). Your Engineer may want to see Topographical Surveys of the area.
The most common type of retaining walls are segmental interlocking walls (SRWS) because of the cost, ability for a DIYer and flexibility of layout (straight, inside or outside curves) and variable heights. I assume this is what you are referring to.
The most common height for engineering to be required in the U.S. is either 4' or 5', since it is just a gravity wall if less than that. Here, the municipalities even provide "generic" drawings for the construction of the major brands of walls. - It is a "no-brainer". If the block is a local "knock-off" or a copy, it may not work for the details. These drawing are also routinely used by the municalities for local crews to build walls up to the 4' oor 5' height without any engineering on municipal projects.
Drawing are always good for getting a permit (if required legally or for your protection) are very helpful. If you try to avoid building several lower walls set back, make sure you show those to cover yourself. If you have a "generic" design sheet, attach it to any application to eliminate questions.
All of the major brands (Allan, Anchor, Keystone and Versalok) have outstanding sights for construction tips that work for all similar walls. These units are made by local manufacturers in most areas and countries. They also have engineering guides for engineers and an engineer on staff for professional assistance to other engineers.
It sure is a good, dursablr method for landscape of just for straight walls compared with the cost and problems associated with poured walls and footings since a SRW cannot use a concrete footing, steel reinforcement or mortar. If you have a large wall, they can be engineered up to 40' high last I observed.
Dick
The most common height for engineering to be required in the U.S. is either 4' or 5', since it is just a gravity wall if less than that. Here, the municipalities even provide "generic" drawings for the construction of the major brands of walls. - It is a "no-brainer". If the block is a local "knock-off" or a copy, it may not work for the details. These drawing are also routinely used by the municalities for local crews to build walls up to the 4' oor 5' height without any engineering on municipal projects.
Drawing are always good for getting a permit (if required legally or for your protection) are very helpful. If you try to avoid building several lower walls set back, make sure you show those to cover yourself. If you have a "generic" design sheet, attach it to any application to eliminate questions.
All of the major brands (Allan, Anchor, Keystone and Versalok) have outstanding sights for construction tips that work for all similar walls. These units are made by local manufacturers in most areas and countries. They also have engineering guides for engineers and an engineer on staff for professional assistance to other engineers.
It sure is a good, dursablr method for landscape of just for straight walls compared with the cost and problems associated with poured walls and footings since a SRW cannot use a concrete footing, steel reinforcement or mortar. If you have a large wall, they can be engineered up to 40' high last I observed.
Dick
