SURFACE-WATER FIELD TECHNIQUES

Moyie River at Eastport, Idaho - n = 0.038

(Source: U.S.G.S Water Supply Paper 1849)

Site Description

Reach properties

Plan sketch and cross sections

Site photos

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Site Description

• Station name	Moyie River at Eastport, Idaho
  Station number	12-3065
  Gage location	Lat 47°49'00'', long 116°11', in SE 1/4 sec. 10, T. 65 N., R. 2 E., on left bank at Eastport, 1000 ft downstream from international boundary. Section 1 is about 0.5 mile downstream from gage.
  Drainage area	570 sq mi.
  Date of flood	May 24, 1948
  Gage height	10.25 ft at gage: 20.68 ft (different datum) at section 1.
  Peak discharge	8,030 cfs
  Computed roughness coefficient	Manning n = 0.038
  Description of channel	Bed of gravel and well-rounded small boulders. Right bank is fairly steep and lined with trees and brush. Left bank slopes gently and has tree and brush cover below section 2.

  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	1,224	176	6.96	6.74	6.56	.......	.....
  2	1,090	150	7.27	7.13	7.37	269	0.73
  3	919	118	7.78	7.47	8.74	185	.68
  4	944	145	6.51	6.38	8.51	226	1.07

  Introduction Page || Site Description || Reach Properties

  Plan Sketch and Cross Sections || Site Photos

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Plan Sketch and Cross Sections

Plan and cross sections, Moyie River at Eastport, Idaho.

• Introduction Page|| Site Description || Reach Properties

  Plan Sketch and Cross Sections || Site Photos

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Site Photos

Photo 123: Downstream from right bank above section 2, Moyie River at Eastport, Idaho .

Photo 126: Downstream along left bank at section 3, Moyie River at Eastport, Idaho .

Introduction Page || Site Description || Reach Properties

Plan Sketch and Cross Sections || Site Photos

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