Figure 13-32 shows the location of a proposed road to connect Carol Place to Dwight Street. Design a culvert to convey the existing stream under the proposed road. Design discharge has been computed...

Figure 13-32 shows the location of a proposed road to connect Carol Place to Dwight Street. Design a culvert to convey the existing stream under the proposed road. Design discharge has been computed to be 340 cfs. Figures 13-33 and 13-34 show profiles of the proposed road and existing stream, respectively.


Notice the water surface profile shown in Figure 13-34. The profile shows a flow depth of 3.25 feet upstream of the proposed culvert and 3.0 feet downstream. The upstream depth is needed to evaluate the AHE, which is defined as being no higher than 0.2 foot above existing water level. Also, design riprap outlet protection, if needed.