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{"slug": "southwest-210-street", "name": "Southwest 210 Street", "states": ["FL"], "length_km": 0.42, "surface": "unknown", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "southwest-23rd-terrace-trail", "name": "Southwest 23rd Terrace Trail", "states": ["FL"], "length_km": 2.3, "surface": "paved", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "southwest-293rd-avenue", "name": "Southwest 293rd Avenue", "states": ["FL"], "length_km": 2.8, "surface": "unknown", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "southwest-355-avenue", "name": "Southwest 355 Avenue", "states": ["FL"], "length_km": 2.77, "surface": "unknown", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "southwest-440-avenue", "name": "Southwest 440 Avenue", "states": ["FL"], "length_km": 2.93, "surface": "unknown", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "southwest-475th-avenue", "name": "Southwest 475th 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{"slug": "spring-run-trail", "name": "Spring Run Trail", "states": ["NY"], "length_km": 1.38, "surface": "paved", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "springs-preserve-connector-trail", "name": "Springs Preserve Connector Trail", "states": ["NV"], "length_km": 2.23, "surface": "paved", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "spring-to-spring-trail", "name": "Spring-to-Spring Trail", "states": ["FL"], "length_km": 24.77, "surface": "paved", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "spring-trail", "name": "Spring Trail", "states": ["CA"], "length_km": 0.03, "surface": "dirt", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "spring-valley-branch-utah", "name": "Spring Valley Branch (UTAH)", "states": ["UT"], "length_km": 2.9, "surface": "unknown", "status": "unknown", "kind": "rail", "last_verified": null}, {"slug": "springwater-trail", "name": "Springwater Trail", "states": 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