Historic Ives Island Map of Salmon Redds


2002 Salmon Redd Locations

2001 Salmon Redd Locations

Redds are the nests that salmon (and other fish) lay eggs in. Here's a spawning area below Bonneville Dam with redds observed using a Global Positioning System (GPS) unit by ODFW and WDFW. The GPS points have been differentially corrected. Keep in mind these redds are observed by wading and boating surveys, in which visibility can be limited. This map of redds represents a subset of the total number of redds in the area. Note that Hamilton Creek redds are not show as USFWS conducts those surveys.

2000 Salmon Redd Locations

Here's a spawning area below Bonneville Dam with redds observed using a Global Positioning System (GPS) unit by ODFW and WDFW personnel through Dec 24th, 2000.The GPS points have been differentially corrected. The two gages are provided and operated by USFWS and are denoted by two Yellow/Orange markers on the maps below and provide the real-time flow and temperature data,up-dated every two hours, found at the FPC website. Gage 1 is three-tenths of a foot underground, at reading of .3 and lower, the area is actually dry gravel. Scale of the base map is 1:24,000. Keep in mind these redds are observed by wading and boating surveys, in which visibility can be limited. This map of redds represents a subset of the total number of redds in the area.

1999 Salmon Redd Locations>

These 1999 redds below were observed using a Global Positioning System unit by USFWS, WDFW, and ODFW personnel through November 2, 1999. FPC staff took pictures of salmon spawning around gage 2 on 11/2/99. This map of redds represents a subset of the total number of redds in the area.

1998 Salmon Redd Locations

These redds were counted by WDFW personnel. The total redd count was 195+/-.

Below is an aerial photograph of Ives Island during a low water year. The lighter white areas around the island are exposed gravel and show the amount of river bed inaccessible to spawning salmon.

Aerial View: Low Water Year



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Page last updated on: September 3, 2008

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