Wilson Creek Bridge to LCG Hill Tunnel
BASIS FOR ALTERNATIVE EXCLUSION
The criteria used for alternative exclusion included geotechnical, environmental, engineering, and planning as a baseline used to evaluate alternatives. For the Feasibility Study, the primary impacts to avoid were natural resources and cultural landscape. An essential question answered in this process was whether an alternative provided a unique advantage over other alternatives being proposed. For a more detailed explanation, please refer to page 28 of the Engineered Feasibility Study, available in the Document Library.
(Includes 2,000 foot tunnel)
Travel Time
(Wilson Creek Rd. to Hamilton Rd.)
Added Time: 0.4 min
New Construction
Length: 3.7 mi
Footprint: 89 acres
Schedule: 3 years
Cost (in Millions)
Minimum: $550M
Maximum: $730M
Existing Habitat Type
Coastal scrub/grassland /spruce: 12 acres
Riparian: 1 acre
Clear cut: 10 acres
Young Redwood Forest: 65 acres
Mature Redwood Forest: 0 acres
Old Growth Redwood Forest: 1 acre