A dataset containing total inundated floodplain area in acres as a function of flow in cubic feet per second.
mill_creek_floodplain
dataframe with 30 rows and 5 variables:
integer flow value in cubic feet per second
fall run floodplain acreage
spring run floodplain acreage
steelhead floodplain acreage
name of watershed
No site-specific hydraulic modeling was available for this watershed. A flow to floodplain area relationship was generated for this watershed by scaling the flow to floodplain area relationship for Deer Creek based onhydrologic and geomorphic analyses. Flows and corresponding floodplain areas per unit length were calculated for this watershed as 0.98 percent of DeerCreek values based on the ratio of mean flow from December to June between this watershed and Deer Creek. Of the entire mapped 21.10 mile rearing extent in this watershed, 7.50 miles were classified as low gradient and 13.60 miles were classified as high gradient based on a geomorphic analysis. A scaling factor of 0.1 was applied to the area per unit length for the high gradient extent. No scaling factor was applied to the low gradient extent.
No site-specific hydraulic modeling was available for this watershed. A flow to floodplain area relationship was generated for this watershed by scaling the flow to floodplain area relationship for Deer Creek based onhydrologic and geomorphic analyses. Flows and corresponding floodplain areas per unit length were calculated for this watershed as 0.98 percent of DeerCreek values based on the ratio of mean flow from December to June between this watershed and Deer Creek. Of the entire mapped 53.49 mile rearing extent in this watershed, 7.50 miles were classified as low gradient and 45.99 miles were classified as high gradient based on a geomorphic analysis. A scaling factor of 0.1 was applied to the area per unit length for the high gradient extent. No scaling factor was applied to the low gradient extent.
mill_creek_floodplain#> flow_cfs FR_floodplain_acres SR_floodplain_acres ST_floodplain_acres #> 1 68.72368 0.000000 0.000000 0.000000 #> 2 166.90036 0.000000 0.000000 0.000000 #> 3 265.07705 0.000000 0.000000 0.000000 #> 4 363.25373 0.000000 0.000000 0.000000 #> 5 461.43042 0.000000 0.000000 0.000000 #> 6 559.60710 0.000000 0.000000 0.000000 #> 7 560.58887 0.000000 0.000000 0.000000 #> 8 657.78379 0.000000 0.000000 0.000000 #> 9 755.96047 0.000000 0.000000 0.000000 #> 10 854.13716 1.820055 2.485458 2.485458 #> 11 952.31384 5.345091 7.299229 7.299229 #> 12 1050.49053 8.301732 11.336802 11.336802 #> 13 1148.66721 11.481577 15.679183 15.679183 #> 14 1246.84390 14.293089 19.518568 19.518568 #> 15 1345.02058 17.290974 23.612466 23.612466 #> 16 1443.19726 20.121096 27.477265 27.477265 #> 17 1541.37395 22.858879 31.215968 31.215968 #> 18 1639.55063 25.208988 34.425264 34.425264 #> 19 1737.72732 27.458523 37.497218 37.497218 #> 20 1835.90400 29.574543 40.386844 40.386844 #> 21 1934.08069 31.442516 42.937739 42.937739 #> 22 2032.25737 33.409875 45.624353 45.624353 #> 23 2130.43406 34.942727 47.717608 47.717608 #> 24 2228.61074 36.485309 49.824150 49.824150 #> 25 2326.78743 37.821955 51.649468 51.649468 #> 26 2424.96411 39.284781 53.647095 53.647095 #> 27 2523.14080 40.698348 55.577455 55.577455 #> 28 2621.31748 42.080688 57.465171 57.465171 #> 29 2719.49417 43.399946 59.266744 59.266744 #> 30 2817.67085 44.459883 60.714188 60.714188 #> watershed #> 1 Mill Creek #> 2 Mill Creek #> 3 Mill Creek #> 4 Mill Creek #> 5 Mill Creek #> 6 Mill Creek #> 7 Mill Creek #> 8 Mill Creek #> 9 Mill Creek #> 10 Mill Creek #> 11 Mill Creek #> 12 Mill Creek #> 13 Mill Creek #> 14 Mill Creek #> 15 Mill Creek #> 16 Mill Creek #> 17 Mill Creek #> 18 Mill Creek #> 19 Mill Creek #> 20 Mill Creek #> 21 Mill Creek #> 22 Mill Creek #> 23 Mill Creek #> 24 Mill Creek #> 25 Mill Creek #> 26 Mill Creek #> 27 Mill Creek #> 28 Mill Creek #> 29 Mill Creek #> 30 Mill Creek