West Waukesha Bypass Study
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Transcript of West Waukesha Bypass Study
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TBG052510032618MKE
West Waukesha Bypass Study
Community Sensitive Solutions Advisory GroupMeeting No. 5January 31, 2011
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Meeting Purpose Update advisory group on the current status of the project Review the alternatives under consideration and their impacts Obtain your input on the alternatives Discuss upcoming activities
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Initial Alternatives
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CSS Advisory Group RatingsNorthern Alternatives
SS1 SS2 SS3 SS4 TT1 TT2 TT3 T1
80 72 71 69 105 135 138 30
Southern Alternatives
Far West
Long D-X Short D-X
Golf Course West
Golf Course East
Pebble Creek
T1
47 35 34 50 49 58 45
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Remaining Alternatives
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Remaining Alternatives
-- North Section
--No-Build Alternative --4-Lane Alternative
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Remaining Alternatives
-- Central Section
-- No-Build Alternative--Three 2-Lane Alternatives-- One 4-Lane Alternative
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2-Lane and 4-Lane Alternatives South of Summit Avenue the study team is evaluating 2-lane and 4-
lane options; all would include an off-road bike path Three different two-lane alternatives under consideration
Incremental improvements (reconstruct the roadway, addressing existing problems except intersections; will incur right-of-way and relocation impacts)
Full reconstruction, on existing County TT alignment (completely reconstruct existing roadway including intersections; will incur right-of-way and relocation impacts)
Full reconstruction, off of existing County TT (follow mapped bypass route, reduces driveways that connect to County TT, reduces impacts to some residences; existing County TT would remain as a frontage road in spots)
The key issue is whether an improved 2-lane roadway can adequately handle anticipated future traffic volumes (year 2035)
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Remaining Alternatives
-- South Section
--No-Build Alternative-- Three 2-Lane Alternatives-- One 4-Lane Alternative
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Features of Alternatives South of Sunset Drive
Merrill Hills Road (Golf Course East Alternative) Includes improvements to Hwy 59 between Merrill Hills Road and County X Avoids environmental impacts in Pebble Creek corridor Avoids Sunset /County X intersection; more direct route to Hwy 59 than
Sunset-to-County X alternative 10-11 residential relocations; dramatic increase in traffic adjacent to
remaining 15 +/- residences Hills near Sunset Drive require large “cut” and bridge over Sunset Drive Higher cost than Pebble Creek corridor alternative
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Features of Alternatives South of Sunset Drive (cont.’d)
Pebble Creek Corridor This is the alignment included in city, county and regional plans since the
1970’s Most direct route to Hwy 59 No crossing of Pebble Creek is required Lower cost than Golf Course East, about the same as Sunset-to-X Highest impact to primary environmental corridor 0 to 2 residential impacts Close to some residences on Hawthorne Hollow Drive Potential impacts to state threatened and endangered species (Butler’s garter
snake, Blandings turtle, long-eared sunfish) Wetland impacts vary from 3 to 15 acres of wetland
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Features of Alternatives South of Sunset Drive (cont.’d)
Sunset-to-County X Alternative Follows existing county trunk highways Takes advantage of recent widening of County X Indirect connection to Hwy 59 5-8 residential relocations on Sunset Drive Adds more traffic to Sunset Drive/County X intersection About the same cost as Pebble Creek corridor alternative; lower cost than
Golf Course East Wetland impact 7 acres, and two bridges over Pebble Creek Possible state threatened or endangered species impacts (Butler’s garter
snake, Blandings turtle, long-eared sunfish)
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Traffic Impacts New traffic info from SEWRPC
Study team asked SEWRPC to project future traffic volumes if 4 lanes from I-94 to Summit Ave and 2 lanes from Summit to Hwy 59
Key finding is that 14,000 to 19,000 vehicles per day would use County TT south of Summit Avenue in year 2035; County and WisDOT use 15-17,000 vehicles per day as threshold for considering four lanes
Using SEWRPC projections, study team assessed how traffic would operate during peak hours on a two-lane roadway and a four-lane roadway
• Two-lane level of service “D” or “E”; four-lane level of service “B” and “C” • At intersections:
– signalized intersections at Madison and Sunset would operate OK with a 2-lane or 4-lane alternative
– unsignalized intersections would “fail” on a 2-lane undivided alternative (unless a median is added at unsignalized intersection like Kame Terrace, MacArthur)
– unsignalized intersections would operate better on a 4-lane alternative
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Traffic Impacts
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Traffic Impacts
14,000
15,000Golf Course East
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Traffic Impacts
14,000
15,000Golf Course East
14,000
16,000
PebbleCreek
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Traffic Impacts
14,000
15,000Golf Course East
14,000
19,000
Sunset-to-X
14,000
16,000
PebbleCreek
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Intersection Level of Service Definition
LOS A is the highest level of service that can be achieved. Intersection approaches are open, turns are easily made, and nearly all drivers find freedom of operation. Average delays are less than 10 seconds.
LOS B represents stable operation. At signalized intersections average delays are 10 to 20 seconds. At unsignalized (stop signs) intersections, average delays are 10 to 15 seconds.
LOS C still represents stable operation, but periodic backups of a few vehicles may develop. Most drivers begin to feel restricted. At signalized intersections, average delays are 20 to 35 seconds. At unsignalized intersections, average delays are 15 to 25 seconds.
LOS D represents increasing traffic restrictions. Delays may be substantial during short peaks but no excessive backups. At signalized intersections, average delays are 35 to 55 seconds. At unsignalized intersections, average delays are 25 to 35 seconds.
LOS E represents the highest operating capacity of the intersection. At signalized intersections, average delays are 55 to 80 seconds. At unsignalized intersections, average delays are 35 to 50 seconds.
LOS F represents jammed conditions, the intersection is over capacity and safe gaps in the traffic flow are minimal. At signalized intersections, average delays exceed 80 seconds. At unsignalized intersections, average delays exceed 50 seconds.
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Madison St. iscurrentlyunsignalized
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Residential Relocations North of Summit Avenue: no relocations and minimal right-of-way acquisition Summit Avenue to Sunset Drive:
Off-alignment• 2-lane/4-lane: 2 relocations
On-alignment• 2-lane: 6-8 relocations• no 4-lane on-alignment option
South of Sunset Drive Golf Course East
• 2-lane: 9 relocations• 4-lane: 11-12 relocations
Pebble Creek: 0-2 relocations; no difference between 2- and 4-lane Sunset Drive
• 2-lane: 1-3 relocation• 4-lane : 6-8 relocations
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Cost Estimate 4-Lane on mapped bypass route
Golf Course East: $56 million Pebble Creek: $48 million (pending soil borings) Sunset-to-X: $46 million
2-Lane on mapped bypass route (4 lanes north of Summit Ave) Golf Course East: $36 million Pebble Creek: $32 million Sunset-to-X: $29 million
Improved 2-Lane on existing County TT (4 lanes north of Summit Ave) $33-34 million
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Environmental Impacts4-Lane on Bypass Route
(acres)North of Railroad Tracks
Golf Course
East
Pebble Creek
(mapped route)
Pebble Creek (west)
Pebble Creek
(far west)
Sunset-to-X
Wetland 4 <1 15 4 3 6
Primary Env. Corridor
11 3 21 8 13 10
Floodplain 5 0 12 0 0 9
Right-of-Way
25 30 30 37 37 24
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Environmental Impacts2-Lane on Bypass Route
(acres)North of Railroad Tracks
Golf Course
East
Pebble Creek
(mapped route)
Pebble Creek (west)
Pebble Creek
(far west)
Sunset-to-X
Wetland 3 <1 11 3 2 4
Primary Env. Corridor
8 3 16 6 10 7
Floodplain 4 0 9 0 0 6
Right-of-Way
20 23 23 28 28 18
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Environmental ImpactsImproved 2-Lane on Existing TT
(acres)Sunset-to-X
Wetland 5 (1+4)
Primary Env. Corridor
11 (3+8)
Floodplain 6 (0+6)
Right-of-Way
36 to 37
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What’s Next Prepare draft Alternatives Section for public and government
agency review (DNR, EPA, etc.) Begin preparing other sections of the Draft Environmental Impact
Statement (EIS) Hold Public Informational Meeting #3 on February 10th (Waukesha
West cafeteria), 4-8pm Context Sensitive Solutions advisory group meeting #6 in spring Draft EIS approved in Spring or Summer 2011 Public Hearing shortly after Draft EIS approved Final EIS in Fall 2011 Complete study at end of 2011
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TBG052510032618MKE
Q&A