HomeMy WebLinkAboutMemo - Read Before Packet - 4/12/2016 - Updated Power Point Presentation For Agenda Item #1 - College & Prospect Proposed Intersection Improvements1
College and Prospect –
Proposed Intersection Improvements
4-12-16
Direction Sought
What feedback does Council have regarding the
Recommended Concept for the College and Prospect
intersection?
2
Project Context
3
Project Need & Goals
Existing:
• 70,000 vehicles/day
• High congestion
• Narrow sidewalks, sub-standard turn lanes
Goals:
• Reduce congestion
• Safety – pedestrians, bicycles, vehicles
• Landscaping/Urban Design/Gateway
• Minimize adjacent property impacts
4
Schedule
5
Design Alternatives Process
• Full range of alternatives and iterations considered
• Context Sensitive – Flexible standards without affecting safety
• Congestion Relief is key outcome
• Constrained corridor = compromise
• Design for all modes
• Incorporate feedback from property owners
6
Draft Recommended Concept
Key Design Elements:
• Add dual left turn lanes
and extend right turn lanes
• Upgrade substandard
infrastructure (utilities,
sidewalks, etc.)
• Improve bike/pedestrian
connections and crossings
• Requires rebuilding
wall/removing tree
7
Alternate Concept
Key Design Elements:
• Best addresses
property owner
concerns
• Cannot include 2nd
WB Left Turn
8
Residential Properties
9
Residential Properties
10
Public Outreach
Outreach:
• Staff has contacted all property owners
• Staff has held ~15-20 individual meetings with property owners
• Concept plan has been adjusted to balance project needs/property
impacts
• Outreach effort will continue through final design and construction
• Mitigation (landscaping, parking, wall details, new trees, etc.) is a
focus of the next several months
11
Neighborhood Traffic Mitigation
• Phasing and Detour Routes developed with final design
• Communication is an on-going focus
• Official Detours on appropriate streets
• Neighborhood cut-through discouraged with:
• Signing
• Enforcement (speeding)
• Additional measures if needed
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10
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10' DETACHED WALK
12' THRU STRIPE TO FL
11' THRU STRIPE TO FL
11' LEFT STRIPE TO FL
MATCH CSU 10' WALK
12' THRU STRIPE TO FL
11' THRU STRIPE TO FL
11' LEFT STRIPE TO FL
5' WALK
10' LEFT
10' THRU
10' THRU
12' RIGHT STRIPE TO FL
10' DETACHED WALK
10
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4
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EXISTING WALK
9' LEFT
10' THRU
10' THRU
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10' THRU STRIPE TO FL
EXISTING WALK
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MATCH CSU 10' WALK
12' THRU STRIPE TO FL
11' THRU STRIPE TO FL
11' LEFT STRIPE TO FL
11' LEFT
12' RIGHT STRIPE TO FL
11' THRU
11' THRU
11' LEFT
11' LEFT STRIPE TO FL
11' THRU STRIPE TO FL
12' THRU
10' DETACHED WALK
10' WALK
4
'
W
A
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K
EXISTING WALK
10' DETACHED WALK
11' THRU
11' THRU
12' RIGHT STRIPE TO FL
9' WALK
10
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A
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11' THRU STRIPE TO FL
10' THRU
9' LEFT
10' THRU
10' THRU STRIPE TO FL
0' 30' 60' 120'
COLLEGE
P
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PROSPECT
REMINGTON
BNSF RR
NORTHWEST QUADRANT DETAILS
SEE CSU DESIGN FOR
04/12/2016
SINGLE LEFT OPTION
COLLEGE AND PROSPECT
0' 30' 60' 120'
04/12/2016
DUAL LEFT OPTION
COLLEGE AND PROSPECT
COLLEGE
P
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SP
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PROSPECT
REMINGTON
BNSF RR
NORTHWEST QUADRANT DETAILS
SEE CSU DESIGN FOR
MAINTAIN EXISTING DRIVEWAY
MAINTAIN EXISTING DRIVEWAY
ACCOMODATE NB TO EB WB-67 TURNING
RECONFIGURED SE CORNER TO
ACCOMODATE NB TO EB WB-67 TURNING
RECONFIGURED NE CORNER TO
TREES
EXISTING
TREES
EXISTING
DRIVEWAY
EXISTING
MAINTAIN
DRIVEWAYS
EXISTING
MAINTAIN
MAINTAIN EXISTING DRIVEWAY DRIVEWAY
EXISTING
MAINTAIN
MAINTAIN EXISTING DRIVEWAY
MAINTAIN EXISTING DRIVEWAY
ACCOMODATE NB TO EB WB-67 TURNING
RECONFIGURED SE CORNER TO
ACCOMODATE NB TO EB WB-67 TURNING
RECONFIGURED NE CORNER TO
TREES
EXISTING
TREES
EXISTING
DRIVEWAY
EXISTING
MAINTAIN
DRIVEWAYS
EXISTING
MAINTAIN
MAINTAIN EXISTING DRIVEWAY DRIVEWAY
EXISTING
MAINTAIN
MAINTAIN EXISTING DRIVEWAY
MAINTAIN EXISTING DRIVEWAY