Department of Transportation
Dec 7, 2017

Project No.103-266, Bridge Nos.06795,06796,06797, I-395 NB & SB, over Multiple Brooks in Norwich

The Department of Transportation (Department) will conduct a Public Information Meeting concerning Project No. 103-266, consisting of the rehabilitation of Bridge Nos. 06795, 06796 and 06797, which carry I-395 NB and SB over Hammer Brook, Byron Brook, and an unnamed brook, respectively, in Norwich (City). 

 

All three bridges are asphalt-coated corrugated metal pipe culverts.  They were originally constructed in 1955 as part of the construction of I-395.  Bridge No. 06795 is an arch pipe culvert located approximately 300 ft. north of the Exit 14 Off-Ramp from I-395 SB. The culvert is approximately 95 inches wide and 67 inches tall with a total pipe length of 213 feet.  The culvert has reinforced concrete end treatments at both ends.  Bridge No. 06796 is a round pipe culvert located approximately 0.4 miles south of Lawler Lane crossing over I-395.  The culvert is approximately 72 inches in diameter with a total pipe length of 211 feet.  The culvert has reinforced concrete headwalls and flared wingwalls at both ends.  Bridge No. 06797 is an arch pipe culvert located approximately 0.2 miles south of Canterbury Turnpike crossing over I-395.  The culvert is approximately 72 inches wide and 48 inches tall with a total pipe length of 139 ft.  The culvert has reinforced concrete headwalls at both ends.  All three culverts carry two lanes of I-395 traffic in each bound.

The proposed work for Bridge No. 06795 is to install a cast-in-place (CIP) reinforced concrete lining along the invert of the existing arch pipe culvert.  An asphaltic coating will be applied along the remaining portion of the existing pipe not lined by concrete.  Grout will be used to fill voids at locations of perforations below the pipe and the new concrete lining.  CIP reinforced concrete flared wingwalls, cut-off walls and headwalls will be constructed at both ends, with a rounded entrance at the inlet.  Rounded stone riprap is to be installed at the inlet and outlet.  Permanent access roads and temporary staging areas will be constructed down from each bound of I-395 to facilitate construction at each end of the culvert.

The proposed work for Bridge No. 06796 is to slip-line the existing 72 in. diameter pipe culvert with a 54 in. inner diameter internally corrugated high-density polyethylene (HDPE) pipe.  Low-pressure grout will be used to fill the voids behind the existing pipe at areas of perforations and the annular space between the existing and proposed pipe.  Existing headwalls and wingwalls will be repaired, and cut-off walls will be constructed at both ends of the culvert. Rounded stone riprap is to be installed at the inlet and outlet.  Permanent access roads and temporary staging areas will be constructed down from each bound of I-395 to facilitate construction at each end of the culvert.


 

The proposed work for Bridge No. 06797 is to replace the existing 72 in. wide x 48 in. tall arch pipe culvert with a 5 ft. by 5 ft. precast concrete box culvert, approximately 35 ft. south of the existing culvert.  Cut-off walls and wingwalls will be constructed at both ends, with a rounded opening at the inlet.  One foot of natural stream bed material will be placed over the culvert invert, and rounded stone riprap will be installed at the inlet and outlet.  The brook will then be realigned through the new culvert and will allow the existing culvert to be abandoned in place by filling it with controlled low strength material. Permanent access roads and temporary staging areas will be constructed down from each bound of I-395 to facilitate construction at each end of the culvert.

Maintenance and protection of traffic during the rehabilitation of Bridge Nos. 06795 and 06796 will be accomplished by using temporary single lane and shoulder closures along I-395 during off-peak hours in order to allow for construction vehicles to enter and exit from the access roads. Traffic will be maintained in the existing lanes throughout construction as the majority of the work occurs within the existing culvert underneath I-395.

Maintenance and protection of traffic during the replacement of Bridge No. 06797 is anticipated to be handled in five stages progressing from east to west across I-395.  Open cut excavation with temporary earth retaining systems will be required to install sections of the new culvert and maintain traffic above. Each stage will occur in one of the two bounds and will require traffic to be reduced to one lane during a 36-48 hour period. Each lane closure period will be performed in accordance within the limitations of operations in order to coordinate the work when traffic volumes are at their lowest. As previously described for the other two sites, temporary single lane and shoulder closures along I-395 during off-peak hours will be required to allow for construction vehicles to enter and exit from the access roads.

Temporary and permanent wetland and watercourse impacts are anticipated, contingent upon the placement of the access roads.  Environmental permitting will be required for this project. Also, time constraints for unconfined in-water work are anticipated.  Impacts beyond the Right-of-Way are not anticipated for this project.

Construction is anticipated to commence in spring 2020 and be completed in fall 2020, assuming availability of funding and receipt of any required environmental permits or right-of-way acquisitions.  The estimated construction cost for the project is $2,600,000 and may be a combination of State and Federal funds.

The Public Information Meeting is being held to afford a full opportunity for the publicís participation and to allow open discussion of any views and comments the community may have prior to progressing the proposed project into the Final Design stage.

Plans will be available for public review.  Department personnel will be available during the meeting to discuss this project.  More detailed information is available at the Department's Office of Engineering, 2800 Berlin Turnpike, Newington, Connecticut, during office hours, Monday through Friday, 8:30 a.m. to 4:30 p.m., excluding holidays.  Anyone wishing to review the plans may contact Mr. Andrew J. Cardinali, Transportation Supervising Engineer, at (860) 594-3315.

All persons interested in this project are welcome to attend this meeting and discuss this project with Department personnel.

 


INCLEMENT WEATHER DATE: TUESDAY, DECEMBER 12, 2017


"TO SEE THE MINUTES OF THIS MEETING, PLEASE SELECT HERE"

Location: Norwich City Hall, Council Chambers at 100 Broadway, Norwich, Connecticut 06360-4431
This event is 34 miles from you (06111).

7 PM

Contact: Andrew Cardinali, Bureau of Engineering and Construction
Email: Andrew.Cardinali@ct.gov
Phone: (860) 594-3315
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