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2800 S.W. 72nd Avenue
Miami ,
FL
33155

Waterways

Waterways:

Jorge Acevedo

Utilities & Right-of-Way Division Chief

(305) 460-5006

JAcevedo2@coralgables.com

Mangrove Trimming Resources:

Mangroves are protected under Florida State Law.

The regulating agency for mangroves in Miami-Dade County is Miami-Dade County Department of Environmental Resources Management - DERM, Coastal Section.

Trimming of most mangroves within Coral Gables will require the services of a Miami-Dade County Certified and Registered Professional Mangrove Trimmer.

For information on mangrove trimming permits and finding professional mangrove trimmers please contact,

Miami-Dade County Department of Environmental Resources Management - DERM, Coastal Section

dermcr@miamidade.gov

(305) 372-6575

Office location:

Overtown Transit Village

701 NW 1st Court, 6th Floor

Miami, Florida 33136

The links below are provided for reference only.  All questions regarding mangrove trimming and professional mangrove trimmers should be directed to Miami-Dade County Department of Environmental Resources Management - DERM, Coastal Section.

What is Nutrient Pollution?

Nutrients, like nitrogen and phosphorus, are naturally occurring – but can be too much of a good thing when found in high concentrations in our waterways. These nutrients are very high in sewage, septic tanks, storm-water runoff, and fertilizers.

Nutrient pollution can contribute to algae blooms. Algae blooms turn the water green and smell terrible, smothering seagrass and killing fish -- they can even be harmful to humans.

Potential Sources of Nutrient Pollution

Fertilizers

Fertilizer is often over-used in residential landscaping. Biscayne Bay and our canals are extremely sensitive to excess nutrients, so we have to be sure to keep these nutrients out of the water to avoid algae blooms.

Septic Tanks

When not properly cared for, septic tanks can leak or flood – creating a land-based source of pollution that drains into our waterways. This pollution can also contaminate the aquifer, our drinking water stored underground. Always maintain your septic tank and have it regularly inspected.

Storm-Water Runoff

Storm-water Runoff is any type of water that doesn’t soak into the ground, but instead “runs off” down a drain or grate and into a waterway. Sometimes this water flows over polluted areas such as parking lots, roads, industrial sites, or yards, bringing contamination into waterways.

Tips to Reduce Nutrient Runoff Pollution

  • Minimize or eliminate fertilizer, herbicide and pesticide use—or switch to organic varieties that are not harmful
  • Plant native plants – they are naturally adapted to our climate and don’t require a lot of water and fertilizer
  • Avoid over-watering your lawn 
  • Use mulch instead of herbicides to help control weeds
  • Sweep up debris – don’t hose down your driveway
  • Minimize or eliminate fertilizing in the summer months when rains are heavy
  • Have septic systems inspected and pumped out every 3 years
  • Routinely check your car for leaks and dispose of engine fluids properly
  • When washing your car at home, use detergents sparingly or bring your vehicle to a commercial car wash
  • Pick up trash, pet waste and litter around your yard and home

Stormwater Runoff Brochure Cover English.jpg Stormwater Runoff Brochure Cover Spanish.jpg
Storm Water/Nutrient Runoff Brochure English Storm Water/Nutrient Runoff Brochure Spanish

Florida International University Tide Gauge Sediment Elevation Study

Scope of Work

Coastal wetlands provide essential direct livelihood services to millions of people, as well as critical regulating services such as maintenance of water quality, protection from storms and erosion, and carbon sequestration. Measuring the vertical movement of the coastal wetland surface and its constituent processes, and relative local sea-level rise (SLR) is necessary to determine whether a wetland can keep pace with SLR.

3 monitoring stations have been installed throughout the City waterways as a part of this project, with two of the stations including both tidal and sediment elevation (RSET-MH) monitoring: (1) Inland Coral Gables waterway, (2) coastal Coral Gables waterway, and (3) Matheson Hammock Park/Preserve.

Tidal & Water Level Monitoring 

Each of the 4 sampling stations include a pressure gauge (Level Troll with conductivity and pressure sensors) that is installed and referenced to NAVD88 and to RSET benchmarks. Water level data are recorded at 15 minute intervals. Locations for tidal stations include Blue Road and Islands of Cocoplum along the Coral Gables waterway where water surface height near coast and inland, to detect potential differences due to rain and canal discharge between inland and outflow waterway locations, are monitored. Mangrove forest water levels are monitored at each RSET site in Matheson Hammock Park and in Islands of Cocoplum mangrove forest areas (blue stars). As part of tidal station maintenance, pressure transducers are field checked with on-site water level measurements, dessicants checked and replaced as needed, and data downloaded monthly. All 4 stations are set up with a telemetry system to obtain real-time data

Sediment Elevation 

Two sediment elevation monitoring sites have been established in mangrove forest areas. From the benchmark pipe, a RSET arm with 9 vertical pins is used to measure the height of the soil relative to the referenced benchmark (36 measurements total). SET measurements are conducted every 6 months. Feldspar marker horizons are established to assess vertical change in soil elevation due to deposition of sediments and organic materials. 

Link to Live Data Feed

CREST buoy with autosampler at the Blue Road sampling site

Below you will find a link to the live stream data.  The buoy is called "CREST_1".

https://stormcentral.waterlog.com/public/FIUedu1