Watershed Analysis and Debris Basin Flood Mapping of Rudd ...

Watershed Analysis And Debris Basin Flood Mapping Of Rudd -ppt Download

  • Date:05 Aug 2020
  • Views:17
  • Downloads:0
  • Size:7.50 MB

Share Presentation : Watershed Analysis And Debris Basin Flood Mapping Of Rudd

Download and Preview : Watershed Analysis And Debris Basin Flood Mapping Of Rudd

Report CopyRight/DMCA Form For : Watershed Analysis And Debris Basin Flood Mapping Of Rudd


Watershed Analysis Detention BasinFlood Routing and Outflow Path Analysisof Rudd Creek Drainage Farmington UtahProject Location.
Cristina Nelson Term Project CEE 6440 Fall 2007 Rudd CreekDetention Basin Background The Rudd Creek canyon outlet is in.
a residential area on the East benchof Farmington City In 1983 a large flood and debris flowdestroyed 35 homes causing 3million dollars in damages .
In 1984 an emergency detentionbasin was built at the canyon mouth Berms were built along some roads and new development in the areawas restricted .
Recently Farmington City has beenasked to open development for landparcels near the canyon mouth City officials believe the Basin willovertop in the 100 year storm .
Objectives Study the Rudd Creek watershed and the detention basin todetermine the100 year flood and if the Basin will overtop Also makepreliminary flood plain estimates for the undeveloped Land Methods Delineate Watershed Calculate 100 Year Maximum Flow Rates.
Create Basin Flood Routing Model Determine if Basin will Overtop in 100 year flood Detention Basin maximum outflow rate and drainage paths GIS Data Sources 5 meter resolution DEM AGRC .
1 ft Orthophotographic image AGRC GIS Analysis Terrain Analysis Watershed delineation Spatial Analyst Slope analysis.
Statistics and Histograms Hill shade Networks Length and weighted Slope of Longest flow path Arc Hydro 9 Tools .
Terrain Analysis Trim DEM to Study Area Extract by Mask 5 meter DEM reconditioning fill sinks burn in streets .
Flow Directions Flow Accumulation Stream Definition segmentation Catchment Delineation andprocessing.
Drainline Processing Watershed Delineation Batch Point Watershed Delineation At Detention Basin Results Drainage area 0 77 mi2 Weighted Average Watershed Slope 42 .
Weighted Average Stream Slope 46 6 Longest drainage Path 13 287 ft long 100 Year Flood EventRational method Qmax CiA I is the rainfall intensity IDF Curves .
A is the drainage area 0 77 square miles Where C is the runoff coefficient C is usually determined from land cover tables This approach does not work well for steep mountain watersheds Less infiltration times on steeper slopes leads to greater C values.
C is primarily a function of Slope at slopes greater 10 Rudd Creek watershed is too steep 42 average slope Runoff CoefficientResearch Paper Rational Coefficients for Steeply Sloped Watersheds .
Cutter McCuen 2007 Where Co is the runoff coefficient at a 6 slope S is the Slope n is the manning s valueSlope function in the Spatial Analysis was used to create a.
histogram of slopes classes versus area Runoff CoefficientSlopeSlopeClassClass HistogramCELL COUNT.
0 001220703125 0 5 1 5 5 10 10 15 15 20 20 25 25 30 30 35 35 40 40 45 45 50 50 55 55 60 60 65 65 70 100 150 200 210Slope ClassesSlope ClassesUsed slope class histogram to calculate a weighted average C for the watershed Intensity.
Intensity was determined from Farmington City Engineer sIDF Curves Frequency 100 year storm Duration is equal to the time of concentration Tc Tc was calculated from longest drainage path length slope andestimated channel characteristics to be used in Manning s Equation .
Overland Flow Rainfall Intensity Duration Frequency Curve Farmington UtahChannel FlowIntesity in hr Tc Tt Tt1 10 100 1000 10000.
Duration minutes Tc 15 min 2 Year Event 10 Year Event 100 Year EventI 3 68 in hr Qmax CIA 1 200 cfs Detention Basin Flood Routing ModelModel Applied using Step Method in a Spreadsheet.
Basin Influent Qmax 1 200cfs Estimated influent hydrograph Detention capacity 14 acft Depth as a function of Storage equation Model Outlet structures to determine Outflow hydrograph Low level outlet pipe Capacity 50 cfs piped to the river Emergency overflow spillway capacity 1000 cfs modeled as a weir with.
known spillway dimensions Detention Basin Flood RoutingPeak Outflow 1400inflow hydrographOutflow hydrograph.
Q Pipe 50 cfs 1200Q Spillway 880 cfs 800Q Total 930 cfs 600Thus Basinembankment is not.
overtopped in 100 00 1000 2000 3000 4000 5000year storm Time s Flood Mapping Need more detailed DEM and surveyed cross.
section to create a HEC RAS based Flood Map For the purpose of this project simplisticmethods were used to estimate the flow path ofthe discharge out of the emergency spillway toFarmington Creek.
5 meter DEM Streets and other known smaller flow paths burnedinto DEM With AGREE DEM reconditioning Flow path Tracing Conclusions and Recommendations.
Watershed 100 year flow Q 1200 cfs Max basin outflow Qout 930 cfs Basin will not be overtopped in 100 year event Some of the undeveloped area is effected by the flowpath predictions .
The area may be able to opened for development if aBerm is created to contain flow to the streets near 500North and Main Street More accurate flood plain mapping data andanalysis is still needed .
Better estimates of the shape of the Basin s influenthydrograph could be made by studying adjacentwatersheds Questions .
GIS Analysis Terrain Analysis - Watershed delineation Spatial Analyst Slope analysis Statistics and Histograms Hill shade Networks Length and weighted Slope of Longest flow path 5 meter resolution DEM (AGRC) 1 ft Orthophotographic image (AGRC) GIS Data Sources Arc-Hydro 9 Tools: Terrain Analysis Trim DEM to Study Area (Extract by Mask) 5 meter ...

Recent Views:

Related Presentations

Water Quality Monitoring in the Upper Illinois River Watershed and Upper White River Basin

Collect water samples at ~20 sites to estimate constituent loads and evaluate trends in water chemistry, Upper Illinois River Watershed (UIRW) and Upper White River Basin (UWRB). Collect water samples across eight streams to measure E. coli and evaluated numbers against applicable water quality standards, UIRW. 3.

2 Views0 Downloads

Watershed Scale Hydrogeologic Analysis and Paleohydrologic

ACKNOWLEDGEMENTS National Science Foundation Biocomplexity Grant #0119981 “Coupled Human/Ecosystems Over Long Periods, Mesa Verde Region Prehispanic Ecodynamics” Dr. Timothy Kohler – PI Dr. Kenneth Kolm - Co-PI Dr. Robert G. Reynolds - Co-PI Dr. Mark Varien - Co-PI RESEARCH PURPOSE AND OBJECTIVES Perform hierarchical analysis of ...

2 Views0 Downloads

Comets Asteroids Meteors and Other Debris

There are lots of reasons why people believe weird things (to use Michael Schermer’s book title), but here are a few notions. The lecture has several purposes. The fantastic beliefs began soon after habitation of the Americas, and in the Midwest, not long after the first Euroamerican settlers arrived.

13 Views0 Downloads

Basin analysis efficient resource identification and utilization and unlocking new resources

Combined fundamental insight in chemistry, electrochemistry and materials science, as well as process engineering, is required to. develop new, largely improved gas separation solutions in a CCS/CCUS (and EOR with CO2 injection) process scheme.

0 Views0 Downloads

Statistical Analysis of BMP Effectiveness at the Watershed

Qual. 34: 1087-1101, May/June 2005. R-Farm Analysis Automated data collection installed 1993 BMPs installed 6/95-10/96 Statistical analysis of BMP effectiveness Bishop et al. 2005. Journal of Environmental Quality Variability in Event Flows Bishop et al. 2005.

15 Views0 Downloads

Disposing of Digital Debris George Mason University

Bush in 1940 as Chairman of the revised National Defense Research Committee (NDRC), and later Director of OSRD, he coordinated the activities of some 6,000 leading American scientists in the application of science to warfare. Bush . was a well-known policymaker and public intellectual during World War II, where . he was in effect the

18 Views0 Downloads

Disposing of Digital Debris

The first microprocessor. Intel introduces the first microprocessor, the Intel 4004 on Nov, 1971. The first personal . computers. In 1975, Ed Roberts. coined the term "personal computer" when he introduced the . ... The computer used the Intel 8008 processor and sold for $1,750 in 1973.

9 Views0 Downloads


Samudra dumping, tumpahan kontainer disengaja, dan ditiup angin TPA sampah- semua berkontribusi terhadap masalah ini. Berbagai limbah padat yang berasal dari manusia ♥ Dibuang setiap hari ke dalam lingkungan laut dan pesisir atau mencapai laut melalui sungai dan sumber-sumber lain yang berbasis lahan.

10 Views0 Downloads

TRB Debris Management Handbook

The handbook is applicable to a wide variety of users that routinely encounter debris clearance, control, or removal issues. It is also attractive to academic research bodies like the National Academies of Science (NAS), and more specifically TRB, to conduct further research on specific areas outlined in the handbook.

23 Views0 Downloads

Laser Ablation for Orbital Debris Reduction

1 / 4 * ~ 1 / 2 * <1, or ~ 10% of car / car. But that is from cubesats weighing only 0.1-0.5% as much as typical cars. Do cubesats have a right to create 20-100X as much shrapnel per kg as cars? Note that typical collision-made hubcaps are ~ 0.1 kg, and cannot shred cars. Now compare cubesatsin lower orbits (as most are): 1.

12 Views0 Downloads

Cubesat Debris Impact Threats 2015 Spring Cubesat Workshop

telescope pairs, and/or space telescopes. Maintaining a shrapnel catalog requires a distributed, coordinated, full-time system. But discovery + first-pass initial orbit estimates can be opportunistic. Discoverers might be paid bounties for each new faint object found and its orbit estimated, if it is recovered and tracked by the network.

1 Views0 Downloads

Implementation of an interactive database interface utilizing HTML5 PHP and MySQL in support of water quality assessments in the Northeastern North Carolina Pasquotank Watershed

PHP. MySQL. XML. JavaScript. PHP. INTRODUCTION: PHP, or PHP Hypertext Preprocessor, is an open source scripting language that is tailored for use in website development and can be included within HTML. It is similar to asking the server a math question and receiving the answer in return without the server revealing how the answer was reached.

3 Views0 Downloads