Proposed boundary of the seat of the Government of the United States, to be known as the "Capital". This territory is delineated in legislation to create the State of Washington DC passed by the US House of Representatives on June 26, 2020.The dataset contains locations and attributes of Federal District boundary, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies.

DDOT is committed to making District streets safer for all roadway users while providing multimodal mobility and access for residents, visitors, and commercial users. A combination of traffic control devices and traffic calming measures can help meet both goals. DDOT has a full portfolio of proactive, data-based safety efforts, which can be reviewed at https://visionzero.dc.gov/pages/engineering. In addition, our Traffic Safety Input (TSI) program provides a mechanism for DDOT to hear from residents on roadway segments and intersections where users have safety concerns.

The dataset contains polygons representing boundaries of District of Columbia 2022 election Wards. Boundaries include Census 2020 demographic data for population, age, race and housing. In the United States Census, Wards are the area name-Legal Statistical Area Description (LSAD) Term-Part Indicator for the District of Columbia.

This app displays a series of general information for an address, location, or where the user clicks in DC.Some information returned are:-Municipal Separate Storm Sewer System (MS4) area-Combined Sewer System (CSS) area-Watershed, Subwatershed, HUC12, HUC14, HUC16-Ward, ANC, SMD, and the address of the location-Census Tract and zip codeFor addresses along the borders of watersheds and sewer areas, further investigation should be taken. For hydrologic calculations and determinations, the USGS Watershed Boundary Dataset (WBD) should be referenced.DC Water operates a "separate" (MS4) and "combined" (CSS) sewers. Since the early 1900's, sewers constructed within the District have been separate systems and no new combined sewer systems have been built. These two independent piping systems: CSS mixes "sanitary" (sewage from homes and businesses) with stormwater while the MS4 is for "stormwater" only. In the District, approximately two thirds of the District is served by the MS4. The remaining one-third is served by the CSS. Areas highlighted in blue are MS4, in orange are CSS, and in green are direct drain areas that drain directly to streams and rivers. The MS4 system discharges into portions of the Potomac, Anacostia and Rock Creek drainage areas. The CSS drains to Blue Plains Advance Wastewater Treatment Facility.Visit DOEE - Water in the District Page or DOEE Environmental Mapping.For the USGS Hydrologic and Watershed Boundary Data for DC, visit this Link.Created with the Information Lookup Template from ESRIhttps://dcgis.maps.arcgis.com/home/item.html?id=54da82ed8d264bbbb7f9087df8c947c3

This data set describes Neighborhood Clusters that have been used for community planning and related purposes in the District of Columbia for many years. It does not represent boundaries of District of Columbia neighborhoods. Cluster boundaries were established in the early 2000s based on the professional judgment of the staff of the Office of Planning as reasonably descriptive units of the City for planning purposes. Once created, these boundaries have been maintained unchanged to facilitate comparisons over time, and have been used by many city agencies and outside analysts for this purpose. (The exception is that 7 “additional” areas were added to fill the gaps in the original dataset, which omitted areas without significant neighborhood character such as Rock Creek Park, the National Mall, and the Naval Observatory.) The District of Columbia does not have official neighborhood boundaries. The Office of Planning provides a separate data layer containing Neighborhood Labels that it uses to place neighborhood names on its maps. No formal set of standards describes which neighborhoods are included in that dataset.Whereas neighborhood boundaries can be subjective and fluid over time, these Neighborhood Clusters represent a stable set of boundaries that can be used to describe conditions within the District of Columbia over time.

This data package includes the underlying data files to replicate the data and charts presented in Carbon border adjustments, climate clubs, and subsidy races when climate policies vary, PIIE Working Paper 23-3.

If you use the data, please cite as: Clausing, Kimberly, and Catherine Wolfram. 2023. Carbon border adjustments, climate clubs, and subsidy races when climate policies vary. PIIE Working Paper 23-3. Washington, DC: Peterson Institute for International Economics.

This map displays blocks that are part of the RPP program. This map does not necessarily display areas with available RPP parking. Some blocks where residents are eligible for an RPP Permit may have meters or other signage that restrict the usage of RPP Permits.

RPP Permits and Visitor Parking Permits (VPPs) allow parking at green and red RPP zone signs. Please review and follow on-street signage and parking regulations to avoid receiving a citation.

This activity will no longer be maintained after June 16, 2025. Current lessons are available in the K-12 Classroom Activities Gallery.

This activity uses Map Viewer.ResourcesMapTeacher guide Student worksheetGet startedOpen the map.Use the teacher guide to explore the map with your class or have students work through it on their own with the worksheet.New to GeoInquiriesTM? See Getting to Know GeoInquiries.Social Studies standardsC3: D2.His.1.9-12 – Evaluate how historical events and developments were shaped by unique circumstances of time and place as well as broader historical contexts.C3: D2.His.2.9-12 – Analyze change and continuity in historical eras.C3: D2.His.3.9-12 – Use questions generated about individuals and groups to assess how the significance of their actions changes over time and is shaped by the historical context.Learning outcomesStudents will compare and contrast the chronology of Civil War battle locations and Union-controlled land between 1861 and 1865.Students will identify Confederate states, Union states, border states, Richmond, and Washington, D.C.More activitiesAll US History GeoInquiriesAll GeoInquiries

Taxi trip data provided as a zip file containing pipe (|) delimited text files or csv for trips by month. DFHV provided OCTO with a taxicab trip text file representing trips. OCTO processed the data to assign a block locations to pick up and drop off locations. The blocks were assigned using the original pick up, drop off lat/long coordinates and searching for the block locations in the DC Master Address Repository (radius tolerance of 250 meters and less). The pick and drop off times were also rounded to the nearest hour. See ReadMe.txt in zip file for summary.In addition, the pick up and drop off locations were assigned to an airport using locator polygons for Reagan, BWI, and Dulles. These polygons generally followed the visual borders of these airports.The Department of For Hire Vehicles continues its growing investment in good governance and public transparency with data sets, research reports, and taxicab trip ratings available for review below. Access to information enables the public to engage in more robust debates about DFHV regulations and programs; better inform the public about the industry and agency policies; encourage innovators to design new programs; and help improve safety. The data provided herein is derived from electronic sources the accuracy of which cannot be guaranteed. While DFHV strives to provide data that is accurate and current, all data provided is for informational purposes only. The District of Columbia disclaims all liability for errors, omissions, completeness, accuracy and currentness of the data provided herein. Use of data provided herein constitutes acceptance of these terms. Revisions to the dashboard have included the addition of Transport DC data and an update to address inaccurate data that was inadvertently posted due to a technical glitch.

description: Featherstone National Wildlife Refuge (NWR) is located in Virginia along the Potomac River, about 35.4 kilometers (22 miles) southwest of Washington, D.C. The 66.3 hectare (164 acre) refuge was acquired in 1979 as a portion of the Mason Neck NWR complex. The overall objective of this investigation was to gather baseline information on the contaminant status of the area. These data are needed to identify possible sources of contaminants; assess risks to aquatic life and piscivorous wildlife; and, if necessary, develop source control strategies. Neabsco Creek, which borders the refuge, and Farm Creek, which bisects it, were the primary study sites. In 1991, sediments, channel catfish (Ictalurus punctatus), and largemouth bass (Micropterus salmoides) were sampled for organic and inorganic contaminants. Polychlorinated biphenyl (PCB) levels in channel catfish muscle tissues averaged 1.74 ppm in Farm Creek and 2.45 ppm in Neabsco Creek. Four of the six samples from Neabsco Creek and 2/6 samples from Farm Creek had PCB concentrations exceeding the 2 ppm FDA tolerance. Mean PCB concentrations in largemouth bass from Farm and Neabsco Creeks were 0.28 ppm and 0.12 ppm, respectively. Sediments did not contain detectable concentrations of PCBs. In view of these data and the propensity of these species to move in and out of the creeks, the concentrations are viewed as representative of regional rather than highly localized inputs. During the study, there were observations of external lesions in channel catfish and brown bullhead (Ameiurus nebulosus), which merited a follow-up study. In 1992, the prevalence of lesions in 2930 brown bullhead collected from each of these creeks and from Marumsco Creek (1.75 km upstream) was determined. Coincident with the fish sampling, concentrations of polynuclear aromatic hydrocarbons (PAHs) in sediments were measured since PAH-contaminated sediments have been associated with an increased prevalence of cancerous lesions in this species. The average concentration of total carcinogenic PAHs in sediments was: Farm Creek (0.34 ppm) < Marumsco Creek (0.63 ppm) < Neabsco Creek (1.37 ppm). The prevalence of lesions between the three creeks was compared with the ranking of average carcinogenic PAHs in sediments, using the Jongheere-Terpstra test. A significant test (p<0.05) indicated that the prevalence of a lesion increased in the same order as the mean levels of carcinogenic PAHs. The prevalence of skin neoplasms (squamous carcinomas and papillomas) was 3.4in Farm Creek, 16.6% in Marumsco Creek, and 33.3% in Neabsco Creek. This ranking and the rankings of the total number of fish with tumors, invasive tumors, or non-parasitic lesions followed the trend in sediment carcinogenic PAHs according to the Jongheere-Terpstra test. The prevalence of liver carcinomas (0% at Farm Creek, 3.3% at Marumsco Creek, and 10% at Neabsco Creek) was of borderline significance (p=0.06). A possible source of PAHs in Neabsco Creek is a complex of three adjacent marinas, containing a fueling station and about 400 slips. The highest sediment concentrations of total PAHs (25.5 ppm) and total carcinogenic PAHs (2.70 ppm) were found in the station closest to the complex. The tumor prevalence and sediment concentration data were compared with data from studies in the Great Lakes region. It is recommended that further sampling take place in Neabsco creek to determine the extent of PAH contamination. Source controls should have the objective of reducing any continuing inputs.; abstract: Featherstone National Wildlife Refuge (NWR) is located in Virginia along the Potomac River, about 35.4 kilometers (22 miles) southwest of Washington, D.C. The 66.3 hectare (164 acre) refuge was acquired in 1979 as a portion of the Mason Neck NWR complex. The overall objective of this investigation was to gather baseline information on the contaminant status of the area. These data are needed to identify possible sources of contaminants; assess risks to aquatic life and piscivorous wildlife; and, if necessary, develop source control strategies. Neabsco Creek, which borders the refuge, and Farm Creek, which bisects it, were the primary study sites. In 1991, sediments, channel catfish (Ictalurus punctatus), and largemouth bass (Micropterus salmoides) were sampled for organic and inorganic contaminants. Polychlorinated biphenyl (PCB) levels in channel catfish muscle tissues averaged 1.74 ppm in Farm Creek and 2.45 ppm in Neabsco Creek. Four of the six samples from Neabsco Creek and 2/6 samples from Farm Creek had PCB concentrations exceeding the 2 ppm FDA tolerance. Mean PCB concentrations in largemouth bass from Farm and Neabsco Creeks were 0.28 ppm and 0.12 ppm, respectively. Sediments did not contain detectable concentrations of PCBs. In view of these data and the propensity of these species to move in and out of the creeks, the concentrations are viewed as representative of regional rather than highly localized inputs. During the study, there were observations of external lesions in channel catfish and brown bullhead (Ameiurus nebulosus), which merited a follow-up study. In 1992, the prevalence of lesions in 2930 brown bullhead collected from each of these creeks and from Marumsco Creek (1.75 km upstream) was determined. Coincident with the fish sampling, concentrations of polynuclear aromatic hydrocarbons (PAHs) in sediments were measured since PAH-contaminated sediments have been associated with an increased prevalence of cancerous lesions in this species. The average concentration of total carcinogenic PAHs in sediments was: Farm Creek (0.34 ppm) < Marumsco Creek (0.63 ppm) < Neabsco Creek (1.37 ppm). The prevalence of lesions between the three creeks was compared with the ranking of average carcinogenic PAHs in sediments, using the Jongheere-Terpstra test. A significant test (p<0.05) indicated that the prevalence of a lesion increased in the same order as the mean levels of carcinogenic PAHs. The prevalence of skin neoplasms (squamous carcinomas and papillomas) was 3.4 in Farm Creek, 16.6% in Marumsco Creek, and 33.3% in Neabsco Creek. This ranking and the rankings of the total number of fish with tumors, invasive tumors, or non-parasitic lesions followed the trend in sediment carcinogenic PAHs according to the Jongheere-Terpstra test. The prevalence of liver carcinomas (0% at Farm Creek, 3.3% at Marumsco Creek, and 10% at Neabsco Creek) was of borderline significance (p=0.06). A possible source of PAHs in Neabsco Creek is a complex of three adjacent marinas, containing a fueling station and about 400 slips. The highest sediment concentrations of total PAHs (25.5 ppm) and total carcinogenic PAHs (2.70 ppm) were found in the station closest to the complex. The tumor prevalence and sediment concentration data were compared with data from studies in the Great Lakes region. It is recommended that further sampling take place in Neabsco creek to determine the extent of PAH contamination. Source controls should have the objective of reducing any continuing inputs.

This activity provides a geographic overview of the American Civil War. The activity uses a web-based map and is tied to the C3 Framework.Learning outcomes:Students will be able to compare and contrast the chronology of Civil War battle locations and Union-controlled land between 1861 and 1865.Students will be able to identify Confederate states, Union states, border states, Richmond, and Washington, D.C.

Find more US HistoryGeoInquiries here or explore all GeoInquiries at https://www.esri.com/geoinquiries

Feature layer of US Bike Routes in Pennsylvania for use with PennDOT's PennShare and Open Data applications.The U.S. Bicycle Route System (USBRS) is a developing national network of bicycle routes connecting urban and rural communities via signed roads and trails. Created with public input, U.S. Bicycle Routes direct bicyclists to a preferred route through a city, county, or state-creating opportunities for people everywhere to bicycle for travel, transportation, and recreation. Over 19,000 miles are currently established in 34 states and Washington DC. There are 4 US Bike Routes that run through Pennsylvania- 11, 30, 36, and 50. 11: US Bike Route 11 runs north/south from the New York border in Lawrenceville, PA to the Maryland border north of Hagerstown, PA. 30: US Bike Route 30 runs east/west along the shore of Lake Erie from the New York border to the Ohio border in Erie County. 36: US Bike Route 36 runs east/west from the New York border in Pike County to the Ohio border in Crawford County. 50: US Bike Route 50 runs east/west from the Maryland border in Somerset County to the West Virginia border in Washington County. Send your bicycle/pedestrian questions to ra-pdbikepedpa@pa.gov For contact information for your local bike/ped coordinator, please visit the Bike/Ped Coordinators Contact Info Web Page