Data Collection

This initial task entails research of record maps, monument ties, deeds and title report information to establish the necessary right-of-ways and property lines and to show their relationship to existing and proposed improvements. This information is used to create any descriptions and plats necessary to acquire additional fee title property, right-of-way or utility easements needed to complete the project.

Control Surveys

Control surveys are performed at the beginning of the project for the aerial photogrammetric work, supplementary surveys, right-of-way and property surveys, as well as for construction staking. These control surveys are supplemented as needed to facilitate construction staking and the control of construction staking throughout the project.

Field Investigations

Field investigations include field surveys, aerial surveys, review of data available from record maps, utility maps, assessment district maps, improvement plans, and Assessor’s parcel maps. Field surveys are used to identify items such as obstructions, as-built locations of utilities, flow lines of drainage and stream crossings, details of bridge and drainage structures, elevations at fences, walls, manhole covers, utility vaults and the location, trunk diameter and type of trees that may be in conflict with proposed improvements. Aerial surveys are used to locate structures (driveways, ramps, sidewalks, drainage and bridge facilities) to identify topographic features (contour intervals, grade breaks, toe of slope, hinge points, elevation at edge of pavement), improvements (such as existing residences and residential structures), visible utilities and striping. Plan and map information are used to supplement field and aerial survey data.

Field investigations would specifically include the location and identification of:

• Topographic Information – Contour intervals, grade breaks, toe of slope, hinge points, elevations at edge of pavement, centerline, lane lines, fog line, flow line of roadside ditches, flow lines of drainage conduits and swales, elevations at fences, walls, vaults, manhole covers, pull boxes, visible utilities.
• Trees – Location, height, trunk diameter and type of trees.
• Structures – Driveways, culverts, drainage structures, curbs, edge of pavement, fences, walls, existing residential and commercial structures, existing signal improvements, points of connection at each terminus of proposed improvements.
• Visible Utilities – Location of utility poles, guy anchors, pull boxes, vaults, manholes, meters.

Construction
Staking Tasks typically include office calculations and construction staking diagrams and all field construction control. All locations, lines and grades of proposed improvements are staked at the appropriate minimum interval and offset.

The following are examples of the types of projects on which our staff has provided surveying and/or construction staking services:

• Water and Wastewater Treatment Projects
• Maintenance Facility Projects
• Military Base Housing Projects
• Residential Development Projects
• Commercial Development Projects
• Storm Drainage and Flood Control Projects
• New Roadway and Roadway Widening or Realignment Projects
• Traffic Signalization Projects
• Bikeway Projects