Bulgaria planned and proposed narrow gauge lines. Future heritage, regional and industrial narrow gauge railway projects.
Bulgaria narrow gauge lines formally proposed or in planning stages: heritage railway extensions to new termini, new tourist or mountain railways and occasional industrial or regional narrow gauge proposals. Data sourced from OpenStreetMap contributors tagging proposed alignments based on published plans from heritage railway organisations and local authorities.
Bulgaria has 106 proposed railway segments including 69 railway, 29 tram and 8 metro.
Last update: 2026-07-24