200 feet of approach roadway on both sides of each bridge.
There is significant corrosion at the waterline in both bridges with easily perforated sections at several locations throughout the pipes at Bridge 1-304. Bridge 1-304 is structurally deficient and was selected by the Pontis Bridge Management System for work. This bridge is ranked 2nd on the 2016 DelDOT Bridge Deficiency List. Bridge 1-302 is in fair condition, but it consists of metal pipes at the end of their service lives. Since Bridge 1-302 is near Bridge 1-304, it makes sense economically to group the two.
This work involves the replacement of the two (2) existing corrugated metal pipes with precast reinforced concrete pipes at two locations on SR9. Additional work includes the placement of riprap in the stream for scour protection, installation of guardrail as needed, and reconstruction of the approach roadway as necessary. Work will be performed under a full road closure with detour for vehicular traffic while pedestrian traffic will be maintained.
Design work to be completed no later than December 2018.
Construction work to be completed Summer 2019.
(Reviewed and Updated 02/08/2018)