Draft:Midnight Pass

Midnight Pass

Midnight Pass is a historically significant tidal inlet located between Siesta Key and Casey Key in Sarasota County, Florida. Once a vital connection between the Gulf of Mexico and Little Sarasota Bay, the pass was artificially closed in 1983, leading to significant environmental, economic, and recreational changes in the region. A major contributing factor to the closure was the dumping of dredge spoil from the U.S. Army Corps of Engineers (ACE) during the 1960s dredging of the Intracoastal Waterway (ICW). The improper disposal of over 400,000 cubic yards of spoil near Bird Island caused sediment to settle into the bay, blocking the northern channel of Midnight Pass and destabilizing the inlet​​​. Efforts to reopen the pass and restore the natural tidal flow have been the subject of ongoing debate and advocacy for decades.

---

Geography

Midnight Pass historically separated the barrier islands of Siesta Key and Casey Key. The pass allowed water from the Gulf of Mexico to flow into Little Sarasota Bay, providing crucial tidal exchange that helped regulate water quality, support marine habitats, and prevent stagnation. The pass was particularly important for maintaining the health of seagrass beds, oyster reefs, and clam populations in the bay.

The pass was first officially recognized in maps from the 1800s, although evidence suggests that a tidal inlet in this area had existed for hundreds of years prior. It was officially named "Midnight Pass" in the 1920s, a name derived from local lore that the pass was created "overnight" during a storm event.

---

History

The stability of Midnight Pass began to deteriorate in the mid-20th century following the dredging of the Intracoastal Waterway (ICW) by the U.S. Army Corps of Engineers in the early 1960s. During this project, more than 400,000 cubic yards of dredge spoil were dumped near Bird Island, leading to sediment settling into Little Sarasota Bay. This blocked the northern channel of Midnight Pass and contributed to its eventual destabilization​​.

As the northern channel became increasingly obstructed, the pass began migrating northward. By the early 1980s, its migration threatened two nearby Gulf-front homes. In 1983, Sarasota County and state officials authorized the closure of Midnight Pass, allowing the homeowners to fill in the inlet. The closure plan included relocating the pass further south, but after five failed attempts to reopen the inlet, the pass remained closed​​. The closure permanently altered the landscape, creating a continuous land bridge between Siesta and Casey Keys, now known as Palmer Point Park.

2024 Reopening After Hurricane Helene

On September 27, 2024, Hurricane Helene, a powerful Category 4 storm, made landfall in Florida, causing significant coastal impacts. One of the most notable outcomes was the reopening of Midnight Pass, which had been artificially closed since 1983. The storm's surge and wind action lowered the large artificial sand mound that had accumulated over decades of beach renourishment, allowing water to flow between the Gulf of Mexico and Little Sarasota Bay once again.

After the hurricane passed, local residents quickly observed the reopened pass, and social media was flooded with videos showing boats, jet skis, kayaks, and swimmers navigating through the channel. As the water levels receded, a group of citizens took to shoveling sand in an effort to help maintain the natural flow of the pass, demonstrating a community-driven initiative to preserve this rare opportunity for tidal exchange.

While the pass briefly reopened after the storm, it was unable to maintain a consistent flow and eventually closed again. This outcome reflects the understanding of the area's hydraulics, where both the northern and southern channels of Midnight Pass remain choked with spoil material from dredging, beach replenishment sand, and organic matter buildup caused by decades of stagnant water. Although the pass may not remain open permanently, it is possible that future tidal or storm events could temporarily restore flow through the pass​​​.

---

Environmental Impact

The closure of Midnight Pass had far-reaching environmental consequences. The inlet had served as a natural "safety valve" for Little Sarasota Bay, allowing for daily tidal flushing that regulated salinity levels and prevented the buildup of pollutants​​. With the pass closed, the bay experienced a significant decline in water quality, leading to frequent fish kills, the loss of seagrass meadows, and the extinction of once-thriving clam and oyster populations​​​.

One of the most dramatic impacts of the pass closure was the decline of seagrass beds, which had once covered extensive areas of Little Sarasota Bay. These beds were critical habitats for juvenile fish, shrimp, and crabs, and their loss led to a significant reduction in the biodiversity of the bay​​. By some estimates, seagrass coverage declined by as much as 95% after the pass was closed​​.

The closure also accelerated coastal erosion on South Siesta Key, especially at Turtle Beach, which previously had never required renourishment​​. Since 1983, repeated and costly beach renourishment projects have been required to mitigate the erosion caused by the loss of natural sediment flow from Midnight Pass​​.

---

Fish Kills and Hypoxia

The loss of tidal exchange led to frequent hypoxic conditions (low oxygen levels) in Little Sarasota Bay, particularly after heavy rainfall, which caused fresh water to pool in the bay. Without the natural flushing action of Midnight Pass, the bay's waters became stratified, leading to fish kills as early as 1987​​. These events have recurred regularly since the closure, causing significant ecological damage and highlighting the ongoing degradation of the bay's health.

---

Efforts to Reopen Midnight Pass

Since the closure, there have been multiple efforts to reopen Midnight Pass. The Midnight Pass Society, a local advocacy group founded shortly after the closure, has been one of the leading organizations pushing for the pass’s restoration. In 1985, a Blue Ribbon Panel and Mote Marine Laboratory both recommended reopening the pass to prevent further environmental damage, but efforts were stalled due to regulatory and financial challenges​​.

In recent years, a new organization, Midnight Pass Society II, was formed to continue the fight for the pass’s restoration. With support from over 9,000 residents and visitors, the group has advocated for reopening the pass to restore the health of Little Sarasota Bay and reduce the need for expensive beach renourishment projects​.

There have been ongoing debates between those advocating for reopening the pass and environmental groups such as Manasota 88, which argues that the area has developed into a "new ecosystem" since the closure​​. Proponents of reopening, however, contend that the current state of Little Sarasota Bay is far from healthy and that restoring the pass is essential for reviving the bay’s ecosystem.

---

The Letter and Discovery of Evidence

In 1996, Sarasota County received a letter from the U.S. Army Corps of Engineers (ACE), rejecting the county’s request for a Section 1135 study to reopen Midnight Pass. The ACE’s response argued that the closure of the pass was a result of natural processes, claiming that the 1962 and 1963 dredging projects did not significantly impact the pass​. However, following this letter, photographic evidence surfaced at the Sarasota Herald, showing the dredging of Midnight Pass in the early 1960s.

The photographs revealed spoil deposits on the north end of Casey Key and Bird Island at the mouth of the pass. Bird Island was shown covered in a layer of white sand 25 feet deep, contradicting the ACE’s claim that the spoil material had not been placed in the vicinity of the pass​. Despite this new evidence clearly implicating ACE activities in the destabilization of Midnight Pass, the Sarasota County Commissioners have yet to officially respond to the ACE with this information. The reasons for their lack of response remain unclear, leading to speculation about political or legal concerns​.

---

Economic and Recreational Impact

The closure of Midnight Pass has also had a negative impact on the local economy. Before its closure, the pass was a popular destination for boating, fishing, and swimming, drawing residents and tourists alike. With the decline in water quality and frequent fish kills, these activities have diminished, affecting local businesses and reducing recreational opportunities​.

Prior to the closure, the sandy beaches north of Midnight Pass, extending all the way to Point of Rocks, were known for their large, naturally replenished stretches of fine white sand. These beaches never required artificial sand replenishment. However, since the closure in 1983, over $30 million has been spent on beach renourishment projects in the area, with no end in sight. The loss of natural sediment flow from Midnight Pass has accelerated erosion, forcing costly and repeated renourishment efforts to maintain the beaches.

Reopening the pass would not only improve the bay's health but also potentially boost local tourism and recreational activities by restoring the clear waters and vibrant marine life that once characterized the area​​​​​.

---

Future of Midnight Pass

In recent years, local government agencies and environmental organizations have begun to re-examine the possibility of restoring Midnight Pass. In 2024, Sarasota County initiated a feasibility study to explore options for reopening the pass and improving tidal flow between the Gulf of Mexico and Little Sarasota Bay​​.

Advocates for reopening the pass argue that doing so would improve water quality, restore lost habitats, and reduce the need for costly beach renourishment projects. They also emphasize that restoring natural tidal flow is the most effective way to revitalize Little Sarasota Bay’s ecosystem​​.

---

References

References

1. Midnight Pass Society II, 2023. History & Impact of Midnight Pass.

2. Sarasota Bay Estuary Program, 2023. The Health of Little Sarasota Bay.

3. Mote Marine Laboratory, 1985. Recommendations on Midnight Pass.

4. Sarasota County Government, 2024. Midnight Pass Feasibility Study.