Road Erosion PotentialTown of New PaltzUlster CountyState of New York

New Paltz• Home of SUNY New

Paltz• I-87 interchange and

a bustling town • Surrounded by

countryside and farmland

Purpose• Analyze ground erosion potential on roads within the town’s

boundaries.• Allow for prioritization of repair and maintenance efforts• Save money• Better use of materials• Better road conditions

Road System

Erosion Potential

Erosion Potential (Cont.)• Obtained from National Geospatial Gateway• Original Plan• Calculate slope using DEM data from the NGG• Research what soils are most prone to erosion• Download soil types for the area• Calculate erosion potential based on combined slope and soil

types• Soil Data from NGG• Already classified erosion potential!

Moving on…

Buffer Overlay

Clipped to Erosion…• Required

definition query for each erosion class• Created 3

separate clipped buffer polygons• Merged into

one…

Single Road Erosion Overlay

Selected Roads• First done by location

intersect• Ended up with a list of

176 roads…

• Moved to visual interpretation• Determined what

general areas required the most attention

• Mohonk Rd. and surrounding side roads• St. Hwy 208• St. Hwy 32• Interstate 87 onramp• Northern Section of

Interstate 87• Jansen Rd.• South Putt Corners Rd.

Thank you

Questions?