Columbia and Lower Willamette River
XYZ Data and Contours
The information contained in the data files represent the results of surveys made on the dates indicated and can only be considered as indicating general conditions existing at that time.
*Please note the survey data is referenced to State Plane Coordinates North American Data 1983 (NAD 83) with sounding reference below Mean Lower Low Water (MLLW) or Columbia River Datum (CRD) where applicable in US Survey Feet.
If conversion to another Datum is needed, try this utility: http://crunch.tec.army.mil/software/corpscon/corpscon.html
*Note: Files are named by three letter codes. For corresponding charts to codes, please view the readme.
Columbia and Lower Willamette River Channel Line Data
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Columbia and Lower Willamette River Cross-Line Data
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XYZ Data | Date of Survey | XYZ Data | Date of Survey | XYZ Data | Date of Survey |
All Crosslines | Puget Island | 4/30/2008 | Kalama | 4/08/2008 | |
Lwr. Desdemona | 3/06/2008 | Wauna Driscoll | 4/02/2008 | Lwr. Martin | 4/10/2008 |
Upr. Desdemona | 3/06/2008 | Westport | 5/01/2008 | Upr. Martin | 4/02/2008 |
Flavel | 1/09/2008 | Eureka |
3/05/2008 |
St. Helens | 4/10/2008 |
Upper Sands | 1/08/2008 | Gull Island | 3/05/2008 | Warrior Rock | 4/01/2008 |
Tongue Point | 3/17/2008 | Stella Fisher | 3/06/2008 | Henrici |
3/31/2008 |
Miller Sands | 4/28/2008 | Walker Island | 3/10/2008 | Willow | 4/03/2008 |
Pillar Rock | 3/18/2008 | Slaughters | 3/11/2008 | Morgan | 3/27/2008 |
Brookfield | 3/31/2008 | Lwr. Dobelbower | 4/08/2008 | Lwr. Vancouver | 3/24/2008 |
Skamokawa | 4/29/2008 | Upr. Dobelbower | 4/08/2008 | Vancouver T.B. | 3/24/2008 |
Willamette #1 | 8/02/2005 | Willamette #2 | 8/03/2005 | Willamette #3 | 8/04/2005 |
Columbia River - Vancouver to Bonneville Dam
1 | UPPER VANCOUVER BAR | 23 April 2008 |
2 | AIRPORT BAR | 23 April 2008 |
3 | GOVERNMENT ISLAND REACH | 02 June 2008 |
4 | LADY ISLAND RANGES | 04 June 2008 |
5 | WASHOUGAL RANGES | 19 June 2008 |
6 | REED ISLAND | 24 June 2008 |
7 | CAPE HORN | 26 June 2008 |
8 | FASHION REEF | 30 June 2008 |
9 | MULTNOMAH FALLS | 1 July 2008 |
10 | WARRENDALE CHANNEL | 23 May 2007 |
11 | BONNEVILLE DAM 1:5000 | 23 May 2007 |