Question: How long is the railway on which Newby Bridge Halt is located?

full_context: Document 1: Rudyard Lake Steam Railway: The Rudyard Lake Steam Railway is a ridable miniature railway and the third railway of any gauge to run along the side of Rudyard Lake in Staffordshire. The railway runs for 1+1/2 mi on the track bed of an old standard gauge North Staffordshire Railway line. After the NSR line closed down, a small narrow gauge train ran on the site for two years before moving via Suffolk to Trago Mills in Devon. The current line started in 1985 and is gauge, and operates to a timetable. It was built by Peter Hanton of Congleton working on his own over a period of 10 years. He sold the railway to the Rudyard Lake Steam Railway Ltd in October 2000 who have developed it since that date.
Document 2: Kendal and Windermere Railway: The Kendal and Windermere Railway is a railway in Cumbria in north-west England. It was built as a railway from the Lancaster and Carlisle Railway at Oxenholme via Kendal to near Windermere, opening fully in April 1847. The engineer was Joseph Locke and the partnership of contractors consisted of Thomas Brassey, William Mackenzie, Robert Stephenson and George Heald. It remains open, albeit in much simplified form, as the Windermere Branch Line.
Document 3: Hest Bank North Junction: Hest Bank North Junction is a railway junction in Lancashire, England, where the Morecambe Branch Line joins the former London and North Western Railway (LNWR) line (now the West Coast Main Line (WCML)) in the down direction between Lancaster and Carnforth. It is also known as Morecambe North Junction. This line is currently being considered to become a community railway. Hest Bank railway station was situated here until its closure on 3 February 1969. Little trace of the old station remains, the platforms having been demolished prior to the electrification of the line in 1973. It is also the only location on the entire 401 mile (643 km) WCML where the coastline and Irish Sea is visible from the railway.
Document 4: Haughton Halt railway station: Haughton Halt was a minor station located north of Shrewsbury on the GWR’s Paddington to Birkenhead main line. It was opened in the nineteen thirties as part of the GWR's halt construction programme, aimed at combatting growing competition from bus services and would primarily have served the adjacent (and now disused) Haughton Airfield. Today the route is part of the Shrewsbury to Chester line. Nothing now remains on the site.
Document 5: Windermere: Windermere is the largest natural lake in England. It is a ribbon lake formed in a glacial trough after the retreat of ice at the start of the current interglacial period. It has been one of the country's most popular places for holidays and summer homes since the arrival of the Kendal and Windermere Railway's branch line in 1847. Historically forming part of the border between Lancashire and Westmorland, it is now within the county of Cumbria and the Lake District National Park.
Document 6: Cumbrian Coast line: The Cumbrian Coast line is a rail route in North West England, running from Carlisle to Barrow-in-Furness via Workington and Whitehaven. The line forms part of Network Rail route NW 4033, which continues (as the Furness line) via Ulverston and Grange-over-Sands to Carnforth, where it connects with the West Coast Main Line.
Document 7: Corkickle railway station: Corkickle railway station serves the Whitehaven suburb of Corkickle in Cumbria, England. The railway station is a request stop on the scenic Cumbrian Coast Line 68 km south west of Carlisle. The station opened in 1855 and is at the southern end of the 1219 m tunnel from Whitehaven railway station. At times it was known as 'Whitehaven Corkickle' station.
Document 8: Whitehaven railway station: Whitehaven railway station serves the town of Whitehaven in Cumbria, England. The railway station is a stop on the scenic Cumbrian Coast Line 63 km south west of Carlisle.
Document 9: Haverthwaite: Haverthwaite is a small village and civil parish in the Furness region of Cumbria. It is also within the boundaries of the Lake District National Park. It is located several miles east of Ulverston and is near the southern end of Windermere. The village gets part of its name from the Old Norse word "thwaite" which usually refers to a clearing or settlement in the forest.
Document 10: Oxenholme Lake District railway station: Oxenholme Lake District railway station (often shortened to Oxenholme) is a railway station in Oxenholme, near Kendal, in Cumbria, England. The station is situated on the West Coast Main Line and is also the start of the Windermere Branch Line to Windermere. All platforms are electrified, however platform 3 on the Windermere branch has limited capacity for longer trains. The station serves as a main line connection point for Kendal, and is managed by Virgin Trains.
Document 11: Lakeside and Haverthwaite Railway: The Lakeside and Haverthwaite Railway (L&HR) is a 3.2 mi heritage railway in Cumbria, England.
Document 12: Newby Bridge railway station: Newby Bridge Halt (also known, historically, as Newby Bridge Platform) is a railway station on the Lakeside and Haverthwaite heritage railway. It serves the village of Newby Bridge, Cumbria.
Document 13: Whalley railway station: Whalley railway station serves the village of Whalley in Lancashire, England. The station lies on the Ribble Valley Line 7+1/4 mi north of Blackburn. The station has two platforms, slightly offset from each other. It is unstaffed, with shelters on each platform. Immediately beyond its eastern end, the line crosses the River Calder on a 678 yd long, brick viaduct of 48 arches.
Document 14: Ravenglass (R&amp;ER) railway station: Ravenglass Heritage Railway Station is the Western terminus of the Ravenglass and Eskdale Railway. It is situated to the east of main line railway station, which is itself a station on the Cumbrian Coast Line. The facilities at the railway station include toilets, under-cover platforms, booking office and café. The railway station complex incorporates 2 locomotive sheds, a carriage shed, a signal box, managerial offices and 2 camping coaches; along with the railway station itself.
Document 15: Norton Lakeside Halt railway station: Norton Lakeside Halt railway station is a heritage railway station on the Chasewater Railway in Staffordshire. It is a simple halt, consisting of a single platform, with no station building and no loops or sidings. It is situated in Chasewater Country Park. To the west is Brownhills West railway station and to the east is Chasewater Heaths railway station.
ground_truth: 3.2 mi