SAFETY INSPECTION OF IN-SERVICE
BRIDGES- CHAPTER 11 EXAM
QUESTIONS & A+ GRADED ANSWERS
Elements of a Channel (List): - Correct Answer ✔✔ Channel
Streambed
Embankments
Stream FLow
Freeboard
Floodplain
Hydraulic Opening
Hydraulic Control Structures
Channel (definition): - Correct Answer ✔✔ The well-defined depression, which contains
and guides stream flow during normal flow conditions
Streambed (definition): - Correct Answer ✔✔ The bottom or floor of the Channel
Streamflow (definition): - Correct Answer ✔✔ The water, suspended particles,
chemicals, and any debris moving through the channel
Streamflow - Correct Answer ✔✔ ________ is the water, suspended particles,
chemicals, and any debris moving through the channel.
Hydraulic Opening (definition): - Correct Answer ✔✔ The ________ is the entire area
beneath the bridge, which is available to pass flood flows.
Floodplain (definition): - Correct Answer ✔✔ The ________ is the overbank area
outside the channel that carries flood flows in excess of channel capacity.
Streambed (definition): - Correct Answer ✔✔ The "thalweg" elevation defines the lowest
elevation of the ________.
Freeboard (definition): - Correct Answer ✔✔ ________ is the term used to describe the
distance from the bottom of the superstructure to the top of the water surface.
Riprap (definition): - Correct Answer ✔✔ Properly sized and graded rock that is either
natural or manmade, placed adjacent to abutments, piers, or along embankments.
BRIDGES- CHAPTER 11 EXAM
QUESTIONS & A+ GRADED ANSWERS
Elements of a Channel (List): - Correct Answer ✔✔ Channel
Streambed
Embankments
Stream FLow
Freeboard
Floodplain
Hydraulic Opening
Hydraulic Control Structures
Channel (definition): - Correct Answer ✔✔ The well-defined depression, which contains
and guides stream flow during normal flow conditions
Streambed (definition): - Correct Answer ✔✔ The bottom or floor of the Channel
Streamflow (definition): - Correct Answer ✔✔ The water, suspended particles,
chemicals, and any debris moving through the channel
Streamflow - Correct Answer ✔✔ ________ is the water, suspended particles,
chemicals, and any debris moving through the channel.
Hydraulic Opening (definition): - Correct Answer ✔✔ The ________ is the entire area
beneath the bridge, which is available to pass flood flows.
Floodplain (definition): - Correct Answer ✔✔ The ________ is the overbank area
outside the channel that carries flood flows in excess of channel capacity.
Streambed (definition): - Correct Answer ✔✔ The "thalweg" elevation defines the lowest
elevation of the ________.
Freeboard (definition): - Correct Answer ✔✔ ________ is the term used to describe the
distance from the bottom of the superstructure to the top of the water surface.
Riprap (definition): - Correct Answer ✔✔ Properly sized and graded rock that is either
natural or manmade, placed adjacent to abutments, piers, or along embankments.
