ANNUAL REPORT FOR 2011
UT to Sycamore Creek Mitigation Site
Franklin County
TIP No. B-4115
Prepared By:
Natural Environment Unit & Roadside Environmental Unit
North Carolina Department of Transportation
June 2011
TABLE OF CONTENTS
SUMMARY ........................................................................................................... 1
1.0 Introduction ............................................................................................... 2
.1 Project Description ......................................................................... 2
.2 Purpose ........................................................................................ 2
.3 Project History ............................................................................... 2
.4 Debit Ledger ................................................................................... 2
2.0 Vegetation: ............................................................................................... 3
.1 Success Criteria ............................................................................. 3
.2 Description of Species .................................................................... 3
.3 Results of Vegetation Monitoring ................................................... 3
.4 Conclusions. .................................................................................. 3
3.0 Overall Conclusions and Recommendations ............................................ 3
FIGURES
Figure 1 – Site Location Map .............................................................................. 4
APPENDICES
Appendix A – Site Photos
1
SUMMARY
The UT to Sycamore Creek Mitigation Site is located in Franklin County. The site was
planted in March 2009 and was designed as Stream Enhancement for impacts
associated with bridge project B-4115.
The mitigation encompasses approximately 465 linear feet of Stream Enhancement.
The enhancement effort involved fencing out livestock and replanting a 50 ft. wide
wooded buffer along the northern side of the tributary that leads to Sycamore Creek.
Given the amount of existing bedrock and removal of livestock access, the stream
should stabilize without additional grade control. The area that was enhanced is being
monitored by visual observation for stability and photo points for the survival and density
of vegetation. No hydrologic monitoring is required for this project; however, vegetation
monitoring is required for three years.
After the third year of monitoring, the UT to Sycamore Creek Site shows by visual
observation the planted vegetation is surviving and the tributary is stable. NCDOT
proposes to discontinue monitoring at this site.
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1.0 INTRODUCTION
1.1 Project Description
The UT to Sycamore Creek Mitigation Site is located at Bridge No. 57 over Sycamore
Creek on SR 1419 (Ronald Tharrington Road) (Figure 1). The site consists of
approximately 465 linear feet of stream enhancement mitigation for stream impacts
associated with project B-4115.
1.2 Purpose
In order for a mitigation site to be considered successful, the site must meet the
success criteria. This report details the monitoring in 2011 at the UT to Sycamore
Creek Mitigation Site. Hydrologic monitoring was not required for the site.
1.3 Project History
March 2009 Site planted
August 2009 Vegetation Monitoring (1 year)
July 2010 Vegetation Monitoring (2 year)
June 2011 Vegetation Monitoring (3 year)
1.4 Debit Ledger
The entire UT Sycamore Creek stream mitigation site was used for the B-4115 project
to compensate for unavoidable stream impacts.
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2.0 VEGETATION: UT TO SYCAMORE CREEK MITIGATION SITE
(YEAR 3 MONITORING)
2.1 Success Criteria
NCDOT shall monitor the site by visual observation for stability and photo points for the
survival and the density of the vegetation. NCDOT will monitor the site for a minimum
of three years or until the site is a success.
2.2 Description of Species
The following tree species were planted in the Stream Enhancement Area:
Platanus occidentalis, American Sycamore
Quercus michauxii, Swamp Chestnut Oak
Quercus phellos, Willow Oak
2.3 Results of Vegetation and Stream Stability Monitoring
The planted species in the stream enhancement area along the UT to Sycamore Creek
are surviving and the tributary is stabilized.
2.4 Conclusions
There were approximately 465 linear feet of stream enhancement planted on site. There
were no plots established on the site. By visual observation the UT to Sycamore Creek
Site shows that the planted species are surviving and tributary is stable at this time.
3.0 OVERALL CONCLUSIONS AND RECOMMENDATIONS
NCDOT proposes discontinue vegetation and stream stability monitoring at the UT to
Sycamore Creek Mitigation Site.
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Figure 1. Site Location Map
APPENDIX A
SITE PHOTOS
UT to Sycamore Creek
Photo Point #1 (Overview of Planted Area) Photo Point #1 (Overview of Planted Area)
Photo Point #2 (Looking Upstream at UT) Photo Point #2 (Looking Downstream at UT)
June 2011