LUFKIN – A traffic switch is planned for next week, weather permitting, onto newly completed southbound lanes of US 69 in Zavalla.

Crews are currently working to complete the striping on the southbound side between Clay Plant Road and FM 1270 and will make the traffic shift once it is completed. During construction of the southbound lanes, motorists have utilized the northbound lanes for two-way traffic. Once traffic is shifted, both the southbound and northbound lanes will be fully opened to traffic.

“This is another successful phase of construction completed in this area that we are proud of,” said Rhonda Oaks, public information officer. “The enhanced safety of this newly constructed divided highway will also enhance US 69 as a major evacuation route in the event of major storms on the Gulf Coast.”

Drewery Construction, Nacogdoches TX, will serve as contractor for the $11.9 million construction project, which is one of three projects on US 69 near Zavalla that were designed to widen the two-lane roadway to a four-lane divided highway that included the construction of bridges and overpasses.

Motorists are urged to use caution and stay alert as this new traffic pattern is implemented. Obey all traffic control as this traffic switch is made.

For more information, contact Rhonda.Oaks@txdot.gov or call (936) 633-4395.

It’s a common complaint, “My farm pond is muddy, and we’d like to enjoy clearer water. Do you have a solution?” Indeed, we do, but it may either require habitat management or a bit of pond water chemistry.

Muddy water is often a problem in Texas farm ponds because it inhibits the growth of natural fish food and is simply not aesthetically pleasing. Additionally, the reduced visibility in ponds limits the feeding of sight-feeding predators such as largemouth bass.

If heavy rainfall causes your pond to get muddy, yet clears up in a few days, you may simply need to alter the habitat surrounding the runoff that empties into your pond. The first step is to inspect the watershed and shoreline for signs of erosion. Grass should be established upstream of the pond on any exposed, bare soil. In our area, it is hard to beat using common bahiagrass.  If you want more attractive grass, try using common Bermuda.  Both grass seeds can be found easily (for a reasonable cost) at your favorite local feed store.

If the erosion of soil into your pond by heavy rainfall is not the cause of muddy pond water, the root cause may be negatively charged clay particles. Much like when you couldn’t get the negative ends of two magnets to touch when you were a kid, the same charged soil particles don’t want to touch and therefore will not settle out of a pond. We can easily remedy this with the addition of positively charged particles that will bind with the oppositely charged soil and settle out.

Pond owners have a couple of options to help suspended soil settle: agricultural limestone, gypsum, and alum. Our East Texas ponds are typically a little on the acidic side of the pH scale, so I always recommend starting off with the addition of agricultural limestone. Liming a pond, just like liming a garden or hay meadow, raises the pH (reduces the acidity), and can often help to clear up muddy water.

Be sure to add agricultural limestone as it works slowly and will not kill the fish. There are several forms of lime available, and they certainly work much faster than agricultural lime. However, changing the pH too quickly will cause tremendous stress on the fish in your pond and likely kill them.

Go slow and use agricultural limestone.

Now if the agricultural limestone did not clear up the muddy water to your satisfaction, I next recommend using gypsum.  Gypsum is a naturally occurring soft mineral and is the major component in the sheetrock that covers the interior walls of most buildings.

Available in bulk, gypsum does a tremendous job of binding with the negatively charged, suspended clay particles in your water. Once bound with the clay particle, it precipitates out onto the bottom of your pond.

To determine exactly how much gypsum you would need, you need to take some measurements. First, determine the volume of water in your pond. We measure this in “acre-feet.”  One acre-foot of water can be visualized as 1 acre (think of a football field) that has one foot of water on it.  To determine this on your pond, multiply your pond’s surface area by the average depth.

Next, fill several 1-gallon containers with your muddy pond water, add 1 tablespoon of gypsum to each one, then continue incrementally adding gypsum until you find the minimum tablespoons of gypsum it takes to clear up a gallon of your muddy pond water in 12 hours.  For every tablespoon of gypsum to a 1-gallon container, add 80 lbs. of gypsum for each acre-foot of water in your pond.

This may seem cumbersome at first but can be very simple to execute.  If you wish to learn more about farm pond management, the Angelina County office of the Texas A&M AgriLife Extension Service will host a farm pond management seminar on Tuesday, June 20 at 6:30 pm.  There is no fee for the seminar.