The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Edge refers to the linear topological primitives that make up MTDB. The All Lines Shapefile contains linear features such as roads, railroads, and hydrography. Additional attribute data associated with the linear features found in the All Lines Shapefile are available in relationship (.dbf) files that users must download separately. The All Lines Shapefile contains the geometry and attributes of each topological primitive edge. Each edge has a unique TIGER/Line identifier (TLID) value.

These features typically describe natural formations within channels which are dependent on, (and therefore an indicator of) flow type, channel form, substrate type and artificial interventions among others._Line features are used to indicate any notable features present in the channel.Attributes include information about the channel: Confluence, Bedscarp, Overdeepened Channel; Indicators of Erosion: Local erosion, Exposed roots; Indicators of Deposition: Eroded alluvial deposits, Concave bar, Vegetated point bar, Unvegetated point bar, Vegetated side bar, Unvegetated side bar, Concave bar, Mature island, Sand deposits, Sparse deposits; Additional information: Blockage, Exposed rocks; Seeps and Waterfalls. The mapped notable features and their definitions correspond to those found within the CARAVAGGIO method (2011) and River Habitat Survey (2003)

Attachment regarding request by Brad Haertling, P.E. on behalf of Contentnea Creek for subdivision Construction Plan review of Summit Terrace, consisting of 26 lots on 56.15 acres, located off Mt. Gilead Church Road (SR-1700), parcel 19355.

These data points present a cross-section of the stream at each 200m point along the reach (when accessible).Channel dimensions are recorded along with the presence and amount of water, erosion and deposition features and descriptive features of the bank type and condition._Point feature that is required to be collected every 200m in the channel. Each point records the following attributes:Channel: Water and Berm presence and position Banks: Bank Profile, Bank Erosion, Bank Material Measurements: Bank slope, Bank-top height, Channel width, Bankfull width, Water Depth, Water Width

Avisual classification of the type of flow observed within a channel.Six Aquatic States are noted in line with the definition used within the TREHS LIFE Project (LIFE13 ENV/ES/000341, 2015) and international hydrological studies.An additional three states are noted (Inaccessible, Relic and Potential channels) that add additional information.Line feature indicating both the actual channel location as well as the flow type throughout the entire channel. The following flow types are recorded:Flood (Hyperrheic)Flood conditions refers to infrequent high water causing a strong but short-lived disturbance to aquatic fauna. In permanent or distinctly banked channels it is possible that water overflows into the floodplain.High flow (Eurheic)High flow conditions refers to very fast flowing water, potentially creating rapids. A regular succession of riffle-pool mesohabitat types should be present.Continuous flow/Connected pools (Oligoreheic)Water flow is low but continuous and sufficient to connect most pools in the reach through water rivuletsLow flow/disconnected pools (Arheic)Flow is alluvial only or none, with disconnected pools of water still present in the stream bed.Moist alluvium (Hyporheic)Surface water is not present for most of the reach however alluvial presence of water is observed.Dry bed (Edaphic)Surface water is not present at any point and the alluvium is completely dry.Areas where the channel could not be observed are marked with an ‘Inaccessible’ line feature. Areas where indication of ancient water flows are observed but these have ceased to exist, are marked with a ‘Relic Channel’ line feature. Areas where the location and presence of water flow is unclear and/or undetermined are marked as a ‘Potential channel’ line feature.A degree of confidence is allocated to each feature according the confidence of the researcher in the presence of a channel. This is classified as High, Moderate or Low.

Head of Tide data has been screen digitized with reference to Bill Hinkley's 1974 River Sampling Station description guide, USGS zero contour data, as well as salinty sampling results from the Maine Department of Environmental Protection and the Maine Department of Marine Resources. Data points may represent known or approximate Head of Tide location based on hydraulic activity, environmental sampling data, and/or zero contour data. Data is considered to be dynamic in a small degree due to land use, natural evolution, and human activities. Data is also subject to changes, updates, and revisions. Field Data Attribute info:HTtype HS = based on salinity and hydrological data SAL = based on salinity sampling HYD = based on hydraulic information or dataHTnotes SWQ = Statute Water Quality (can be arbitrary) RSS Hinckley 1974 = excerpt from Hinckley's 1974 River Sampling Station descriptions ZC = based on USGS zero contour data (note that an individual point may have one or more notes associated with it)HTLocation: Completed where there is a notable physical attribute associated with the point location.

Cette base de données contient les données vectorielles suivantes, dont chaque thème est préfixé par un trigramme :Localisation (LOC) : îles, limites administrativesEdification (EDI) : bâtiments, constructions surfaciques, constructions linéaires.Hydrographie (HYD) : rivières, surfaces hydrographiques, lagons.Occupation du sol (SOL) : zones végétalisées naturelles ou exploitées.Orographie-Relief (REL) : courbes de niveaux, talus, point cotés.Réseau routier (VOI) : voirie axes et bords, mobiliers routiers.Toponymie (NOM) : points d’Intérêt, oronymes, hydronymes, lieux-dits

Cette base de données contient les données vectorielles suivantes, dont chaque thème est préfixé par un trigramme :Localisation (LOC) : îles, limites administrativesEdification (EDI) : bâtiments, constructions surfaciques, constructions linéaires.Hydrographie (HYD) : rivières, surfaces hydrographiques, lagons.Occupation du sol (SOL) : zones végétalisées naturelles ou exploitées.Orographie-Relief (REL) : courbes de niveaux, talus, point cotés.Réseau routier (VOI) : voirie axes et bords, mobiliers routiers.Toponymie (NOM) : points d’Intérêt, oronymes, hydronymes, lieux-dits

Cette base de données contient les données vectorielles suivantes, dont chaque thème est préfixé par un trigramme :Localisation (LOC) : îles, limites administrativesEdification (EDI) : bâtiments, constructions surfaciques, constructions linéaires.Hydrographie (HYD) : rivières, surfaces hydrographiques, lagons.Occupation du sol (SOL) : zones végétalisées naturelles ou exploitées.Orographie-Relief (REL) : courbes de niveaux, talus, point cotés.Réseau routier (VOI) : voirie axes et bords, mobiliers routiers.Toponymie (NOM) : points d’Intérêt, oronymes, hydronymes, lieux-dits

Cette base de données contient les données vectorielles suivantes, dont chaque thème est préfixé par un trigramme :Localisation (LOC) : îles, limites administrativesEdification (EDI) : bâtiments, constructions surfaciques, constructions linéaires.Hydrographie (HYD) : rivières, surfaces hydrographiques, lagons.Occupation du sol (SOL) : zones végétalisées naturelles ou exploitées.Orographie-Relief (REL) : courbes de niveaux, talus, point cotés.Réseau routier (VOI) : voirie axes et bords, mobiliers routiers.Toponymie (NOM) : points d’Intérêt, oronymes, hydronymes, lieux-dits

Cette base de données contient les données vectorielles suivantes, dont chaque thème est préfixé par un trigramme :Localisation (LOC) : îles, limites administrativesEdification (EDI) : bâtiments, constructions surfaciques, constructions linéaires.Hydrographie (HYD) : rivières, surfaces hydrographiques, lagons.Occupation du sol (SOL) : zones végétalisées naturelles ou exploitées.Orographie-Relief (REL) : courbes de niveaux, talus, point cotés.Réseau routier (VOI) : voirie axes et bords, mobiliers routiers.Toponymie (NOM) : points d’Intérêt, oronymes, hydronymes, lieux-dits