1000 Hydraulics Chapter - Ministry of Transportation
1000 Hydraulics Chapter - Ministry of Transportation
1000 Hydraulics Chapter - Ministry of Transportation
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BC MoT<br />
SUPPLEMENT TO TAC GEOMETRIC DESIGN GUIDE<br />
MoT Section 1050 TAC Section Not Applicable<br />
Table 1050.M Concrete Pipe Trench Installation<br />
Design Data:<br />
1. Class “B” bedding.<br />
2. Width <strong>of</strong> trench at pipe crown = transition width.<br />
3. Backfill = sand and gravel at 1.92 tonnes/m 3<br />
4. Pipe strength - ASTM - C 14 and C 76.<br />
5. Live Load CS-600<br />
6. Safety Factor = 1.5<br />
COVER IN METRES<br />
Diameter<br />
in<br />
Non-reinf.<br />
C 14 - 3<br />
Reinforced<br />
C 76 - 111<br />
Reinforced<br />
C 76 - IV<br />
Reinforced<br />
C 76 - V<br />
Diameter<br />
in<br />
mm Max. Min. Max. Min. Max. Min. Max. Min. mm<br />
200 6.4 0.3 - - - - - - 200<br />
250 5.2 0.4 - - - - - - 250<br />
300 4.2 0.4 - - 4.8 0.4 6.1 0.3 300<br />
375 3.8 0.4 - - 5.0 0.4 6.2 0.3 375<br />
450 3.7 0.4 - - 5.1 0.4 6.3 0.3 450<br />
525 3.7 0.4 3.4 0.5 5.1 0.3 6.3 0.2 525<br />
600 3.8 0.4 3.5 0.5 5.2 0.3 6.4 0.2 600<br />
675 3.6 0.4 3.5 0.5 5.2 0.2 6.5 0.2 675<br />
750 3.4 0.4 3.5 0.4 5.3 0.2 6.6 0.2 750<br />
900 3.0 0.4 3.6 0.3 5.3 0.2 6.6 0.2 900<br />
1050 - - 3.6 0.2 5.4 0.2 6.7 0.2 1050<br />
1200 - - 3.6 0.2 5.4 0.2 6.7 0.2 1200<br />
1350 - - 3.7 0.2 5.4 0.2 6.7 0.2 1350<br />
1500 3.7 0.2 5.5 0.2 6.7 0.2 1500<br />
1650 3.5 0.2 5.5 0.2 6.7 0.2 1650<br />
1800 3.8 0.2 5.5 0.2 6.7 0.2 1800<br />
June, 2007 Page 1050-15
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