NHI Safety Inspection of In-Service Bridges FINAL Updated Exam 2026
WITH Recent Newest Verified And Well Analyzed Exam Questions
(Actual Exam 2026-2027) Correct Detailed & Verified ANSWERS (100%
Accurate Solutions) ALREADY GRADED A+||NEWEST VERSION Of The
Exam Guarantee Pass!!
What movement occurs when the horizontal earth pressure acting on the wall
exceeds the friction forces that hold the structure in place? -ANSWER-Lateral
What movement occurs due to unsymmetrical settlement, lateral movement, or
combo due to horizontal earth pressure?f -ANSWER-Rotational
Flood plain -ANSWER-overbank area outside the channel which carries flood flows
in excess of channel cpacity
thalweg -ANSWER-lowest elevation in stream bed
freeboard -ANSWER-vertical distance between the design flood water surface and
the lowest point of the superstructure
waterway area -ANSWER-The entire area beneath the bridge which is available to
pass flood flows.
number one cause of bridge failures -ANSWER-flooding
channel -ANSWER-well-defined and confines the streamflow during normal flow
conditions
,streambed -ANSWER-bottom of the channel
streambank -ANSWER-slopped sides of the channel
streamflow -ANSWER-water, suspended sediment, and any debris moving
through the channel
flood plain -ANSWER-overbank area outside of the channel, which is available to
pass flood flows
normal stage -ANSWER-streamflow stage prevailing during the greater part of the
year
river training structures -ANSWER-alter flow of the river
spurs -ANSWER-linear structures designed with properly sized and placed rocks
which protect the stream bank by reducing the flow velocity
guide banks -ANSWER-dikes which extend upstream from the approach
embankment at either or not sides of the bridge opening to direct flow through
the opening
Armoring countermeasures -ANSWER-resist erosive forces caused by the flow, but
tend not to alter the flow significantly
, riprap -ANSWER-layers or facing of properly sized and graded rock or broken
concrete placed or dumped to protect an abutment, pier, or embankment from
erosion
gabions -ANSWER-rectangular rock or cobble filled wire mesh baskets anchored
together to the surface they are protecting
slope protection -ANSWER-geotextiles, wire mesh, riprap, paving, intended to
protect the slope from erosion, slipping, or to withstand external hydraulic
pressure
channel lining -ANSWER-rigid concrete pavement or flexible protective mats
placed on bottom of streambed
footing apron -ANSWER-consists of protective layers of material surrounding the
fooding of the substructure unit
Degradation -ANSWER-general and progressive lowering of channel bed due to
erosion, usually over relatively long channels
aggradation -ANSWER-progressive buildup of the longitudinal profile of a channel
bed due to sediment deposition
headset migration -ANSWER-degradation of the channel that is associated with
abrupt changes in the streamed elevation and then migrates upstream (Niagra
falls)
WITH Recent Newest Verified And Well Analyzed Exam Questions
(Actual Exam 2026-2027) Correct Detailed & Verified ANSWERS (100%
Accurate Solutions) ALREADY GRADED A+||NEWEST VERSION Of The
Exam Guarantee Pass!!
What movement occurs when the horizontal earth pressure acting on the wall
exceeds the friction forces that hold the structure in place? -ANSWER-Lateral
What movement occurs due to unsymmetrical settlement, lateral movement, or
combo due to horizontal earth pressure?f -ANSWER-Rotational
Flood plain -ANSWER-overbank area outside the channel which carries flood flows
in excess of channel cpacity
thalweg -ANSWER-lowest elevation in stream bed
freeboard -ANSWER-vertical distance between the design flood water surface and
the lowest point of the superstructure
waterway area -ANSWER-The entire area beneath the bridge which is available to
pass flood flows.
number one cause of bridge failures -ANSWER-flooding
channel -ANSWER-well-defined and confines the streamflow during normal flow
conditions
,streambed -ANSWER-bottom of the channel
streambank -ANSWER-slopped sides of the channel
streamflow -ANSWER-water, suspended sediment, and any debris moving
through the channel
flood plain -ANSWER-overbank area outside of the channel, which is available to
pass flood flows
normal stage -ANSWER-streamflow stage prevailing during the greater part of the
year
river training structures -ANSWER-alter flow of the river
spurs -ANSWER-linear structures designed with properly sized and placed rocks
which protect the stream bank by reducing the flow velocity
guide banks -ANSWER-dikes which extend upstream from the approach
embankment at either or not sides of the bridge opening to direct flow through
the opening
Armoring countermeasures -ANSWER-resist erosive forces caused by the flow, but
tend not to alter the flow significantly
, riprap -ANSWER-layers or facing of properly sized and graded rock or broken
concrete placed or dumped to protect an abutment, pier, or embankment from
erosion
gabions -ANSWER-rectangular rock or cobble filled wire mesh baskets anchored
together to the surface they are protecting
slope protection -ANSWER-geotextiles, wire mesh, riprap, paving, intended to
protect the slope from erosion, slipping, or to withstand external hydraulic
pressure
channel lining -ANSWER-rigid concrete pavement or flexible protective mats
placed on bottom of streambed
footing apron -ANSWER-consists of protective layers of material surrounding the
fooding of the substructure unit
Degradation -ANSWER-general and progressive lowering of channel bed due to
erosion, usually over relatively long channels
aggradation -ANSWER-progressive buildup of the longitudinal profile of a channel
bed due to sediment deposition
headset migration -ANSWER-degradation of the channel that is associated with
abrupt changes in the streamed elevation and then migrates upstream (Niagra
falls)
