From: Andy Galli <
news@dcwater.com>
Sent: Thursday, April 23, 2020 4:24 PM
Subject: NEBT: Florida Avenue NW Construction Site Update
Construction Look-Ahead
Greetings
Neighbors.
We would like to let you know of some
scheduled and upcoming work as part of the Florida Avenue NW
Construction Site. The work will take place on Rhode Island Avenue
NW, between 3rd Street NW and Florida Avenue NW. As this
upcoming work becomes scheduled, we will inform you of its start date
and expected duration.
Median Removal on Rhode Island Avenue
In May 2020, DC Water’s contractor will begin removing portions of the
medians on Rhode Island Avenue between 2nd Street NW and 3rd
Street NW and between 3rd Street and Florida Avenue NW. It
is necessary to remove the median portions to allow for lane shifts and
create a work area on Rhode Island Avenue to support of the Florida
Avenue Construction Site.
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Map 1:
Aerial view of the Florida Ave NW Construction Site. Areas in yellow
indicate where construction will be conducted. White arrows show how
traffic will flow around the site. Blue lines reflect parking
restrictions.
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Travel and
Parking Restrictions
- Travel lanes in each direction of Rhode Island
Avenue between North Capitol Street NW and Florida Avenue will be
reduced to two lanes.
- Parking restrictions will be in place on each
side of Rhode Island Avenue between Florida Avenue and North
Capitol Street.
- Southbound traffic on the 1800-block of 3rd
Street will be limited to right turns only onto Rhode Island
Avenue.
Site
Mobilization
Once median removal is complete, DC Water’s contractor will begin the
mobilization of a construction work area on Rhode Island Avenue,
between 3rd Street and Florida Avenue. This work area
mobilization will include setting up a site perimeter, potholing for
underground utilities, installing erosion and sediment controls, and
installing temporary storm water management measures. Mobilization will
create a construction work zone that will result in the temporary
closure of the middle eastbound and westbound lanes of Rhode Island
Avenue.
At this construction site DC Water’s contractor will install vertical
soil-freeze pipes. Ground freezing is a construction method used to
stabilize the soil around an excavation area.
Potholing and Underground Utilities
Following construction site mobilization, DC Water’s contractor will
begin below ground investigations to assess the locations of
underground utilities in Rhode Island Avenue between 3rd
Street and Florida Avenue. Work will consist of drilling several holes,
approximately 1’ X 1’, into the street, and a vacuum truck will remove
the underlying soil to locate any electrical or water lines. Upon
completion the soil will be replaced, and the site will be restored.
The work will take place in the construction site in the median area of
Rhode Island Avenue.
Pre-trenching and Guide Wall Work
Following potholing for underground utilities in Rhode Island Avenue,
workers will begin pre-trenching and constructing guide walls for near
surface structures. Pre-trenching involves excavating a narrow trench
approximately 10 feet deep to ensure that no unknown utilities exist
within the area planned for future excavation. Guide wall installation
involves excavating an area approximately 4 feet wide and 10 feet deep
and installing concrete walls to keep the deep excavation machine in
proper position as it digs the 90-feet deep shaft. Pre-trenching and
guide wall construction should take approximately 6 weeks to complete.
New Pedestrian Detours
The west crosswalk at Rhode Island Avenue NW and 3rd Street
NW will be closed. Please follow pedestrian detour signs.
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Project
Details
The Northeast Boundary Tunnel is the largest component of the Clean
Rivers Project. It begins south of RFK Stadium and will extend north to
Rhode Island Avenue, NE and west to 6th Street NW. When
finished, the approximately five-mile long tunnel segment will complete
the Anacostia River Tunnel, a 13.1-mile-long tunnel that ends at the
Blue Plains Advanced Wastewater Treatment Plant. This project will
significantly reduce chronic flooding in the areas it serves, as well
as reduce the amount of combined sewer overflows into the Anacostia
River.
For More Information
To receive
email updates about NEBT construction, please send an email to dccleanrivers@dcwater.com
24/7 Northeast Boundary Tunnel Project Hotline: (800)
988-6151
Public Outreach Coordinator: Andy Galli, agalli@dcwater.com
Public Outreach dccleanrivers@dcwater.com
Northeast Boundary Tunnel Project: dcwater.com/NEBT
DC Clean Rivers Project: dcwater.com/clean-rivers-project
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