Data Retrieval - Station Information

Grand Isle, LA

Station ID: 8761724

Station Information

Latitude: 29° 15.8' N	Mean Range: 1.04 ft.
Longitude: 89° 57.4' W	Diurnal Range: 1.06 ft.
Established: Nov 9 1979
Present Installation: Mar 30 1990
NOAA Chart #: 11358
Time Meridian: 90 W

Water Level Station Image for Grand Isle, LA

Click for more photos

Data Types Available:

Primary Water Level
Backup Water Level
Wind
Air Temperature
Water Temperature
Barometric Pressure

Station and Bench Mark Drawing

Click HERE for Drawing
(Not for navigational use)

Station Location Chartlet

Click HERE for Map
(Not for navigational use)

EPOCH Update Information:

EPOCH Datum Comparison:	Click HERE -	check datum differences between the old epoch (1960-1978) and the new epoch (1983-2001)
Superceded Bench Mark Data Sheet:	Click HERE -	bench mark sheet on the old Tidal Datum Epoch (1960-1978)
Superceded Datums:	Click HERE -	datums on the old Tidal Datum Epoch (1960-1978)
Mean Sea Level Differences List:	Click HERE -	mean sea level differences between the two epochs for all stations.

Mean Sea Level Difference:
for 8761724 Grand Isle, LA

1983-2001	1960-1978	Difference:
6.39 ft.	6.32 ft.	0.07 ft.

Location:

To reach the tidal bench marks from the Post Office in Grand Isle, proceed 3.9 km (2.4 mi) NE along State Highway 1, then 1.3 km (0.8 mi) NE along a paved road, then 0.2 km (0.1 mi) NW along Semper Road leading to the U.S. Coast Guard Station. The bench marks are located within the U.S. Coast Guard compound. The tide gage is located next to the boat house.