Description: This layer includes completed and in-progress studies (see Status column) managed by the Stormwater Division. If completed, the link to the study is included in the Study_Link column. This layer includes different study types ( see Study_Type column). The Open Channel studies were focused on the FEMA floodplain area vs. on localized storm drain/neighborhood flooding, however, the study boundaries for the Open Channel studies include the entire drainage area.
Value: Central Meadowbrook Neighborhood Drainage Study (Fosdic Lake) Label: Central Meadowbrook Neighborhood Drainage Study (Fosdic Lake) Description: N/A Symbol:
Value: Central Meadowbrook Neighborhood Drainage Study (Meadowbrook) Label: Central Meadowbrook Neighborhood Drainage Study (Meadowbrook) Description: N/A Symbol:
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Description: Pipe Capacity was determined using basic pipe segment geometry data (shape, size, material type) where available. Pipe length was derived from GIS. Pipes with missing or invalid physical data for material, length, etc. were not analyzed. Pipes with missing of invalid qualitative data (i.e.: unrealistic pipe capacity values during the calculation steps) were reassigned to the worst case scenario within an acceptable range. Upstream and downstream elevation was determined from surface terrain provided slope. Manning’s n-value was taken from the iSWM table of values. This information was used to calculate Area, Wetted Perimeter, and Hydraulic Radius and the Manning’s Equation used to calculate Pipe Capacity (cfs). For cases that might indicate multiple barrels or parallel pipes, a coefficient was assigned by hand based on review of available data such as plans, maps, or Google Streetview. The coefficient represents the portion of the flow taken by each pipe. For example, if there are parallel 10” pipes, then each gets coefficient 0.5 while if there is a 12” and an 8” then they are assigned 0.6 and 0.4, respectively. The flow accumulation grid provided the contributing upstream drainage area. The flow accumulation grid was developed by Halff for the city from a variety of sources of “best available data” (terrain data). Pipe Capacity (cfs) / Drainage Area (acres) yields Inches/hourPipe capacity for a given area (Drainage Area) provides a pipe description in terms of inches per hour, which relates directly to rainfall intensities. In GIS, a bisect function is used to rank the results for each pipe segment into the following breakpoints:Grade F, 1.36 in/hr, 1 year return periodGrade D, 2.19 in/hr, 1-5 year return periodGrade C, 3.02 in/hr, 5-25 year return periodGrade B, 3.4 in/hr, 25-50 year return periodGrade A, 10.0 in/hr, beyond a 50 year return period- 10.0 inches is used to capture the upper bound of values in the results data.The bisect function, in this case, utilized breakpoints selected based on values of intensity from the Tarrant County Rainfall Data from iSWM for the 1-hour storm. The Letter Grade are based on a notion that a storm drain system that corresponds to the 1-year event is Poor, one that just conveys the 5-year may be adequate but is likely to result in flooding. Anything that conveys beyond 3 inches/hour is likely sufficient and may not merit further investigation, study or consideration for capital projects. The basis for this is from the Feasible Options Study conducted by Michael Baker Jr. lead by Burton Johnson. See Feasible Options Study Digest for further discussion.
Copyright Text: Brown & Gay Engineers and the City of Fort Worth.
Description: Hazardous Roadway Overtopping Locations:SummaryThis layer contains the locations in City of Fort Worth, which experience repeated flooding due to water overtopping from adjacent streams and water ponding due to inadequate storm drain conveyance system. Most of these locations were originally identified and studied by Deotte, Inc. in 2005 in order to develop a risk based priority. This priority was being used by the city for managing flood warning systems. However, a need for a comprehensive program to improve the existing infrastructure at these locations was recognized in order to reduce the number of such frequently flooded locations which would in turn enable relocating the flood warning system to other locations that didn’t have a warning system before. This led to the development of Hazardous Roadway Overtopping Mitigation program based on a revised scoring methodology and while incorporating more storm water incidents observed in the city since Deotte’s study. Freese and Nichols assisted the city with reprioritizing the locations based on hazard, developing cost estimates, and scoring the feasibility of providing infrastructure improvements for high priority hazardous overtopping locations.Contact persons: Naven Kathuroju, Kiran KonduruDescriptionThe following are the metrics and the scoring system used to compute the hazard based score:Depth of Flow over Road:DepthPoints0-1’51’-3’8>3’10Frequency of Overtopping:FrequencyPointsInfrequent1Frequent4>3’10Stormwater Incidents:IncidentPointsComplaints0.5Rescue5Fatality10Flooding or Downstream Threat:DS ThreatPoints0-10%210-50%850-100%10The scoring based on these metrics is added and sorted among all locations for ranking purposes. A low rank or a high score indicates high hazard.Contact person: Naven Kathuroju, Kiran Konduru
Description: Each area of interest contains a polygon identifying the spatial extent and a corresponding attribute value that matches the database ID of the project.Contact person: Naven Kathuroju, Kiran Konduru
Description: The TPW_Inspection feature class contains active and completed project areas to be utilized by Construction Services inspectors and staff. Staff will access this data using the SDS viewer for location and project-specific information to aid in survey and inspection services.
Description: The TPW_Inspection feature class contains active and completed project areas to be utilized by Construction Services inspectors and staff. Staff will access this data using the SDS viewer for location and project-specific information to aid in survey and inspection services.
Description: This feature class delineates area downstream from dams that are anticipated to be impacted by flood waters if the upstream dam is breached. Dam breach inundation area were developed by Freese and Nichols, Inc. as contracted by the City of Fort Worth’s TPW Stormwater Division as part of the Emergency Action Plan for multiple TCEQ regulated dams that are owned/operated by the City of Fort Worth. Additionally other breach areas were calculated/identified by other Design Consultants as part of development of EAPs for newly acquired “City” dams. CFW Contact person: Darich Levan, Darich.LeVan@fortworthtexas.gov
Copyright Text: City of Fort Worth; Freese and Nichols, Inc.
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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Preliminary data are for review and guidance purposes only. By viewing preliminary data and maps, the user acknowledges that the information provided is preliminary and subject to change. Preliminary data, including new or revised FIRMs, FIS reports, and FIRM Databases, are not final and are presented on the MSC as the best information available at this time. Additionally, preliminary data cannot be used to rate flood insurance policies or enforce the Federal mandatory purchase requirement. FEMA will remove preliminary data once effective data are available.</SPAN></P></DIV></DIV></DIV>
Description: The Transportation Impact Arterials and intersections are the arterial sections and intersections that were included in the 2022 Transportation Impact Fee study that are eligible for Transportation Impact Fee credit and/or transportation impact fee funding participation. These identified roadways are currently not fully constructed to the city’s ultimate configuration, and/or the city has incurred debt to pay for the construction of the roadways.
Copyright Text: 2022 Transportation Impact Fee study
Description: The Transportation Impact Arterials are the arterial sections that were included in the 2022 Transportation Impact Fee study that are eligible for Transportation Impact Fee credit and/or transportation impact fee funding participation. These identified roadways are currently not fully constructed to the city’s ultimate configuration, and/or the city has incurred debt to pay for the construction of the roadways
Copyright Text: 2022 Transportation Impact Fee study
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Description: This layer shows areas that have been released from Fort WorthETJ jurisdiction. These areas will no longer become or be considered as a part of CFW ETJ even as CFW ETJ expands with annexation activity.
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Reported Groundwater seepage locations from customers and residents.</SPAN></P></DIV></DIV></DIV>
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>These properties are conserved, at least in part, through the Open Space Conservation Program. Properties acquired in partnership with the Park and Recreation Department (park funding in addition to open space conservation program funding was used) will show an acreage in the "Park Acres" column based on the amount of Park funding used. See the specific M&Cs for more information regarding each specific property.</SPAN></SPAN></P></DIV></DIV></DIV>
Copyright Text: CFW Transportation & Public Works Department
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN><SPAN>This data consists of addresses and status updates from the TPW Stormwater Management Floodplain team on all enforcement actions.</SPAN></SPAN></P></DIV></DIV>
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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 7 0;"><SPAN>These are project areas for Water & Wastewater CIP projects including the proposed 2018 Bond projects. The lines are a representation of general project areas based on street centerline and other estimations as per project description/documentation. The projects are in various stages ranging from proposed to completed. Attempts will be made by Water IT GIS to regularly update the status and location of projects as information is received. For more specific questions about any particular projects, the Project Manager should be consulted.</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN /></P></DIV></DIV></DIV>
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which "... requires the purchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated or insured agencies or institutions in the acquisition or improvement of land facilities located or to be located in identified areas having special flood hazards, " Section 2 (b) (4) of the Flood Disaster Protection Act of 1973. In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP. The FIRM Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The FIRM Database serves to archive the information collected during the Flood Risk Project</SPAN></SPAN></P></DIV></DIV></DIV>
Copyright Text: The National Flood Hazard Layer (NFHL)