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New Alignment Concepts
New Routes for Urban Mobility
Concept and Options: Mountain View Drive to D Street
New Alignment | New Routes for Urban Mobility
Level One Screening Result: All Options Eliminated due to significant right of way impacts, including a cemetery
Key Components
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Westbound SH-8 traffic to route north on Mountain View Drive and west on D Street
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Eastbound SH-8 would update
to one-way between US-95 and
Mountain View Drive
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North-south connections would be considered at various streets.
Options include:
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Jackson Street
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Baker Street
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Farm Road
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Warbonnet Drive
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Potential connection in Washington
Click map to view enlarged PDF in a new window
Linework is intended to show movements and is not representative of lane widths or footprint.
Concept and Options: Mountain View Drive to 6th Street
New Alignment | New Routes for Urban Mobility
Level One Screening Results: Eliminated due to significant right of way impacts, including a cemetery
Click map to view enlarged PDF in a new window
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Key Components
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Westbound SH-8 traffic to route north on Mountain View Drive and west on 6th Street
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Eastbound SH-8 could accommodate lane reallocation, including an additional eastbound lane
Linework is intended to show movements and is not representative of lane widths or footprint.
Concept: Styner Avenue
New Alignment | New Routes for Urban Mobility
Level One Screening Results: Carried Forward as an Element
Click map to view enlarged PDF in a new window
Key Components
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Westbound SH-8 would use Styner Avenue to turn south on US-95
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Currently, there are two westbound left-turn lanes from SH-8 to US-95. With at least one left-turn lane removed, an extra eastbound lane may be possible through the SH-8 intersection with Washington Street.
Linework is intended to show movements and is not representative of lane widths or footprint. Certain concepts may require additional right of way.
Concept: Palouse River Drive
New Alignment | New Routes for Urban Mobility
Level One Results: Carried Forward
Click map to view enlarged PDF in a new window
Key Components
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Westbound SH-8 would use Mountain View Drive south and Palouse River Drive west to connect with US-95
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Upcoming and current city and county studies are evaluating improvements and freight route alternatives along Sand Road in Idaho and Washington
Linework is intended to show movements and is not representative of lane widths or footprint. Certain concepts may require additional right of way.
New Corridor Concepts
Level One Concept Development Overview
When considering potential areas for new corridors, the study team used conceptual engineering and public input to determine reasonable paths.
From there, 17 key intersections were identified as helpful starting points for studying potential new corridors.
To organize data, concepts are presented based on the intersections leaving and joining with US-95 from south to north. Thus, concepts will note starting at Intersection 1 or 2 for the Moscow area and Intersection 14 for the Potlatch area.
Graphic Examples of New Alignment Elements
Because we build new roads to the latest design standards, many roadway elements would be determined by engineering best practices and technical data at the time of final design and construction. Specific roadway elements for a new alignment will be refined as we progress through the PEL Process.
Four-Lane Highway with Center Turn Lane
Four-Lane Divided Highway
Click map to view enlarged PDF in a new window
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Click map to view enlarged PDF in a new window
Routes are preliminary in Level One and meant to be illustrative of potential paths between Intersections.
As an example, the Concept: Private Road (Intersection 2) to Viola (Intersection 10) illustrates three different north-south routes: one over Moscow Mountain, one up the state line, and one around Moscow Mountain.
As we study additional data for each proposed route in Level Two, one route may prove to be more Feasible or have other advantages. If that is true, then that specific route may be “Carried Forward as an Element” that could apply across the entire concept.
Through these early corridor concept illustrations, we would like to gather feedback from agencies, the public, and invested and interested parties on:
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East vs. west alignments
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Intersection points
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Preliminary routes
New Corridor Concepts and Options
New Alignments
Level One Results for All Options:
Carried Forward
The study teams carried forward all 17 intersection options through the Level One Screening. As the study progresses, there may be full or partial combinations of routes between the intersections that vary from east to west and north to south (full circle, three-quarter circles, half circles, quarter circle, etc.).
Map linework is intentionally oversized and drawn at 1,000-feet wide for potential new corridors in rural areas. This allows our team to consider new alignments within a general area while we collect specific traffic, environmental, refined geometrics, safety and operational analyses, as well as public and stakeholder input.
Click map to view enlarged PDF in a new window
Click map to view enlarged PDF in a new window
Concept and Options: A Street
New Alignment | New Routes for Urban Mobility
Level One Screening Results: Carried Forward as an Element
Click map to view enlarged PDF in a new window
Key Components
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Westbound SH-8 traffic would route north on the current highway alignment and west on A Street
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Eastbound SH-8 would update to one-way between Line Street and US-95
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North-south connections would be considered at various streets
Options include:
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Lieuallen Street
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Line Street
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Peterson Drive
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Baker Street
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Farm Road
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Warbonnet Drive
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Potential connection in Washington
Linework is intended to show movements and is not representative of lane widths or footprint. Certain concepts may require additional right of way.
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