the joints shall be coated with bituminous material as specified in AASHTO
M 190 or AASHTO M 243. Interior coating shall be protected against damage
from insertion or removal of struts or tie wires. Lifting lugs shall be
used to facilitate moving pipe without damage to exterior or interior
coatings. During transportation and installation, pipe or pipe arch and
coupling bands shall be handled with care to preclude damage to the
coating, paving or lining. Damaged coatings, pavings and linings shall be
repaired in accordance with the manufacturer's recommendations prior to
placing backfill. Pipe on which coating, paving or lining has been damaged
to such an extent that satisfactory field repairs cannot be made shall be
removed and replaced. Vertical elongation, where indicated, shall be
accomplished by factory elongation. Suitable markings or properly placed
lifting lugs shall be provided to ensure placement of factory elongated
pipe in a vertical plane.
3.3.5
Structural-Plate Steel
Structural plate shall be installed in accordance with ASTM A 807/A 807M.
Structural plate shall be assembled in accordance with instructions
furnished by the manufacturer. Instructions shall show the position of
each plate and the order of assembly. Bolts shall be tightened
progressively and uniformly, starting at one end of the structure after all
plates are in place. The operation shall be repeated to ensure that all
bolts are tightened to meet the torque requirements of 270 Newton meters
(200 foot-pounds) 200 foot-pounds plus or minus 68 Newton meters (50
foot-pounds). 50 foot-pounds. Any power wrenches used shall be checked by
the use of hand torque wrenches or long-handled socket or structural
wrenches for amount of torque produced. Power wrenches shall be checked
and adjusted frequently as needed, according to type or condition, to
ensure proper adjustment to supply the required torque.
3.3.6
Structural-Plate Aluminum
Structural plate shall be assembled in accordance with instructions
furnished by the manufacturer. Instructions shall show the position of
each plate and the order of assembly. Bolts shall be tightened
progressively and uniformly, starting at one end of the structure after all
plates are in place. The operation shall be repeated to ensure that all
bolts are torqued to a minimum of 136 Newton meters (100 foot-pounds) 100
foot-pounds on aluminum alloy bolts and a minimum of 203 Newton meters (150
foot-pounds) 150 foot-pounds on galvanized steel bolts. Any power wrenches
used shall be checked by the use of hand torque wrenches or long-handled
socket or structural wrenches for the amount of torque produced. Power
wrenches shall be checked and adjusted as frequently as needed, according
to type or condition, to ensure that they are in proper adjustment to
supply the required torque.
3.3.7
Multiple Culverts
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NOTE: Where encasement or other special conditions
are specified, minimum spacing as specified in this
paragraph should not apply.
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Where multiple lines of pipe are installed, adjacent sides of pipe shall be
at least half the nominal pipe diameter or 1 meter 3 feet apart, whichever
is less.
SECTION 02630
Page 32