The Mill Basin Bridge is a double leaf trunnion bascule supporting the Belt (Shore) Parkway over Mill Basin in the Borough of Brooklyn. Each leaf carries six lanes of traffic - three in each direction. There is a sidewalk on each side of the leaf.

The New York City Department of Transportation has reconstructed the Belt Parkway Bridge over Mill Basin. The bridge was constructed in 1942 and had outlived its useful service life. Due to the effects of age, weather and increased traffic volume, reconstruction was deemed necessary. The work was substantially completed in December 2006