FIS 3.1 – Riverine Hydrologic Analyses: Summary of Discharges Table

This table briefly summarizes the drainage areas and peak discharges at locations along the streams. The locations chosen for the table are generally at physical features shown on the maps.

Not all discharges used in the analyses are shown on the table. Typically, discharges for the 10-percent (10 year), 4-percent (25 year), 2-percent (50 year), 1-percent (100 year), and 0.2-percent (500 year) floods are shown in the tables.

Note: Peak discharges for 25-year flood events are shown on newer studies

Table 3: Summary of Discharges 

FLOODING SOURCE AND LOCATIONDRAINAGE AREA (sq miles)

PEAK DISCHARGES (cfs)

10-YEAR

PEAK DISCHARGES (cfs)

50-YEAR

PEAK DISCHARGES (cfs)

100-YEAR

PEAK DISCHARGES (cfs)

500-YEAR

COBB BROOK

At the confluence with the Rocky River

4.25609101,0801,550

ROCKY RIVER

Approximately 0.7 mile upstream of county boundary

23.72,0303,3103,9505,650

ROCKY RIVER

Just upstream of Wellington Road

13.51,1502,0002,6104,050
Select this link to access a text version of Table 3: Summary of Discharges.