the development was paused while a North West Planning Study was conducted; a forecast cost increase to $40 million was cited. On-ground preparatory work was reversed in January 2020. Collection The museum houses its large static collection in two pavilions and the historic Port Dock railway station goods shed. On the site, all three mainline gauges of Australia are represented: narrow, ; standard, ; and broad . The collection comprises more than 100 major exhibits, mainly from the Commonwealth Railways and South Australian Railways. It also holds rolling stock from the Silverton Tramway and Victorian Railways. Operational locomotives and railcars on these gauges are: narrow gauge: former Broken Hill Associated Smelters steam locomotive Peronne (1918 Andrew Barclay 0-6-0T tank locomotive) broad gauge: former SAR diesel-electric locomotives 515 and 801, "Red Hen" railcars 321 and 400, and "Bluebird" railcar 257. The museum also operates locomotives, including steam locomotives Bill (with a 2-4-0 wheel arrangement) and Bub (0-4-2T), for visitor rides on its track around the site. Locomotive and railcar exhibits Steam locomotives SAR Rx 93 SAR Y 97 SAR P 117 SAR T 253 SAR F 255 SAR 409 SAR 504 Tom Barr Smith SAR 523 Essington Lewis SAR 624 SAR 702 SAR (ex VR) 752 CR G 1 CR NM 34 Silverton Tramway Y 12 Silverton Tramway A 21 Silverton Tramway W 25 Broken Hill Associated Smelters Peronne ←(operational) BHP Whyalla no. 4 Diesel locomotives SAR diesel shunter 515 & 517 ←(no. 515 is operational) SAR mainline diesel 703 ←(static, to be operational) SAR diesel shunter 801 ←(operational) SAR mainline diesel 900 SAR mainline diesel 930 CR GM class GM 2 CR mainline diesel NSU 61 CR diesel shunter DE 91 Railcars SAR Model 55 Brill railcar 8 SAR Model 75 Brill railcar 41 SAR Bluebird railcar 257 Kestrel ←(operational) SAR Redhen railcars 321 and 400 ←(operational) STA 2000 class railcars 2006 and 2112 CR Budd Railcar CB 1 Operations The museum operates a number of historic locomotives for shunting of rolling stock and during special events. Within the museum grounds, -gauge steam and diesel locomotives provide rides on a track long. In 1992, the museum, in cooperation with the local council, built a line along the beach from Semaphore to Fort Glanville. From October to April, trains operate – subject to temperatures being less than – on weekends, public holidays and school holidays. The line travels along the coastline,