Tillary Street between Adams Street and Cadman Plaza East is a critical connection for cyclists from Brooklyn Heights, Cobble Hill and Red Hook to the Brooklyn Bridge, with a protected bike lane separating them from drivers on the extra-wide street.

While the two-way lane has long been a favorite of illegal parkers, for the past week or two it’s been blocked by construction barriers, according to reader Trammell Hudson, who sent in this photo. As a result, cyclists are shunted into a lane of general traffic, and the sudden closure forces some cyclists to ride against traffic approaching the dangerous intersection with Adams Street.

A section of the street collapsed in recent weeks, and while DOT has done some work on the site, more work is needed, according to Gene Corcoran of the U.S. District Court, which is located on this block of Tillary Street. Streetsblog has an inquiry in with DOT to learn more. We’ll let you know if we hear anything.

Update: According to DOT, as of this morning there’s now a bike detour here that separates cyclists from car traffic. The detour will be in effect until DOT and DEP fix the depression in the road.