This week's bridge is the Dr. Theodore Kazimiroff Boulevard Bridge over the Bronx River in the Bronx. The Dr. Theodore Kazimiroff Boulevard runs along the western and northern borders of the New York Botanical Garden. The bridge is on the northern border of the garden, east of the southern terminus of the Mosholu Parkway, west of the Bronx River Parkway, before the boulevard continues east onto Allerton Ave.
I can find no information on the stats of the bridge, when it was built, etc. It is a stone arch bridge that carries auto traffic, and a rather narrow sidewalk on the north side. Fortunately, there is a wide shoulder area on the roadway next to the sidewalk, so cars don't go whizzing by right next to you, and if you need to step down to pass someone, it can be done safely. It does connect a nice bike path and greenway from Mosholu Parkway to paths northward through Bronx Park, and on the west side of the Bronx River Parkway one can run south to the Pelham Parkway. Also, the New York Botanical Garden is right across the street.
The bridge (I'm not even sure if that's its official name) and the Boulevard are named after Dr. Theodore Kazimiroff (1914-1980), a dentist who was a strong advocate for protection of ecosystems and natural features in the Bronx, especially in Pelham Bay Park. This portion of road north of Fordham Road, formerly a part of Southern Boulevard, was named after the doctor in 1981.