Page 219 - National Electrical Price Guide

04-10-18
100-5
UNDERGROUND CONDUIT
WITH CONCRETE ENCASEMENT

CUBIC YARDS OF CONCRETE FOR 100 FEET OF TRENCH

A B C D E F G H J

Table of approximate cubic yards of concrete for 100 feet of
trench with 3 inches of concrete on sides, top and bottom.

Duct Formation A B C D E F G H J
No. of Ducts 2 3 4 6 8 9 12 16 20

1" Separation of Conduit

2 2.4 3.1 3.3 4.1 4.9 5.1 6.1 7.3 8.5
Size 3 3.0 3.9 4.2 5.3 6.4 6.7 8.1 9.8 11.3
of 3-1/2 3.3 4.3 4.6 5.9 7.2 7.5 9.1 11.0 12.9
Conduit 4 3.6 4.7 5.0 6.5 7.9 8.3 10.1 12.2 14.5
4-1/2 3.9 5.1 5.5 7.1 8.7 9.2 11.3 13.6 16.0
5 4.2 5.5 6.2 7.8 9.6 10.0 12.2 15.0 17.8

1-1/2" Separation of Conduit
2 2.6 3.3 3.6 4.6 5.7 5.9 7.3 8.9 10.5
Size 3 3.2 4.1 4.5 5.9 7.3 7.6 9.4 11.8 13.7
of 3-1/2 3.5 4.5 5.0 6.5 8.1 8.6 10.5 13.1 15.5
Conduit 4 3.7 5.0 5.4 7.2 8.9 9.5 11.7 14.4 17.2
4-1/2 4.0 5.3 6.2 7.9 9.8 10.3 12.9 16.2 19.2
5 4.4 5.8 6.5 8.6 10.7 11.3 14.1 17.5 21.0

2" Separation of Conduit
2 2.7 3.5 3.9 5.2 6.4 6.8 8.5 10.5 12.5
Size 3 3.3 4.4 4.9 6.5 8.1 8.7 10.8 13.5 16.2
of 3-1/2 3.6 4.8 5.4 7.2 9.2 9.7 12.1 15.1 18.2
Conduit 4 3.8 5.2 5.9 7.9 9.9 10.6 13.3 16.7 20.1
4-1/2 4.2 5.6 6.4 8.7 10.9 12.6 14.6 18.3 22.0
5 4.5 6.1 7.0 9.4 11.8 12.7 16.0 20.1 24.2

3" Separation of Conduit
2 2.9 4.4 4.6 6.4 8.1 8.9 11.1 14.1 17.2
Size 3 3.5 4.9 5.7 7.8 10.0 10.9 13.9 17.8 21.6
of 3-1/2 3.8 5.4 6.3 8.7 11.1 12.0 15.4 19.7 24.0
Conduit 4 4.2 5.8 6.8 9.5 12.1 13.1 16.8 21.6 26.3
4-1/2 4.5 6.2 7.4 10.3 13.2 14.2 18.3 23.5 28.7
5 4.8 6.7 7.9 11.1 14.2 15.5 19.9 25.5 32.5

NPG
8-5 COPYRIGHT © 1996-2018 by ELECTRICAL RESOURCES, INC.