Route 112 is a union of two functionally-named roads in Salisbury:
- Interlaken Road, between Wononskopomuc Lake and Wononpakook Lake
- Lime Rock Road, site of the Lime Rock Park race track
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Route 112 is a union of two functionally-named roads in Salisbury:
In the 1920s, State Highway 112 followed today's Route 77, and part of Route 17, from Guilford through Durham to Middletown.
The modern Route 112, commissioned in 1932, has not changed much since then. Its official length has decreased 0.07 mile since then, which could be a smoother curve or two, or simply a corrected measurement. It follows a route over which iron ore was once transported in saddle-bags from the numerous Salisbury workings to Lime Rock forges.