APPENDIX D.2 

 FIELD NOTES AND MANNING’S N 

EVALUATION SHEETS 

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NATURAL OVERBANK ROUGHNESS COEFFICIENT PHOTOGRAPHS

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Photo D2.1.  Looking upstream at heavily‐wooded portion of Boulder Creek left overbank from ~500 feet upstream of Goose Creek confluence. 

Photo D2.2.  Looking upstream at heavily‐wooded portion of Boulder Creek left overbank from ~500 feet upstream of Goose Creek confluence. 

CITY OF BOULDER, COLORADO BOULDER CREEK FLOOD MAPPING STUDY

NATURAL OVERBANK ROUGHNESS COEFFICIENT PHOTOGRAPHS

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Photo D2.3.  Looking upstream at open portion of Boulder Creek left overbank from sharp bend in trail upstream of Goose Creek confluence. 

Photo D2.4.  Looking downstream at heavily‐wooded portion of Boulder Creek right overbank from the BNRR embankment. 

CITY OF BOULDER, COLORADO BOULDER CREEK FLOOD MAPPING STUDY

NATURAL OVERBANK ROUGHNESS COEFFICIENT PHOTOGRAPHS

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Photo D2.5.  Looking downstream at heavily‐wooded portion of Boulder Creek right overbank from the BNRR embankment. 

Photo D2.6.  Looking downstream at open portion of Boulder Creek right overbank from the BNRR embankment. 

CITY OF BOULDER, COLORADO BOULDER CREEK FLOOD MAPPING STUDY

NATURAL OVERBANK ROUGHNESS COEFFICIENT PHOTOGRAPHS

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Photo D2.7.  Looking upstream from 48th Street at the right overbank of Boulder Creek downstream of Foothills Parkway. 

Photo D2.8.  Looking downstream from Valmont Street at the right overbank of Boulder Creek.