McPherson Concrete Products, Inc., feed bunks, concrete storage systems, ready mix concrete, concrete pipe, precast concrete structures

They are recommended for applications where circular concrete pipe can not provide adequate flow capacity.

Precast Boxes are a superior substitute for cast-in- place box culverts, long span metal arches, short bridges and multibarrel circular pipe with minimum traffic delays.

Precast RCB Specifications
We can furnish some sizes with different member thicknesses.
Sizes: Spans 4' to 14' Rise 3' to 14'

Span/Rise	Top	Wall	Floor	Weight
Ft. X Ft.	Inches	Inches	Inches	Lbs./6'
4 X 3	7	6	6	7,900
4 X 4	7	6	6	8,800
5 X 3	8	6	6	9,300
5 X 4	8	6	6	10,100
5 X 5	8	6	6	11,000
6 X 3	7	7	7	10,800
6 X 4	7	6	6	10,600
6 X 5	7	6	6	11,500
6 X 6	8	6	6	12,800
7 X 3	8	6	6	11,200
7 X 4	8	8	8	14,700
7 X 5	8	6	6	12,900
7 X 6	8	6	6	13,800
7 X 7	8	6	6	14,600
8 X 3	8	6	6	12,200
8 X 4	8	6	6	13,100
8 X 5	8	6	6	13,900
8 X 6	8	6	6	14,800
8 X 7	8	6	6	15,600
8 X 8	8	6	6	16,500
9 X 3	9	7	7	15,200
9 X 4	9	7	7	16,200
9 X 5	9	7	7	17,200
9 X 6	9	7	7	17,500
9 X 8	9	7	7	20,200
10 X 3	10	7	7	17,200
10 X 4	10	7	7	18,100
10 X 5	10	7	7	19,100
10 X 6	10	7	7	20,100
10 X 7	10	8	8	23,100
10 X 8	10	7	9	23,700
10 X 10	10	7	7	24,100
11 X 8	11	8	8	26,400
12 X 3	11	8	9	23,000
12 X 4	11	8	9	24,100
12 X 6	11	8	9	26,400
12 X 7	11	8	9	27,500
12 X 8	12	8	12	32,400
12 X10	12	8	12	34,600
14 X14	12	8	12	42,500