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The input variables required for this calculation is the following:
- Baffle Block Height Ratio — The ratio of the baffle block height to baffle block distance from the culvert.
- End Sill Height to Maximum Depth Ratio — ratio to determine the end sill height from the maximum depth.
- Basin Width — The channel width is recommended for the basin width.
The following figures show the design of a Contra Costa basin.
Variables from the figure
- D — Diameter of culvert
- y0 — Outlet depth
- y2 — Approximate maximum water surface depth
- y3 — Basin exit velocity
- V0 — Outlet velocity
- V2 — Exit velocity
- h1 — Height of small baffle
- h2 — Height of large baffle
- h3 — Height of end sill
- L2 — Length from culvert exit to large baffle
- L3 — Length from large baffle to end sill
- LB — Basin length
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | ★ Approved revision 13:07, 7 November 2007 | | 457 × 504 (28 KB) | Eshaw (talk | contribs) |
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