 |
|
|
|
|
|
|
|
 |
 |
||||||
 |
 |
 |
 |
 |
 |
|
|
 |
|
||||||
analysis for better flow
spring creek
Ellis County, TeXas
Walter P Moore designed a bridge along Arrington Road over Spring Creek. The project required coordination with the Federal Emergency Management Agency and the city’s floodplain administrator as it crossed a FEMA-designated flood plain.
We performed a hydraulic analysis to comply with TxDOT design criteria using a hydrologic model developed using HEC-HMS and GIS data. Hydraulic analyses for the bridge were performed using HEC-RAS and met both TxDOT and FEMA standards. All hydraulics were modeled first under unsteady state flow conditions.
From the unsteady state analysis the inflow and outflow of the detention basin through two overflow weirs were calculated for input into the steady state analysis. A new floodplain map was produced from the proposed conditions that included ultimate development of the watershed. The proposed floodplain map will be used for a future LOMR.
RELATED SERVICES |
Addressing double standards |
 |
North and South Taking a closer look |
 |
Analysis for better flow |
|
 |
Keeping the flow flowing |
|
|
