1987-03-27_REVISION - C1981038 ‎(6)‎

• Permit No: C1981038
• IBM Index Class Name: Revision
• Doc Date: 3/27/1987
• Doc Name: DELETE
• From: COLO WESTMORELAND INC
• To: MLRD
• Type & Sequence: TR4
• Media Type: D
• Archive: No

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•
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~~16e r -e,ooo 1055 COEFFICIENT Ke
FOR VARIOUS ENTRANCE 141
- 116 i - 6.0~ TYPES 6.
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144 • 000 NW ENTQANCf 0 8.
I SCAIE COEFFICIENT .
132 I 1,000 D iyPE
~ 6.
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`
120 u "[°^le•m:np re l.Il
J 5.
O 2,000 ew 4
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o 30 Dipm. lDl• 48in 411 n Q~ 9
l6 0.70113/4ac v 0.9
33 20 ____________ 0 0.8 0.8
3[el. NW XW =
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IS -- -_ ___- D3 -
l 1.0 _ D'3
HEADWATER DEPTH FOR
-- '2 ~ CORRUGATED STEEL PIPE CULVERTS
WITH INLET CONTROL
FHWA HEC 5
Goider
Associates
Flgure 448 Inlel control nomograph for corrugated steel pipe culverts. The manu-
• lecturers recommended keeping HWID to a maximum of 1.5 and preferably to no
more than 1.0.