Complex sentence: For much of the ranch's history the only access to the lodge and cabins from the road was across a footbridge, but camelback truss bridge was relocated to the site in 1969 to provide vehicular access.
Split into simpler sentences: For much of the ranch's history the only access to the lodge and cabins from the road was across a footbridge. A camelback truss bridge was relocated to the site in 1969 to provide vehicular access.