Complex sentence: NY 414 then forms a concurrency with the two routes west through the village and into the town of Waterloo, where it splits from the concurrency and heads north toward the New York State Thruway.
Split into simpler sentences: NY 414 then forms an overlap with the two routes west through the village and into the surrounding town. It splits from the concurrency midway between the villages of Seneca Falls and Waterloo and heads north toward the New York State Thruway.