At the same time, the Brooklyn Heights Promenade was deteriorating significantly, and was set to undergo renovations starting 2020. The structure is supported by steel roads inside rebar, which is corroding due to the seeping of road salt into widening cracks. If nothing was done on the roadway by 2026, weight restrictions would have to be implemented, with trucks diverted to local roads, and by 2036, the city would have to shut down this section of the BQE. In fall 2018, the New York State Department of Transportation (NYSDOT) proposed rebuilding the double-decker, section of I-278 running under the Brooklyn Heights Promenade, which had deteriorated severely over the years. Two options were proposed.