Arroyo Alamar (40117) at the bridge over Cucapah Boulevard, Tijuana.

Table B-8. Flood discharges (m³ s^-1) calculated for Cottonwood Creek - Arroyo Alamar by rainfall-runoff modeling.

Location \Return period 2 5 10 25 50 100 200 500 1000

1. Upstream of Morena Dam 309 536 663 913 1069 1294 1413 1633 1799

2. Downstream of Morena Dam 34 49 82 129 162 207 230 277 314

3. Usptream of Barrett Dam 274 446 596 795 941 1120 1218 1387 1509

4. Downstream of Barrett Dam 36 70 84 140 180 220 321 501 635

5. Usptream of project reach 245 484 620 859 1058 1227 1330 1503 1623

6. Downstream of project reach 277 529 683 928 1135 1308 1417 1596 1722

7. Contribution of reach 40117 32 45 63 69 77 81 87 93 99

8. Adopted design discharge 280 530 680 930 1140 1310 1420 1600 1720

Location \Return period	2	5	10	25	50	100	200	500	1000
1. Upstream of Morena Dam	309	536	663	913	1069	1294	1413	1633	1799
2. Downstream of Morena Dam	34	49	82	129	162	207	230	277	314
3. Usptream of Barrett Dam	274	446	596	795	941	1120	1218	1387	1509
4. Downstream of Barrett Dam	36	70	84	140	180	220	321	501	635
5. Usptream of project reach	245	484	620	859	1058	1227	1330	1503	1623
6. Downstream of project reach	277	529	683	928	1135	1308	1417	1596	1722
7. Contribution of reach 40117	32	45	63	69	77	81	87	93	99
8. Adopted design discharge	280	530	680	930	1140	1310	1420	1600	1720