Volume Ten - Pre-Victorian to the Present Day - Even more aspects - Investigation into the Condition of the Ely River Subway 1991 . . .

ESTIMATED COST OF REOPENING THE SUBWAY

In order to build up the total figure, the following assumptions have been made.

1. Water ingress will be small and only involve nominal pumping during construction.

2. Some repairs will be necessary to the flanges of the rings. An allowance has been made for fitting a steel channel section over 50% of the flanges.

3. Some bolts will need to be replaced. An allowance has been made to replace 50% of the bolts.

4. The southern Entrance Pavilion will be sited over the existing Subway at Ring 550. Access will be via a 11 metre diameter shaft with integral lift to the Pavilion.

5. The northern Entrance Pavilion will be sited at the position of the existing entrance and access will be gained from ground level.

6. In addition to grit blasting and painting, the existing Subway will receive a vitreous enamel lining for its full length.

7. A provisional sum of £20,000 has been allowed in the estimate for a ventilation system.

8. A provisional sum of £20,000 has been allowed in the estimate for internal lighting, CCTV and internal drainage and pumping requirements.