I am looking to model a watershed with a reservoir. In addition to the direct precipitation runoff, the reservoir is also receiving pumped inflow from nearby wastewater facility.
The reservoir has an emergency spillway weir and also a pump discharging at a constant flow rate (apprx. 15cfs)...
I am not all to familiar with Siphon system. But just got this Dam with a primary outlet structure being a Siphon system. I have included a link that shows the siphon system. I need help modeling the system in Hydrocad. What is the Start Elevation? Break Elevation...
Any way to adjust the Stage-Discharge increment in HydroCad?
I have the outlet structures added and would like to have discharge rating for every 1-ft increment in Stage.
Any way to set the stage-Discharge increments? it appears to be set arbitrary by the program.
I am using Hydrocad 10.0.
Any way to copy or paste the Pond Stage Storage data or import the data from a text file?
It appears to only allow manual entry of the Pond stage-storage data.
HELP!
Is there an option or way to input blocked depth to represent sediments inside a pipe culvert in HEC-HMS?
I am required to use HEC-HMS for this. And the extensive system was already modeled in HEC-HMS, so i can't use other modeling tools like Hydrocad.
The idea is to model the varying...
I need some help with HEC-HMS. I am modeling a drainage area with two sub-basins in Hec-HMS. Each connect to a Reach and the two Reaches connect to a joint, and then an outfall. Using Muskingum-Cunge routing method for the Reaches.
But one reach has zero discharge even though the upstream...
I kinda feel stupid asking this question, but I can't get my head around it.
I just finished displaying a drainage pipe profile exaggerated 10 times on the vertical. No exaggeration on the Horizontal, so thats 1:1.
If my vertical is exaggerated 10 times, and I have a 20-scale border sheet...
Hi everyone,
i am newbie when it comes to hydrology and I need to obtain the hydrograph data for a small drainage area.
Here is my drainage area info:
DA = 2.5 acres
RCN = 76
Tc = 0.12 HR
I was given the following rainfall depths = 8.5 inches rain in 24-HR
I just need to get the hydrograph...
I am tasked with performing dam breach analysis of two ponds in series. That is, the ponds are nested together, right next to each other. The upstream dam outlets directly into the downstream pond.
if the upstream dam fails, the water will spill down to the downstream pond before being released...
HEC-RAS newbie here.
I am trying to create a HEC-RAS cross-section with 0 station at the center of the stream.
I draw the cross-sections in Bentley Microstation and then use inroads to export to HEC-RAS.geo file.
How do i get the cross sections so that everything left of the stream has a...
I am using Inroads Storm & Sanitary to layout my drainage network. However, when I go to compute flows using the SCS method, the "Apply" button is grayed out.
The inroads drainage.sdb file is not read only or locked in any way. I am able to click "apply" button on other screens and menus. But...
I am trying to figure out the Headwater depth of a 24" Culvert that ties into a manhole. The Q = 18.50cfs (100-yr) and dia=24" with Headwall.
What is the tailwater depth? Can I use the 100-yr HGL at the pipe end as the tailwater depth or just use the normal depth of flow?
Hi,
I am trying to find the storage volume behind a check dam on an open channel. The channel has a longitudinal slope and depth of 6-inches.
If I need to store say 100 cf of water, with a 6-in check dam, and a longitudinal slope of 0.01 ft/ft. what is the required length?
Many approaches...
