Modeling the hydrology and hydraulics of the cache river system

Misganaw Demissie, Laura Lynn Keefer, Yanqing Lian, Feng Yue, Elias Bekele

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Cache River is located in the extreme southern part of Illinois, just north of the confluence of the Ohio and Mississippi Rivers. Major floods in both of the two rivers have significant impact on the hydrology and hydraulics of the Cache River. In 1915, a cutoff to the Ohio River was constructed east of Karnak that resulted in sub-dividing the Cache River watershed into the Upper and Lower Cache River watersheds. The Upper Cache River watershed consists of the eastern part of the watershed draining directly to the Ohio River through the Post Creek Cutoff. The Lower Cache River watershed consists of the western part of the watershed draining to the Mississippi River through a diversion channel at the outlet. However, part of the Lower Cache River can at times reverse flow, draining to the Upper Cache River and Post Creek Cutoff. Hydrologic and hydraulic models have been developed to simulate the hydrology and hydraulics of the Cache River system to evaluate flow and water level conditions along the river under different alternative scenarios that can be implemented as part of a restoration effort for the Cache River. The hydrologic model that simulates the rainfall-runoff process for tributary watersheds is based on the HEC-HMS model. The model is used to compute runoff from tributary watersheds for selected storm events. Outputs from the HEC-HMS model are then used as inputs to the hydraulic model, UNET. The UNET model, a one-dimensional unsteady-flow dynamic wave routing model, is capable of modeling the complex hydraulics of the Cache River System that experiences flow reversals during flood events in the Lower Cache River.

Original languageEnglish (US)
Title of host publicationProceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009
Subtitle of host publicationGreat Rivers
Pages6010-6019
Number of pages10
Volume342
DOIs
StatePublished - 2009
EventWorld Environmental and Water Resources Congress 2009: Great Rivers - Kansas City, MO, United States
Duration: May 17 2009May 21 2009

Other

OtherWorld Environmental and Water Resources Congress 2009: Great Rivers
CountryUnited States
CityKansas City, MO
Period5/17/095/21/09

Fingerprint

river system
hydrology
hydraulics
river
modeling
watershed
tributary
runoff
unsteady flow
confluence
routing
water level

ASJC Scopus subject areas

  • Environmental Science(all)

Cite this

Demissie, M., Keefer, L. L., Lian, Y., Yue, F., & Bekele, E. (2009). Modeling the hydrology and hydraulics of the cache river system. In Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers (Vol. 342, pp. 6010-6019) https://doi.org/10.1061/41036(342)608

Modeling the hydrology and hydraulics of the cache river system. / Demissie, Misganaw; Keefer, Laura Lynn; Lian, Yanqing; Yue, Feng; Bekele, Elias.

Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers. Vol. 342 2009. p. 6010-6019.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Demissie, M, Keefer, LL, Lian, Y, Yue, F & Bekele, E 2009, Modeling the hydrology and hydraulics of the cache river system. in Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers. vol. 342, pp. 6010-6019, World Environmental and Water Resources Congress 2009: Great Rivers, Kansas City, MO, United States, 5/17/09. https://doi.org/10.1061/41036(342)608
Demissie M, Keefer LL, Lian Y, Yue F, Bekele E. Modeling the hydrology and hydraulics of the cache river system. In Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers. Vol. 342. 2009. p. 6010-6019 https://doi.org/10.1061/41036(342)608
Demissie, Misganaw ; Keefer, Laura Lynn ; Lian, Yanqing ; Yue, Feng ; Bekele, Elias. / Modeling the hydrology and hydraulics of the cache river system. Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers. Vol. 342 2009. pp. 6010-6019
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