Is there a way to convert the decimal degree shape length into miles?

[BeverlyPham]

I would like to do dynamic segmentation on a sketch of the Sacramento river. My problem is that the shape feature of the sacramento river has the shape length field in decimal degrees, rather than ft or miles. There is a field on the length of the shape file in km, but when I use dynamic segmentation on the route feature, it would always use the decimal degree shape length field. Is there a way to force it to use the field in km  or convert the decimal degree into miles, in order to use the dynamic segmentation in miles?

Thank you for your help.

[ModyBuchbinder]

Hi

The best way is to project the data into a projected coordinate system, and then all the measurements will be translated to feet or meter.
Another way is to use the tools in the Linear Referencing toolbox to create the internal measurements any way you like.

Have fun
Mody

[V_StuartFoote]

Beverly,

Suggest you select a project appropriate projected coordinate system--California State Plane Zone 2, or UTM Zone 10--and import the decimal degree shape files into File Geodatabase feature classes in that projection.

Stuart