public meeting u.s. hwy 65 in mason city sixth street north to 18th street … · 2017-08-11 ·...
TRANSCRIPT
PUBLIC MEETING
U.S. Hwy 65 in Mason City
Sixth Street North to 18th Street NorthHMA Resurfacing with Milling
Cerro Gordo County, IowaNHSN-065-8(61)--2R-17
BEGIN PROJECT
END PROJECT
Presentation Overview
• Project Location
• Improvements• Resurfacing
• ADA Curb Ramps
• Right-Of-Way
• Traffic Study• Traffic Volumes
• Crash History
• 4-Lane and 3-Lane
Alternatives
Project Location
U.S. Hwy 65
(N. Federal Avenue)
6th Street N. to 18th Street N.
BEGIN PROJECT
END PROJECT
Project Location
6th 9th 12th
18th15th
NORTH
Improvements - Resurfacing
• Patch Areas
• Then Resurface the Street
• Mill 1-inch of the existing surface
• Overlay with a total of 4-inches of new Hot Mix
Asphalt Pavement
Improvements – ADA Curb Ramps
Existing Curb Ramps Will Be
Reconstructed• Reconstructed sidewalks will be 5’ wide.
• Will raise the ramp to match top of new
pavement.
• When feasible, will meet ADA
requirements.
• Even if restrictions make full compliance
infeasible, the ramp will still be
reconstructed.
• This work will require Temporary
Easements from property owners.
Improvements – Temporary Easements
• Temporary Easements are
anticipated.
• Permanent Easements or Title
Acquisitions are not
anticipated.
• Generally will extend 5’ wider
and 10’ longer than the limit of
construction.
• Each location is unique and will
have its own design. Review
the exhibit to view the
preliminary design for your
area and the tentative
easement needed.
Traffic Study
Existing Corridor
• 4-Lane Undivided Roadway
• 2 Signalized Intersections
• 9th Street N
• 12th Street N
Existing Traffic Volumes
• 2013 Average Annual Daily Traffic (AADT)
• 6,400 to 7,500 Vehicles per Day
Traffic Study
Crash History
• Jan. 1, 2011 – Dec. 31, 2015 (5 years)
• 83 Total Crashes
• 41% Rear-End
• 20% Broadside
• 10% Angle, Oncoming Left Turn
• 2% Head-On
Traffic Study
Crash History – Impact on the Community
• 83 Total Crashes
• 22 (27%) Injury Crashes
• Estimated Economic Loss = $1,240,000
• 61 (73%) Property Damage Only
• Estimated Economic Loss = $333,000
• Total Estimated Economic Loss = $1,573,000
• Approximately $315,000 per year
Traffic Study
Crash History
• Crash Rate = 736.5 / Hundred Million Vehicle
Miles (HMVM)
• Nearly 3x Statewide Average Rate for similar
facilities
Alternatives Evaluated
Maintain Existing 4-Lane
Alternatives Evaluated
3-Lane Alternative
Alternatives Evaluated
3-Lane/2-Lane with Parking Alternative
Alternatives Evaluated
3-Lane/2-Lane with Parking AlternativeOnly 5 On-Street Parking Stalls Created.
Alternatives Evaluated
4-Lane Cross Section
3-Lane Cross Section
Alternatives Evaluated
Other 3-Lane Corridors in Mason City
Corridor Vehicles per Day
Eisenhower Ave 3,540 - 9,200
Taft Ave 7,100 - 7,500
IA 122 5,600 - 7,800
Illinois Ave 5,800 - 6,800
Monroe Ave 6,800
19th St SE 4,640
US Hwy 65 6,400 - 7,500
Benefits of 3-Lane Conversion
47% Crash Reduction Factor Possible(Source: Crash Modification Factor Clearinghouse)
Existing Crash History• 83 Total Crashes• Total Estimated Economic
Loss = $1,573,000
• Nearly 3x Statewide
Average Crash Rate for
similar facilities
Benefits of 3-Lane Conversion
• Improved Vehicle Safety
• Improved Pedestrian Safety
• Traffic Calming
• Improved Emergency Response Time
• Potential Bike Accommodation
Analysis Results
• Analysis based on 2040 Traffic Forecasts for
the corridor
• Minimal operational differences identified
between alternatives
• Acceptable Traffic Operations identified for all
alternatives.
Analysis Results
Northbound US 65 Travel Time
Analysis Results
Southbound US 65 Travel Time
Traffic Study Conclusions
• 3-Lane Alternative provides similar traffic
operations to the 4-Lane Alternative.
• 3-Lane Alternative provides possible 47%
reduction in crashes along the corridor.
Recommendations
The Iowa DOT recommends implementing the
3-Lane Alternative on US 65 between 6th Street
N. and 18th Street N.
If the City Council concurs with the DOT’s
recommendation, the 3-Lane Alternative will be
implemented.
Next Steps
• City Council Decision on Recommended
3-Lane Alternative
• 9th Street North Traffic Signal
• Finish Design Plans
• Project Letting January 2018
• Construction in 2018
Next Steps
9th Street North Traffic
Signal
• Existing Signal
Equipment has reached
its useful life
• Traffic volumes at
intersection may not
warrant a traffic signal
Questions
Thank you!