A permit is not required, however all retaining walls must be no higher than 6 feet and must be a minimum of 3 feet from the property line. Walls that are designed as a fence or barrier require a permit.

All EP Henry Retaining Wall products can be used to build steps. The wall units are used for the riser and the caps for the treads (Bullnose Pavers can also be used for treads). Make sure you pay attention to local codes that dictate the minimum step height, tread depth and hand rail requirements.

Since you will likely be changing the grading of the land by installing a retaining wall, you will have to file a Grading and Clearing Permit application. This Application is available from the Engineering Division and has a fee of $50 per acre (the minimum fee is $50). The retaining wall location and size will have to be shown on the application documents.

We have 4" Windsor and Border Stone block for borders and garden walls. We have 6" Diamond block for residential landscape walls. We have 8" Vertica Pro, Vertica and Diamond Pro for large commercial walls. Anchor Wall

You should consider installing retaining walls for erosion prevention. They are also used for the beautification of an area.

Figure #4) There is a reason why cracks appear in concrete foundation walls or retaining walls. You may have a problem developing. Sometimes these cracks don’t worsen and sometimes they happen so slowly you don’t notice the subtle progressive change. It is best to have this problem looked at and monitored by an experienced structural contractor and a professional structural engineer.

Many Unilock retaining walls can be used for this application. Whenever building a retaining wall 39' (1 meter) you should consult a professional enginer.

The Seattle Residential Code (SRC) Sec R105.2 (pg. 4) allows you to build a retaining or rockery wall up to 4’ high, measured from depth of footing, without a building permit. However, other code requirements and development standards may impact your project to the point where a permit is still required. You can contact a permit specialist by phone (see here for phone number and hours), or visit the Applicant Services Center.

Some typical signs of landslide danger are listed in the pamphlet "How to protect yourself and your family when the landslip warning is in force." or from the Hong Kong Slope Safety Website

NCMA and ASTM require that the blocks obtain a minimum of 3000 psi. Compressive strength tests, done on a regular basis, on the GeoStone module have always exceeded 4000 psi.

TrueGreen Sports, utilizing the services of one of the area's most respected landscape companies, Providence Lawn and Landscape of Manassas, is able to provide you with any landscaping design and installation service your project might require, including natural stone retaining walls, ponds, patios, waterfalls, and all varieties of plantings.

A permit is required when the wall is over 4-feet high including the footing depth. For more information on fence permit requirements, Fence & Wall Permit Requirements. You may also contact the Permit Specialist.

Avalon Pools can handle all your retaining wall needs. From interlocking block to brick or stone-faced cinder block; from stacked stone to landscape timbers.

Again this will depend on your home's current wiring situation. If the installation technician does need to install new outlets, your permission and satisfaction are a priority.

adult, non-participating observer is required at the grand prize hole during the event and the yardage for each selected prize hole must meet our minimum distance requirements. Prizes over $25,000 require two observers. Observers on the bonus prize holes are optional

We have never had any documented evidence that insects got in to an attic through our ridge vent. Wasps and hornets do not build nests in our products. The size of our openings are the smallest openings recommend by most major building codes for vent openings.

Documentation provided by a new employee in support of the I-9 should not be photocopied by the employing department. It should only be used in the review process to validate the I-9 but should not be copied nor retained by the department. A photocopy of the validated I-9 should be retained in the employing department ONLY until the department is confident that the original I-9 has been received in Payroll Services AND the employee has received his/her first payroll check.

Yes, the bearings are over-packed at the factory. This is a normal occurrence with Double Row Bearings.

Yes, good drainage is essential for healthy plant growth. Pots that do not have drainage holes are best used as decorative containers. You can place a container that has drainage within the decorative pot if you like.