comparative analysis of munroe brook and headwaters of the laplatte river group a4 lindsay...
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Comparative Analysis of Comparative Analysis of Munroe Brook and Munroe Brook and
Headwaters of the LaPlatte Headwaters of the LaPlatte RiverRiver
Group A4Group A4
Lindsay Harrington, Maury Lindsay Harrington, Maury LynchLynch
Jared Nunery, Chris VanceJared Nunery, Chris Vance
MethodsMethods
Stream Geomorphic Assessment Stream Geomorphic Assessment Protocols Protocols
Phase 1 Phase 1 – Fully completedFully completed
Phase 2 Phase 2 – Rapid Habitat Assessment (RHA)Rapid Habitat Assessment (RHA)– Rapid Geomorphic Assessment Rapid Geomorphic Assessment
(RGA)(RGA)
LaPlattLaPlatte Rivere River
M18
M20
M21
MunroMunroe e BrookBrook
M2
M4
M5
Reach Comparisons -Reach Comparisons -LaPlatte M18 to Munroe LaPlatte M18 to Munroe
M2 M2
Parking Lot at bottom of M18
Runoff from Route 7 into M2
LaPlatte M18 Munroe M2
Reach Comparisons -Reach Comparisons -LaPlatte M18 to Munroe LaPlatte M18 to Munroe
M2 M2 LaPlatte M18 Munroe M2
Woody Debris and large Buffer Zone
Lack of Woody Debris in majority of M2
Reach Comparisons -Reach Comparisons -LaPlatte M20 to Munroe LaPlatte M20 to Munroe
M5 M5 LaPlatte M20 Munroe M5
Golf Course within Reach Watershed
Reach Within Golf Course – Directly impacting Stream
Reach Comparisons -Reach Comparisons -LaPlatte M20 to Munroe LaPlatte M20 to Munroe
M5 M5 LaPlatte M20 Munroe M5
Vegetated Banks and Thin Buffer
Upstream buffered area
Reach Comparisons -Reach Comparisons -LaPlatte M21 to Munroe LaPlatte M21 to Munroe
M4 M4
LaPlatte M21
Munroe M4
Reach Comparisons -Reach Comparisons -LaPlatte M21 to Munroe LaPlatte M21 to Munroe
M4 M4 LaPlatte M21 Munroe M4
Sandy Silt and gravel within the reach
Clay with some cobble and gravel in upper part
of the reach
Phase 1 - ResultsPhase 1 - Results
Stream Reach Condition Score
0
0.2
0.4
0.6
0.8
1
ATT 1-M18 ATT 2-M20 ATT 3-M21 IMP 1-M2 IMP 2-M4 IMP 3-M5
Phase 1 - ResultsPhase 1 - Results
Average Stream Condition Indices for Impaired vs. Attainment Streams
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
ATT- LaPlatte IMP- Munroe
Str
ea
m C
on
dit
ion
Ind
ex
Phase 2 - ResultsPhase 2 - Results
Habitat and Geomorphic Assessment Scores for Attainment and Impaired Streams
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
RHA RGA
Rep
ort
Sco
re
ATT
IMP
Phase 2 - ResultsPhase 2 - Results
Habitat vs. Geomorphic Scores
y = 0.7542x + 0.1076R2 = 0.6966
0.000.100.200.300.400.500.600.700.800.90
0.00 0.20 0.40 0.60 0.80 1.00
RGA
RH
A
Phase 1 Phase 2 Phase 1 Phase 2 ComparisonComparison
RGA vs. Condition Index
y = 0.2631x + 0.4935R2 = 0.1902
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
0.00 0.20 0.40 0.60 0.80 1.00
Condition Index
RG
A
Phase 1 Phase 2 Phase 1 Phase 2 ComparisonComparison
Condition Index vs. RGA Score for the LaPlatte River (ATT)
y = 0.4233x + 0.3897R2 = 0.2419
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
0.00 0.20 0.40 0.60 0.80 1.00
CI
RG
A
Condition Index vs. RGA Score for Munroe Brook (IMP)
y = -0.1401x + 0.6034R2 = 0.019
0.000.10
0.200.30
0.400.50
0.600.70
0.80
0.00 0.10 0.20 0.30 0.40 0.50 0.60
CI
RG
A
Phase 1 Phase 2Phase 1 Phase 2Total ComparisonTotal ComparisonRHA vs. Condition Index averaged for all six reaches
y = 0.4132x + 0.3579R2 = 0.5742
0.000.100.200.300.400.500.600.700.800.90
0.00 0.20 0.40 0.60 0.80 1.00
Condition Index
RH
A
Adjustment ProcessesAdjustment Processes
0
1
2
3
4
5
6
7
8
9
Report Score
Deg Agg Wide Plan
Process
Relative Impact of Adjustment Processes
ATT
IMP
AcknowledgmentsAcknowledgments
Breck BowdenBreck Bowden Bill GillBill Gill Mike Snyder Mike Snyder