Contour lines on a site plan indicate elevation relationships.

Contour lines on a site plan indicate elevation relationships.

• A. They indicate water lines
• B. They indicate property dimensions
• C. False
• D. True

Answer: (D)

Contour lines show where the ground is at the same elevation, so they reveal how the land rises and falls across the site. Each line represents a constant elevation, letting you see elevation relationships between different points on the plan. The spacing of the lines indicates slope: tightly spaced lines mean a steep grade, while wider spacing indicates a gentler slope. This information is essential for understanding drainage, grading, access, and how fire apparatus might move across the site. They do not indicate water lines or property boundaries, which are shown with different symbols or lines on the plan.

Contour lines show where the ground is at the same elevation, so they reveal how the land rises and falls across the site. Each line represents a constant elevation, letting you see elevation relationships between different points on the plan. The spacing of the lines indicates slope: tightly spaced lines mean a steep grade, while wider spacing indicates a gentler slope. This information is essential for understanding drainage, grading, access, and how fire apparatus might move across the site. They do not indicate water lines or property boundaries, which are shown with different symbols or lines on the plan.