Banks and other entities sometimes require an SS-4 document with the TAX ID populated to the TAX ID field in the upper right hand corner of the document, as part of proof of an Tax Identification Number. The IRS TAX ID online application process does not provide a prepared SS-4.
Earth pressure at rest is the earth pressure that occurs when the wall in contact with the soil is at rest. Earth pressure at rest is an intermediate state between active earth pressure and passive earth pressure. In general, as a retaining wall is displaced under the influence of the soil behind the wall, the
Do you have to include At-Rest Pressures for Retaining Wall Design? An important aspect of At-Rest lateral earth pressures is that they typically take place at zero lateral wall displacement. This means that a wall will experience full At-Rest lateral pressures only if it does not yield.