Obstr hearing only
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![5. Hearing on the Obstruction of County Ditch 58-6 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Obstr hearing only
- 1. Coon Creek Watershed District Board Meeting November 28, 2011
- 4. In 1917 Ditch 58 and 58-6 established
- 5. 1964-1970 Crossing installed 1964 1970
- 10. 2011 Flooding Looking downstream Looking upstream 5/23/2011
- 11. 2011 Inspection 5/31/2011 Looking downstream Looking upstream
- 12. 2011 Inspection 9/20/2011 Looking downstream Looking upstream
- 13. 2011 Inspection Looking downstream Looking upstream 10/17/2011
- 14. 2011 Inspection Looking downstream Looking upstream 11/1/2011
- 15. 2011 Flooding Erosion on driveway Flooding over driveway 5/23/2011
- 17. Culvert Yes No Flared End 0.06% Slope 896.8 900.8 Elevation CMP or HDPE CMP Material 40 feet long Length 42” 24” Diameter Recommended Existing
- 18. SWMM Results
- 19. Estimated Cost Note: Cost estimate is based on a HDPE culvert. Other culvert materials may be used such as RCP or CMP but cost may vary.
- 20. Current Quotes Note: *Quote obtained by Deborah “Page” Heig **Contacted by Carl “Dave” Turner, no quote yet received Blank cells indicate contractor was given a bid sheet but did not provide a quote
Notas del editor
- Polk Street Extension/Driveway was established between 1964 and 1970. The aerial photos show that the crossing existed east of its current location in 1964 and is installed by the 1970 photo.
- Dave Turner estimates that approximately 2 acres of his land was damaged from the flooding
- Note the sediment deposition on the downstream photo and the generator/pump on the upstream photo. The flooded waters were dewatered and resulted in sediment deposition downstream. Review the 10/17/2011 photos for comparison.
- Emergency access- road/driveway needs to be built in accordance with current city guidelines to enable proper access for emergency vehicles (and garbage, recycling, delivery and recreational vehicles) Flood damage- in the event the obstruction is not removed by spring flooding the additional stress on the road may cause additional damage to the road structure and surrounding area and infrastructure. If the road is damaged further by additional flooding the associated cost of repair may need to be reassessed as it would then fall under an emergency situation.