Walkways - DNR - Environmentally Sensitive Areas
The Chance® Instant Foundation® Systems for walkways is the support system used in sensitive wetland areas.
A.B. Chance® helical technology, when used in boardwalk support, transfers the load to bearing stratum, isolates the structure from seasonal changes, and can be installed with portable hand-held equipment that provides low-impact installation.
Chance® helical screw anchors are used as instant foundation systems for boardwalks. These are typically connected to the walkway using a Chance® u-shaped bracket, which sleeves over or into the anchor shaft depending upon the anchor selected.
The piers are also a perfect solution for an environmentally sensitive area where typical construction traffic is prohibited. Minimal disturbance is acheived by using a hand-held torque head, or by a machine that sits on top of the walkway.
Chance® walkway piles are routinely installed in environmentally sensitive areas such as wetlands, beachfronts, prairies, and historical sites. Chance® Walkway Brackets are used to connect timbers or girder beams to Helical Piles. The split bracket design is more universal because beam thickness or tolerance is not a problem.
Helical Piers are a great alternate to weights or anchors when boats, ships, or buoys are mooring or resting in the harbor. These eco-friendly systems prevent any disturbances with respect to the fragile harbor bottom. The costs for the installation are typically more economical than other devices.
Learn more...about boardwalks
Learn more...about walkway brackets
Learn more...about boat moorings
BROCHURES
Instant Foundation® System for Environmentally Sensitive Areas(Bulletin 04-9409)
Technical Specifications
Technical Design Manual 2007(Section 08-23)
Technical Design Manual 2007(Section 07-48)
