• ALERT!
    Are you signed up to our free weekly Alert email?
    Take a moment to check and stay on top of the
    tunnelling world's news and views
Miami prepares for TBM arrival Jun 2011
TunnelTalk reporting
All was ready dockside for approach of the ship carrying the components of the Herrenknecht EPBM that will excavate the subsea drives of Miami's newport link highway. Hundreds of crates together with the main components of the 42ft (12.8m) diameter, $45 million machine will be off-loaded transfer to the job site and reassembly in the work-site launch bay during June/July.
42ft (12.8m) HerrenknechtEPBM shipped from Schwanau

42ft (12.8m) Herrenknecht EPBM shipped from Schwanau

Following a champagne dedication in September, the machine will set off on its first mile long drive under the Government Cut shipping channel, from Watson Island to Dodge Island, before taking a turn and driving the parallel twin tube back again.
The machine is procured by the Miami Access Tunnel (MAT), the 35-year PPP concessionaire engaged by the Florida Department of Transportation to design-build-finance-operate-and-maintain the new $1.3 billion highway. MAT is led by Bouygues of France, which has signed a $607 million design-build contract with Bouygues Publics Trauvaux, the heavy civil construction division of the group, to build the project that centers on excavation by the two 3,900ft (1.1km) long tunnels. The new route will divert heavy port traffic away from the city streets of Miami and direct it instead through the tunnel and via a widening of the MacArthur Causeway and bridge from Watson Island to interstate highway I-395.
Excavation of the tunnel by the 12.8m diameter EPBM will take about one year, six months for each tube. The completed project is due to open in 2014. Once opened the toll highway will be operated and maintained by MAT group partner Transfield Services.
The undersea port link highway is due to open in 2014

The undersea port link highway is due to open in 2014

The project is funded 50% by Florida's State Government and 50% by the local County and City Governments. MAT will combine partner equity with private bank and Government loans to fund construction. Government funding will be paid as milestone payments during the project's development. As part of the agreement the State Government will make annually operating and maintenance payments to MAT according to the availability of the infrastructure through the concession.
Boring beneath the Government Cut in Biscayne Bay is expected to begin in October 2011 after the assembly of the machine is completed inside a pit in the median of the MacArthur Causeway in front of Jungle Island. The work will begin there because that is where trucks will enter and exit the tunnel. Once assembled, the machine will weigh more than 2,500 tons.

References
Port of Miami Tunnel gets underway - TunnelTalk, July 2010

           

Add your comment

Thank you for taking the time to share your thoughts and comments. You share in the wider tunnelling community, so please keep your comments smart and civil. Don't attack other readers personally, and keep your language professional.
In case of an error submitting Feedback, copy and send the text to Feedback@TunnelTalk.com
Name :

Date :

Email :

Phone No :

   Security Image Refresh
Enter the security code :
No spaces, case-sensitive
 
 

TBM

Tunnel

Tunnelling

Boring

Conveyor

Cutterhead

Cut and cover

Tunnel Boring Machine

Double shield

Drill and blast

EPB

Earth Pressure Balance machine

reinforced fibre

Geotechnical engineering

EPBM

Headrace

Immersed tube

Jet-grouting

NATM

Over-excavation

One-pass lining

Pipe jacking

Road header

Rock bolt

Secondary lining

Underground

tunnel jobs

natm

tunnel excavations

tunnel boring

shaft sinking

tunnel mining

Diary Dates

Career Moves

Accolades

Procurement

Equipment Sales
Tunnel Directory
Tunnel Events
Tunnelling Events
TunnelCast
TunnelCast Videos
Tunnelling news
Tunnel Articles
World news
Used Tunnelling Equipments
TBM PLC
Tunnel News
Tunnel articles
Tunnelling articles
Tunnelling magazine
Tunnel Magazine