Improvement Alternatives. The PES shall include at least two improvement alternatives. The first alternative must consider acquisition of all flood-prone buildings and must provide an overall solution that meets or exceeds the current Program-adopted standards and specifications. The remaining alternative must provide a level of protection similar to the first alternative. If the City believes that the infrastructure or buildings cannot be reasonably or feasibly protected without an expenditure of funds that would significantly exceed the anticipated benefit, an additional alternative can be presented that does not meet the current Program-adopted standards and specifications. In this case only, the standards that cannot be met must be identified and the extent of “non-compliance” must be clearly explained and discussed. A summary of the alternatives will be provided that includes the following items for each item along with other pertinent information:
Improvement Alternatives. The PES shall include at least three improvement alternatives. The first alternative must consider acquisition of all flood-prone buildings and must provide an overall solution that meets or exceeds the current Program- adopted standards and specifications. The remaining two alternatives must provide a level of protection similar to the first alternative. If the City believes that the infrastructure or buildings cannot be reasonably or feasibly protected without an expenditure of funds that would significantly exceed the anticipated benefit, an additional alternative can be presented that does not meet the current Program- adopted standards and specifications. In this case only, the standards that cannot be met must be identified and the extent of “non-compliance” must be clearly explained and discussed. A summary of the alternatives will be provided that includes the following items for each item along with other pertinent information:
a. Facilities - Describe the existing conveyance facilities included as part of the alternative.
b. Road/traffic - Describe any modifications to the existing roads and provide a description of the traffic control during construction.
c. Utilities - Identify potential utility relocations based upon discussions with the utility companies.
d. Right-of-Way/Easements - Describe required changes to existing rights-of- way and easements.
e. Preliminary Drawings - Develop drawings in adequate detail to estimate opinions of probable cost which can be used for comparison of costs.
f. Opinion of Probable Costs - Prepare an opinion of cost for the proposed improvements.
g. Relationship to Other City Stormwater Facilities - Describe how the recommended improvements will interface with the existing stormwater facilities.
Improvement Alternatives. The primary known issue in this area is street flooding and there is no known structure flooding. The PES shall include two improvement alternatives. Buy out is not an option for this area. The first alternative must provide an overall solution that meets or exceeds the current Program-adopted standards and specifications. A second alternative will also be investigated that meets the standards as well. If a reasonable second alternative does not exist, the report will discuss the options considered and why there is not another reasonable alternative. A summary of the alternatives will be provided that includes the following items for each item along with other pertinent information:
Improvement Alternatives. Xxxxxxxx and Spring Creek Drainage Basins E N GI N E ER I N G ⁄ L A N D SC A P E A R C H I TE CTU R E ⁄ SU R V E XX X X 00 0 X. Xxxxxxxx Ave., Suite 10 0 , Sioux Falls, SD 5710 4 stockw elleng xxxxxx.xxx ⁄ 60 5.338.6668 Page 2 of 4 Proposal for Professional Services City of Harrisburg Xxxxxxxx and Spring Creek Master Drainage Plan
3.3.1 Develop alternatives for improvements throughout conveyance systems that comply with City of Harrisburg Engineering Design Standards.
3.3.2 Identify probable locations and approximate sizes for regional flood control facilities where needed to protect properties and reduce infrastructure costs.
3.3.3 Identify probable locations and approximate sizes for regional water quality facilities.
3.3.4 Develop proposed conditions model that incorporate improvements.
