shoreline prior to beach construction
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University Beach Monitoring ProjectDeidre Williams, Division of Nearshore Research
Conrad Blucher Institute for Surveying and Science, Texas A&M University-Corpus Christi
Shoreline prior to beach construction.
Corpus ChristiBay
BR
5
BR
4IR9IR
11
IR10
IR8
BR
2BR
3IR
7
IR6
IR5
IR4
BR
1
EastParking
Lot
IR3
IR2
IR14
IR13
IR12
BR
6
0 50 100 200 400 100
Graphic Scale
Design Beach Submerged Toe
Design Beach Shoreline
Detached Breakwater
Pre-constructionBulkheadLocation
Groin
Beach Cell
PerformingArtsCenter
Corpus ChristiBay
BR
5
BR
4IR9IR
11
IR10
IR8
BR
2BR
3IR
7
IR6
IR5
IR4
BR
1
EastParking
Lot
IR3
IR2
IR14
IR13
IR12
BR
6
0 50 100 200 400 100
Graphic Scale0 50 100 200 400 100
Graphic Scale
Design Beach Submerged Toe
Design Beach Shoreline
Detached Breakwater
Pre-constructionBulkheadLocation
Groin
Beach Cell
PerformingArtsCenter
0.15
0.150.12
0.12
0.15
0.12
Corpus ChristiBay
Ocean Drive
Median Grain Size in mm
Median Grain Size in mm
Corpus ChristiBay
Ocean Drive
0.120.12
0.12
0.15
0.150.15
0.15
0.120.30
0.30
2.00.80
0.48 0.60
0 50 100 150 200 250 300-4
-2
0
2
4
6
8
10
12
14
MHHW (1.61 ft)
Ele
vatio
n, ft
(NG
VD
)
Distance Across Shore, ft
Profile BR4Location: Between Center and West DBW
08/31/01 (Post-construction) 09/07/01 09/28/01 10/31/01 12/14/01 05/30/02 10/05/02 05/31/03 11/20/03 05/18/04
Modification of the beach slope (BR4)
-100 0 100 200 300 400 500 600 700 800 900 1000
-10
-8
-6
-4
-2
0
2
4
6
8
10
12
14
DBWMHHW (1.61 ft)
Ele
vatio
n (N
GV
D),
ft
Distance Across Shore, ft
Profile BR3Location: Center of Center DBW
10/13/00 (Pre-construction) 08/31/01 (Post-construction) 09/07/01 09/28/01 10/31/01 12/14/01 05/30/02 10/05/02 05/31/03 11/20/03 05/18/04
Accretion in lee of central DBW ( BR3)Average median grain size (mm) distribution prior to beach construction (10/13/2003) and after three years 05/17/2004.
University Beach is located adjacent to Texas A&M University-Corpus Christi along the northern shoreline of Ward Island, Corpus Christi, Texas. The beach fill, consisting of 45,000 cu yd of beach-quality quarry sand, was placed to restore a 1,200 ft section of a beach that had eroded some 60 years ago. Prior to construction, the shoreline was completely devoid of a beach and consisted of a deteriorating timber bulkhead as well as discarded concrete and construction materials.
The public recreational beach was completed in August 2001 after 5 months of construction and nearly 7 years of research and planning. The project was made possible through the cooperation and support of The Texas General Land Office (Coastal Management Program and Coastal Erosion Planning and Response Act), Texas A&M University Corpus Christi, The Conrad Blucher Institute for Surveying and Science, and the City of Corpus Christi
Photo Ward Shoreline
Corpus ChristiBay
Ocean DriveBluff
Concrete rubble, and deteriorating timber bulkhead
Filled dirt road
N
TAMU-CC
The evolution of a beach fill placed along Corpus Christi Bay was monitored to determine trends in shoreline change, sub-aerial and nearshore morphology, volumetric change, and sand grain size distribution. The monitoring program was initiated to document the evolution of a restored beach that was constructed during the summer of 2001.
Monitoring program consisted of:
• Beach Profile surveys
• Shoreline Position surveys
• Sediment Sampling and Analysis
• Aerial Photograph InterpretationBEACH CELL DESIGN AND PROFILE TRANSECTS
Survey Date, ShorelineDesign Position08/31/200109/28/200110/31/200103/29/200205/30/200210/05/200205/31/200311/21/200305/18/2004
0 50 100 200 400 800
Graphic Scale (ft)
Corpus ChristiBay
TAMU-CC
BR
2
BR
3
IR7
IR6
IR5
IR4
BR
5
BR
4IR9
IR11
IR10
IR8
SHORELINE POSITION SURVEYS
BEACH PROFILE SURVEYS
Nearly vertical scarp after placement
SEDIMENT GRAIN SIZE DISTRIBUTIONAERIAL PHOTOGRAPHY
Beach immediately after placement 08/2001
Slope modification five months after placement
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