Schultz Fire on June 24th. Photo: D. Fleishman, USFS.
Drainage crossing FR146 (waterline) on June 29th near south end of road. Note smooth hillslopes and swale (no defined channel). Photo: City of Flagstaff Water Department.
Same drainage as previous photo, similar upstream view. August 6th. Note defined channel and large rocks deposited by debris flows. Photo: A. Youberg, AZGS.
Overview of drainage crossing on August 4, 2010. Light colored rocks were eroded from the channel and hillslopes above by debris flows and floods. Photo: City of Flagstaff Water Department.
Another drainage crossing farther north on FR146. Photo taken on June 29th by City of Flagstaff Water Department. Again, notice smooth hillslopes and swale.
Same view as previous photo after the July 20th debris flows and several floods. Light colored rocks compose a debris-flow fan deposit. Notice rilling through straw on left hillslopes. Photo was taken on August 9th by D. Fleishman, USFS.
Overview of drainage shown in previous two photos. Debris-flow deposits above and on the road. Waterline exposed in the roadbed. Photo taken on August 17 by A. Youberg.
Farther north on FR146. Photo taken on July 3rd by B. Higgenson, USFS.
Approximately same view of previous photo. Waterline exposed in the eroded roadbed. Photo taken on August 17th by A. Youberg.
Overview of the same drainage crossing on August 4th. Waterline was exposed in the roadbed at two places. Remnant black geotextile on right of photo was the base of the rip-rap used to protect the road. Photo: City of Flagstaff Water Department.
Farther north on FR146, this drainage is just south of the tunnel. Photo taken on June 29th by City of Flagstaff Water Department.
Same drainage as previous photo with a closer view. For orientation, the root wad and two black, downed trees on the left of the photo can be seen more clearly in the previous photo. Channel is now scoured to bedrock. Photo: D. Fleishman, August 9th.
Overview of the same drainage. The waterline is exposed in the eroded roadbed. Photo taken on August 4th by City of Flagstaff Water Department.
Tunnel on FR146. View to west. Photo taken on July 17th, A. Stevenson, USFS.
View of tunnel, looking west, on August 4th. Note the amount of sediment on the road. Photo: City of Flagstaff Water Department.
Hillslope erosion and gully formation on FR146 just west of the tunnel. Photo taken on August 18th by A. Youberg.
Rills formed on hillslopes above FR146 just east of the tunnel. Photo taken on August 18th by A. Youberg.
Drainage crossing farther north on FR146. Photo taken on June 29th by City of Flagstaff Water Department.
Same drainage on August 18th. Channel scoured to bedrock; debris-flow deposits left on road. Photo: A. Youberg.
Drainage near the north end of the FR146 on June 29th. This is the drainage where the waterline was broken with a section washed away. Photo: City of Flagstaff Water Department.
Same drainage on August 4th. Note missing section of waterline. Photo: City of Flagstaff Water Department.
Debris-flow deposit in Basin 5 in the channel where the waterline was severed. M. Nabel, USFS, who took this photo on August 4th, commented that they found sections of waterline line pipe in this deposit.
Debris dam and channel incision in Basin 5. Photo: M. Nabel, USFS, August 4th.
View of paleo deposits exposed in banks of channel eroded by a debris-dam breach. Note coarse boulder deposit at base of channel in the center-right of the photo. This is likely a paleo debris-flow deposit. Photo: M. Nabel, USFS, August 4th.
Debris-flow deposits in Basin 5. Photo: M. Nabel, USFS, August 4th.
Channel on Pleistocene fan below the steep slopes. Channel has been incised since the fire. Person for scale is ~6 ft. Photo: A. Youberg, AZGS, Sept 13th.
Debris-flow deposits in Basin 5. Photo: A. Youberg, AZGS, Sept 13th.
Debris-flow deposits in Basin 5. Photo: A. Youberg, AZGS. Sept 13th.
Channel incision and debris-flow deposits in Basin 5. Photo: A. Youberg, AZGS, Sept. 13th.
View downstream of the channel in Basin 5. Note fraying on the trees from the passage of debris flows and flood flows. Next 16 photos move progressively downgradient to show changes in sedimentation from floods and debris flows. Photo: A. Youberg, AZGS, Sept. 30th.
Downstream photo showing post-fire disturbance and sedimentation in the channel of Basin 5. Co-author, Karen Koestner, for scale. Photos taken on Sept. 30th by A. Youberg.
Channel deposits in Basin 5 vary from finer-grained sand and gravel to very coarse cobble and boulder. The coarser deposits are typically associated with breached debris jams; the finer sediment is moving down-channel in pulses with subsequent flood flows. Photos taken on Sept. 30th by A. Youberg.
Downstream photo showing post-fire disturbance and sedimentation in the channel of Basin 5. Photos taken on Sept. 30th by A. Youberg.
Downstream view of large log jammed against in-channel trees in Basin 5. This photo was taken by N. Petro, NWS, on July 26th after the July 20th debris-flow producing storm and a July 22nd flood-flow producing storm.
Upstream view of the same large log jammed against in-channel trees in Basin 5. This photo was taken by N. Petro, NWS, on July 26th after the July 20th debris-flow producing storm and a July 22nd flood-flow producing storm.
Downstream view of the same large log jammed against in-channel trees in Basin 5. Channel, on Sept 30th, was plugged with finer sediment above the log as a result of a 2nd debris-flow procing storm and numerous floods. Photo: A. Youberg, AZGS.
Upstream view of the same large log jammed against in-channel trees in Basin 5. Channel, on Sept 30th, was plugged with finer sediment above the log as a result of a 2nd debris-flow procing storm and numerous floods. Photo: A. Youberg, AZGS.
Downstream photo showing post-fire disturbance and sedimentation in the channel of Basin 5. One of numerous areas with evidence of blown-out debris jams. Photos taken on Sept. 30th by A. Youberg.
Downstream photo showing post-fire disturbance and sedimentation in the channel of Basin 5. Debris deposited above a blown-out debris dam. Photos taken on Sept. 30th by A. Youberg.
Downstream photo showing post-fire disturbance and sedimentation in the channel of Basin 5. Just below debris dam. Photos taken on Sept. 30th by A. Youberg.
Downstream photo showing post-fire disturbance and sedimentation in the channel of Basin 5. Evidence of another debris dam. Photos taken on Sept. 30th by A. Youberg.
Downstream photo showing post-fire disturbance and sedimentation in the channel of Basin 5. Evidence of another debris dam. Co-author, Karen Koestner, for scale at another debris dam. Photos taken on Sept. 30th by A. Youberg.
Last photo in a series along the channel of Basin 5 showing post-fire disturbance and sedimentation. Photos taken on Sept. 30th by A. Youberg.
Basin 9: Debris-flow deposits on the Pleistocene fan surfaces below the steep hillslopes in Basin 9. Photo: A. Youberg, AZGS, Sept. 24th.
Debris-flow deposits on the Pleistocene fan surfaces below the steep hillslopes in Basin 9. Photo: A. Youberg, AZGS, Sept. 24th.
View downstream of the channel in Basin 9. Channel is barely confined and not incised here. Next 8 photos move progressively downgradient to show changes in sedimentation from floods and debris flows through more confined reaches. Photos taken on Sept. 28th by A. Youberg.
Downstream photo showing post-fire disturbance and sedimentation in the channel of Basin 9. Photos taken on Sept. 28th by A. Youberg.
Downstream photo showing post-fire disturbance and sedimentation in the channel of Basin 9. Co-author, Dan Neary, for scale. Photos taken on Sept. 28th by A. Youberg.
Downstream photo of channel in Basin 9 as it emerges onto the unincised Holocene alluvial fan just above the Forest boundary. Photos taken on Oct 1st by A. Youberg.
Last of the downstream photo progression of Basin 9. This photo is at the Forest boundary where flow is dispersed and sediment if fine-grained. Photos taken on Oct 1st by A. Youberg.
Night view of the Schultz Fire. Photo by Sam Minkler, Navajo Professor of Photography, NAU
