The fact that nearly 70,000 bridges in America (one out of every nine) is considered structurally deficient is one of the biggest infrastructure challenges our nation is facing. Concrete bridge deck deterioration is one of the most common bridge maintenance problems affecting the service life of bridges. One cause of the deterioration is the penetration of moisture and chlorides into the concrete with subsequent corrosion of the steel reinforcement.

To prevent this problem, Dek-Shield LLC has engineered a waterproofing concrete protection system named the Dri-Span System. It is a perfect remedy for the problem at hand. The use of the Dri-Span System is a solution to stop deterioration by preventing moisture and chlorides from reaching the concrete. This is achieved by waterproofing the concrete deck with an impenetrable barrier.



The Dri-Span system is a combination of specially engineered waterproofing membranes that are compatible to each other and to the other components of the bridge construction. There are three component products in the system.


A quick dry liquid coating, used to prepare the concrete substrate and to enhance the adhesion of the waterproof membranes to the bridge deck ensuring a perfect waterproofing foundation.


Dri-Span membrane

A 5mm thick waterproofing membrane prefabricated as polyester reinforced Atactic Polypropylene (APP) modified bitumen roll. The top finish is silica sand.


Flex Membrane

A 4mm thick softer deck waterproofing membrane reinforced with a non-woven continuous fiber polyester mat. Used for curb line flashing owing to superior elongation properties.



 Get to know our products better. Click on the files below to have an insight towards the technical know-how of our perfectly engineered waterproofing systems.