Terra Technologies Sun Logo     Terra Technologies

Permit Specialists


Featured Projects (Click to View):
Wetland & Stream Mitigation Banking Page  


Prairie Restoration
Stream Picture
Wetland Photo
Press Releases Button
Projects In Construction Button

Our Services

Permitting Services Button
Wetland & Stream Mitigation Banking Services Button
Endangered Species bat Acoustic Surveys
Biotechnical Engineering Services
Low Impact Development Services
Habitat Restoration Services Button
SWPPP Inspection Services Button
Home Button


About Us

Senior Staff Qualifications
Employment Button
Contact Us Button

Plum Creek
Storm Water Improvements

St. Peters, Missouri

City of St. Peters

The steep slopes surrounding an intermittent stream in a residential area were beginning to subside and cause property damage.  Foundations were starting to shift and future large-scale damage was feared.

Terra Technologies was contracted to design a stable channel that included placing a subsurface drainage pipe, compacting soils, and reducing the slope.  Our biotechnical engineering design included gabions, a fluvial pool, grade control weirs, erosion control blankets, turf-reinforced mats, and a diverse native plant seed blend.

Additionally, our duties included the acquisition of the necessary Clean Water Act permits from the U.S. Army Corps of Engineers as well as the inspection of the construction phase of the project.

Compensatory mitigation was required because of the impacts to waters of the U.S. caused by the channel improvements.  An appropriate offsite mitigation site was found and Terra Technologies designed that project using biotechnical engineering methods, oversaw its construction, and will monitor the status of the restoration.


Plum Creek After Planting
Plum Creek After Planting
Stabilized Slopes


© 2005-, Terra Technologies, Inc. All Rights Reserved.