Scientific Investigations Report 2006–5323
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5323
Table 5. Streamflows used for hydraulic model, Duck and Jordan Creeks, Juneau, Alaska.
[Streams and locations are shown in figure 6. Previous flood insurance study: from Federal Emergency Management Agency (1990); equivalent locations assigned. Abbreviations: USGS, U.S. Geological Survey; ft, foot; ft3/s, cubic foot per second; –, not appropriate]
| Stream and location | River station (ft) |
Current study | Previous flood insurance study | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Peak streamflow, for given recurrence interval or date (ft3/s) |
Peak streamflow, for givene recurrence interval (ft3/s) |
||||||||||
| 10- year |
50- year |
100- year |
500- year |
11-21-05 | 10- year |
50- year |
100- year |
500- year |
|||
| Duck Creek | |||||||||||
| Duck Creek upstream from Taku Boulevard | 18,193 | 26.8 | 41.6 | 48.4 | 66.1 | 15.4 | – | – | – | – | |
| Duck Creek upstream from Mendenhall Boulevard | 16,755 | 34.5 | 53.5 | 62.3 | 85.2 | 19.9 | – | – | – | – | |
| Duck Creek upstream from Duran Street | 14,998 | 40.3 | 62.6 | 72.8 | 99.6 | 23.2 | – | – | – | – | |
| Duck Creek upstream from McGinnis Drive | 13,575 | 45.2 | 70.3 | 81.8 | 111 | 26.1 | – | – | – | – | |
| Duck Creek upstream from Stephan Richards Drive | 12,542 | 48.4 | 75.2 | 87.5 | 120 | 27.9 | – | – | – | – | |
| Duck Creek upstream from Kodzoff Acres | 10,398 | 61.4 | 95.3 | 111 | 152 | 35.4 | 51 | 62 | 67 | 78 | |
| Duck Creek downstream from Nancy Street at USGS gaging station (15053200) | 8,858 | 70.9 | 110 | 128 | 175 | 40.9 | – | – | – | – | |
| Duck Creek upstream from Mall Access Road | 6,905 | 76.4 | 119 | 138 | 189 | 44.1 | 74 | 116 | 180 | 212 | |
| Inter-basin transfer from Duck Creek to Jordan Creek | 15,606 26,737 |
– | 6.0 | 21.7 | 62.3 | – | – | – | – | – | |
| Duck Creek upstream from Cessna Street | 2,892 | 90.8 | 141 | 164 | 225 | 52.4 | 140 | 209 | 254 | 293 | |
| Tributaries | |||||||||||
| Unnamed Tributary to Duck Creek downstream from Valley Boulevard | 1,589 | 5.0 | 7.7 | 9.0 | 12.3 | 2.9 | – | – | – | – | |
| Unnamed Tributary to Duck Creek downstream from Nancy Street | – | – | – | – | – | 65 | 90 | 113 | 135 | ||
| Jordan Creek | |||||||||||
| Jordan Creek upstream of pedestrian bridge upstream from Egan Drive | 8,037 | 202 | 329 | 389 | 530 | 138 | – | – | – | – | |
| Inter-basin transfer from Jordan Creek upstream from Egan Drive to southeast | 7,888 | – | 61.9 | 106 | 218 | – | – | – | – | – | |
| Jordan Creek upstream from Egan Drive | 7,815 | 202 | 267 | 282 | 315 | 138 | 355 | 395 | 444 | 474 | |
1On Duck Creek.
2On Jordan Creek.
U.S.
Department of the Interior | U.S. Geological
Survey
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