None planned.
Data Source: Thomas R. Payne & Associates 1995 (pg C-1) and Thomas R. Payne & Associates 1998 (pg C-1)
The instream spawning and rearing habitat for Fall Run Chinook Salmon, Spring Run Chinook Salmon, and Steelhead in Battle Creek are based on data from Thomas R. Payne & Associates’ 1995 instream flow evaluations. The Winter Run in Battle Creek are based on the 1998 instream flow evaluations. The flow evaluations were conducted for the California Department of Fish and Wildlife. They uncovered relationships between flow and both suitable spawning habitat and suitable rearing habitat from seven study reaches in Battle Creek. For both species, the weighted usable area (WUA) data were consolidated from all mainstem reaches.
The instream spawning and rearing habitat data described above for Fall Run Chinook Salmon (FR), Spring Run Chinook Salmon (SR), and Steelhead (ST) are combined for use in the Decision Support Model (DSM) in the following format. Units are in square feet per 1000 feet.
Fall Run
flow_cfs | FR_spawn_wua | FR_fry_wua | FR_juv_wua | watershed |
---|---|---|---|---|
8 | 130.33 | 15577.42 | 4951.72 | Battle Creek |
10 | 200.10 | 15410.91 | 5858.00 | Battle Creek |
12 | 275.77 | 15181.16 | 6704.73 | Battle Creek |
14 | 358.81 | 14928.81 | 7488.45 | Battle Creek |
16 | 435.23 | 14661.05 | 8211.50 | Battle Creek |
18 | 513.79 | 14371.35 | 8879.50 | Battle Creek |
… with 30 more rows
Spring Run
flow_cfs | SR_spawn_wua | SR_fry_wua | SR_juv_wua | watershed |
---|---|---|---|---|
8 | 614.98 | 15577.42 | 4951.72 | Battle Creek |
10 | 761.60 | 15410.91 | 5858.00 | Battle Creek |
12 | 897.95 | 15181.16 | 6704.73 | Battle Creek |
14 | 1034.54 | 14928.81 | 7488.45 | Battle Creek |
16 | 1177.36 | 14661.05 | 8211.50 | Battle Creek |
18 | 1312.89 | 14371.35 | 8879.50 | Battle Creek |
… with 30 more rows
Steelhead
flow_cfs | ST_spawn_wua | ST_fry_wua | ST_juv_wua | ST_adult_wua | watershed |
---|---|---|---|---|---|
8 | 266.30 | 4612.27 | 13056.70 | 9122.98 | Battle Creek |
10 | 364.83 | 4289.54 | 13667.70 | 9728.00 | Battle Creek |
12 | 458.80 | 4035.90 | 14128.02 | 10253.11 | Battle Creek |
14 | 565.26 | 3809.16 | 14464.77 | 10711.28 | Battle Creek |
16 | 680.82 | 3588.96 | 14722.92 | 11113.88 | Battle Creek |
18 | 778.70 | 3409.46 | 14899.43 | 11459.39 | Battle Creek |
… with 30 more rows
Winter Run
flow_cfs | WR_spawn_wua | WR_fry_wua | WR_juv_wua | watershed |
---|---|---|---|---|
8 | 567.2981 | 11857.47 | 4126.819 | Battle Creek |
10 | 707.4497 | 11679.59 | 4923.229 | Battle Creek |
12 | 850.7454 | 11432.35 | 5712.370 | Battle Creek |
14 | 969.3630 | 11216.95 | 6354.508 | Battle Creek |
16 | 1066.4405 | 10985.86 | 6944.252 | Battle Creek |
18 | 1153.4530 | 10734.30 | 7473.724 | Battle Creek |
… with 30 more rows
The following plot shows the spawning WUA in square feet per thousand feet for Fall Run Chinook Salmon, Steelhead, and Spring Run Chinook Salmon. These area per length rates are multiplied by the total spawning reach length mapped by the Science Integration Team (SIT) to estimate available habitat.
The following plot shows the weighted usable rearing area in square feet per thousand feet for Fall Run Chinook Salmon and Steelhead fry and juvenile. These rates are multiplied by the total rearing reach length mapped by the SIT to estimate available habitat.
Data Source: Scaled from a Deer Creek flow to floodplain area relationship generated with a 2D HEC-RAS hydraulic model. See Deer Creek HSI modeling documentation for more details.
There was no watershed specific hydraulic modeling available for Battle Creek. A flow to inundated floodplain area relationship was generated for Battle Creek by scaling the flow to inundated floodplain area relationship for Deer Creek. This scaling used the ratio of mean flow from December to June between the modeled and unmodeled watershed. Flows and corresponding inundated floodplain areas per unit length were calculated for Battle Creek as 147% of Deer Creek. Of the entire mapped 5.9 miles rearing extent in Battle Creek, 5.9 miles were classified as low gradient and 0 miles were classified as high gradient based on a geomorphic analysis of long profile slopes and valley widths. The area per unit length was scaled by a factor of 0.1 for the high gradient extent. There was no scaling factor applied to the low gradient extent.
There was no watershed specific hydraulic modeling available for Battle Creek. A flow to inundated floodplain area relationship was generated for Battle Creek by scaling the flow to inundated floodplain area relationship for Deer Creek. This scaling used the ratio of mean flow from December to June between the modeled and unmodeled watershed. Flows and corresponding inundated floodplain areas per unit length were calculated for Battle Creek as 147% of Deer Creek. Of the entire mapped 16.6 miles rearing extent in Battle Creek, 5.9 miles were classified as low gradient and 10.7 miles were classified as high gradient based on a geomorphic analysis of long profile slopes and valley widths. The area per unit length was scaled by a factor of 0.1 for the high gradient extent. There was no scaling factor applied to the low gradient extent.
There was no watershed specific hydraulic modeling available for Battle Creek. A flow to inundated floodplain area relationship was generated for Battle Creek by scaling the flow to inundated floodplain area relationship for Deer Creek. This scaling used the ratio of mean flow from December to June between the modeled and unmodeled watershed. Flows and corresponding inundated floodplain areas per unit length were calculated for Battle Creek as 147% of Deer Creek. Of the entire mapped 18.5 miles rearing extent in Battle Creek, 5.9 miles were classified as low gradient and 12.6 miles were classified as high gradient based on a geomorphic analysis of long profile slopes and valley widths. The area per unit length was scaled by a factor of 0.1 for the high gradient extent. There was no scaling factor applied to the low gradient extent.
There was no watershed specific hydraulic modeling available for Battle Creek. A flow to inundated floodplain area relationship was generated for Battle Creek by scaling the flow to inundated floodplain area relationship for Deer Creek. This scaling used the ratio of mean flow from December to June between the modeled and unmodeled watershed. Flows and corresponding inundated floodplain areas per unit length were calculated for Battle Creek as 147% of Deer Creek. Of the entire mapped 24.4 miles rearing extent in Battle Creek, 5.9 miles were classified as low gradient and 18.5 miles were classified as high gradient based on a geomorphic analysis of long profile slopes and valley widths. The area per unit length was scaled by a factor of 0.1 for the high gradient extent. There was no scaling factor applied to the low gradient extent.
The areas represent total inundated area in acres.
flow_cfs | FR_floodplain_acres | SR_floodplain_acres | WR_floodplain_acres | ST_floodplain_acres | LFR_floodplain_acres | watershed |
---|---|---|---|---|---|---|
1325 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | Battle Creek |
1473 | 4.22 | 7.18 | 5.13 | 7.18 | 5.00 | Battle Creek |
4418 | 60.38 | 102.72 | 73.37 | 102.72 | 71.44 | Battle Creek |
7363 | 103.65 | 176.32 | 125.94 | 176.32 | 122.62 | Battle Creek |
8836 | 118.93 | 202.32 | 144.51 | 202.32 | 140.70 | Battle Creek |
… with 8 more rows