Custom Search
|
|
|
||
 STRUCTURAL
Check for:
n Ascertain that invert elevation on nonsedimentation basin and pipe are
same:
n Catch-Basins and Curb Inlets:
debris
obstructions
cracked, broken or improperly seated grating
settlement
Top elevation adequate and compatable to prevent ponding
n Pipelines: Inspect pipe smaller than 48" diameter by using a light
between manholes. Crawl through pipe 48" diameter or larger. Tightness
of joints may be checked by blocking off a section between manholes for
24 hours to determine amount of ground water infiltration. Use a
watchman to open line in event of rain:
Misalignment
settlement
cracked
broken
open joints
sediment
debris
tree roots
erosion in concrete pipes
erosion and corrosion in corrugated metal pipes
n Headwalls:
cracked
broken
spalling
exposed reinforcing
settlement
undermining
improper condition of pipe joint at headwall
5-41
|
 
|
|
|
||
