State Route 198 Interchange at Road 148

 

Alternatives

Existing Condition

 

Proposed Alternative 1A: Roundabout

• Roundabouts to connect between ramps and frontage roads
• Class IV Bike Path on Overcrossing Bridge
• Class 1 Shared Bike Path connecting to existing trail

 

Proposed Alternative 1B: Type L-2

• Direct on and off ramps from and to SR 198
• Class 1 Shared Bike Path
• Class IV Bike Path on local roads

 

Proposed Alternative 1C: Type L-7

• 2 Direct off-ramps from SR 198
• 2 Loop on-ramps to SR 198
• Class 1 Shared Bike Path on the overcrossing
• Class IV Bike Path on local roads

 

Proposed Alternative 1D: Type L-9

• 2 Direct on-ramps to SR 198
• 2 Direct off-ramps from SR 198
• 2 Loop on-ramps to SR 198
• Left-turn movements from the crossroads are eliminated
• Class 1 Shared Bike Path on the overcrossing

 

Proposed Alternative 1E: Diverging Diamond Interchange (DDI)

• 2 Direct off-ramps from SR 198
• 2 Direct on-ramps to SR 198
• Free flow when entering and exiting the freeway and Class 1 Shared Bike Path