| Abstract: | This chapter describes procedures for measuring peak discharges using open-channel width contractions. Field and office procedures limited to this method are described. The discharge equation based on the continuity and energy equations between an approach cross section and the contracted section under a bridge or contraction is given. Contractions are classified into four geometric types. Discharge coefficients and computation procedures are given with a complete facsimile example of computation of a contracted-opening measurement. Additional procedures are given for multiple-opening contractions. |
| Genre: | USGS Numbered Series |
| ProdID: | 4703 |
| Citation Author: | Matthai, Howard Frederick |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | viii, 44 p. :ill. ;26 cm. Reprinted in 1984. |
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| Citation Publisher: | U.S. Govt. Print. Off., |
| Citation Series: | Techniques of Water-Resource Investigation |
| Citation Series Code: | TWRI |
| Citation Series Number: | 03-A4 |
| Citation Search Results Text: | Measurement of peak discharge at width contractions by indirect methods; 1967; TWRI; 03-A4; Matthai, Howard Frederick |
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| Citation Year: | 1967 |
| Type: | citation/reference |
| Text: | Measurement of peak discharge at width contractions by indirect methods; 1967; TWRI; 03-A4; Matthai, Howard Frederick |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/twri/twri3-a4/ |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Govt. Print. Off., |
