FDOT Professional Certification Exam With
Correct Answers Version(2026/2027)
1. What is the standard lane width for a travel lane on a high-speed flush-
median roadway?
Correct Answer: 12 feet.
2. What is the minimum horizontal clearance for an unshielded light pole
on a roadway with a design speed of 45 mph?
Correct Answer: 18 feet.
3. In FDOT vertical curve design, what does the "K-Value" represent?
Correct Answer: The horizontal distance required to effect a 1% change
in gradient.
4. What is the standard FDOT maximum grade for a low-speed urban
arterial?
Correct Answer: 6 percent.
5. Which manual governs the design of bicycle and pedestrian facilities on
the State Highway System?
Correct Answer: Florida Design Manual (FDM) Part 2.
6. Define "Design Speed" per FDOT standards.
Correct Answer: A selected speed used to determine the various
geometric design features of the roadway.
7. What is the minimum radius for a design speed of 50 mph when the
maximum superelevation is
?
Correct Answer: 833 feet.
8. What is the standard border width for a new construction RRR project on
an urban arterial?
Correct Answer: 10 feet.
9. For a 4-lane divided highway, what is the standard width of the inside
shoulder when a barrier is present?
Correct Answer: 8 feet.
, 10.What is the purpose of a "Clear Zone" in FDOT safety design?
Correct Answer: To provide an unobstructed area beyond the edge of
the traveled way for the recovery of errant vehicles.
11.What is the minimum diameter for a cross drain pipe under a high-
volume roadway?
Correct Answer: 18 inches.
12.FDOT drainage requires the Hydraulic Grade Line (HGL) to be how far
below the gutter elevation for a 10-year storm?
Correct Answer: 1.13 feet.
13.What is the standard duration used for calculating rainfall intensity in the
FDOT Zone 2 IDF curve?
Correct Answer: 10 minutes.
14.What document governs erosion and sediment control requirements for
FDOT projects?
Correct Answer: The State of Florida Erosion and Sediment Control
Designer and Reviewer Manual.
15.What type of pipe material is prohibited in environments with extremely
aggressive pH levels?
Correct Answer: Corrugated Steel Pipe (CSP).
16.What does "MOT" stand for in FDOT construction?
Correct Answer: Maintenance of Traffic.
17.What is the required minimum compressive strength for Class II concrete
used in bridge substructures?
Correct Answer: 3,400 psi.
18.In asphalt binder grade PG 76-22, what does "PG" stand for?
Correct Answer: Performance Grade.
19.What is the primary purpose of a "Tack Coat"?
Correct Answer: To ensure a bond between the existing pavement and
the new overlay.
20.Which FDOT office is responsible for the Approved Product List (APL)?
Correct Answer: The Program Management Office.
Correct Answers Version(2026/2027)
1. What is the standard lane width for a travel lane on a high-speed flush-
median roadway?
Correct Answer: 12 feet.
2. What is the minimum horizontal clearance for an unshielded light pole
on a roadway with a design speed of 45 mph?
Correct Answer: 18 feet.
3. In FDOT vertical curve design, what does the "K-Value" represent?
Correct Answer: The horizontal distance required to effect a 1% change
in gradient.
4. What is the standard FDOT maximum grade for a low-speed urban
arterial?
Correct Answer: 6 percent.
5. Which manual governs the design of bicycle and pedestrian facilities on
the State Highway System?
Correct Answer: Florida Design Manual (FDM) Part 2.
6. Define "Design Speed" per FDOT standards.
Correct Answer: A selected speed used to determine the various
geometric design features of the roadway.
7. What is the minimum radius for a design speed of 50 mph when the
maximum superelevation is
?
Correct Answer: 833 feet.
8. What is the standard border width for a new construction RRR project on
an urban arterial?
Correct Answer: 10 feet.
9. For a 4-lane divided highway, what is the standard width of the inside
shoulder when a barrier is present?
Correct Answer: 8 feet.
, 10.What is the purpose of a "Clear Zone" in FDOT safety design?
Correct Answer: To provide an unobstructed area beyond the edge of
the traveled way for the recovery of errant vehicles.
11.What is the minimum diameter for a cross drain pipe under a high-
volume roadway?
Correct Answer: 18 inches.
12.FDOT drainage requires the Hydraulic Grade Line (HGL) to be how far
below the gutter elevation for a 10-year storm?
Correct Answer: 1.13 feet.
13.What is the standard duration used for calculating rainfall intensity in the
FDOT Zone 2 IDF curve?
Correct Answer: 10 minutes.
14.What document governs erosion and sediment control requirements for
FDOT projects?
Correct Answer: The State of Florida Erosion and Sediment Control
Designer and Reviewer Manual.
15.What type of pipe material is prohibited in environments with extremely
aggressive pH levels?
Correct Answer: Corrugated Steel Pipe (CSP).
16.What does "MOT" stand for in FDOT construction?
Correct Answer: Maintenance of Traffic.
17.What is the required minimum compressive strength for Class II concrete
used in bridge substructures?
Correct Answer: 3,400 psi.
18.In asphalt binder grade PG 76-22, what does "PG" stand for?
Correct Answer: Performance Grade.
19.What is the primary purpose of a "Tack Coat"?
Correct Answer: To ensure a bond between the existing pavement and
the new overlay.
20.Which FDOT office is responsible for the Approved Product List (APL)?
Correct Answer: The Program Management Office.
