1. Curb and Gutter Under Construction Completed

2. Curb and Gutter Formwork

3. Curb and Gutter Machine

4. Gutter Flow 𝑄= 𝐶 𝑓 𝑛 𝑆 𝑥 5 3 𝑇 8 3 𝑆 𝑜 1 2 T d Sx 1
𝑄= 𝐶 𝑓 𝑛 𝑆 𝑥 𝑇 𝑆 𝑜 T d Sx 1
Q = flow in gutter (cfs)
Cf = coefficient (0.56 for US units, for SI units
So = longitudinal slope
T = spread (ft)
Sx = transverse slope
Ref: SCMD p. 372

5. City of Austin Drainage Criteria for Minimum Clear Width
City of Austin, Drainage Criteria Manual, Section 3

6. Flow into a Curb Inlet LT 𝐿 𝑇 = 𝐶 𝑓 𝑄 0.42 𝑆 𝑜 0.3 1 𝑛 𝑆 𝑥 0.6
𝐿 𝑇 = 𝐶 𝑓 𝑄 0.42 𝑆 𝑜 𝑛 𝑆 𝑥
LT = required length to intercept all flow (ft)
Q = flow in gutter (cfs)
Cf = coefficient (0.60 for US units, for SI units)
So = longitudinal slope
T = spread (ft)
Sx = transverse slope
𝐸=1− 1− 𝐿 𝐿 𝑇
E = efficiency (proportion of flow captured
L = actual length (ft) (for L < LT)
Ref: SCMD p. 393

7. City of Austin Criteria for Inlets

8. Storm Drain Manhole

9. Storm Sewer Flow