Public Hearing Announced for Bridge Work on I-684 over Byram River in Greenwich and North Castle

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Work on two bridges on I-684 – Connecticut Dept of Transportation Bridge No. 03514 in Greenwich, and New York State Dept of Transportation on Bridge No. 1052991 in North Castle, NY, will be presented during a public hearing on Thursday, Jan 26 at 6:00pm via zoom.

Please register for the virtual public information meeting at here (Zoom).

This meeting will also be livestreamed on YouTube: portal.ct.gov/ctdotvpimarchive.

The bridge supporting I-684 southbound belongs to the NY DOT. The bridge on the opposite side of the highway that supports I-684 northbound belongs to CTDOT.

Both bridges are structurally deficient, “due to the deteriorated post-tensioning strands which have caused the box beams to act independently of each other, ‘piano-keying,’ which has caused the decks wearing surfaces to deteriorate.”

Click here for the project description.

The proposed rehabilitation for both bridges involves reconstructing the backwalls and approach slabs, replacing the existing superstructure with prefabricated bridge units (PBUs),and installing a new waterproofing membrane and bituminous wearing surface.

I-684 will be milled and paved at the bridge and approaches.

The existing roadway geometry over the bridges will be maintained.

To perform construction and minimize traffic impacts, the superstructure replacements will occur during weekend bridge closures. The bridge in New York will be constructed first due to the poor condition of the bridge rail followed by the bridge in Connecticut.

Temporary crossovers onto each bridge will be constructed in the median allowing two lanes of both I-684 northbound and southbound to remain open during construction.

The three existing traffic lanes of I-684 northbound and southbound will be reduced to two lanes prior to shifting the traffic temporarily.

Work is anticipated to go begin in spring 2024 and be completed in one construction season.

Members of the public can submit comments and questions during the two-week public comment period following the meeting. Please direct comments and questions by February 9, 2023 to: