal diameter : 1800
Work length : 980
Toronto – Silverthorn storm sewer
Type of structure : Tunnel
Area of expertise : Water & Sewage
Year : 2021/2023
Diamètre intérieur : 4500
Longueur ouvrage : 2400
Paris area - Sewer for transferring effluents WWTP
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2021/2023
Diamètre intérieur : 1600
Longueur ouvrage : 913
Abidjan - Baleine sea outfall
Type of structure : Microtunnel
Area of expertise : Maritime Works
Year : 2022/2023
Diamètre intérieur : 1600
Longueur ouvrage : 328
Cannes Croisette - Restructuring of sewage network
Type of structure : Microtunnel
Area of expertise : Water & Sewage
Year : 2022/2024
Internal diameter : 1600
Work length : 2300
HADERA - Desalination plant outfall
Type of structure : Tunnel
Area of expertise : Maritime Works
Yeat : 20234
Internal diameter : 3400
Work length : 2030
Bay of Biscay - Electricity interconnection
Type of structure : Microtunnel
Area of expertise : Maritime Works
Year : 2023/2025
Internal diameter : 2300
Work length : 3845

 Maritime Works

Oil & Gaz Energy 

 Technical Galleries

 

Subways

  Water & Sewage

You have a project?

 

Contact Pascal MOLINER

Phone: +33 5 61 37 63 63

Mail: commercial@bessac.com

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Jean-Camille BROCHARD est à votre écoute

Téléphone : + 33 5 61 37 63 63

Mail : industry@bessac.com