The Tamiami Trail is more than a one-mile bridge.
The Big Cypress Nat'l Preserve portion has 49 little bridges on it, each 25 to 300 feet wide, which are more or less evenly dispersed over a span of thirty five miles.
The hydrologic misfortune is their uneven distribution of flow (see figure above).
On the one hand there's the reach near Turner River Road and Barnes Strand which is seemingly bountifully fed, but that abundance comes at the expense of sending too little water to the marl prairies to the east and west. The biggest problem area of all is where the bar charts show big proportions of red. That's a sign that water is being sent directly into canals/channels on the downstream tailwater side of the bridges instead of into wetlands (as sheet flow) where it belongs.
The solution in short calls for severing all tidal connections and re-plumbing the upstream road and canal infrastructure to replenish water into wetlands instead. That will not only resuscitate a seasonally-sustained sheet flow regime back into the swamp, but also guarantee a vital slow-feed of freshwater into the downstream vital estuaries, too.
Healthy estuaries start in the swamp (song).