Complex sentence: An unconstructed 11.2-mile (18.0 km) western extension of State Route 37 runs from US 101 near Novato to SR 1 near Nicasio.A locally maintained traversable route is Point Reyes-Petaluma Road and Novato Boulevard, but Caltrans has no plans to take it over.
Split into simpler sentences: An unconstructed 11.2-mile (18.0 km) western extension of State Route 37 runs from US 101 near Novato to SR 1 near Nicasio. A transversable routing is Point Reyes-Petaluma Road and Novato Boulevard, but Caltrans has no plans to take it over.