FLOOD01090

• County: Statewide
• Title: Spillway Rating and Flood Routing - Users Manual
• Date: 10/1/1966
• Prepared For: US
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Educational/Technical/Reference Information

d. For the Modified Pula Method the following values are punched
out: Time, Inflow, Outflow (average and end of period), S+ Q/2 value,
and the reservoir capacity and pool elevation.

7. OPERATDIG INSTRUCTIOBS

a. Standard Fortran II instructions are used. No sense switches
are required. Make sure the 41 standard table cards are entered after
the object deck and before the first output title card.

b. Built-in Program Checks

(1) Print "EXTEND TIlE TAIUlATER OR CAPACITY CURVES".

(2) Print "ERROR 730" - Elev. assumed is less than EIEV (1) -
EIEV-Cap. table doesn't go low enough.

(3) Print "ERROR ll717" - EIAS is greater than ELTOP - Extend
EIEV-Capacity table, increase design head assumption, or extend tail-
water table.

(4) Print "ERROR 17177" - CllMSTG is less than EIEV-cAPACITY
table - Elevations aren't low enough in table.

(5) Type "ll70" - (IID+D)/HE is less than 1.07 - (Hasn't happened

yet).

(6) Type "ll74" - Trial exceeds 100 tries on spillway submergence
(Hasn't happened yet).

(7) Type "ll75" - Approach depth is less than 10 percent of
design head.

(8) Type "ll77" - GEneral stop command - numerous items can
cause this error.

c. Camnon Mistakes in Data Preparation

(1) ELEV (1) not below starting elevation in routing.

(2) Elevation-capacity points don't extend from minimum eleva-
tion in routing to maximum elevation in routing.

,

(3) Design head assumed. was too low. The maximum elevation
the computer will canpute a discharge for is the lesser of (a) ELSPI +
1.5 x DESIID (b) EIMAX in the elev-capacity table or (c) the highest
elevation having a discharge less than "QMAX".

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