Florida Division of Forestry
Silviculture Best Management Practices
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Table of Contents

Acknowledgements

Foreword

Special Management Zones

Best Management Practices

Appendices

Glossary

 

Table B: Culvert Diameters (Inches) for Moderate Hilly Conditions
Slopes Upstream 2-10%
Stream
Stream Depth (Ft.)
Width (Ft.)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
1
12
21
-
-
-
-
-
-
2
15
27
36
48
-
-
-
-
3
18
33
42
54/
2-42
54
3-54/
4-42
-
-
4
21
36
48
2-48/
3-36
3-48/
4-42
4-48
*
-
5
27
42
54
2-48/
3-42
3-48/
4-42
4-54
*
*
6
30
42
60
2-54/
3-42
4-48
*
*
*
7
30
48
60
3-48/
4-42
4-54
*
*
*
8
33
54
2-54/
3-48
3-54/
4-48
4-54
*
*
*
9
36
54
2-54/
3-48
3-54/
4-48
*
*
*
*
10
42
60
3-48/
4-42
4-54
*
*
*
*
    * Where flows were determined to cause the culvert size to exceed four 60-inch pipes, no size is provided. This table provides for most temporary installations in Northwest Florida. For larger sizes of channels bridge works may prove more economical.
Silviculture Best Management Practices 78