Page 19 - Jan-Feb2019
P. 19

BEFORE                                                                               Ryan McReynolds and Phillip Jones, representing
                                                                                      TCAPWA, presented the plaque for the TCAPWA
 DURING CONSTRUCTION                                                                  Project of the Year to the large and very proud
functional layout to a more aesthetically                                             group from Chattanooga, including Justin Holland,
pleasing and environmentally beneficial                                               Rusty Belvins, Catherine Vogel, Kimberly Strong,
boulevard-type roadway. The existing                                                  Joey Wormsley, Kristin Franklin, Bobby Allen, and
roadway asphalt was reduced from up                                                   Bonnie Dodson.
to 45 feet of pavement to two 12-foot-
wide asphalt pavement lanes separated      basins, manufactured devices and           symposium was on November 1, 2018,
by a median. The 12-foot lanes are         modular wetland systems. The green         and served as a technical workshop. The
shared by vehicles and bicycles as this    infrastructure proposed for this portion   goal of the symposium was to equip
is a low-speed, residential roadway.       of the project concentrated on one-inch    local engineers, landscape architects,
There is now on-street parking along       capture and infiltration of stormwater     developers and designers with the
the boulevard. Within the medians          runoff.                                    knowledge of a variety of techniques to
in the right-of-way, infiltration beds                                                meet the City of Chattanooga Stormwater
and trenches, bioretention, biofilters,    Continued Technical Education              requirements. Included in the day was a
constructed stormwater wetland basins,                                                tour of Anderson Avenue.
manufactured devices and modular             Since the completion of the project
wetland systems were installed to          in April 2018, we have had multiple          On November 7, 2018, members
assist with the demonstration aspect       educational opportunities with various     of the Georgia Association of Water
of this project. New five-foot concrete    groups.                                    Professionals visited Chattanooga and
sidewalks were installed within the                                                   spent time on Anderson Avenue, looking
right-of-way, with a six- to seven-          On May 25, 2018, the Department          at the green infrastructure that was
foot-wide landscape area between the       of Public Works held a ribbon cutting      installed/constructed and listening to
sidewalk and roadway. These landscape      and showcased the green infrastructure     what the City has learned during this
areas allow the use of infiltration beds   improvements made in the Highland          project.
and trenches, bioretention, biofilters,    Park area through a demonstration. City
constructed stormwater wetland             Council members, Mayor Andy Berke,         Monitoring
                                           and members of the community were in
                                           attendance.                                  A monitoring program is to be
                                                                                      implemented to enable the City to
                                             The City of Chattanooga and Grace        determine both the quantity of water
                                           Frank Group sponsored the Chattanooga      infiltrated and the associated entrapment
                                           Stormwater Symposium in partnership        and reduction in pollutants. BMPs can
                                           with greenspaces and the American          be measured individually and in series to
                                           Society of Civil Engineers Environmental   determine their effectiveness, operational
                                           Water Resources Institute. The             and maintenance issues, and any
                                                                                      additional benefits or unforeseen issues.
                                                                                   	  It is anticipated that the monitoring
                                                                                      will be accomplished via a partnership
                                                                                      between the City, the neighborhood
                                                                                      association and local universities.
                                                                                      Monitoring results for this specific
                                                                                      demonstration project can be collected
                                                                                      and used to bring about equally efficient
                                                                                      or even better designs for future green
                                                                                      infrastructure projects throughout the
                                                                                      City.

                                                                                      View online at tnpublicworks.com	  19
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