Fish Passage Links & Resources


Joint EWRI-AFS Fish Passage Reference Database

NEW! FishPass ListServ - Join the new fish passage forum, sponsored by the bioengineering section of the American Fisheries Society.

Fish Swimming and Performance

World Fish Center and the Food and Agriculture Organization of the United Nations


Fishbase is a Searchable relational database with information to cater to different professionals such as research scientists, fisheries managers, zoologists and many more. FishBase is available on CD and on the web containg over 28,000 fish species. Conatins data on habitat range, swim speeds, references, research photos and much more.

Bell M. 1990. Fisheries Handbook of Engineering Requirements and Biological Criteria. Third. US Army Corps of Engineers, North Pacific Division. Portland, Oregon. pp.1~1-35~7.

Baker C.O. and Votapka F.E. 1990. Fish Passage Through Culverts. USDA, Forest Service Technology and Development Center. San Dimas, CA. FHWA-FL-90-006. 67 pages.




Watershed Continuum Project

FishXing software and learning systems for the analysis of fish migration through culverts. New version with added features for hydraulic analysis of culverts and expanded biological references anticipated for Spring 2004. FishXing gives detailed profiles of hydraulic conditions and fish performance inside a variety of culvert shapes.

Flow Pro
ProSoft Apps

Flow Pro is windows based program that computes steady-state water surface profiles for many prismatic open channel shapes, including circular, rectangular, trapezoidal, triangular, U-shaped, and tubular. It handles both subcritical and supercritical flow types, and flow through weirs, orifices, and underflow gates.

Flow Pro also computes many useful flow and channel properties including critical depth and slope, hydraulic radius and wetted perimeter, normal depth, and channel roughness. It uses Manning's equation and numerical integration, and accepts both English and SI units of measure.

US Army Corps of Engineers, Hydrologic Engineering Center

The Hydrologic Engineering Center’s River Analysis System (HEC-RAS) is designed to perform one-dimensional hydraulic calculations for a full network of natural and constructed channels. HEC-RAS allows you to perform one-dimensional steady and unsteady flow calculations within a graphical user interface.

The steady flow component of the modeling system is intended for calculating water surface profiles for steady gradually varied flow. The system can handle a full network of channels, a dendritic system, or a single river reach. The steady flow component is capable of modeling subcritical, supercritical, and mixed flow regimes water surface profiles. The unsteady flow component was developed primarily for subcritical flow regime calculations.

Wildlife Crossings Toolkit

A searchable database of case histories of mitigation measures, and articles on decreasing wildlife mortality and increasing the ability of animals to cross highways.


WinXSPRO uses a resistance-equation approach (e.g., Manning's equation) to single cross-section hydraulic analysis, and is capable of analyzing both the geometry and hydraulics of a given channel cross-section. WinXSPRO was specifically developed for use in high-gradient streams and supports three alternative resistance equations for computing boundary roughness and resistance to flow. The program allows the user to subdivide the channel cross-section so that overbank areas, mid-channel islands, and high-water overflow channels may be analyzed separately. The program also allows input of variable water-surface slope so that is may be varied with discharge to reflect natural conditions.

US Geological Service

PEAKFQ is a DOS based program that performs flood-frequency analysis based on the guidelines delineated in Bulletin 17B, published by the Interagency Advisory Committee on Water Data in 1982. The program is interactive and contains the code from the WATSTORE program J407.

PEAKFQ uses the method of moments to fit the Pearson Type III distribution to the logarithms of annual flood peaks. The skew that is used may be a user-developed generalized skew for a region, from the Bulletin 17B skew map, computed from the data, or weighted between the generalized skew and station skew computed from the data. Adjustments can be made for high and low outliers and historic information. Qualification codes may be used to censor data from the analysis.

Agency and Organizational Websites

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