German/French Strassensperre (Border Roadblocks) in Waldmohr
This set of intact mounts for a border roadbloc, or Strassensperre, are located near the Eichenscheiderhof farm complex. The iron mounting for the gate is still there. The helpful gentleman in the photo was amused by my excitement at the unexpected find - earlier in the day he explained the nearby Panzergrabens to me and gave me a map of the immediate area. 
Note the notch in the cement to support a beam in the gate. This design differs from the one in Lambsborn
Directions to the Waldmohr Strassensperre: Drive west from Landstuhl on B40, turning right onto L223 toward Waldmohr. Alternatively take A6 west and exit at Waldmohr, turning left on L223. A little over 1 km past the autobahn, watch for the turn to the right toward "Eichelscheiderhof". Go straight on the forest road about 1 km to a 4-way intersection, and continue ahead toward Eichelschedierhof.  The Strassensperre are visible just shortly after the road leaves the forest
Map to the Strassensperre