The base was repaired with about 370 lbs. of Portland Type I concrete. After cleaning
the exposed surfaces, small batches of concrete were mixed on the surface and brought
down for application. All four corners of the base had 2-3" hollows exposing the thread
of the corner bolts under the plate. The southern edge of the plate lost about 4" of concrete
probably due to water movement from the last hurricane. Hypothesis is that sufficient
force was put on pylon and translated to base to make the base flex about 1", cracking the
concrete on all sides. All voids were packed with new concrete and an additional layer
of canvas bags full of concrete were added in a circle around the plate, with rebar rods
securing the bags to the underlying concrete. Cracking along base plate edges should
be reported as soon as possible before further erosion occurs. Concrete repair may have to
be a normal annual function for this site. Baseplate condition should be annotated for
the monthly maintenence visits.
This site is for recording maintenance records of the La Parguera Marine Reserve NOAA ICON/CREWS station for data management purposes. Please update this blog whenever new operations are performed in the field, so that NOAA/AOML can coordinate data management efforts with the La Parguera ICON/CREWS station field efforts.
Monday, February 25, 2008
Tuesday, February 12, 2008
Update February 6, 2008
A complete cleaning of the CREWS station in La Parguera, Puerto Rico was performed on February 6, 2008 by Francisco Soto and Katie Flynn.
The validation CT was installed at 8:50am and removed at 12:15am. The station was cleaned between 10:10 and 10:55 am.
The cement around the base needs to be replaced.
The validation CT was installed at 8:50am and removed at 12:15am. The station was cleaned between 10:10 and 10:55 am.
The cement around the base needs to be replaced.
Friday, January 18, 2008
Cleaning update january 16, 2008
A complete cleaning of the CREWS station in La Parguera, Puerto Rico was performed on January 16, 2008 by Joselyd Garcia and Katie Flynn.
The validation CT was installed at 7:50am and removed at 12:10am. The station was cleaned between 9:05 and 10:00am.
The cement around the base plate is deteriorating and needs to be replaced!
The validation CT was installed at 7:50am and removed at 12:10am. The station was cleaned between 9:05 and 10:00am.
The cement around the base plate is deteriorating and needs to be replaced!
Friday, December 21, 2007
December 17, 2007 Update
A complete cleaning of the CREWS station in La Parguera, Puerto Rico was performed on December 17, 2007 by Dannise Ruiz and Katie Flynn.
The validation CT was installed at 8:30am and removed at 12:15am. The station was cleaned between 10:10 and 10:55am.
The base looks noticeably worse than last time. The concrete is crumbling away from the metal base on all sides.
The validation CT was installed at 8:30am and removed at 12:15am. The station was cleaned between 10:10 and 10:55am.
The base looks noticeably worse than last time. The concrete is crumbling away from the metal base on all sides.
Wednesday, December 12, 2007
December Update
A complete cleaning of the CREWS station in La Parguera, Puerto Rico was performed on November 29, 2007 by Alex Mercado and Katie Flynn.
The validation CT was installed at 8:50am and removed at 1:15pm. The station was cleaned between 10:10 and 11:30am.
The validation CT was installed at 8:50am and removed at 1:15pm. The station was cleaned between 10:10 and 11:30am.
Friday, November 09, 2007
Cleaning Update November 2, 2007
A complete cleaning of the CREWS station in La Parguera, Puerto Rico was performed on November 2, 2007 by Francisco Soto and Katie Flynn.
The validation CT was installed at 7:50am and removed at 11:10am. The station was cleaned between 9:10 and 9:50am.
The shallow light sensor is not as stable as it was before it was replaced in September, but it doesn't seem to be in danger of coming loose.
The validation CT was installed at 7:50am and removed at 11:10am. The station was cleaned between 9:10 and 9:50am.
The shallow light sensor is not as stable as it was before it was replaced in September, but it doesn't seem to be in danger of coming loose.
Monday, October 15, 2007
CREWS validation October 12, 2007
A complete cleaning of the CREWS station in La Parguera, Puerto Rico was performed on October 12, 2007 by Alex Mercado and Katie Flynn.
The validation CT was installed at 6:50am and removed at 10:15am. The station was cleaned between 8:05 and 8:50am.
The concrete of the base plate is crumbling, but looks about the same as it did in September when Jules and Madeline were here. The CTD's that were installed at the time wobble around quite a bit, but don't seem to be in any danger of coming loose.
The validation CT was installed at 6:50am and removed at 10:15am. The station was cleaned between 8:05 and 8:50am.
The concrete of the base plate is crumbling, but looks about the same as it did in September when Jules and Madeline were here. The CTD's that were installed at the time wobble around quite a bit, but don't seem to be in any danger of coming loose.
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