THE ULTIMATE FOREST HYDROLOGY TOOLS ...
Useful tools for various hydrologic calculations
Document: Estimating Design Floods for Forest Roads in British Columbia
Excerpt ...
The Forest Practice Code of British Columbia specifies that bridges and culverts for permanent
forest roads shall be designed for Q100, the 100 year instantaneous peak flood. For culverts, the
peak water level must be no higher than the top of the culvert. This is quite conservative and,
presumably, it is intended to allow for sediment and floating debris that are difficult to take into
account explicitly. If Q100 actually were to occur on a stream, probably all of the culverts on it and
most of the bridges over it would fail. It is important that designers consider the consequences of
failure to both the road link and to the environment and design their stream crossings to minimize
the adverse effects of failure, in addition to the requirement that they be able to carry Q100.
This document includes ...
- overview of current standard methods
- recommendations for measuring peak flows
- Summary of Steps in estimating Q100
- example
View this document ...
InfoFlip Flipchart: Forest Road Drainage Installation Practices in the Pacific Northwest
This online InfoFlip "flipchart" is meant to assist in the selection of appropriate sites and types of drainage structures, and guide construction during structure installations.
Java applet: Flow Calculator
NOTES: this Java applet is now in alpha. If you don't know what it
does, there should soon be documentation. - Travis
Values for flush and projecting inlets need to be corrected--I
have to check the correction factor. I should still comment the
source, and maybe add some exception handling.
This Java applet has been known to cause some browsers to crash.
Java applet: Calculating Laminar and Turbulent Flow
NOTE: this Java applet has been known to cause some browsers to crash.
InfoFlip Flipchart: Forest Road Drainage Installation Practices in the Pacific Northwest
This online InfoFlip "flipchart" is meant to assist machine operators and supervisors in the task of completing deactivation of forest roads.
