Culvert End Treatments
The type of end treatment used on a culvert depends on many interrelated and sometimes conflicting considerations. The PEO must […]
Various types of drainage facilities are required to protect the highway against surface and subsurface water. Drainage facilities must be designed to convey the water across, along, or away from the highway in the most economical, efficient, and safe manner without damaging the highway or adjacent property. The purpose of this manual is to provide detailed information on the subjects of hydrologic and hydraulic analysis related to highway design. This manual should be used in conjunction with the Washington State Department of Transportation (WSDOT) Highway Runoff Manual and the WSDOT Design Manual, specifically Section 1210.
The type of end treatment used on a culvert depends on many interrelated and sometimes conflicting considerations. The PEO must […]
Once familiar with culvert design theory as presented in this chapter, the PEO shall use one of several commercially available
Approval from RHE is required when using HDS-5 for culvert calculation forms, charts, and nomographs if using hand calculations for
A culvert, because of its hydraulic characteristics, generally increases the velocity of flow over that in a natural channel. High
The depth of water that exists in the channel downstream of a culvert is referred to as the tailwater and
This section presents hydraulic design criteria for allowable headwater for circular and box culverts and pipe arches and for bottomless
Culvert Design Considerations This section presents culvert design considerations. 3-3.1.1 Flow The first step in designing a culvert is to
A complete theoretical analysis of the hydraulics of a particular culvert installation is time-consuming and complex. Flow conditions vary from
This section describes culvert design documentation, including hydraulic reports, required field data, and engineering analysis. 3-2.1 Hydraulic Reports The PEO