When Frizinghall works could not cope with the waste the Esholt estate was acquired for more than £239,000 as the site for a new sewage works. A three-mile long tunnel between Frizinghall and Esholt to connect the sites was completed in the 1920s. Frizinghall works closed in 1926. The tunnel has ventilation shafts in Frizinghall, Wrose and Idle.
When Frizinghall works could not cope with ,the waste the Esholt estate was acquired for more than £239000 as the site for a new sewage works. A three-mile long tunnel between Frizingh.all and Esholt to connect the sites was completed in the 1920s Frizinghall works closed in 1926. The tunnel has ventilation shafts in Frizinghall, Wrose and Idle.