MaineDOT - Casco Bay Bridge - is a bascule bridge that spans the Fore River, connecting South Portland and Portland. This bridge cost $130 million, making it the largest project undertaken by
![An October 2017 aerial view of the Casco Bay Bridge, connecting South Portland (foreground) with Portland, Maine | Library of Congress An October 2017 aerial view of the Casco Bay Bridge, connecting South Portland (foreground) with Portland, Maine | Library of Congress](http://tile.loc.gov/image-services/iiif/service:pnp:highsm:46500:46547/full/pct:25/0/default.jpg)
An October 2017 aerial view of the Casco Bay Bridge, connecting South Portland (foreground) with Portland, Maine | Library of Congress
![Skyline, Portland, Maine, Nov. 2020, and Casco Bay Bridge Overlooking Portland Harbor and Casco Bay Stock Photo - Image of landscape, casco: 201930850 Skyline, Portland, Maine, Nov. 2020, and Casco Bay Bridge Overlooking Portland Harbor and Casco Bay Stock Photo - Image of landscape, casco: 201930850](https://thumbs.dreamstime.com/z/skyline-portland-maine-nov-casco-bay-bridge-overlooking-harbor-has-one-last-working-waterfronts-left-america-s-201930850.jpg)