HLH Sound Wall Installation
HLH noise barrier walls can be ground-mounted by using drilled piers or pier and beam design. They can also be mounted directly to bridge parapets and highway concrete crash barriers, or even to existing wall structures.
For ground-mounted barriers, holes are drilled into the ground and reinforced concrete piers are poured and set. For parapet-mounted barriers, the existing parapet serves as the foundation for the HLH Noise wall system
In both of these foundation designs, anchor bolt attachments can be either cast in place or drilled and set to meet ASHTO requirements
Once the beams are installed our tongue & groove rails slide into place with ease. The rails are added to an interlocking stack 6” at a time until the desired height is reached & then topped with a matching cap. The result is an effective, maintenance free & attractive noise wall system.
Please click on the links below to view the installation specification drawings:
| Blueprint | File Size |
| Typical Above Ground Footing | 359K |
| Typical in Ground Footing | 323K |
| Typical Rail Install - W4 | 511K |
| Typical Rail Install - W6 | 562K |
| Vinyl Sleeve Kit Install | 315K |