CASE STUDIES OF DELAWARE'S TIDAL INLETS

ROOSEVELT AND INDIAN RIVER INLETS.

W. A. Dennis*, G. A. Lanan, R. A. Dalrymple

*Corresponding author for this work

Research output: Contribution to journalConference article

Abstract

Studies were undertaken to document the past and present characteristics and trends of Delaware's two major tidal inlets. It was found that both inlet complexes are effective sediment traps causing considerable downdrift erosion. The major mechanism by which sand enters Indian River Inlet is by overtopping the impounded south jetty. At Roosevelt Inlet sediments are readily transported past the severed steel sheet pile jetties. The results of a one-dimensional hydraulic model, as well as field measurements, predict the presence of a mean southerly flow through the canal and bay system which connects these two inlets. This flow is shown to have a substantial effect on the behavior and stability of these entranceways, causing major asymmetries on the depositional patterns at each location. Refs.

Original languageEnglish (US)
Pages (from-to)1282-1301
Number of pages20
JournalProceedings of the Coastal Engineering Conference
Volume2
StatePublished - Jan 1 1979
EventProc Coastal Eng Conf 16th - Hamburg, Ger
Duration: Aug 27 1978Sep 3 1978

Fingerprint

Sediment traps
Jetties
Hydraulic models
Canals
Steel sheet
Piles
Erosion
Sediments
Sand
Rivers

ASJC Scopus subject areas

  • Ocean Engineering

Cite this

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title = "CASE STUDIES OF DELAWARE'S TIDAL INLETS: ROOSEVELT AND INDIAN RIVER INLETS.",
abstract = "Studies were undertaken to document the past and present characteristics and trends of Delaware's two major tidal inlets. It was found that both inlet complexes are effective sediment traps causing considerable downdrift erosion. The major mechanism by which sand enters Indian River Inlet is by overtopping the impounded south jetty. At Roosevelt Inlet sediments are readily transported past the severed steel sheet pile jetties. The results of a one-dimensional hydraulic model, as well as field measurements, predict the presence of a mean southerly flow through the canal and bay system which connects these two inlets. This flow is shown to have a substantial effect on the behavior and stability of these entranceways, causing major asymmetries on the depositional patterns at each location. Refs.",
author = "Dennis, {W. A.} and Lanan, {G. A.} and Dalrymple, {R. A.}",
year = "1979",
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volume = "2",
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journal = "Proceedings of the Coastal Engineering Conference",
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}

CASE STUDIES OF DELAWARE'S TIDAL INLETS : ROOSEVELT AND INDIAN RIVER INLETS. / Dennis, W. A.; Lanan, G. A.; Dalrymple, R. A.

In: Proceedings of the Coastal Engineering Conference, Vol. 2, 01.01.1979, p. 1282-1301.

Research output: Contribution to journalConference article

TY - JOUR

T1 - CASE STUDIES OF DELAWARE'S TIDAL INLETS

T2 - ROOSEVELT AND INDIAN RIVER INLETS.

AU - Dennis, W. A.

AU - Lanan, G. A.

AU - Dalrymple, R. A.

PY - 1979/1/1

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N2 - Studies were undertaken to document the past and present characteristics and trends of Delaware's two major tidal inlets. It was found that both inlet complexes are effective sediment traps causing considerable downdrift erosion. The major mechanism by which sand enters Indian River Inlet is by overtopping the impounded south jetty. At Roosevelt Inlet sediments are readily transported past the severed steel sheet pile jetties. The results of a one-dimensional hydraulic model, as well as field measurements, predict the presence of a mean southerly flow through the canal and bay system which connects these two inlets. This flow is shown to have a substantial effect on the behavior and stability of these entranceways, causing major asymmetries on the depositional patterns at each location. Refs.

AB - Studies were undertaken to document the past and present characteristics and trends of Delaware's two major tidal inlets. It was found that both inlet complexes are effective sediment traps causing considerable downdrift erosion. The major mechanism by which sand enters Indian River Inlet is by overtopping the impounded south jetty. At Roosevelt Inlet sediments are readily transported past the severed steel sheet pile jetties. The results of a one-dimensional hydraulic model, as well as field measurements, predict the presence of a mean southerly flow through the canal and bay system which connects these two inlets. This flow is shown to have a substantial effect on the behavior and stability of these entranceways, causing major asymmetries on the depositional patterns at each location. Refs.

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