Design Problem en era/ 



Poge no : 

 Calculated by: 

 Checked by: 



Date : 



2 Of/33 



J. /;■ !'V. 



1 Mar. 73 



Genera/ Problem Description 



A 300 acre artificial offs/iore is /and fs pro- 

 posed in ttie At/antic Ocean Just outside the mouth 

 of De/av^are bay. If is required to deve/op chor- 

 Qcteristics of the /ohijsicQ/ environment of the 

 proposed is/and site and to deve/op a pre/im'/nory 

 design for the is/and. The cotcu/ations ore pre - 

 senfed as fol/ov^s : 



Tab/e of Contents page no. 



A. Description of Phgsicai Environment .... 3 



/. Site Location & Conditions 3 



2. dothymetry of Site • • 7 



5. Water Leve/s s, Currents /O 



a. Hurricane _ Surge /O 



b. Astronomica/ Tides /7 



C. Tida/ Currents 2/ 



4. i^ave Conditions 2C 



a. Waves Generated in De/av>/ore day . . 26 



b. Waves (generated in Ocean 37 



/; Wave Statistics s Refraction. .... 37 



2) Hurricane leaves 53 



5. Preliminary Island Design <^3 



A Revetment on Seaward Side of Is/ and . <^5 



a. Selection of Armor Unit Type <^5 



2, Quay Wq /I Caisson on &ay Side of Is /and . 93 



a. Waves in Harbor- diffraction ?3 



b. Wave Forces during Construction. ... 95 



c. Earth Forces 102 



C. Longshore Transport at Ocean City, Md.. . . 101 



1. Hindcost Wove Data . . 107 



2. Visual Wave Data 122 



D. beach Fi/i Prob/em- Ocean City , h4d. 129 



£. References 132 



References 



* References pertain to appropriate sections of 

 Shore Protection Manual or to numbered 

 references on page Q-132 of design 

 calculations. 



8-2 



