A grading or drainage plan is an important element in preventing property damage, flooding, standing water, and erosion of embankment areas. Calland Engineering's civil engineers are highly trained to design a grading and drainage plan, as we must always consider the existing topography of the development and its relationship with adjacent properties.

Demolition involves taking a building or other man-made structures apart while carefully preserving valuable elements for re-use purposes. As any demolition can be dangerous if there are unplanned collapses, it is of the utmost importance for Calland Engineering to complete a demolition plan in accordance with county and city requirements before any demolition work takes place.

An Erosion Control Plan is important to help implement best management practices to minimize erosion and sedimentation from rainfall at construction and land development sites. It can also be used to identify, reduce, eliminate, or prevent the pollution of stormwater. We provide a detailed erosion control plan that may help prevent violations of surface water quality, ground water quality, or sediment management standards.

Condominium plans, which are several row houses connected by a sidewall, are commonly referred to as multi-plex home plans, small apartments, duplexes, and townhomes. Condominium plans are versatile since they can accommodate a wide range of floor plans and configurations depending on the size of the lot and the overall structure of the home plan.

The tentative map is the parcel configuration proposed prior to a final map, the official recorded document. When subdivisions are recorded as final maps and approved by the city council, the final maps become the legal recordation of parcel configurations.

A slope density analysis is important as it is the computation of the average slope of a property. Generally speaking, the steeper the average slope of the property, the fewer number of units permitted.

A street or public utility improvement plan are used to elevate an existing condition and/or encroachments.

Water, sewer, and surface water (storm water and drainage) are very important as they speak to a community's quality of life and economic vitality. A sewer and water improvement plan can help with a city or county's infrastructure needs.

In hydrology, a water balance equation (hydrological calculation) can be used to describe the flow of water in and out of a system (such as a column of soil or a drainage basin).

Calland Engineering provides all types of reporting, including Low-Impact Development (LID), Best Management Practice for water pollution (BMP), Storm Water Pollution Prevention Plan (SWPPP), Water Quality Mitigation Plan (WQMP), National Pollutant Discharge Elimination System (NPDES), etc.

A retaining wall is a specially designed structure that holds soil on one side and is free standing on the other. They help accommodate changes in grade on a landscape with uneven topography. These walls often allow steeper cuts to give even more useable space on a cut-and-fill hillside lot.