This is general overview report of existing conditions of Rock Creek (near Ovando, MT). The study area is the main steam of Rock Creek between Cooper Lake Road (upstream) and Kleinschmidt Flat Road (downstream). Included in this report are an analysis and graph of the longitudinal profile (total and broken into upper and lower sections), a substrate characterization based on Wolman Pebble count data including a cumulative distribution analysis with results presented in tabular format and as both a graphical chart and bar chart. An images report has been included of some of the reach's aerial photographs and other images to provide a visual overview for assistance in interpreting the data and analysis. The final sections of the report include the survey overview and elevation controls and processed survey data for the Longitudinal Profile (total length). This report is intended to characterize and document the existing condition of reach and for assessment of potential restoration efforts.
Longitudinal Profile Data | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Station | Position | Bed | Surface | Bankfull | Terrace | Instrument | Station | Position | Bed | Surface | Bankfull | Terrace | Instrument | |
LP 0+00 | 0.00 | 996.17 | 0.00 | 996.40 | 997.72 | 1000.87 | LP 26+51 | 2651.00 | 978.97 | 0.00 | 980.27 | 983.42 | 995.37 | |
LP 1+00 | 100.00 | 994.97 | 0.00 | 995.68 | 997.52 | 1000.87 | LP 27+63 | 2763.00 | 978.71 | 0.00 | 979.56 | 982.01 | 984.01 | |
LP 2+70 | 270.00 | 993.67 | 0.00 | 994.47 | 996.47 | 1000.87 | LP 29+63 | 2963.00 | 977.71 | 0.00 | 978.51 | 980.41 | 984.01 | |
LP 4+10 | 410.00 | 992.57 | 0.00 | 993.47 | 994.42 | 1000.87 | LP 32+43 | 3243.00 | 976.51 | 0.00 | 978.71 | 978.46 | 984.01 | |
LP 5+30 | 530.00 | 991.97 | 0.00 | 992.58 | 994.87 | 1000.87 | LP 34+83 | 3483.00 | 975.51 | 0.00 | 976.41 | 977.26 | 984.01 | |
LP 6+80 | 680.00 | 990.97 | 0.00 | 991.47 | 993.07 | 1000.87 | LP 36+93 | 3693.00 | 974.91 | 0.00 | 975.41 | 977.16 | 984.01 | |
LP 7+80 | 780.00 | 990.37 | 0.00 | 991.17 | 992.67 | 1000.87 | LP 38+33 | 3833.00 | 974.11 | 0.00 | 974.61 | 977.76 | 984.01 | |
LP 9+30 | 930.00 | 989.47 | 0.00 | 990.52 | 991.77 | 1000.87 | LP 40+03 | 4003.00 | 973.41 | 0.00 | 974.26 | 975.31 | 984.01 | |
LP 10+96 | 1096.00 | 989.47 | 0.00 | 989.97 | 991.02 | 1000.87 | LP 42+73 | 4273.00 | 972.51 | 0.00 | 973.16 | 974.76 | 984.01 | |
LP 12+46 | 1246.00 | 987.97 | 0.00 | 988.67 | 990.07 | 1000.87 | LP 44+83 | 4483.00 | 971.61 | 0.00 | 972.31 | 973.51 | 984.01 | |
LP 13+76 | 1376.00 | 987.17 | 0.00 | 987.72 | 988.82 | 995.37 | LP 47+58 | 4758.00 | 970.82 | 0.00 | 971.77 | 972.37 | 977.82 | |
LP 15+41 | 1541.00 | 986.17 | 0.00 | 987.02 | 988.52 | 995.37 | LP 50+08 | 5008.00 | 969.92 | 0.00 | 970.62 | 971.27 | 977.82 | |
LP 16+46 | 1646.00 | 985.27 | 0.00 | 985.92 | 987.12 | 995.37 | LP 51+68 | 5168.00 | 968.92 | 0.00 | 969.55 | 970.97 | 977.82 | |
LP 19+01 | 1901.00 | 982.27 | 0.00 | 983.07 | 984.22 | 995.37 | LP 53+98 | 5398.00 | 967.92 | 0.00 | 968.32 | 969.42 | 977.82 | |
LP 21+51 | 2151.00 | 981.27 | 0.00 | 981.97 | 983.07 | 995.37 | LP 57+98 | 5798.00 | 963.72 | 0.00 | 964.82 | 966.62 | 977.82 | |
LP 23+91 | 2391.00 | 980.57 | 0.00 | 981.17 | 982.07 | 995.37 |
General Characteristics | ||||||
---|---|---|---|---|---|---|
Reference | Elevation Change | Distance | Slope (ft/ft) | Slope (%) | ||
Overall Bankfull | 31.58 ft | 5798.00 ft | 0.0054 | 0.5446 % | ||
Overall Water Surface | 0.00 ft | 0.00 ft | 0.0000 | 0.0000 % | ||
Feature | Minimum Slopes | Average Slopes | Maximum Slopes | |||
ft/ft | % | ft/ft | % | ft/ft | % | |
Riffle Slopes | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % |
Pool Slopes | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % |
Segments | ||
---|---|---|
Stationing | Name/Label | Type |
0.0 - 5798.0 | Section | N/A |
Benchmarks and Markers | |||
---|---|---|---|
Indicator | Position | Elevation | Description |
BM #1 | 0.0 | 1000.0 | Top of Benchmark |
BM #1 | 0.0 | 1000.0 | Ground @ Benchmark |
BM #2 | 5823.0 | 964.42 | Top of Benchmark |
BM #2 | 5823.0 | 964.42 | Ground @ Benchmark |
LP 19+01 | 1901.0 | ~ Location of slope break |
General Characteristics | ||||||
---|---|---|---|---|---|---|
Reference | Elevation Change | Distance | Slope (ft/ft) | Slope (%) | ||
Overall Bankfull | 13.33 ft | 1901.00 ft | 0.0070 | 0.7011 % | ||
Overall Water Surface | 0.00 ft | 0.00 ft | 0.0000 | 0.0000 % | ||
Feature | Minimum Slopes | Average Slopes | Maximum Slopes | |||
ft/ft | % | ft/ft | % | ft/ft | % | |
Riffle Slopes | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % |
Pool Slopes | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % |
Segments | ||
---|---|---|
Stationing | Name/Label | Type |
0.0 - 1901.0 | Section | N/A |
Benchmarks and Markers | |||
---|---|---|---|
Indicator | Position | Elevation | Description |
BM #1 | 0.0 | 1000.0 | Top of Benchmark |
BM #1 | 0.0 | 1000.0 | Ground @ Benchmark |
LP 19+01 | 1901.0 | ~ Location of slope break |
General Characteristics | ||||||
---|---|---|---|---|---|---|
Reference | Elevation Change | Distance | Slope (ft/ft) | Slope (%) | ||
Overall Bankfull | 13.33 ft | 1901.00 ft | 0.0070 | 0.7011 % | ||
Overall Water Surface | 0.00 ft | 0.00 ft | 0.0000 | 0.0000 % | ||
Feature | Minimum Slopes | Average Slopes | Maximum Slopes | |||
ft/ft | % | ft/ft | % | ft/ft | % | |
Riffle Slopes | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % |
Pool Slopes | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % |
Segments | ||
---|---|---|
Stationing | Name/Label | Type |
0.0 - 1901.0 | Section | N/A |
Benchmarks and Markers | |||
---|---|---|---|
Indicator | Position | Elevation | Description |
BM #1 | 0.0 | 1000.0 | Top of Benchmark |
BM #1 | 0.0 | 1000.0 | Ground @ Benchmark |
LP 19+01 | 1901.0 | ~ Location of slope break |
General Characteristics | ||||||
---|---|---|---|---|---|---|
Reference | Elevation Change | Distance | Slope (ft/ft) | Slope (%) | ||
Overall Bankfull | 18.25 ft | 3897.00 ft | 0.0047 | 0.4683 % | ||
Overall Water Surface | 0.00 ft | 0.00 ft | 0.0000 | 0.0000 % | ||
Feature | Minimum Slopes | Average Slopes | Maximum Slopes | |||
ft/ft | % | ft/ft | % | ft/ft | % | |
Riffle Slopes | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % |
Pool Slopes | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % | 0.0000 | 0.0000 % |
Segments | ||
---|---|---|
Stationing | Name/Label | Type |
1901.0 - 5798.0 | Section | N/A |
Benchmarks and Markers | |||
---|---|---|---|
Indicator | Position | Elevation | Description |
BM #1 | 0.0 | 1000.0 | Top of Benchmark |
BM #1 | 0.0 | 1000.0 | Ground @ Benchmark |
BM #2 | 5823.0 | 964.42 | Top of Benchmark |
BM #2 | 5823.0 | 964.42 | Ground @ Benchmark |
LP 19+01 | 1901.0 | ~ Location of slope break |
Cumulative Distribution of Pebble Count Data | |||
---|---|---|---|
Particle Type | Size | Count | Cumulative % |
Silt/Clay | < 0.062 mm | 9 | 10.35 |
Sand | 0.062 mm to 2 mm | 11 | 22.99 |
Gravel | 2 mm to 64 mm | 63 | 95.4 |
Cobble | 64 mm to 256 mm | 3 | 98.85 |
Boulder | 256 mm to 2048 mm | 1 | 100.0 |
Bedrock | > 2048 mm | 0 | 100.0 |
Pebble Count Summary | ||
---|---|---|
D | Percent | Size (mm) |
d15 | 15% | 0.22 |
d35 | 35% | 3.55 |
d50 | 50% | 7.29 |
d84 | 84% | 37.08 |
d95 | 95% | 62.78 |
Image Information | |
---|---|
Image Date | 2019-09-13 |
Site Type | Survey |
Specification | Longitudinal Profile |
Descriptor | LP #1 (Total) |
Position | Other |
View Direction | Other |
Image is representative of Longitudinal Profile LP #1 (Total) |
Overview information on aerial photograph base
Image Information | |
---|---|
Image Date | 2019-09-11 |
Site Type | Geomorphology |
Specification | Riffle |
Descriptor | Typical or Representative |
Position | In-Channel |
View Direction | Upstream |
Image is representative of Reach: Rock Creek (Upper) |
View from lower portion looking upstream
Image Information | |
---|---|
Image Date | 2019-09-11 |
Site Type | Survey |
Specification | Pebble Count |
Descriptor | PC #1- Existing (within reach) |
Position | In-Channel |
View Direction | Upstream |
Image is representative of Pebble Count PC #1- Existing (within reach) |
Image Information | |
---|---|
Image Date | 2019-09-11 |
Site Type | Other |
Specification | Grade Control |
Descriptor | Distinct or Unusual |
Position | In-Channel |
View Direction | Upstream |
Grade Control Structure immediately upstream of Kleinschmidt Flat Road
Benchmarks and Markers | |||||||
---|---|---|---|---|---|---|---|
Identifier | Location | Position | Created By | H.I. | Foresight | Elevation | Description |
BM #1 |
N 47° 0.7467'
W 112° 57.8682'
|
LP #1 (Lower) @
0.0
|
User Specified | NA |
NA
NA
|
1000.0
1000.0
|
Top of Benchmark
Ground @ Benchmark
|
BM #2 |
N 47° 0.238'
W 113° 0.4175'
|
LP #1 (Lower) @
5823.0
|
Measured | 977.82 |
13.4
13.4
|
964.42
964.42
|
Top of Benchmark
Ground @ Benchmark
|
Marker Position | Note | ||||||
LP #1 (Lower) @ LP 19+01 | ~ Location of slope break | ||||||
LP #1 (Total) @ LP 19+01 | ~ Location of slope break | ||||||
LP #1- (Upper) @ LP 19+01 | ~ Location of slope break |
Instrument Height & Turning Point Summary Table | |||||
---|---|---|---|---|---|
H.I. # | Instrument Height | Created By | |||
HI #1 | 1000.87 | From Benchmark BM #1 | |||
HI #2 | 995.37 | From Turning Point TP #1 | |||
HI #3 | 984.01 | From Turning Point TP #2 | |||
HI #4 | 977.82 | From Turning Point TP #3 | |||
Turning Point | Height of Instrument | Foresight Reading | T.P. Elevation | Backsight Reading | New Height of Instrument |
TP #1 | 1000.87 | 12.08 | 988.79 | 6.58 | 995.37 |
TP #2 | 995.37 | 13.66 | 981.71 | 2.3 | 984.01 |
TP #3 | 984.01 | 10.65 | 973.36 | 4.46 | 977.82 |
Longitudinal Profile Data LP #1 (Total) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Station | Position | Description | H.I. # | H.I. | Left Terrace | Left Bankfull | Left Water's Edge | Thalweg | Right Water's Edge | Right Bankfull | Right Terrace |
BM #1 | 0.00 | 1000.00 | User Specified | N.A. | |||||||
0.00 | 1000.00 | ||||||||||
LP 0+00 | 0.00 | HI #1 | 1000.87 | 3.00 | 4.70 | 3.30 | |||||
997.87 | 996.17 | 997.57 | |||||||||
LP 1+00 | 100.00 | HI #1 | 1000.87 | 4.00 | 5.90 | 2.70 | |||||
996.87 | 994.97 | 998.17 | |||||||||
LP 2+70 | 270.00 | HI #1 | 1000.87 | 6.00 | 7.20 | 6.80 | 4.40 | ||||
994.87 | 993.67 | 994.07 | 996.47 | ||||||||
LP 4+10 | 410.00 | HI #1 | 1000.87 | 6.20 | 6.90 | 8.30 | 7.90 | 6.70 | |||
994.67 | 993.97 | 992.57 | 992.97 | 994.17 | |||||||
LP 5+30 | 530.00 | HI #1 | 1000.87 | 7.50 | 8.90 | 4.50 | |||||
993.37 | 991.97 | 996.37 | |||||||||
LP 6+80 | 680.00 | HI #1 | 1000.87 | 7.90 | 9.40 | 9.90 | 9.40 | 7.70 | |||
992.97 | 991.47 | 990.97 | 991.47 | 993.17 | |||||||
LP 7+80 | 780.00 | HI #1 | 1000.87 | 8.80 | 9.60 | 10.50 | 9.80 | 7.60 | |||
992.07 | 991.27 | 990.37 | 991.07 | 993.27 | |||||||
LP 9+30 | 930.00 | HI #1 | 1000.87 | 8.60 | 10.20 | 11.40 | 10.50 | 9.60 | |||
992.27 | 990.67 | 989.47 | 990.37 | 991.27 | |||||||
LP 10+96 | 1096.00 | HI #1 | 1000.87 | 9.80 | 10.80 | 11.40 | 11.00 | 9.90 | |||
991.07 | 990.07 | 989.47 | 989.87 | 990.97 | |||||||
LP 12+46 | 1246.00 | HI #1 | 1000.87 | 11.20 | 12.30 | 12.90 | 12.10 | 10.40 | |||
989.67 | 988.57 | 987.97 | 988.77 | 990.47 | |||||||
TP #1 | HI #1 (1000.87) >> HI #2 (995.37) | ||||||||||
LP 13+76 | 1376.00 | HI #2 | 995.37 | 6.60 | 7.70 | 8.20 | 7.60 | 6.50 | |||
988.77 | 987.67 | 987.17 | 987.77 | 988.87 | |||||||
LP 15+41 | 1541.00 | HI #2 | 995.37 | 6.30 | 8.30 | 9.20 | 8.40 | 7.40 | |||
989.07 | 987.07 | 986.17 | 986.97 | 987.97 | |||||||
LP 16+46 | 1646.00 | HI #2 | 995.37 | 8.00 | 9.50 | 10.10 | 9.40 | 8.50 | |||
987.37 | 985.87 | 985.27 | 985.97 | 986.87 | |||||||
LP 19+01 | 1901.00 | HI #2 | 995.37 | 11.40 | 12.40 | 13.10 | 12.20 | 10.90 | |||
983.97 | 982.97 | 982.27 | 983.17 | 984.47 | |||||||
LP 21+51 | 2151.00 | HI #2 | 995.37 | 12.40 | 13.30 | 14.10 | 13.50 | 12.20 | |||
982.97 | 982.07 | 981.27 | 981.87 | 983.17 | |||||||
LP 23+91 | 2391.00 | HI #2 | 995.37 | 13.20 | 14.10 | 14.80 | 14.30 | 13.40 | |||
982.17 | 981.27 | 980.57 | 981.07 | 981.97 | |||||||
LP 26+51 | 2651.00 | HI #2 | 995.37 | 14.10 | 15.00 | 16.40 | 15.20 | 9.80 | |||
981.27 | 980.37 | 978.97 | 980.17 | 985.57 | |||||||
TP #2 | HI #2 (995.37) >> HI #3 (984.01) | ||||||||||
LP 27+63 | 2763.00 | HI #3 | 984.01 | 1.10 | 4.30 | 5.30 | 4.60 | 2.90 | |||
982.91 | 979.71 | 978.71 | 979.41 | 981.11 | |||||||
LP 29+63 | 2963.00 | HI #3 | 984.01 | 3.00 | 5.50 | 6.30 | 5.50 | 4.20 | |||
981.01 | 978.51 | 977.71 | 978.51 | 979.81 | |||||||
LP 32+43 | 3243.00 | HI #3 | 984.01 | 5.90 | 7.50 | 5.30 | 5.20 | ||||
978.11 | 976.51 | 978.71 | 978.81 |
Longitudinal Profile Data LP #1 (Total) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Station | Position | Description | H.I. # | H.I. | Left Terrace | Left Bankfull | Left Water's Edge | Thalweg | Right Water's Edge | Right Bankfull | Right Terrace |
LP 34+83 | 3483.00 | HI #3 | 984.01 | 6.20 | 7.60 | 8.50 | 7.30 | ||||
977.81 | 976.41 | 975.51 | 976.71 | ||||||||
LP 36+93 | 3693.00 | HI #3 | 984.01 | 6.80 | 9.10 | 8.60 | 6.90 | ||||
977.21 | 974.91 | 975.41 | 977.11 | ||||||||
LP 38+33 | 3833.00 | HI #3 | 984.01 | 4.80 | 9.30 | 9.90 | 9.50 | 7.70 | |||
979.21 | 974.71 | 974.11 | 974.51 | 976.31 | |||||||
LP 40+03 | 4003.00 | HI #3 | 984.01 | 8.80 | 9.80 | 10.60 | 9.70 | 8.60 | |||
975.21 | 974.21 | 973.41 | 974.31 | 975.41 | |||||||
LP 42+73 | 4273.00 | HI #3 | 984.01 | 9.10 | 11.50 | 9.40 | |||||
974.91 | 972.51 | 974.61 | |||||||||
LP 44+83 | 4483.00 | HI #3 | 984.01 | 10.80 | 11.70 | 12.40 | 11.70 | 10.20 | |||
973.21 | 972.31 | 971.61 | 972.31 | 973.81 | |||||||
TP #3 | HI #3 (984.01) >> HI #4 (977.82) | ||||||||||
LP 47+58 | 4758.00 | HI #4 | 977.82 | 5.20 | 6.00 | 7.00 | 6.10 | 5.70 | |||
972.62 | 971.82 | 970.82 | 971.72 | 972.12 | |||||||
LP 50+08 | 5008.00 | HI #4 | 977.82 | 6.60 | 7.90 | 7.20 | 6.50 | ||||
971.22 | 969.92 | 970.62 | 971.32 | ||||||||
LP 51+68 | 5168.00 | HI #4 | 977.82 | 7.50 | 8.30 | 8.90 | 8.25 | 6.20 | |||
970.32 | 969.52 | 968.92 | 969.57 | 971.62 | |||||||
LP 53+98 | 5398.00 | HI #4 | 977.82 | 8.40 | 9.90 | 9.50 | 8.40 | ||||
969.42 | 967.92 | 968.32 | 969.42 | ||||||||
LP 57+98 | 5798.00 | HI #4 | 977.82 | 11.20 | 14.10 | 13.00 | |||||
966.62 | 963.72 | 964.82 |