Dog River at Mouth of Robinson Bayou
Mobile, Alabama, United States
This site normally has a 36"-24" high tide rise above the low tide every day. River Depth can run 3'-12' within 300' of site. Water velocity is about 2 mph when the tide is running. This site is a brackish transition zone (fresh and salt water), depending upon the daily rainfall, wind, storms, and tides. The water is very salty in drought conditions. It is fresh when there is a lot or rainfall. There are a lot of species (red fish, speckled trout, crabs, manatee, catfish, bait fish,alligator gars, alligators, brown pelicans, osprey, bald eagles, migratory birds) which inhabit or migrate through this area. Porpoise were seen from this site in early summer 2017. Flora and fauna may be changing from fresh to salt due to salt water intrusion due to the ocean rise. The marsh around cypress trees is eroding due to boat traffic. Cypress trees in marshes are slowly dying (5-7 trees in 4-5 years). Flora and fauna may be changing from fresh to salt due to salt water intrusion due to the ocean rise. Bacteria (e-coli) warnings occur during heavy rainfalls due to sanitary sewers overflowing upstream.
Location created by
David Strain
- Group: Dog River : Dog River Clearwater Revival
- Lat: 30.6108979
- Lng: -88.0880356
- Waterbody Type: River
- Timezone: America/Chicago
Latest photos
Water depth 2.0M. Salinity at surface: 2.5 ppt; 18" from surface 3.0 ppt; 6" from bottom 3.5 ppt. High tide was about 3 hours ago. Outgoing tide.
Large 14" round turtle seen in water at site this week. Three to five manatees seen on 7 July 2019 around 1830 hrs. Wads of river grass are getting larger 1'-2' in diameter.
Neighbor saw 1-2 porpoise about 150' from site.
Some river weeds sparsely scattered in water.
Water depth 1.8 m at monitoring point.
Salinity was 0 PPT at surface, 18" below surface, and 6" from bottom. No rain for 24 hours, but 1.35" rain the last 48 hours when a storm front passed through the south east. Rising tide. 2 mph South wind. Beautiful day, sunny, no clouds. Water surface clean.
Salinity at surface: 0.5 PPT , 18" deep 1.0 PPT, 6" from bottom (2.25M): 1.5 PPT
Very Hazy, with total cloud cover. Warm. SSE wind at 7 mph. Falling tide. No rain for 24 hours. 1.2" rain the last 48 hrs.
Totally overcast for several days. No sun with lots of fog. 0.01" rain for last 24 hours. Flock of 8 brown pelicans on pier about 100' downstream to the west. Osprey in tree downstream.
8 Brown pelicans on pier about 100' downstream. Osprey in tree downstream. No sun/overcast for last 24 hours.
Flock of 25-30 cormorants were swimming downstream prior to water testing. White pelicans are migrating through area. Black birds are roosting in cypress trees to the NE of site on marsh island. Blue Heron was roosting in cypress tree behind cormorants in flight.
0 rain for last 48 hours. 0.37" in last 7 days. Very hazy (cannot see the sun).
3mph NNW wind.
Small specs in water samples after stabilizing samples and shaking repeatedly. Suspect algae blooms due to high oxygen content during the day.