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permit. In addition, driveway access spacing shall conform to requirements outlined in Section 9 of Marion County's Transportation System Plan. All parcels shall use a common driveway access. No new driveway accesses will be allowed onto 45th Avenue. STORM DRAINAGE Prior to plat approval, the applicant shall submit a site drainage plan that includes existing contours or show natural drainage courses that are indicated by arrows pointed in the direction of flow and how the applicant proposes to discharge roof runoff from the site. Site grading shall not impact surrounding properties in a negative manner. Construction of improvements on the property shall not block historical or naturally occurring runoff from adjacent properties. Public street and storm drainage improvements shall be built to Marion County Engineering and Construction Standards. Storm drainage shall be discharged to a suitable outlet and, where applicable, evidence provided that an adequate easement exists for transit of the water to such an outlet. GENERAL The applicant shall submit five sets of engineering plans for the required improvements. A registered professional engineer in the state of Oregon shall stamp the plans. The applicant shall obtain approval of the subdivision engineering plans for the required improvements from Marion County Public Works and any other concerned agencies. The applicant shall be required to provide evidence of submission of plans to the applicable utilities before final approval is given. A Major Construction Permit is required before construction of roadway and drainage improvements may commence. The applicant shall submit proof of financial capability for all street and storm drainage improvements. Prior to plat approval, the applicant shall submit proof of financial capability for all public street and storm drainage improvements inside the County right-of-way. The financial capability will be based on an engineer's cost estimate from an approved subdivision engineering plans from Marion County Public Works. Any required street and/or storm drainage improvements that are not constructed within three -years of the approved Major Construction Permit shall be grounds for Marion County to call in the financial guarantee to complete the project. The subject property is within the urban growth boundary area of the City of Salem. Transportation Systems Development Charges shall be assessed upon development of the homes on the newly created parcels at the time of application for building permits.