RickSewerPipe
Geotechnical
Hello Eng-Tips.com community!
I need to cross-under a four lane state highway to get to the township's gravity sewer main on the other side.
In lieu of pneumatic tunnel boring (expensive) the ideal point of cross-under is at an existing state owned box culvert with a low flow stream running thru it (see pic).
Its a 5ft high x 12ft wide box culvert with a 100 year flood design size.
Is it ever permitted to run a sanitary sewer pipe (2" HDPE forced lateral)thru a box culvert of this type? The 2" pipe would be attached to the ceiling of the culvert.
I need to cross-under a four lane state highway to get to the township's gravity sewer main on the other side.
In lieu of pneumatic tunnel boring (expensive) the ideal point of cross-under is at an existing state owned box culvert with a low flow stream running thru it (see pic).
Its a 5ft high x 12ft wide box culvert with a 100 year flood design size.
Is it ever permitted to run a sanitary sewer pipe (2" HDPE forced lateral)thru a box culvert of this type? The 2" pipe would be attached to the ceiling of the culvert.