About

Sloan Engineering Services, LLC (SES) is a dynamic new Civil Engineering consulting business operating out of Gillette, WY.  The Principal Engineer is Charles (C.J.) James Sloan, P.E. (Registered in the State of Wyoming).

We strive to put out the best possible work at fair and competitive prices.  We specialize in drainage design and fixing existing drainage issues on residential or commercial lots.  We are also well-versed in all other aspects of land development from the initial platting process through final completion of site infrastructure.  The main goal of SES is to provide extremely fast turn-around times for small to medium-sized local projects in order to allow you to get about the business of building your project as soon as possible.

The following is a partial list of services that we provide:

  • Commercial Site Plans

  • Water System design, Sanitary Sewer System design, and Storm Drainage System design.

  • Plot Plans for residential lots for both the City of Gillette and Campbell County

  • Residential House Plans

  • Soils Reports (for submittal to Campbell County) - does not require lab material testing

  • Foundation Design (based on Geotechnical Report recommendations)

  • Open Hole Inspections

  • Construction Observation (on a time and materials basis)

  • Development Plans (for larger lots consisting of multiple buildings or a single building that is 25,000 square feet in size or larger)

  • Roadway Design (based on Geotechnical Report recommendations)

  • New Drainage Design

  • Existing Drainage Issue Mitigation

  • Overlot Grading

  • Stormwater Pollution Prevention Plans (SWPPP)

  • Project Cost Estimating

We appreciate you taking the time to check out our website and if you have any questions or think you might have a project similar to what has been listed above, please give us a call @ (605) 390-4916, or email cj_sloan1981@yahoo.com.