Southwest of Hockessin along Grant Avenue between Millcreek Road and Evanson Road.
The project consists of four (4) corrugated metal pipe arches with moderate to severe corrosion. The pipes are beyond their expected 30-year service life and was deemed structurally deficient by DelDOT's Bridge Management Section.
The project involves the replacement of corrugated metal pipes with a concrete rigid frame. The approach roadways will be reconstructed as needed and riprap will be placed in the channel, upstream and downstream, for scour protection. The work will be performed under full road closure with detour.
Design work to be completed no later than April 2019.
Construction work to be completed by the end of September 2020.
(Reviewed and updated on 06/12/2018)