Wildlife Under Pass: CULVERT
Animals pass under an intersecting roadway through a culvert. A culvert is a conduit covered with embankment around the entire perimeter. It may or may not convey water. Small conduits for amphibians are sometimes called tunnels.
Box Culvert |
Culvert has four sides, including bottom. Sometimes square or rectangular corrugated metal pipe culverts without bottoms are called box culverts, but in this toolkit they are referred to as bottomless culverts. Box culverts may be arranged in a horizontal series of small culverts to form multiple chambers. |
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Precast concrete Cast-in-place concrete Wood |
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Culvert (Continuous) |
Culvert is continuous in circumference. The lower portion may or may not be buried. Sometimes simply called pipe. European badger culverts are sometimes called ecopipes. Slotted drain culverts are continuous except for a break |
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Corrugated metal pipe Metal plate Cast-in-place concrete Precast concrete Wood |
Bottomless Culvert |
Culvert is discontinuous in circumference with rounded or square top and natural surface bottom. Also called open-bottom culvert. |  |
Corrugated metal pipe Metal plate Precast concrete Cast-in-place concrete Wood |
Page Last Modified: July 21, 2015