Access road criteria for lift stations specify that roads must be...

• A. Paved, 12 feet wide, and below the 100-year flood plain.
• B. Dirt road, 6 feet wide, with no flood considerations.
• C. Stairs and catwalks only.
• D. All-weather, 8 feet wide, and above the 25-year flood plain.

Answer: (D)

The requirement tests reliable, year‑round access to the lift station. An all‑weather road ensures the path remains usable in rain or snow, a must for regular maintenance and emergency response. Eight feet wide provides enough space for a service vehicle and equipment to pass safely without crowding, which is important for efficient access. Being above the 25-year flood plain protects the route from typical flood events, reducing the chance that floodwaters cut off access or damage the road and the equipment.

The other options fail because a dirt road lacks guaranteed usability in adverse weather, six feet is too narrow for typical maintenance vehicles, and stairs plus catwalks don’t provide a road suitable for vehicle access.