Geomorphology River Assessment Program

The Geomorphology River Assessment Program is a service that OEWRI provides.  The program is designed to investigate the geomorphic conditions of proposed stream restoration sites.  Results of a Geo-RAP provide the following information which is vital to stream restoration design: (1)Topographic survey information to support a restored channel design; (2) Sediment transport information to understand the composition, supply, and transport of bed materials within the existing channel and; (3) Bank stability information to understand the current state of bank stability.

This information is determined through a variety of geomorphic field investigation techniques including  (1) a topographic survey of channel form which includes the evaluation of an upstream reference reach through channel planform and slope, bedform profile, and cross sectional survey; (2) pebble counts and related gradational distributions for multiple channel locations; (3) core samples and sieve analysis of active bar tails and; (4) sub-reach scale bank stability classification based on observations of vegetation cover, bank angle, stratigraphy, and lithology of bank deposits or materials.

Results are provided in report form with recommendations on geomorphic conditions that affect the channel stability for the proposed restoration site.  Below is a list of recent Geo-RAP projects.

Recent Geo-RAP Projects

• Lenexa City Center
• Golf Club of Kansas Channel Restoration Site, Lenexa, KS
• Ravenwood Creek Geoassessment, Springfield, MO
• Overland Park
• Farm Road 102 Culvert
• South Dry Sac
• Galloway Creek Restoration, Springfield, MO