Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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1. AGENCY USE ONLY (Leave blank)
2. REPORT DATE
3. REPORT TYPE AND DATES COVERED
April 1995
4. TITLE AND SUBTITLE
5. FUNDING NUMBERS
Ice Jam Flood Assessment for the St. John River Basin,
Aroostook County, Maine
6. AUTHORS
James L. Wuebben, David S. Deck, Jon E. Zufelt and Jean-Claude Tatinclaux
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION
REPORT NUMBER
U.S. Army Cold Regions Research and Engineering Laboratory
72 Lyme Road
Special Report 95-15
Hanover, New Hampshire 03755-1290
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSORING/MONITORING
AGENCY REPORT NUMBER
U.S. Army Engineer Division, New England
Waltham, Massachusetts
11. SUPPLEMENTARY NOTES
12a. DISTRIBUTION/AVAILABILITY STATEMENT
12b. DISTRIBUTION CODE
Approved for public release; distribution is unlimited.
Available from NTIS, Springfield, Virginia 22161.
13. ABSTRACT (Maximum 200 words)
Ice jams occur almost every year on the Aroostook and St. John rivers in northern Maine. While most of these
jams cause minor flooding or no flooding at all, ice jams have caused severe flooding six times in the last 20
years. In 1991 ice jams on the St. John River caused damage estimated at million. This report reviews field
observations of the ice regime on the rivers and discusses possible mitigation measures--ice retention structures,
channel modifications and early warning systems. In addition, since the 1991 ice jam caused water levels to rise
so quickly that people were stranded in their homes, the development and installation of an ice jam motion
detection system is described. To aid in early warning, a system to predict the potential for ice jams and their
severity that is based on a correlation of hydro-meteorological data with the ice regime is presented.
14. SUBJECT TERMS
15. NUMBER OF PAGES
30
Channel modifications
Ice control
Ice prediction
Early warning
Ice jam
Ice retention
16. PRICE CODE
Ice jam mitigation
Rivers
17. SECURITY CLASSIFICATION
18. SECURITY CLASSIFICATION
19. SECURITY CLASSIFICATION
20. LIMITATION OF ABSTRACT
OF REPORT
OF THIS PAGE
OF ABSTRACT
UNCLASSIFIED
UNCLASSIFIED
UNCLASSIFIED
UL
Standard Form 298 (Rev. 2-89)
NSN 7540-01-280-5500
Prescribed by ANSI Std. Z39-18
298-102
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