DfT – Solent Dual Carriageway Tunnels – Isle of Wight - Project Profile
"DfT – Solent Dual Carriageway Tunnels – Isle of Wight - Project Profile" contains information on the scope of the project including project overview and location. The profile also details project ownership and funding, gives a full project description, as well as information on contracts, tendering and key project contacts.
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The Department for Transport (DfT), UK is planning to construct a twin bored, dual carriageway tunnel, between Whippingham on the Isle of Wight and Gosport, in Hants (or Hampshire), the UK.
The project involves the construction of a 6.4km dual carriageway tunnel. It includes the construction of a drainage line, shafts and related facilities, and the installation of security systems, water sprinkling systems, air quality monitoring systems and firefighting systems.
In March 2015, Pro-Link Campaign Association, a not-for-profit organization, was formed by local people for promoting the need for a fixed link to connect the mainland to the Isle of Wight.
In April 2015, Pro-Link arranged a two-day visit by Tunnel Engineering Consultants (TEC), a joint venture between Witteveen&Bos and Royal HaskoningDHV, to examine the possibility of a fixed link to the mainland. The delegation confirmed that an 8km tunnel is technically feasible and also opined that a bridge would not be practical due to the underlying geology and the height required of the span. They confirmed that the engineering and design study will take two to three years and the construction will take five to seven years.
The delegation also presented two options for consideration which are twin bored or immersed tube tunnels. They assessed that the immersed tube tunnel option would boost the socio-economic on the Island and 90% of the labor could be locally sourced. However, environmental issues need to be looked into thoroughly while choosing the construction method which would actually be decided during the design and engineering phase of the project.
In September 2016, Pro-Link Campaign Association has unveiled a new plan to a dual-carriageway tunnel. The plan has been scaled back from the original, which was designed to spark debate and included a rail and road tunnel from Arreton to the mainland and a monorail around the Island.
The new proposal includes a pedestrian subway under the Medina from East to West Cowes, where the floating bridge currently operates, and a vehicle bridge over the Medina nearer Newport to ease traffic issues created by a fixed link.
Planning activities are underway.
Planning Authority: Isle of Wight Council
The project involves the construction of 6.4km two dual-carriageway tunnels between Whippingham on the Isle of Wight and Gosport, in Hants (or Hampshire), the UK.
The US$1,560 million project includes the following:
1. Construction of a pedestrian subway
2. Construction of a drainage line
3. Construction of shafts and related facilities
4. Installation of water sprinkling system
5. Installation of security systems
6. Installation of air quality monitoring systems
7. Installation of fire fighting systems
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