SURFACE-WATER FIELD TECHNIQUES

Catherine Creek near Union, Oregon - n = 0.043

---

Site Description

 

Station name	Catherine Creek near Union, Oregon
Station number	13-3200
Gage location	Lat 45°09'20'', long 117°46'40'', in SE 1/4 sec. 2, T. 5 S., R. 40 E., on right bank 3 miles downstream from Little Catherine Creek and 6 miles southeast of Union. Section 1 is about 0.75 mile downstream from gage.
Drainage area	105sq mi
Date of flood	May 27, 1948
Gage height	4.57 ft at gage: 21.21 ft (different datum) at section 1
Peak discharge	1,740 cfs
Computed roughness coefficient	Manning n = 0.043
Description of channel	Bed consists of cobbles and small boulders. Banks are lined with small trees and brush, and limbs overhang along left bank.

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

---

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	220	52	4.23	4.00	7.91	.......	.....
2	236	54	4.37	4.15	7.37	102	0.73
3	256	64	4.00	3.76	6.80	116	0.72

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

---

Plan Sketch and Cross Sections

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

---

Site Photos