Laserfiche WebLink
<br /> <br /> <br />3 <br /> Project waters cross or serve as state boundaries. Explain: . <br /> <br /> Identify flow route to TNW 5: . <br /> Tributary stream order, if known: . <br /> <br /> (b) General Tributary Characteristics (check all that apply): <br /> Tributary is: Natural <br /> Artificial (man-made). Explain: . <br /> Manipulated (man-altered). Explain: . <br /> <br /> Tributary properties with respect to top of bank (estimate): <br /> Average width: feet <br /> Average depth: feet <br /> Average side slopes: Pick List. <br /> <br /> Primary tributary substrate composition (check all that apply): <br /> Silts Sands Concrete <br /> Cobbles Gravel Muck <br /> Bedrock Vegetation. Type/% cover: <br /> Other. Explain: . <br /> <br /> Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain: . <br /> Presence of run/riffle/pool complexes. Explain: . <br /> Tributary geometry: Pick List <br /> Tributary gradient (approximate average slope): % <br /> <br /> (c) Flow: <br /> Tributary provides for: Pick List <br /> Estimate average number of flow events in review area/year: Pick List <br /> Describe flow regime: . <br /> Other information on duration and volume: . <br /> <br /> Surface flow is: Pick List. Characteristics: . <br /> <br /> Subsurface flow: Pick List. Explain findings: . <br /> Dye (or other) test performed: . <br /> <br /> Tributary has (check all that apply): <br /> Bed and banks <br /> OHWM 6 (check all indicators that apply): <br /> clear, natural line impressed on the bank the presence of litter and debris <br /> changes in the character of soil destruction of terrestrial vegetation <br /> shelving the presence of wrack line <br /> vegetation matted down, bent, or absent sediment sorting <br /> leaf litter disturbed or washed away scour <br /> sediment deposition multiple observed or predicted flow events <br /> water staining abrupt change in plant community <br /> other (list): <br /> Discontinuous OHWM.7 Explain: . <br /> <br /> If factors other than the OHWM were used to determine lateral extent of CWA jurisdiction: <br /> High Tide Line indicated by: Mean High Water Mark indicated by: <br /> oil or scum line along shore objects survey to available datum; <br /> fine shell or debris deposits (foreshore) physical markings; <br /> physical markings/characteristics vegetation lines/changes in vegetation types. <br /> tidal gauges <br /> other (list): <br /> <br /> (iii) Chemical Characteristics: <br /> <br />5 Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into <br />TNW. <br />6A natural or man-made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows <br />underground, or where the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is <br />unrelated to the waterbody’s flow regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above <br />and below the break. <br />7Ibid.