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Post Hurricanes Beach Report

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COLLIER COUNTY

PUBLIC UTILITIES ENGINEERING DEPARTMENT

POST HURRICANES INSPECTION REPORT

PHOTOS INCLUDE PRE CHARLEY, POST CHARLEY, POST FRANCES

FOR NAPLES BEACH

Report Date: September 16, 2004

Conducted By: Allen J. Madsen


This report includes photos taken before hurricane Charley hit our area on Friday, August 13, 2004. We have photos after Hurricane Charley, taken August 14 th , 2004; followed by photos of damage done by Hurricane Frances, on September 4 th , 2004. The after Frances photos were taken on September 7 th . I have attempted to show the comparison of the beaches from the same vantage points.

This report is conducted from north to south. Marco Island main beach is not included in this report because there was no noticeable erosion to the beach or dune system.

Hideaway Beach is included in the report because of significant sand loss and dune damage.

Over all assessment of the damage caused by the double shot of hurricanes is we have a net loss of sand. Our dune system has been severely compromised. The areas where we had a significant dune system and a beach with a steeper slope than a 10:1 have been impacted the greatest. In my estimation our greatest loss has been to the height (elevation) of the beach and to the vegetated dune system. We had a substantial growth of sea oats and other natural plants that acted to absorb the high surf and wave action. The dune system did its job. During Hurricane Charley I believe we lost 30% of our overall dune system. Hurricane Charley greatly weakened the dunes causing Hurricane Frances to take a greater toll; Frances took about an additional 50 % of what was left. The dune system did its job and held back the surf but the dune paid the price. I feel that another storm or our normal winter storms may be devastating on the dune system.

The beaches over all are very flat or have a reverse slope caused by erosion. It appears the beaches are wider at low tide and very narrow at high tide. This tells me the sand has been rearranged from a steep slope to a flat or a reverse sloped beach. We believe the sand is still in the system and may be returned to the shore. If this does in fact happen, we may have a large berm accrete at the wrack line increasing the reverse slope of the sand creating a deeper runnel at mid beach. That runnel may trap and hold water. R-4

taken 8-12-04 notice about 20’ foot of beach width has been damage

Photo #3709 taken 8-12-04 notice about 20’ foot of beach width has been damage. This is not a row of seaweed this is sea oats.

R-4

taken 9-10-04, there is boardwalk and dune damage.

Photo #4075 was taken 9-10-04, there is boardwalk and dune damage. Notice runnel mid beach.

± R22.5 

taken 8-12-04 notice nicely sloped beach with good dune vegetation 

Photo #3728 taken 8-12-04 notice nicely sloped beach with good dune vegetation.

± R22.5

taken 8-15-04

Photo #3939 was taken 8-15-04

± R22.5

taken 9-10-04-note dune damage, the brown material mid beach is uprooted sea oats

Photo #4091 taken 9-10-04-note dune damage, the brown material mid beach is uprooted sea oats.

± R29

taken looking north from R-29, June 17 th , 2004

3480 taken looking north from R-29, June 17 th , 2004

± R29

taken 8-15-04

Photo 3949 8-15-04

R-29

9-7-04 same beach, looking north

Photo #4022 9-7-04 same beach, looking north

± R-42

elevation of the sand and the wonderful sea oat growth holding the sand in place.

Photo #3199 was taken February 17, 2004. I selected this photo because it shows the elevation of the sand and the wonderful sea oat growth holding the sand in place.

± R-42

Dune mostly washed away

taken 8-15-04 notice a large amount of dune is lost

Post Charley #3963 taken 8-15-04 notice a large amount of dune is lost.

± R-42

This was the dune line. 95% dunes wash away.

taken 9-7-04

Post Frances #4052 taken 9-7-04

± R43+400’

± R43+400’ our reference palm tree

was taken 7-3-04; notice 20 foot sand width and dune vegetation protecting the tree

Photo #2704 was taken 7-3-04; notice 20 foot sand width and dune vegetation protecting the tree.

± R43+400’

taken 8-15-04 this is post Charley

Photo #3970 taken 8-15-04 this is post Charley. ± R43+400’ our reference palm tree.

± R43+400’

taken post Frances 9-7-04 notice 20 foot sand width and dune vegetation is gone

Photo # 4056 taken post Frances 9-7-04 notice 20 foot sand width and dune vegetation is gone.

R-51

8-12-04 notice the white sand buffer west of the dune

Photo #3759 8-12-04 notice the white sand buffer west of the dune

R-51

taken on 8-15-04 shows the 20’ buffer is wiped out

photo #3982 taken on 8-15-04 shows the 20’ buffer is wiped out

R-51

9-7-04 shows the sea oats are wiped out

Photo #4065 9-7-04 shows the sea oats are wiped out

R-58

taken 8-12-04

Photo #3766 taken 8-12-04

R-58

taken 8-16-04

Photo #3991 taken 8-16-04

R-58

taken 9-7-04 major erosion caused by Frances

Photo #4068 taken 9-7-04 major erosion caused by Frances

R75+375’

taken 8-5-04  

Photo #3685 taken 8-5-04

R75+375’

taken 8-16-04 views from the pier, accreted sand bar

Photo #4014 taken 8-16-04 views from the pier, accreted sand bar

R75

taken 9-10-04 notice sand in the dune

Photo #4149 taken 9-10-04 notice sand in the dune

Hideaway Beach

M-3

Taken 4-12-04

Photo #3299 Taken 4-12-04

M-3

9-7-04

Photo # 4033 9-7-04

May 18, 2004

This tree in down in next photo

Photo #3473 May 18, 2004

H-10.5

this is at low tide.

Photo #4042 this is at low tide.

Allen J. Madsen, Inspector