INFORMATION

Project Overview:

Bridge replacement

Project Limits:

Approximately 200 feet east and 200 feet west of the bridge.

Project Need:

The previous bridge consisted of two corrugated metal pipe arches with sack concrete headwalls upstream and downstream. The metal arches had significant corrosion at the waterline on both sides of the channel and was deemed structurally deficient by DelDOT's Bridge Management Section. The existing bridge is had been ranked 45th on the 2016 DelDOT Bridge Deficiency List. The bridge was replaced with adjacent box beams resting on stub abutments supported by piles.

Project Timeline:

Design Phase:

Design Work Completed: May 2016

Construction Phase:

Construction Completion: August 2017

Additional Comments:

The contractor was able to complete the above referenced bridge replacement in 31 calendar days.

Project Update:

DelDOT utilized all precast concrete bridge elements to accelerate construction. The Department also used Ultra High Performance Concrete (UHPC) in the beam joints and as an overlay to help eliminate future maintenance needs. FHWA also awarded DelDOT with $257,950 as a part of an Accelerated Innovation Deployment (AID) Demonstration grant that will showcase the innovative uses of UHPC. As part of the requirements for the AID grant, a monitoring strategy and report has been developed to track the installation and performance of the UHPC. The contract was awarded to Zack Excavating, Inc. on February 22, 2017. Construction of Bridge 1-438 began August 8, 2017 and was completed September 8th, 2017.

(Reviewed and Updated on 12/01/2017)