FDOT Drainage and Stormwater Management 2

Question 1

What is the minimum pipe cover required under FDOT traveled roadways for storm drain pipes?

Accepted Answer

18 inches

Answer

FDOT requires a minimum of 18 inches of cover over storm drain pipes under traveled roadways to protect against traffic loads and prevent crushing.

Question 2

According to FDOT standards, what is the minimum slope required for storm drain laterals to maintain self-cleaning velocity?

Accepted Answer

0.30%

Answer

FDOT requires a minimum slope of 0.30% for storm drain laterals to maintain the minimum self-cleaning velocity of approximately 2 fps.

Question 3

What is the function of a mitered end section (MES) on a culvert pipe?

Accepted Answer

Transition the pipe end to match the slope of the fill embankment

Answer

A mitered end section transitions the pipe end at an angle to match the embankment slope, providing a neat appearance and reducing scour.

Question 4

Under FDOT specifications, what bedding material is typically required for reinforced concrete pipe in Type II bedding?

Accepted Answer

Coarse sand or granular material

Answer

FDOT Type II bedding requires coarse sand or approved granular material shaped to provide uniform support along the pipe barrel.

Question 5

What FDOT environmental permit is typically required for stormwater management systems discharging to state waters?

Accepted Answer

Environmental Resource Permit (ERP)

Answer

An Environmental Resource Permit (ERP) from the Florida Department of Environmental Protection or water management district is required for stormwater systems discharging to state waters.

FDOT - Florida Department of Transportation Practice Test

FDOT - Florida Department of Transportation Practice Test

FDOT Drainage and Stormwater Management 2