Accession Number:

AD0753860

Title:

The Evolution of Lewes Harbor.

Descriptive Note:

Technical rept.,

Corporate Author:

DELAWARE UNIV NEWARK COLL OF MARINE STUDIES

Personal Author(s):

• Kraft,John C.
• Caulk,Robert L.

Report Date:

1972-10-01

Pagination or Media Count:

63.0

Abstract:

A detailed analysis of the historic record of changes in coastal morphology in the Delaware Cape area shows a sequential progression of events of coastal change. This orderly sequence of development and erosion of coastal landforms appears to be evident from the earliest records of the 1630s onward to the present. When coupled with the accurately engineered maps of the 19th and 20th centur9ies, it appears that geological projection of short term future coastal change is valid. Lewes Harbor is now being actively destroyed by silting and erosional processes. Short term projection of changes in coastal morphology appear to clearly indicate that the spit, Cape Henlopen, will join the inner breakwater of Lewes Harbor in the short term future. With this event, the complete silting of the inner harbor should occur and a tidal flat bordered by a coastal marsh will develop. Author

Descriptors:

• (*COASTAL REGIONS
• EROSION)
• (*HARBORS
• EROSION)
• SILT
• OCEAN WAVES
• WIND
• SEDIMENTATION
• BREAKWATERS
• DAMAGE
• PREDICTIONS
• SWAMPS
• ESTUARIES
• DELAWARE BAY
• ATLANTIC OCEAN

Subject Categories:

• Geology, Geochemistry and Mineralogy
• Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE