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Project P -ST -SW -W -13 -02 Feasibility Report County Road D Reconstruction 20 • An 8 foot shoulder on the north side for bicycles and parking. • Two 11 foot lanes • A 4 foot shoulder on the south side b. Hafner Court to Victoria Street, S taff is proposing to construct a 4 0 foot wide street. The 4 0 foot wide street segment will include the following: • A right turn lane at Victoria Street. • A 9 foot shoulder on the north side for bicycles and parking. • Two 1 1 foot lanes • A 9 foot shoulder on the south side for bicycles and parking. 4. Traffic Management County Road D serves as a collector road . Traffic from the neighbo rhoods to the north, south, and east use it to get to County Road system. The traffic volume, while high for typical residential streets, is low for a collector road. Traffic speed is a source of concern for the residents that live on County Road D . The road is signed 3 5 mph. As indicated by the traffic counts, the 85 th percentile speed between Lexington Avenue and Chatsworth Street is 40 mph. The segment between Chatsworth Street and Victoria Street has an 85th percentile speed of 43 mph. The 85th per centile speed is the sp eed at which 85% of the traffic is travelling . Both segments are signed 35 mph. There is a school speed zone of 20 MPH in front of Emmet D. Williams Elementary School . In light of these concerns, and the fact that there is a schoo l speed zone located on the road, we are proposing to install permanent radar speed limit signs on the r oad as a part of this project. Radar speed limit signs (also called “driver feedback signs”) prompt speeding drivers to slow down. The signs detect and display a speeding driver’s velocity. This active feedback makes drivers aware of their speed. It also makes them feel like they’re being monitored. The result: speeders slow down. Also, we are proposing to install a pedestrian activated flasher at the Ch atsworth Street crosswalk. This will assist getting students safely across the street to get to Emmet D. Williams Elementary School . B. Storm Water C oncrete c urb and gutter will be install ed as a part of the street reconstruction project; existing catch basi ns will be adjusted to work with the new street alignment. Additional catch basins will be installed where needed. The boulevards and yards will be graded to drain to the street, where possible. Where this is not possible, catch basins will be extended into yards. This road is located within the Rice Creek Watershed (RCWD ). RCWD require s that this project provide volume control for the storm water runoff. This can be accomplished through the construction of infiltration trenches and rain gardens with in the County Road D right - of - way. These basins may require reconstruction every 10 -20 years.