Laserfiche WebLink
Comprehensive Stormwater Management Plan <br />Northeast Lino Lakes Drainage Improvement Project <br />WSB Project No. 2929-79 Page 12 <br />Table 3-4. Clearwater Creek Model Outflow Summary [cfs] <br /> <br />CWC NODE 2-YR 24-HR 10-YR 24-HR 100-YR 24-HR 100-YR 10-DAY <br />J3MT_001 <br />RCWD 2014 201.8 337.8 563.9 446.0 <br />Revised Existing 217.3 350.0 566.0 443.6 <br />Difference [cfs] 15.5 12.2 2.2 -2.4 <br /> <br />Finally, the CWC model includes the existing flows entering Lino Lakes from Hugo under Elmcrest <br />Avenue. Table 3-5 summarizes the existing flows entering the CSMP study area. <br /> <br />Table 3-5. City of Hugo Existing Outflows [cfs] <br /> <br />CWC LINK 2-YR 24-HR 10-YR 24-HR 100-YR 24-HR 100-YR 10-DAY <br />CA55MTL_013 2.7 3.8 5.0 4.3 <br />CA55MTL_012 0.3 1.2 3.6 1.6 <br />CA55MTL_011 1.8 6.8 21.5 6.4 <br />CA55MTL_014 5.2 9.9 16.4 12.5 <br />CA55MTL_014B 0.0 0.8 5.9 2.8 <br />TOTAL HUGO 10.0 22.5 52.4 27.6 <br />3.4 Hardwood Creek <br />The HWC model was updated to split existing catchment SMT_002 into SMT_002 and SMT_002.5. The <br />soils data for subcatchment SMT_004A was updated to reflect the subcatchment hydrologic input data. <br />The HWC model was unstable when first run, the initial water surface elevation at the outlet node OUT <br />(El. 885.67) was higher than the next two upstream nodes’ starting water surface elevations, creating a <br />backflow from Peltier Lake into Hardwood Creek. The lower HWC model nodes were adjusted, per Table <br />3-6, to prevent water from backing up into the system at the start of the model runs. <br /> <br />Table 3-6. HWC Initial Water Surface Elevation Corrections <br /> <br />INFOSWMM <br />NODE <br />RCWD 2014 <br />INVERT ELEV <br />RCWD 2014 <br />INITIAL WSEL <br />ELEV. <br />REVISED INVERT <br />ELEV <br />REVISED INITIAL <br />WSEL ELEV. <br />OUT 860 885.67 882 885.67 <br />JMT_001 882.44 885.19 882.44 885.67 <br />JMT_002 881.66 885.18 881.66 885.67 <br />JMT_003 883.1 883.96 883.1 885.96