Who is Mississippi 811, Inc.?

Mississippi 811, Inc. (MS811) is the statewide "call before you dig" center, which establishes a statewide communications link between those who dig underground and those who own and operate underground facilities in Mississippi. Our purpose is to eliminate damages and reduce the chance of injury or death, destruction of public and private property and loss or interruption of services vital to public health and safety. MS811 is a not-for-profit organization funded by member facility/utility owner operators engaged in the communications, Gas Transmission, Gas Distribution, Electric Power, Products/Pipeline, Municipal Gas/Water/Sewer, cable TV, and other industries.

MS811 website

Data Accuracy:

All layers have been collected using a combination of 1-meter or less aerial imagery or 1 to 5 meter GPS units.

Data Format:

The data will be available for the entire state of Mississippi by county in ESRI shapefile format in WGS84 Lat/Long projection. Metadata is contained within the attribute table for each layer. It is MS811's goal to update each county at least once yearly. However, there will be times when this will not be possible. Updates will be sent to MARIS as they are completed.
All layers for each county will be zipped with the naming schema <county> Last_Updated.zip along with a disclaimer and MS811 logo to be used on hard-copy maps.

Distribution:

Data will be available to organizations that will be using the data in-house without intent to distribute or sell. Data distribution will be based on a signed agreement. Requests for the data will be submitted to MARIS.

To order Mississippi 811 data:

1. Download the Distribution Agreement .PDF Download
2. Fill out the form and sign
3. Email or Fax to MARIS at swalker@mississippi.edu or (601) 432-6893
4. MARIS will send FTP instructions