PPT by dave derrick

1. ONONDAGA CREEK, NEAR SYRACUSE, NY. SITE 5-D & OTHER REACHESTraffic Control Stones & Single Stone Bendway Weirs PPT by dave derrick

2. ONONDAGA CREEK SITE 5-D Diamond-Oriented Traffic Control Stones with Single Stone Bendway Weirs

3. DIAMOND -ORIENTED TRAFFIC CONTROL STONES {TCS} WITH BEDLOAD BENCH IN BETWEEN, WITH TRANSPLANTED VEGETATION ON TOP OF TCS & BEDLOAD BENCH WITH SINGLE-STONE BENDWAY WEIRS ON EVERY 4th TCS .

4. TCS were typically 3 ft by 3 ft by 3 ft, spaced 6 to 8 ft apart, with bedload material choked in between forming a continuous bench. Vegetation was pulled down from top bank & placed on the bench. Every 4th TCS was keyed into the bank & had a single-stone Bendway Weir added to the stream end.

5. Typical stones used as Diamond Traffic Control Stones Photo by derrick

6. Looking DS at a Diamond Traffic Control Stone-in place, but not dug in yet Photo by Mark Schaub, OCSWCD

7. Photo by Mark Schaub, OCSWCD Placing a Diamond Traffic Control Stone

8. Diamond-Oriented Traffic Control Stones with Single Stone Bendway Weirs Key TCS TCS TCS Key TCS TCS SSBW TCS TCS TCS SSBW Key TCS SSBW Square stones (3 ft by 3 ft by 3 ft) placed with a sharp edge facing upstream, designed to “kick” flow off the bank, must be keyed into the bed & bank, spaced 6 to 8 ft apart, every 4th one should be keyed into the bank. Every 4th stone has a Single Stone Bendway Weir.

9. Photo by Derrick Looking at a Single Stone Bendway Weir & a TCS and key stone (one more key stone needed)

10. Diamond-Oriented Traffic Control Stones with Single Stone Bendway Weirs Bedload material is placed between the Traffic Control Stones to form a bench at the same height as the TCS.

11. Traffic Control Stones Photo by Mark Schaub, OCSWCD Bedload material placed between Traffic Control Stones

12. BW Photo by Derrick BW Looking DS at Single Stone Bendway Weirs & Diamond-Oriented Traffic Control Stones (most hidden)

13. Traffic Control Stones with a narrow bench of bedload material between. Note vertical bank above. Onondaga Creek, Site 5-D, constructed July 2006

14. Onondaga Creek, Site 5-D, constructed July 2006 Traffic Control Stones Bedload material placed between Traffic Control Stones

15. Diamond-Oriented Traffic Control Stones with Single Stone Bendway Weirs Plants, root mass, and soil was pulled down from the vertical outer bank to provide streamside vegetation. The mid & upper bank was sloped and seeded.

16. Slide that veg down the slope!

17. Slide more veg down the hill Onondaga Creek, Site 5-D, constructed July 2006

18. Slide even more veg down the slope. Note long “Instant Shade” over stream

19. 3 YEARS AFTER PROJECT COMPLETIONPhotos by Derrick JUNE 18, 2009

20. Looking DS @ the US key & Traffic Control Stones (TCS) & Single Stone Bendway Weirs (SSBW). Note thalweg trace. Hydraulic Cover Stone in middle of pool. 3 YEARS LATER - Onondaga Creek-Site 5-D. -DERRICK 6-18-2009

21. Close-up, looking DS @ TCS & SSBW, note thalweg. Slope at toe of bank = “come & go dynamics” erosion, then deposition 3 YEARS LATER - Onondaga Creek-Site 5-D. -DERRICK 6-18-2009

22. Single Stone Bendway Weir with Traffic Control Stone (key is hidden). Bank is stable & vegged. 3 YEARS LATER - Onondaga Creek-Site 5-D. -DERRICK 6-18-2009

23. Right bank TCS with SSBW DS of the Rocked Riffle. Bank mostly stable & vegged 3 YEARS LATER - Onondaga Creek-Site 5-D. -DERRICK 6-18-2009

24. Right bank partly hidden, TCS’s with a Single Stone Bendway Weir. Stable bank with lush veg & bedload material between TCS’s. 3 YEARS LATER - Onondaga Creek-Site 5-D. -DERRICK 6-18-2009

25. Right bank TCS & SS Bendway Weirs. 3 YEARS LATER - Onondaga Creek-Site 5-D. -DERRICK 6-18-2009