"metavolcanic rock with occasional fracured zones"
Spread footings are to be embedded in the rock. I haven't seen this before, how are excavations in rock done?
Is it practicable to bore holes in rock, for end bearing caissons?
Thanks.
The water slow moving and is 4 ft deep and the soffit is 20 ft up from the stream bed at the center pier. The proposed bridge is 220 ft long and 2 spans.
1) When it goes to bid, how much will the costs of erecting the falsework play in the cost? It seems like at water crossings, that this...
1) For the old-time hydraulic calc's: was it 1 foot neglected on each side of the pier to account for debris buildup, was it 18 inches??
2) What is the reason for greasing the top of an elastomeric bearing and installing a smooth plate above it: It's not a sliding bearing it's supposed to...
