TOLERANCES FOR CANAL LINING
Profile grade .............................................. 1
in.
Surface of invert ........................................ 1/4
in.
Surface of side slope .................................... 1/2
in.
Height of lining .................................. 0.005H + 1
in.
(3)
Cross-sectional dimensions
Thickness of lining cross section: 10 percent of specified thickness
provided average thickness is maintained as determined by daily batch volumes.
TOLERANCES FOR BRIDGES, EROSION-PROTECTION STRUCTURES,
AND SMALL HYDRAULIC STRUCTURES
(1)
Vertical alignment
Exposed surfaces .......................................... 3/4 in.
Concealed surfaces ...................................... 1-1/2 in.
(2)
Lateral alignment
Centerline alignment ........................................ 1 in.
(3)
Level alignment
Profile grade ............................................... 1 in.
Top of other concrete surfaces and horizontal grooves
Exposed .............................................. 3/4 in.
Concealed .......................................... 1-1/2 in.
Mainline pavements in longitudinal direction, the gap
below 10 ft unleveled straightedge resting
on highspots shall not exceed ............................. 1/8 in.
Mainline pavements in transverse direction, the gap
below a 10 ft unleveled straightedge
resting on highspots shall not exceed ..................... 1/4 in.
Ramps, sidewalks, and intersections, in any direction,
the gap below a 10 ft unleveled straightedge
resting on highspots shall not exceed ..................... 1/4 in.
(4)
Cross-sectional dimensions
Bridge slab thickness .................................... +1/4 in.
.................................... -1/8 in.
Members such as columns, beams, piers, walls, and others
(slabs--thickness only) .................................. +1/2 in.
.................................. -1/4 in.
Openings through concrete members ......................... 1/2 in.
(5)
Relative alignment
SECTION 03700
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