NHI SAFETY INSPECTION OF IN – SERVICE
BRIDGES FINAL EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
outlet pipes - ANSWERS-leads water away from the drain
downspout pipes - ANSWERS-directs deck drainage from
outlet pipe
cleanout plugs - ANSWERS-removable plug in piping system
that allows access for cleaning downspout pipes
drainage troughs - ANSWERS-located under open joints to
divert runoff away from components
,scupper - ANSWERS-inlet on a bridge that receives water,
with grate or perforated cover to keep out large debris
Deck Drains - ANSWERS-open holes or embedded tubes
similar to scuppers
downspout - ANSWERS-directs drainage to nearby storm
drain
weep holes - ANSWERS-small drainage holes found in
abutment stems and retaining walls which allow water to
drain from behind abutment
underdrains - ANSWERS-perforated pipes routed along back
face of the abutment and channeled to a nearby waterway
or storm water drainage system
aerial obstruction lighting - ANSWERS-used to alert aircraft
that a hazard exists below
navigation lighting - ANSWERS-used to safe control a
waterway
, warning signs - ANSWERS-alert drivers of existing or
potentially hazardous conditions
narrow underpass - ANSWERS-indicates where the roadway
narrow at an underpass or when there is a pier in the
middle of the roadway
traffic regulatory signs - ANSWERS-instruct drivers to do/
not to do something (speed, weight)
guide signs - ANSWERS-contain information to help the
driver reach their destination safely
barriers on bridges - ANSWERS-provide vehicular
containment, prevent rollover, minimize snagging and
spinout, provide smooth vehicular redirection within
accepted deceleration limits
railing - ANSWERS-contain and redirect errant vehicles on
the bridge
BRIDGES FINAL EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
outlet pipes - ANSWERS-leads water away from the drain
downspout pipes - ANSWERS-directs deck drainage from
outlet pipe
cleanout plugs - ANSWERS-removable plug in piping system
that allows access for cleaning downspout pipes
drainage troughs - ANSWERS-located under open joints to
divert runoff away from components
,scupper - ANSWERS-inlet on a bridge that receives water,
with grate or perforated cover to keep out large debris
Deck Drains - ANSWERS-open holes or embedded tubes
similar to scuppers
downspout - ANSWERS-directs drainage to nearby storm
drain
weep holes - ANSWERS-small drainage holes found in
abutment stems and retaining walls which allow water to
drain from behind abutment
underdrains - ANSWERS-perforated pipes routed along back
face of the abutment and channeled to a nearby waterway
or storm water drainage system
aerial obstruction lighting - ANSWERS-used to alert aircraft
that a hazard exists below
navigation lighting - ANSWERS-used to safe control a
waterway
, warning signs - ANSWERS-alert drivers of existing or
potentially hazardous conditions
narrow underpass - ANSWERS-indicates where the roadway
narrow at an underpass or when there is a pier in the
middle of the roadway
traffic regulatory signs - ANSWERS-instruct drivers to do/
not to do something (speed, weight)
guide signs - ANSWERS-contain information to help the
driver reach their destination safely
barriers on bridges - ANSWERS-provide vehicular
containment, prevent rollover, minimize snagging and
spinout, provide smooth vehicular redirection within
accepted deceleration limits
railing - ANSWERS-contain and redirect errant vehicles on
the bridge
