50’ – 100’ before the approach slab.Saw Cutting – Full Depth Relief Joint

Full depth saw cut.Preparing Compression Seal – 4” cut

Lubricant cures and becomes an adhesive.Applying Adhesive

Simple installation.Installing Compression Seal

3/8” below roadway surface.Recess Material Below Roadway Surface

Gives roadway somewhere to expand – leaving the expansion joint for bridge movement.

Completed Seal

Due to a closed expansion joint and continued roadway pressure

Roadway Damage

Damage due to roadway pressure and closed expansion joint Approach Slab

Relieves roadway pressure Compression Seal Installation

Provides for roadway growth and preserves existing expansion jointsCompression Seal