National River Restoration Science Synthesis (NRRSS) Statistics Page for District of Columbia

National River Restoration Science Synthesis (NRRSS)
River Restoration in our Nation: A Scientific Synthesis to Inform Policy, Grassroots Actions, and Future Research

National River Restoration Science Synthesis (NRRSS) Statistics Page for District of Columbia
Statistics for March 28, 2006

Cost Information for NRRSS Records (with cost values) for District of Columbia

Number
of
Projects

51

Projects
with
Cost
Values

16

Total
Costs

$21,804,123.00

% with
Cost

31

Minimum
Cost

$165.00

Maximum
Cost

$17,144,000.00

Median
Cost

$248,388.50

% with
Monitoring

7

% with
Project
Contact

17

Mean
Cost

$1,362,757.69

Upper 95%
Confidence
Interval
Value

$7,029,997.35

Standard
Deviation

4089126.115608

Project Intent Information for District of Columbia

Project
Intent

Aesthetics/Recreation/Education
Bank Stabilization
Channel Reconfiguration
Dam Removal/Retrofit
Fish Passage
Floodplain Reconnection
Flow Modification
In-stream Habitat Improvement
In-stream Species Management
Land Acquisition
Riparian Management
Stormwater Management
Water Quality Management
Other

Number
of
Projects

29
4
0
1
3
0
0
3
2
0
3
4
6
0

Projects
with
Cost
Values

0
3
0
0
0
0
0
3
2
0
0
3
4
0

Total
Costs

$0.00
$1,531,800.00
$0.00
$0.00
$0.00
$0.00
$0.00
$1,090,236.00
$141,084.00
$0.00
$0.00
$930,394.00
$2,030,559.00
$0.00

% with
Cost

0
75
0
0
0
0
0
100
100
0
0
75
66
0

Minimum
Cost

$0.00
$20,000.00
$0.00
$0.00
$0.00
$0.00
$0.00
$10,000.00
$21,084.00
$0.00
$0.00
$213,594.00
$165.00
$0.00

Maximum
Cost

$0.00
$1,400,000.00
$0.00
$0.00
$0.00
$0.00
$0.00
$759,700.00
$120,000.00
$0.00
$0.00
$416,800.00
$1,400,000.00
$0.00

Median
Cost

$0.00
$111,800.00
$0.00
$0.00
$0.00
$0.00
$0.00
$320,536.00
$70,542.00
$0.00
$0.00
$300,000.00
$315,197.00
$0.00

% with
Monitoring

0
0
0
100
100
0
0
0
0
0
0
0
16
0

% with
Project
Contact

6
25
0
0
0
0
0
66
0
0
0
50
83
0

Mean
Cost

$0.00
$510,600.00
$0.00
$0.00
$0.00
$0.00
$0.00
$363,412.00
$70,542.00
$0.00
$0.00
$310,131.33
$507,639.75
$0.00

Upper 95%
Confidence
Interval
Value

N/A
$1,383,758.24
N/A
N/A
N/A
N/A
N/A
$789,670.75
$139,087.29
N/A
N/A
$425,533.85
$1,250,293.62
N/A

Standard
Deviation

N/A
630016.444230
N/A
N/A
N/A
N/A
N/A
307561.685988
49458.000000
N/A
N/A
83267.250646
535852.638545
N/A

Note: Some NRRSS Records may have more than one Project Intent selected.
Total number of NRRSS records with one or more Project Intent values for District of Columbia is: 47
Total number of NRRSS records with no Project Intent values for District of Columbia is: 4
Percentage of NRRSS records with no Project Intent values for District of Columbia is: 7%

Project Information by Year of Completion for District of Columbia

Year of
Completion

1994
1995
1997
2000
2001
2002
2003

Number of
Projects

1
2
2
1
18
12
5

% with
Cost

100
0
50
100
22
8
40

Minimum
Cost

$1,400,000.00
$0.00
$759,700.00
$10,000.00
$21,084.00
$120,000.00
$20,000.00

Maximum
Cost

$1,400,000.00
$0.00
$759,700.00
$10,000.00
$485,761.00
$120,000.00
$213,594.00

Median
Cost

$1,400,000.00
$0.00
$759,700.00
$10,000.00
$301,859.50
$120,000.00
$116,797.00

% with
Monitoring

0
100
50
0
0
0
0

% with
Project
Contact

100
0
50
0
22
0
20

Note: Some of the categories for each year may have incomplete information available.

Number of Projects with the Number of Intent Categories for District of Columbia

# of Intent Categories

1
2
3
4
5
6
7
8
9
10
11
12
13
14

# Projects

40
6
1
0
0
0
0
0
0
0
0
0
0
0

    Note: Not all NRRSS records have a project intent number selected.
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    NRRSS comments, questions: Emily S. Bernhardt     Web page and database contact: Bruce Powell

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   Creation date: Tue Mar 28 05:22:43 MST 2006