3. Multiple Pages
If a circuit is long enough it may require more than two pages. Each page begins with a BS on a starting elevation and ends with an FS establishing an ending elevation. The ending elevation on the first page is the starting elevation on the second page, and so on as necessary.
Each page has its own page check which should be done immediately upon page completion. Since the end elevation on one page is the start elevation on the next, a math error on one page affects all elevations on subsequent pages.
For example, the notes for the circuit shown in Figure C-16 covers two pages.
 |
| Figure C-16 Larger Level Circuit |
The first page ends with a FS on R establishing its elevation:
| First page | |||||
| Point | BS(+) | EI | FS(-) | Elev | |
| BM Red | 9.73 | 893.56 | |||
| 903.29 | |||||
| L | 10.39 | 2.88 | 900.41 | ||
| 910.80 | |||||
| TP1 | 6.02 | 8.26 | 902.54 | ||
| 908.56 | |||||
| M | 11.35 | 1.63 | 906.93 | ||
| 918.28 | |||||
| Q | 3.23 | 1.88 | 916.40 | ||
| 919.63 | |||||
| R | 5.66 | 913.97 | |||
| ΣBS = | 40.72 | ΣFS = | 20.31 | ||
The page check is:
| Start elev: | 893.56 | |
| ΣBS = | +40.72 | |
| 934.28 | ||
| ΣFS = | -20.31 | |
| End elev | 913.97 | check |
The next page starts at R with its elevation from the previous page. The circuit continues beginning with a BS on R to carry the elevation forward:
| Second page | |||||
| Point | BS(+) | EI | FS(-) | Elev | |
| R | 1.09 | 913.97 | |||
| 915.06 | |||||
| T | 5.96 | 7.69 | 907.37 | ||
| 913.33 | |||||
| TP2 | 3.87 | 9.03 | 904.30 | ||
| 908.17 | |||||
| V | 1.03 | 10.81 | 897.36 | ||
| 898.39 | |||||
| BM Red | 4.78 | 893.61 | |||
| ΣBS = | 11.95 | ΣFS = | 32.31 | ||
The page check is:
| Start elev: | 913.97 | |
| ΣBS = | +11.95 | |
| 925.92 | ||
| ΣFS = | -32.31 | |
| End elev | 893.61 | check |
Note that if the first page had a one foot math error that wasn’t caught with a page check, then all the elevations on the second page would be off one foot (they could still be correct relative to each other). Further, since all its elevations are off the same amount, a page check of the second page would still check out OK. That’s because the math error occurred before the second page. Page checks should be done in the same order the pages are compiled.
Always: perform the page check immediately upon page completion.