Thats because there is a large circle of goon tube knobs passing locations about quicker than u can blink.
If one finds it they all go.
If you can put link to the vids someone may know it,
The New Civil Engineer website has this about the Queensbury Tunnel near Bradford:
"National Highways' long-running battle with disgruntled campaigners in West Yorkshire has boiled over, with the police called in to investigate an alleged case of trespass.
England's major roads operator filed the complaint after unsolicited photos emerged from inside the abandoned Queensbury Tunnel near Bradford. The report has been filed with West Yorkshire Police and
NCE understands that it specifically relates to trespass.
The photographs were taken late last year by three "urban explorers" and have been released by campaigners who are frustrated that the work to the Victorian structure was carried out in the first place. A West Yorkshire Police spokesperson has confirmed that its Bradford South Neighbourhood Policing Team is looking into the complaint. Inspector Andrew Thornton added: 'National Highways have been in contact regarding the Queensbury Tunnel and we are working with them to establish the full facts of what has happened and what solutions can be worked on to prevent further incidents. 'Anyone who enters the site without permission not only puts their own safety at risk but also expose themselves to either civil action or criminal prosecution.'
The photographs show the tunnel blocked in two places. One photo shows work carried out in October 2019, when National Highways contractors tipped hundreds of tonnes of stone down one of the tunnel’s shafts, close to the southern portal. A second photo, taken around 300m further north, shows grout-filled steel baskets that have been assembled to support a separate shaft which previous inspection reports recorded as being in 'Fair condition”' The work took place last summer when floodwater in the tunnel was at its lowest point, but the materials still had to be installed by divers and the grout pumped 500m from the water’s edge.
Elsewhere, photos show steel mesh panels and sprayed concrete have been used to strengthen sections of the tunnel’s lining and colliery arches erected to provide access beneath areas where brickwork collapses have occurred."
National Highways has an ongoing campaign to fill in the cuttings below countless historic bridges on former railway lines, and to block umpteen unused tunnels - all in the name of "safety". And one company has the nationwide contract to do the job. No doubt 'jobsworth' NH is upset at the adverse publicity provided by the urban explorers who took the photos.
Another quote from the NCE article:
"Queensbury Tunnel Society leader Norah McWilliam said that the photos 'capture a missed opportunity'. The group have long questioned the need for such drastic repairs and have repeatedly called for the tunnel to be converted into a walking and cycling route. The final cost of the project to repair the 2.25km tunnel – which connects Halifax and Bradford – came in at £7.3M, more than 13 times the original estimated cost.
The programme was originally costed at £545,000, but this figure rose significantly after National Highways (formerly Highways England) failed to pay the £50 annual rent on a pumping station at the Halifax end of the tunnel, resulting in the need for a temporary dewatering operation which cost around £1.2M.
Information obtained by the Queensbury Tunnel Society also reveals that National Highways was paying AMCO-Giffen more than £3,000 a day to provide “round-the clock security” at the site over Christmas in 2020. However campaigners have questioned the need for repairs and have labelled it a 'monumental waste of time'.
McWilliam added: 'Spent appropriately, £7.3M could have been used to repair much of the tunnel and bring closer its rehabilitation for public benefit. Instead that money has largely been wasted on works that would not have been necessary if National Highways had paid the rent on the pumping station.'
In response, National Highways head of Historical Railways Estate programme Hélène Rossiter said that the tunnel could yet be restored as a walking and cycling route."