On graded sites, the top of any exterior foundation shall extend above the elevation of which feature at the point of discharge?

On graded sites, the top of any exterior foundation shall extend above the elevation of which feature at the point of discharge?

• A. the street gutter at point of discharge
• B. the curb
• C. finished grade
• D. the property line

Answer: (A)

The correct choice is the street gutter at the point of discharge because it is critical for preventing water from pooling around the foundation of a structure. The elevation of the exterior foundation must be higher than the street gutter to ensure proper drainage and to reduce the risk of water infiltration into the basement or crawl space. When the foundation is set above the level of the street gutter, it allows runoff from rain or melting snow to flow away from the foundation instead of accumulating near it. This is an important consideration in building design and site grading to promote effective drainage and protect the integrity of the building. Options such as the curb and finished grade serve different roles in site grading and layout. The property line is relevant to zoning and property boundaries but does not directly influence the elevation required to manage water drainage effectively. Thus, elevation above the street gutter is a specific and necessary measure to ensure that water runoff does not adversely affect the foundation of a building.

The correct choice is the street gutter at the point of discharge because it is critical for preventing water from pooling around the foundation of a structure. The elevation of the exterior foundation must be higher than the street gutter to ensure proper drainage and to reduce the risk of water infiltration into the basement or crawl space.

When the foundation is set above the level of the street gutter, it allows runoff from rain or melting snow to flow away from the foundation instead of accumulating near it. This is an important consideration in building design and site grading to promote effective drainage and protect the integrity of the building.

Options such as the curb and finished grade serve different roles in site grading and layout. The property line is relevant to zoning and property boundaries but does not directly influence the elevation required to manage water drainage effectively. Thus, elevation above the street gutter is a specific and necessary measure to ensure that water runoff does not adversely affect the foundation of a building.