Feature attributes are identified using analytical and softcopy photogrammetric compilation methods.  Automated GIS processes supplement the photo identified feature attributing with the numerical parameters.

Graphical elements are topologically clean as the majority of the linework is intended to create closed boundaries or polygons.  The linework represents physical features existing at the time of data collection.

The aerotriangulation solutions, model set-ups, existing DEM reference models, and the ground control assured the integrity of the spatial relationships among the planimetric, drainage, and road features collected.

All features of this type photogrammetrically identifiable within the Ramsey County coverage are included.

This data meets or exceeds the National Map Accuracy Standard (NMAS) - 1/30 of 1 inch at map scale.  Tested 2.5 feet horizontal accuracy at 95% confidence level.

Not Applicable as it pertains to a two-dimensional Arc/INFO Coverage.  However, during feature compilation the vertical accuarcy meets NMAS - 1/6000 of flight height above mean terrain.

This layer contains a vector representation of bridges and overpasses.  Color aerial photography and airborne GPS used for aerotriangulation.  Aerotrianglution solution used with analytical and softcopy stereo plotters to collect limited planimetric feature.  LIDAR DEM provide by Ramsey County under separate contract with Waggoner Inc. of Jackson, Mississippi was used to create digital ortho images.

Metadata imported.

Metadata imported.

Metadata imported.

Attributes are related to the creation of the bridges layer.

Entity Attributes for Polygons:
OBJECTID
feature
SHAPE
SHAPE.area
SHAPE.len

Entity Attributes for Lines:
OBJECTID
feature
SHAPE
SHAPE.len

Look Up Table: (Dxf_layer)
Bridge Types:
BRDG  Bridge

DISCLAIMER
EXCEPT AS EXPRESSLY STATED HEREIN, THIS DATA IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. LICENSEE BEARS ANY AND ALL RISK RELATING TO  QUALITY AND PERFORMANCE OF THIS DATA.

Limit on Liability
This data is not a legally recorded map or survey and is not intended to be used as one. This data is a compilation of records and information from various state, county, and city offices, and other sources, and should be used for reference only.

In no event will the County of Ramsey be liable for direct, indirect, special, incidental, or consequential damages arising out of the use of, or inability to use, the data, even if advised of  the possibility of such damages.  Specifically, the County of Ramsey is not responsible for any costs including, but not limited to, those incurred as a result of lost profits or revenue, loss of use of data, the costs of recovering such programs or data, the cost of any substitute programs or data, claims by third parties, or for other similar costs. 

The sole liability of the County of Ramsey and the licensee's exclusive remedy for any substantial defect which impairs the licensee's use of the data for purposes stated herein shall be the right to terminate this license and refund any fee paid.

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