The intent of this report is to provide the reader with infor­ mation useful for establishing a sewer system inventory and record system in his or her city. The major topic of this report is the collection of data relevant to storm sewers. However, because of the natural progression of Muncie’s inventory, emphasis will be given to the collection of data for sanitary and combination sewers. The ...

The effective use of pervious concrete in environmental site design requires consistent design procedures integrating the structural and material properties of the pervious concrete pavement with hydrologic performance of the pervious concrete system. Design procedures to size pervious concrete storm-water systems are presented based on criteria for freeze-thaw protection and drawdown reliabili...

In this paper the development of a single set of design parameters of the sizing of the tidally affected detention pond system was analyzed and tested. The approach uses critical duration single storm event of specified return period, together with a single harmonic tide. The design flood level is then the aggregate of the levels obtained using the system model with the four phase lags between ...

Most stormwater numerical models assume that the entire watershed area is under the design storm and shall be considered as the tributary area to the design point. Care must be taken when simulating storm runoff generation from a large watershed because the rain storm may only cover a portion of the watershed. Since the area-averaged rainfall depth decays with respect to the storm-cover area, t...

Catastrophic flooding resulting from extreme meteorological events has occurred more frequently and drawn great attention in recent years in China. In coastal areas, extreme precipitation and storm tide are both inducing factors of flooding and therefore their joint probability would be critical to determine the flooding risk. The impact of storm tide or changing environment on flooding is igno...

It is widely recognised that flood risk needs to be taken into account when designing a storm sewer network. Flood risk is generally a combination of flood consequences and flood probabilities. This paper aims to explore the decision making in flood risk based storm sewer network design. A multiobjective optimization is proposed to find the Pareto front of optimal designs in terms of low constr...

In the field of solar radio, the high performance solar radio receiver which has high sensitivity, large dynamic range is necessary to observe the radio storm fine structure. The low noise floor solar radio receiver can meet the observation request. By the theory analysis of the radio storm receiver’s noise floor and combining with the characteristic of solar radio storm, the paper submits a me...

Specification of realistic environmental design conditions for marine structures is of fundamental importance to their reliability over time. Design conditions for extreme waves and storm severities are typically estimated by extreme value analysis of time series of measured or hindcast significant wave height, HS. This analysis is complicated by two effects. Firstly, HS exhibits temporal depen...

Storm water detention has been widely used for on-site runoff release control. The required storm water detention volumes are often determined by the pre-selected release rates for various design events. When a low release rate is selected, the basin stores more storm water volume than required and it results in an insufficient base flow for the downstream habitats. When a high release is selec...