Preliminary Assessment of Streamflow Requirements for Habitat
Protection for Selected Sites on the Assabet and Charles Rivers,
Eastern Massachusetts
U.S. Geological Survey Open-File Report 02-340
CONTENTS
Abstract
Introduction
Purpose and Scope
Description of Study
Area
Acknowledgments
Methods for Determining Streamflow
Requirements for Habitat Protection
R2Cross Method
Wetted-Perimeter Method
Water-Surface-Profile Modeling
Preliminary Streamflow Requirements
for Habitat Protection
Danforth Brook at
Hudson
Great Brook near Bolton
Elizabeth Brook near
Stow
Mine Brook near Franklin
Charles River at Medway
Comparison of Streamflow Requirements
and Methods
Summary and Conclusions
References Cited
FIGURES
- Map showing location of habitat-assessment
riffle reaches in and five streamgaging stations near the Assabet River and
Charles River Basins, Massachusetts
- Diagram showing (A) stream channel for
River Station 173.65 and (B) relation between wetted perimeter and discharge
at Mine Brook near Franklin
3-7. Photograph showing:
- Danforth Brook at Hudson, looking
upstream
- Great Brook near Bolton, looking upstream
- Elizabeth Brook near Stow, looking
downstream
- Mine Brook near Franklin, looking downstream
- Charles River at Medway, looking downstream.
Photo (A) is of the upstream riffle and (B) is of the downstream riffle study
reach
- Box plots showing distribution of streamflow
requirements determined by R2Cross and Wetted-Perimeter methods
- Graph showing daily discharge for the
streamgaging station at Nashoba Brook near Acton (01097300) for the period
1963 to 2001 compared to median streamflow requirements estimated by the R2Cross
and Wetted-Perimeter methods, Assabet and Charles Rivers
- Box plots showing distribution of mean
monthly discharges for the period 1969-98 for streamgaging stations 01096000,
01097300, 01105600, 01111500, and 01175670 compared with median streamflow
requirements estimated by the R2Cross and Wetted-Perimeter methods for five
riffles in the Assabet and Charles River Basins
TABLES
- Location and characteristics of riffle
reaches, Assabet and Charles Rivers, Massachusetts
- R2Cross hydraulic criteria for protection
of aquatic habitat
- Required streamflows for habitat
protection determined by means of the R2Cross method
- Required streamflows for habitat
protection determined by means of the Wetted-Perimeter method
- Summary of R2Cross and Wetted-Perimeter
method streamflow requirements for five riffle sites, Assabet and Charles
Rivers
- Indicators of Hydrologic Alteration
for the 1969 to 1998 period for the streamgaging station at Nashoba Brook
near Acton (01097300)
- Median streamflow requirements estimated
by the Tennant technique from the combined records of streamgaging stations
01096000, 01097300, 01105600, 01111500, and 01175670
- Hydraulic variables simulated by the HEC-RAS
model for Danforth Brook at Hudson
- Hydraulic variables simulated by the HEC-RAS
model for Great Brook near Bolton
- Hydraulic variables simulated by the HEC-RAS
model for Elizabeth Brook near Stow Table
- Hydraulic variables simulated by the HEC-RAS
model for Mine Brook near Franklin
- Hydraulic variables simulated by the HEC-RAS
model for Charles River at Medway
CONVERSION FACTORS AND VERTICAL DATUM
CONVERSION FACTORS
| Multiply |
By |
To obtain |
| |
| cubic
foot per second (ft3/s) |
0 |
.02832 |
cubic meter per second
(m3/s) |
| cubic
foot per second per square mile (ft3/s/mi2) |
0 |
.01093 |
cubic meter per second
per square kilometer (m3/s/km2) |
| foot
(ft) |
0 |
.3048
|
meter (m) |
| foot
per second (ft/s) |
0 |
.3048
|
meter per second
(m/s) |
| mile
(mi) |
1 |
.609
|
kilometer (km) |
| square
foot (ft2) |
0 |
.09290 |
square meter (m2) |
| square
mile (mi2) |
259 |
|
hectare |
| square
mile (mi2) |
2 |
.590 |
square kilometer
(km2) |
VERTICAL DATUM
Datum: Local datums used in this report were arbitrarily set at the time
of the fieldwork and are not referenced to any National Geodetic Vertical
Datum.
|
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