Design & Construction Specifications - Town of Kernersville

G. BridgeStructures, which are to span streams, shall be designed for hydraulicrequirements in accordance with this manual. Plans shall be submitted to thePublic Works Department for review and approval.All public or private bridges shall be designed to withstand HS-20 highwayloading unless otherwise approved by the Public Works Department and shallbe properly signed and sealed by a North Carolina Professional Engineer.H. Roadway DamsIt is the policy of the Town of Kernersville to discourage the location ofroadways on dams. In those cases, where a definite advantage may be gainedor a substantial savings in funds may be realized, the utilization of a dam for aroadway may be considered.Where it is determined that a dam will be utilized as a roadway, the followingcriteria must be met:1. When applicable, the dam must have certification from the NCDepartment of Natural Resources and Community Developmentpursuant to the "Dam Safety Law of 1967" (as amended by the GeneralAssembly of 1977).2. All pertinent data regarding the design of the embankment as animpoundment structure must be presented to the Public WorksDepartment for review.3. The top cross-section dimension must be the roadway section widthrequired (from right of way line to right of way line) for the facility plus aminimum of four (4) feet on each side.4. Guardrail will be provided on both sides of the roadway.5. Spillway will be designed to provide two (2) feet of freeboard for anestimated 100-year design frequency outflow as a minimum.6. A means of draining the lake completely will be provided.Design acceptance or approval by the Town is limited to the use of the dam asa roadway and is in no way intended as approval of the embankment as animpoundment structure.Responsibility incurred by the Town of Kernersville when a section of roadwaycrossing a dam is accepted as a part of the Town's maintenance system islimited to maintenance of the roadway proper for vehicular traffic only.