Mission Rail Park, Elmendorf Texas

Mission Rail Park, Elmendorf Texas

  • Over 1,000 acres serving industrial tenants and users of all sizes looking to transport products to and from the Eagle Ford Shale; more than 800 railcar spaces of capacity
  • Located in Wilson County in the heart of the Eagle Ford; close to the lowest breakevens in the play
  • Twin Eagle Sand Logistics controls over 450 railcar spaces for sand transloading services
  • Twin Eagle Sand Logistics serves its customers out of 65 million pounds of vertical storage onsite
  • Capable of landing extra-large unit trains up to 150 cars in length
  • One of the few rail facilities in the region capable of receiving multiple unit trains per day as well as providing manifest rail service to users
  • Geographic location provides businesses locating in the Park an optimum location for services to the Eagle Ford Shale region and close proximity to greater San Antonio and surrounding communities.
  • Dual Class 1 Rail Service by BNSF & UP Railroads

For directions to this facility, please click the location on the map.


Rail Park Requirements

Failure to abide by these requirements can result in the following: Load Refusal & Immediate Removal from Twin Eagle Sites. Both the Carrier and Contractor can be notified for Further Discussion, Corrective Actions, and/or Permanent Removal If Necessary.

PPE Requirements

  1. All drivers are required to wear proper PPE while onsite. Drivers must abide by all Twin Eagle, Contractor, & Carrier Rules and Guidelines. Also, all State & Federal Regulations.
  2. Drivers must wear a hard hat with an ANSI Z89 – Ball caps are Unacceptable.
  3. Drivers must wear appropriate safety-toed footwear- Flip Flops, house shoes, crocs are Unacceptable.
  4. Eye Protection must be worn with an ANSI rating of Z87 or better – Regular sunglasses are Unacceptable.
  5. Hearing Protection must be worn with a 32 NRR or Better.
  6. Drivers must wear appropriate work clothing- Shorts are Unacceptable.
  7. Drivers must wear high visibility safety vests with reflective striping.

Obey the Posted Speed Limit and all Applicable Traffic Rules

  1. The Max Speed Limit at all Twin Eagle Sites is 10 MPH or less. You are required to follow all speed limit signs. If conditions exist that make any posted speed limit sign too fast for conditions, you are expected to drive under the posted speed limit.
  2. Drivers must abide by all normal traffic laws while at facility.
  3. Drivers must be aware of all machinery. Multiple belts are being used at this facility. Please be aware of them at all times.

Loading Requirements

  1. Drivers must use Fall Protection for the opening and closing of their hatches. Driver is responsible to make sure that the fall protection is raised and secured after every use. Drivers are responsible for damage to equipment for improper use.
  2. All trucks with sand in them will be turned away. If driver is turned away and is caught dumping in a public area, the proper authorities will be contacted. Trailers are to be empty, clean, and inspected to assure the load will not be contaminated.
  3. While waiting to load at terminal, drivers are NOT allowed to:
    1. Perform repairs to the trucks.
    2. Dump Sand.
    3. Service trailers or hoses.
  4. Drivers must open 2 loading hatches. (If 2 hatches are present.) Verify that bottom hatches are securely closed. Drivers are responsible for the cost of cleaning and replacing any product spills.
  5. Drivers must stay in their truck while in the back on the load line.
  6. Once loaded, close hatches using fall protection retrieve paperwork and immediately leave facility.
  7. All belts at Twin Eagle are equipped with their own scale equipment. This helps the loader hit the accurate mark for requested weights. This will be the sole component used for determining loaded weights at time of loading.
  8. Twin Eagle has strict instructions on weight requirements for each customer. Twin Eagle will not engage in weight debates with any driver. The weight we are instructed to load is the direction we abide by and will only work with drivers regarding weight distribution within the trailer and overweight standards.


  1. We operate our Scale Office with CB radios. All Drivers must have a GOOD WORKING RADIO to load efficiently.
  2. Please keep personal conversations off the Scale House Channel.
  3. Drivers are not permitted, under any circumstance, to be on their cell phones while operating their truck, including but not limited to: Approaching or leaving the loader, approaching or leaving the scale house, or driving through the yard where any personnel is present. If you must use your phone to contact the scale due to not having a CB radio, please do so after you have come to a stop.

All Trash will be disposed of properly by the driver, if you are caught throwing any trash on the ground you will be asked to pick up your trash and exit the facility.