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Boulder Creek CZO assessing flood in Upper Gordon Gulch

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Road into Upper Gordon Gulch

18 Sep 2013

Assessing Gordon Gulch continues

Image: Road into Upper Gordon Gulch [Click image to enlarge]

All Disciplines
Hydrology

Boulder

ISCO washed 15 m downstream

The Upper Gordon Gulch stream gauge has survived! Unfortunately the ISCO was not running and was found washed 15 m downstream. Nate Rock was able to sample all of the upper surface water and precipitation sites and to measure manual discharge. He plans to go back for wells on Friday, September 20. Nate noted that coming down the south-facing forest road definitely required some driving skills and there was water free flowing down the slope in numerous places. Nate also observed that there are more intermittent springs flowing than he has ever seen in the past plus there are new springs that he has never seen before.

Nate was able to come back down Sunshine Canyon and he saw no signage indicating closed roads or roadblocks. However, he did note that local officials were checking IDs on the way up the canyon. The road up was not as heavily potholed and some repair has occurred but it is down to one lane in a few spots.

ISCO washed 15 m downstream

News Category:
RESEARCH | INFRASTRUCTURE

Photos

Boulder creek catastrophic flooding

Failure at about Forest St. from North Boulder Park (photo credit: Suzanne Anderson)

The Gilbert White Memorial Flood marker (top of the black base is the 50 year flood level). (photo credit: Suzanne Anderson)

Pictures of the flow upstream and downstream of the bridge and the flooding on 75th east of the walden ponds. (photo credit: Harihar Rajaram)

Photos taken on a trail run this morning - base of Flatiron 1, above Chatauqua. Photo Noah Fierer

Stream gauge at Lower Gordon Gulch. Photo nate Rock

Large rock removed out of the debris stuck under the bridge! Photo nate Rock

Post storm at Upper Gordon ISCO washed 15 m Upper Gordon Gulch. Photo Nate Rock

Post storm at Upper Gordon Gulch Stream Gauge

Sampling at Upper Gordon Gulch post storm (Need caption)

Upper Gordon post storm (Need caption)

Erosion on the road at Upper Gordon Gulch

Water flowing at Upper Gordon Gulch

Rachel Gabor, Aneliya Sakaeva, and Chris Jaros helped collect samples of floodwater from Boulder Creek, Monday Sptember 16 2013

Sampling the Boulder Creek floodwater on Monday Sptember 16 2013 with a bucket method

Sampling the Boulder Creek floodwater on Monday Sptember 16 2013

Boulder Flood 2013 (Photo Nate Rock)

Boulder Flood 2013 (Photo Nate Rock) Lower Gorden Gulch

Boulder Flood 2013 (Photo Nate Rock)

Boulder Flood 2013 (Photo Nate Rock) people watching flood waters

Boulder Flood 2013 (Photo Nate Rock) Boulder Creek in Boulder

Boulder Flood 2013 (Photo Nate Rock) Road closure

Boulder Flood 2013 (Photo Nate Rock)

Boulder Flood 2013 (Photo Nate Rock) collecting samples

Boulder Flood 2013 (Photo Nate Rock) Debris in road

Boulder Flood 2013 (Photo Nate Rock)

Boulder Flood 2013 (Photo Nate Rock) Sampling

Boulder Flood 2013 (Photo Nate Rock)

Boulder Flood 2013 (Photo Nate Rock) Flooded highway

Boulder Flood 2013 (Photo Nate Rock) Rescue helicopter

September 12th 2013. Wettest day on record.

Prior to Wednesday, the single wettest day on record was July 31, 1919, when 4.80 inches of rain were recorded, according to Bob Henson, a science writer at the National Center for Atmospheric Research. (Daily Camera POSTED: 09/12/2013 04:54:28 AM MDT)

Sept 17 pictures of Stream gauge at Lower Gordon Gulch added.

Sept 18 pictures of Stream gauge at Lower Gordon Gulch added.