SURFACE-WATER FIELD TECHNIQUES

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Mission Creek near Cashmere, Washington - n = 0.057

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Site Description

 

Station name	Mission Creek near Cashmere, Washington
Station number	12-4620
Gage location	Lat 4730'15'', long 12028'30'', in SE 1/4 NE 1/4 sec. 8, T. 23 N., R. 19 E., on right bank 1.5 miles upstream from mouth and 1.5 miles south of Cashmere. Section 1 is about 0.5 mile downstream.
Drainage area	79.1 sq mi
Date of flood	May 19, 1955
Gage height	1.73 ft at gage; 14.00 ft (different datum) at section 1
Peak discharge	123 cfs
Computed roughness coefficient	Manning n = 0.057
Description of channel	Bed angular-shaped boulders as much as 1 ft in diameter. Both banks are lined with overhanging bushes.

Introduction Page || Site Description || Reach Properties
Plan Sketch and Cross Sections || Site Photos

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Reach Properties

 

Section	Area (sq ft)	Top Width (ft.)	Mean depth (ft)	Hydraulic radius (ft)	Mean velocity (ft per sec)	Lenght (ft) between sections	Fall (ft) between sections
1	34	22	1.54	1.50	3.64	.......	.....
2	28	22	1.27	1.24	4.39	44	0.82
3	31	20.5	1.53	1.46	3.92	51	.79

Introduction Page || Site Description || Reach Properties
Plan Sketch and Cross Sections || Site Photos

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Plan Sketch and Cross Sections

Introduction Page|| Site Description || Reach Properties
Plan Sketch and Cross Sections || Site Photos

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Site Photos