HLH Noise Barrier Wall Basics
HLH Walls noise barrier system is essentially a post and panel system. Vertical posts are anchored to the ground using, precast or poured footings. Panels span horizontally or vertically between the posts and rest directly on the footings. Post spacing’s up to 14 feet can be accommodated. Wall heights over 30 feet have been constructed.
The HLH Walls Noise barrier system is designed to meet AASHTO guidelines. All manufacturing is carried out under regulated standards. Testing for structural integrity, acoustic performance, durability, (such as freeze-thaw, and fire), are performed on a regular basis. Reports are available upon request. All assembly of components uses non rigid connections to allow for thermal, frost heave, and settlement movements.