NorthernVirginiaContractor.com can help you find a masonry contractor to build just about any type of retaining wall your home needs. For the most part any wall over two feet will require a permit in Fairfax, Arlington, Loudoun, and Prince William County. Most retaining walls over 4 feet will require an engineer to draw and stamp the plans so they can be approved in most Counties in Northern Virginia. There are many types of material that can be used to build a retaining wall ranging from segmental block systems, stone, brick, CMU, concrete, and pressure treated wood. Fairfax, Loudoun, Arlington, and Prince William counties have county approved county details that your contractor can use for most retaining walls under four feet.
When the height of a retaining wall surpasses four feet it is deemed a critical structure and a plan reviewer will need to check your engineered retaining wall specifications. There may be thousands of pounds of soil pushing on even a small retaining wall so it must be reinforced properly to keep it from collapsing. Before doing any digging in your yard for your retaining wall your contractor must first call Miss Utility of Virginia to mark all the necessary underground gas, water, electrical, and get utility clearances.
Have your contractor call 811 or 1-800-552-7001 to get an active MISS utility ticket. After your contractor has a active Miss Utility of Virginia ticket they are ready to start the project. Now your contractor is ready to start the excavation process. If you or your contractor plan to install a large retaining wall system mass dirt and footer construction my require excavation equipment. Most Northern Virginia retaining contractors use hand digging methods to reduce collateral yard damage. Following the approved plan for your retaining wall will require your contractor to dig 24" for proper footer depth.
All retaining footers must be 24" to below the frost line. Your contractor must make sure the retaining will now be set on a base of 2000 PSI soil, this soil will be inspection will be cared out by a County inspector. The nest step in building a engineered retaining wall system is to place the re bar steel that will hold your project in place. All steel rebar shall conform to ASTN A572 fy+50 KSI, UNO. On most rebar footers your contractor will install 2 strands of #4 REBAR in the footer base " 6 inches above the footer floor. The next step is to install the retaining steel rebar L's that may range from #3 to #5 rebar. When the steel and rebar have been inspected by the Fairfax, Loudoun, Prince William, and Arlington County your retaining wall footer will be passed.
The next step is to pour concrete into your retaining wall footer. Our contractor use a minimum of 3000 PSI concrete in all footing systems that has a 1' depth and is set to cover all rebar. After your retaining wall concrete footer is set your contractor will start setting up the CMU (block) that will form your retaining wall system. After the CMU of your retaining wall is installed all cells need to to be filled with concrete. There are many brands of segmental block retaining wall systems in use in Northern Virginia. These brand names include Belgard, Keystone, and EP Henry. Also many of our contractors prefer to build a retaining wall with CMU (concrete masonry unit) and then veneer it with thin stone or clay face brick. We have many way and contractors to build the wall system you need.