The Main Relief Canal in Vero Beach, Florida

The Main Relief Canal is one of the Indian River Farms Water Control District canals that carry drainage water into the Indian River Lagoon in the Vero Beach area.

The Indian River Farms Water Control District describes itself as a single purpose district providing primary drainage and storm water control for approximately 54,000 acres in southeastern Indian River County, and as a political subdivision of the State of Florida. Its services page says the district maintains 227 miles of canals and ditches in the county, does its own mechanical maintenance to keep enough flow for primary drainage, and hires an outside contractor for aquatic weed control. Secondary drainage, from private land into the district canals, is the landowner's responsibility.

A 2004 Indian River County request to the Florida Senate described the district as an area of over 53,000 acres drained by an extensive network of man-made canals, a slightly different figure from the district's own 54,000. That request placed a proposed treatment structure on the Main Relief Canal west of U.S. Highway 1 and the FEC railroad near the Vero Beach airport.

The canal system was dug to drain land for the Indian River Farms Company, which bought 44,000 acres in present-day Indian River County in 1912 for a land reclamation project.

The City of Vero Beach historic preservation history says the company was formed by Iowan and Illinois businessmen, that the final plat of the original Town of Vero was adopted in 1913, and that Herman J. Zeuch, who later became the company's president, played an important role in the town's design. The City of Vero was incorporated in 1919, and in 1925 the new Indian River County was created with Vero, renamed Vero Beach, as its county seat.

The drainage district came the same year as the city. According to the district's own history, the Indian River Farms Drainage District was incorporated on May 8, 1919, for a term of 99 years, and its landowners met on June 4, 1919, to elect a board of three supervisors, who set a 1919 tax of 40 cents an acre. The district's services page adds that its original Plan of Reclamation was adopted on March 4, 1920, while the area was still part of St. Lucie County, and that a court order approving the commissioners' report followed on August 18, 1921. That plan has long been completed, and the district now operates and maintains the works it built.

Digging a drainage canal for the Indian River Farms Company exposed the Vero fossil beds, where the first fossils turned up in 1913.

The Florida Museum of Natural History says the canal cut through a bone-bearing deposit that extended for over 300 meters, though only a few meters thick. F. C. Gifford found the first fossils in the canal bank in 1913 and turned them over to Isaac M. Weills, who collected more with Frank Ayers and other residents, on both banks and on both sides of the railroad crossing. Collecting increased after Ayers found portions of a human skeleton in the same layer in October 1915, the discovery known as Vero Man.

The museum places the fossil site within the City of Vero Beach, southeast of the municipal airport, and states that no collecting or excavating is allowed there without authorization from the City of Vero Beach.

The Indian River Farms Water Control District, which operates under Chapter 298 of the Florida Statutes, runs the canal system today.

The district's history records two name changes: to the Indian River Farms Water Management District in October 1972, after changes in state law, and to the Indian River Farms Water Control District on August 10, 1978. Its original 99-year term would have run to May 8, 2018, but Chapter 2018-176, Laws of Florida, from House Bill 1115, removed that limit on March 23, 2018.

The district says that in the early to mid 1980s it evaluated and updated its original works, producing a computer model of its facilities and revised operating recommendations, and that a later district-wide study was prepared to judge the capabilities of the canal system and set priorities for improvements. Its services page also says the district is working with Indian River County and the St. Johns River Water Management District on a Master Stormwater Management Plan addressing stormwater quantity and quality discharges into the Indian River Lagoon, with the current plan listed for review in October 2025.

Indian River County has described relief canal discharges as a main cause of lagoon damage near Vero Beach and asked the state for treatment money in 2004 and 2006.

In a request submitted to the Florida Senate on January 13, 2004, titled Indian River County Main Relief Canal Pollution Control Structure, county public works staff wrote that a 2002 master stormwater plan showed the three discharge canals of the district carry large amounts of suspended solids, nutrients and floating vegetative debris into the lagoon, and that habitat loss and water quality degradation had been severe in the Vero Beach area, primarily due to the relief canal discharges. The request proposed a vortex treatment unit on the Main Relief Canal with a self-cleaning bar screen and traveling rake to catch hyacinths, water lettuce, duckweed, grasses and trash, a stainless steel cylindrical screen about 20 feet in diameter, and daily maintenance when needed with a clam bucket and pump.

The 2004 request framed the stakes for the stretch of lagoon off Vero Beach. It noted that this part of the Indian River Lagoon is designated Class III, fishable and swimmable, that seagrass coverage had declined significantly because of turbid water from suspended sediments and nutrient-fed algae, and that the area sits centrally between the Sebastian and Fort Pierce inlets near documented spawning grounds for many estuarine species. The county offered $1,000,000 in local cash toward the Main Relief Canal project, which its Board of County Commissioners heard on March 4, 2003.

A 2006 request from the Indian River County Board of County Commissioners, heard at a December 13, 2005 meeting, said the county's section of the lagoon was the second worst polluted section in its 154 mile length. It linked the Egret Marsh Regional Stormwater Park with treatment programs for the South, North and Main relief canals and asked the state for $3,000,000 toward a $6,000,000 initiative of algal turf scrubbing systems beside water bodies that discharge into the lagoon. These Senate records show what the county asked for, not whether the projects were funded or built. Last verified: October 15, 2026, by re-reading the district's home, history and services pages, the city's history, the Florida Museum site page and the two Senate requests for this Main Relief Canal history.