INSTALLATION GUIDE
HIGHWAY SYSTEM FLOW CAPACITIES
A B
A B
A B
A B
A B
A B
A B
A B
A B
A B
A B
A B
A B
A B
A B
A B
Shallow base unit
Standard base unit
Deep base unit
Crossing base unit
To inlet invert inside top unit (B)
To inlet invert inside top unit (B)
To inlet invert inside top unit (B)
To underside of crossing plate (B)
To bottom of joint line (A)
To bottom of joint line (A)
To bottom of joint line (A)
To bottom of joint line (A)
vel. m/sec
dis. l/sec
vel. m/sec
dis. l/sec
vel. m/sec
dis. l/sec
vel. m/sec
dis. l/sec
vel. m/sec
dis. l/sec
vel. m/sec
dis. l/sec
vel. m/sec
dis. l/sec
vel. m/sec
dis. l/sec
Gradient
1:50 (2.00%)
1.9 39 2.3 97 2.6 171 2.7 236 2.8 244 2.9 310 2.4 115 2.6 178
1:100 (1.00%)
1.3 28 1.6 69 1.9 120 1.9 166 2.0 172 2.0 219 1.7 81 1.8 126
1:200 (0.50%)
0.9 20 1.1 48 1.3 85 1.4 117 1.4 121 1.4 154 1.2 57 1.3 89
1:300 (0.33%)
0.8 16 0.9 39 1.1 69 1.1 95 1.1 99 1.2 126 1.0 46 1.1 72
1:400 (0.25%)
0.6 14 0.8 34 0.9 60 1.0 83 1.0 85 1.0 109 0.8 40 0.9 62
1:500 (0.20%) 0.6 12 0.7 30 0.8 53 0.9 74 0.9 76 0.9 97 0.8 36 0.8 56 1:1000 (0.10%) 0.4 9 0.5 21 0.6 37 0.6 52 0.6 54 0.6 68 0.5 25 0.6 39
Key: vel. = velocity, dis. = discharge
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TECHNICAL INFORMATION: charcon.technical@aggregate.com
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