FLOOD10359 ‎(2)‎

• County: Delta
• Community: Delta County
• Stream Name: Minnesota Creek
• Title: Supplemental 100 Year Flood Study for Minnesota Creek
• Date: 9/1/2002
• Prepared For: Delta County
• Prepared By: Buckhorn Geotech
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Errors Warnings and Notes for Plan: Plan 01

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Location: River: minnesota Reach: 1 RS: 17840 Profile: PF 1
Warning: The energy equation could not be balanced within the specified number of iterations. The program
used critical depth for the water surface and continued on with the calculations.
Warning: The energy loss was greater than 1.0 ft (0,3 m). between the current and previous cross section.
This may indicate the need for additional cross sections.
Location: River: minnesota Reach: 1 RS: 17663.7" Profile: PF 1
Warning: The velocity head has changed by more than 0.5 ft (0,15 m), This may indicate the need for
additional cross sections.
Warning: The energy loss was greater than 1,0 ft (0.3 m). between the current and previous cross section.
This may indicate the need for additional cross sections.
Location: River: minnesota Reach: 1 RS: 17487.5" Profile: PF 1
Warning: The velocity head has changed by more than 0.5 ft (0.15 m), This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7
or greater than 1.4, This may indicate the need for additional cross sections.
Note: Hydraulic jump has occurred between this cross section and the previous upstream section.
Location: River: minnesota Reach: 1 RS: 17311.2" Profile: PF 1
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7
or greater than 1.4. This may indicate the need for additional cross sections.
Location: River: minnesota Reach: 1 RS: 17135 Profile: PF 1
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7
or greater than 1.4. This may indicate the need for additional cross sections,
Location: River: minnesota Reach: 1 RS: 16869 Profile: PF 1 Culv: Culvert #3
Note: Culvert critical depth exceeds the height of the culvert.
Note: During the supercritical calculations a hydraulic jump occurred inside of the culvert.
Note: The culvert inlet is submerged and the culvert flows full over part or all of its length. Therefore, the
culvert inlet equations are not valid and the supercritical result has been discarded. The outlet
answer will be used.
Location: River: minnesota Reach: 1 RS: 16847 Profile: PF 1
Warning: The energy equation could not be balanced within the specified number of iterations. The program
used critical depth for the water surface and continued on with the calculations.
Warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section.
This may indicate the need for additional cross sections.
Warning: During the standard step iterations, when the assumed water surface was set equal to critical depth,
the calculated water surface came back below critical depth. This indicates that there is not a valid
subcritical answer. The program defaulted to critical depth.
Location: River: minnesota Reach: 1 RS: 16683.6" Profile: PF 1
Warning: The velocity head has changed by more than 0.5 ft (0,15 m). This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7
or greater than 1.4. This may indicate the need for additional cross sections.
Waming: The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section.
This may indicate the need for additional cross sections.
Location: River: minnesota Reach: 1 RS: 16520.3" Profile: PF 1
Warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section.
This may indicate the need for additional cross sections.
Location: River: minnesota Reach: 1 RS: 16357 Profile: PF 1
Warning: The velocity head has changed by more than 0,5 ft (0.15 m), This may indicate the need for
additional cross sections.
Warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section.
This may indicate the need for additional cross sections.
Location: River: minnesota Reach: 1 RS: 16145,3" Profile: PF 1
Warning: The energy equation could not be balanced within the specified number of iterations, The program

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