Assertion: median barrier | /r/ObjectUse | used on the descent
Facets:
value: in the mid-1940s
type: TEMPORAL
value: from the tehachapi mountains
type: LOCATION
value: in the central valley
type: LOCATION
Source sentences:
text: Although it is not clear exactly when or where the first concrete median barriers were used, concrete median barriers were used in the mid-1940s on US-99 on the descent from the Tehachapi Mountains in the central valley south of Bakersfield, California.