Preliminary Alternatives Eliminated from Further Study
Choose an alternative below:
- B1
- B2
- D3
- D4
- D5
- E3
- E4
- E5
B1
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
B2
Wilson Creek Bridge to Damnation Trailhead
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.
Travel Time
(Wilson Creek Rd. to Hamilton Rd.)
Added Time: 0.2 min
New Construction
Length: 3.7 mi
Footprint: 92 acres
Schedule: 2 years
Cost (in Millions)
Minimum: $340M
Maximum: $400M
Existing Habitat Type
Coastal scrub/grassland /spruce: 12 acres
Riparian: 1 acre
Clear cut: 10 acres
Young Redwood Forest: 67 acres
Mature Redwood Forest: 0 acres
Old Growth Redwood Forest: 3 acres
D3
Wilson Creek Bridge to South of Mill Creek Access
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.
Travel Time
(Wilson Creek Rd. to Hamilton Rd.)
Added Time: 1.2 min
New Construction
Length: 8.4 mi
Footprint: 262 acres
Schedule: 3 years
Cost (in Millions)
Minimum: $770M
Maximum: $900M
Existing Habitat Type
Coastal scrub/grassland /spruce: 12 acres
Riparian: 1 acre
Clear cut: 10 acres
Young Redwood Forest: 216 acres
Mature Redwood Forest: 23 acres
Old Growth Redwood Forest: 0 acres
D4
Wilson Creek Bridge to North of Mill Creek Access
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.
Travel Time
(Wilson Creek Rd. to Hamilton Rd.)
Added Time: 1.0 min
New Construction
Length: 9.3 mi
Footprint: 282 acres
Schedule: 4 years
Cost (in Millions)
Minimum: $840M
Maximum: $980M
Existing Habitat Type
Coastal scrub/grassland /spruce: 12 acres
Riparian: 1 acre
Clear cut: 10 acres
Young Redwood Forest: 216 acres
Mature Redwood Forest: 43 acres
Old Growth Redwood Forest: 0 acres
D5
Wilson Creek Bridge to Hamilton Road
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.
Travel Time
(Wilson Creek Rd. to Hamilton Rd.)
Added Time: 2.0 min
New Construction
Length: 12.5 mi
Footprint: 344 acres
Schedule: 4 years
Cost (in Millions)
Minimum: $1,130M
Maximum: $1,320M
Existing Habitat Type
Coastal scrub/grassland /spruce: 12 acres
Riparian: 1 acre
Clear cut: 10 acres
Young Redwood Forest: 228 acres
Mature Redwood Forest: 93 acres
Old Growth Redwood Forest: 0 acres
E3
Wilson Creek Road to South of Mill Creek Access
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.
Travel Time
(Wilson Creek Rd. to Hamilton Rd.)
Added Time: 4.1 min
New Construction
Length: 11.4 mi
Footprint: 299 acres
Schedule: 4 years
Cost (in Millions)
Minimum: $1,020M
Maximum: $1,200M
Existing Habitat Type
Coastal scrub/grassland /spruce: 0 acres
Riparian: 22 acres
Clear cut: 0 acres
Young Redwood Forest: 254 acres
Mature Redwood Forest: 23 acres
Old Growth Redwood Forest: 0 acres
E4
Wilson Creek Road to North of Mill Creek Access
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.
Travel Time
(Wilson Creek Rd. to Hamilton Rd.)
Added Time: 3.9 min
New Construction
Length: 12.2 mi
Footprint: 319 acres
Schedule: 4 years
Cost (in Millions)
Minimum: $1,100M
Maximum: $1,280M
Existing Habitat Type
Coastal scrub/grassland /spruce: 0 acres
Riparian: 22 acres
Clear cut: 0 acres
Young Redwood Forest: 254 acres
Mature Redwood Forest: 43 acres
Old Growth Redwood Forest: 0 acres
E5
Wilson Creek Road to Hamilton Road
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.
Travel Time
(Wilson Creek Rd. to Hamilton Rd.)
Added Time: 5.0 min
New Construction
Length: 15.5 mi
Footprint: 381 acres
Schedule: 4 years
Cost (in Millions)
Minimum: $1,390M
Maximum: $1,620M
Existing Habitat Type
Coastal scrub/grassland /spruce: 0 acres
Riparian: 22 acres
Clear cut: 2 acres
Young Redwood Forest: 264 acres
Mature Redwood Forest: 93 acres
Old Growth Redwood Forest: 0 acres
