Site Evaluation & Layout Flashcards

An easement is discovered running along the rear of a property where a fence is planned. What is the installer's primary responsibility?

Answer: Verify with the easement holder whether a fence is permitted within it

Easements grant rights to third parties, and the fence may need to be removable or excluded from the easement area; always verify before installing.

What is the purpose of performing a 3-4-5 triangle check during fence layout?

Answer: To verify that a corner is perfectly square (90 degrees)

The 3-4-5 method uses the Pythagorean theorem to confirm a 90-degree corner angle, ensuring fence lines run perpendicular at corners.

Which of the following site conditions most significantly increases the risk of post frost heave?

Answer: Clay-rich soil in a region with deep freeze-thaw cycles

Clay soils retain moisture and expand significantly during freeze-thaw cycles, creating upward pressure that can push posts out of the ground.

When evaluating a site where the fence will be near a body of water, which additional site factor must be assessed?

Answer: Flood zone designation and local floodplain regulations

Sites in designated flood zones may have height restrictions, material requirements, or permit conditions for fences that can obstruct water flow.

A homeowner asks you to install a fence along a road right-of-way. What should you do first?

Answer: Contact the local municipality or road authority to determine if a permit is required

Road rights-of-way are controlled by governmental entities, and fences within them typically require permits and must meet specific setback and sight-line requirements.

During a site evaluation, you observe that one side of the property has significant wind exposure while the other side is sheltered. How should this influence fence design?

Answer: Select a solid panel design for the windward side and open picket for the leeward side

Exposed windward sides require more wind-load resistance, while sheltered sides may use more open designs, balancing structural needs with aesthetics.

What does 'interpolating grade' mean when performing a fence site survey on uneven terrain?

Answer: Determining intermediate ground elevations between known reference points

Interpolating grade involves estimating or measuring ground elevations between established survey points to plan post heights and panel transitions on sloped terrain.