TOLERANCES FOR CANAL LINING
(1) Lateral alignment
Alignment of tangents ...................................... 50 mm
Alignment of curves ....................................... 100 mm
Width of section
at any height .................................. 0.0025W + 25 mm
(2)
Level alignment
Profile grade .............................................. 25
mm
Surface of invert ........................................... 6
mm
Surface of side slope ...................................... 13
mm
Height of lining .................................. 0.005H + 25
mm
(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 ........................................... 19 mm
Concealed surfaces ......................................... 40 mm
(2)
Lateral alignment
Centerline alignment ....................................... 25 mm
(3)
Level alignment
Profile grade .............................................. 25 mm
Top of other concrete surfaces and horizontal grooves
Exposed ............................................... 19 mm
Concealed ............................................. 40 mm
Mainline pavements in longitudinal direction, the gap
below 3 m unleveled straightedge resting
on highspots shall not exceed ............................... 3 mm
Mainline pavements in transverse direction, the gap
below a 3 m unleveled straightedge
resting on highspots shall not exceed ....................... 6 mm
Ramps, sidewalks, and intersections, in any direction,
the gap below a 3 m unleveled straightedge
resting on highspots shall not exceed ....................... 6 mm
(4)
Cross-sectional dimensions
Bridge slab thickness ...................................... +6 mm
SECTION 03700
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