The FM 646 overpass is falling down, falling down

​​​DICKINSON – Major changes are coming this spring to the intersection of FM 646 and I-45, and while the work is projected to make a positive impact on traffic flow, it will cause traffic delays in the short term.

Demolition of the FM 646 overpass over the interstate, slated for March 2019, is part of a plan to “flip” how traffic flows at that intersection. 

East-west traffic on FM 464 will be closed for six months. TxDOT is seeking to reduce the number of overpasses spanning I-45 to improve traffic flow and help in hurricane evacuations.

The project will be done in two phases. 

Phase one will involve the demolition of the overpass, construction of the northbound main-lane I-overpass, and reconstruction of the intersection and frontage roads.

The second phase will include reopening the intersection to east-west traffic and reconstruction of access roads on the southbound main-lane overpass.

The entire $232 million process is expected to take six months with east-west traffic expected to reopen in the fall.