INFORMATION

Project Limits:

Approximately 200 feet south and 300 feet north of the bridge along Polly Branch Road.

Project Need:

Bridge 3-409 is located north of Selbyville in Sussex County, Delaware. The structure consisted of three 71 inch x 47 inch corrugated metal pipe arches with a total length of approximately 50 feet and a sack rip-rap headwall encompassing the inlet and outlet of the structure. The replacement was due to significant corrosion and subsequent diminishing structural integrity of the structure.

Project Overview:

The scope of the project was to replace the existing corrugated metal pipe arches with three 5 foot reinforced concrete pipes at approximately 60 feet in length. Additional improvements included minor approach roadway work, placing rip-rap in the stream for scour protection and removal of the sack rip-rap headwall. The work will be performed under a full road closure with a posted detour.

Project Timeline:

Design Phase:

Design work completed October 2014.

Construction Phase:

Construction work completed October 2015.



(Reviewed and Updated on 4/20/2016)