Watershed & Stream Improvement
The project will be comprised of three separate project phases to allow for completion and funding of each individual stream section in a timely manner. The goal will be to stabilize the tributary and main stem of West Branch Rocky River by grading the stream banks to a gentle slope that will support and sustain native vegetation during all seasons of mother nature’s storm events for decades to come.
Phase 2 will be along the main stream beginning at Grey Road and extending to the confluence with the tributary (Est 5,000 ft.).
All Phase Map
This project will mainly focus on bank stabilization, vegetation, buffer enhancement, and stream conveyance. This is a large project with much needed grading and stream bank repair. The bank stabilization will gently slope the existing vertical banks to establish a growing surface for vegetated buffer and future tree growth that will in turn provide roots to secure the stream bank.
This project has had the opportunity to expand with additional partnerships that have delayed progress toward construction. This added length of the Tributary will extend to the limits of the FEMA Floodplain to restore additional stream. The total project will restore over 19,000 linear feet of stream in the Rocky River watershed in Davidson, NC.
Survey crews document the existing drainage system and surrounding areas. The project team uses this information, along with property owner input and requests for service, to analyze existing drainage system conditions. Staff hosts a public meeting to present the existing conditions analysis and obtain additional input from property owners. Several improvement alternatives are then developed and evaluated to determine the most economical and least impactful solution. The project team presents the recommended alternative to property owners for input at a public meeting at the end of this phase. This phase typically lasts 12 to 27 months.
The project team develops detailed construction drawings for the selected alternative, addressing pipe sizes and alignments, drainage channel widths, utility relocations and easement locations. A project team member may meet with individual property owners to discuss the drainage system improvements and how construction will impact specific properties. The project team hosts a public meeting to present the preliminary design plan, which illustrates specific improvements to properties, and begin the easement acquisition process. This phase typically lasts 21 to 34 months.
The project team obtains required Federal and State water quality permits and other necessary permits, such as permission to work within railroad and NCDOT rights-of-way, as necessary. This phase typically lasts 3 to 9 months and will overlap with the Design Phase.
Staff works with property owners to acquire temporary or permanent easements. Easements provide permission for Storm Water Services to access the property, construct the recommended improvement and provide future maintenance. This phase typically lasts 9 to 12 months and will overlap with the Design Phase.
A competitive bidding process is held to select a qualified contractor to construct the project. By state law, the lowest responsible bidder is awarded the construction contract. This phase typically lasts 7 to 8 months.
Throughout construction, the project team works to minimize disruption to property owners. The Storm Water Services construction inspector serves as the main point of contact for residents. Notifications of key construction dates will be communicated to residents prior to construction. This phase varies, depending on the specific project, but typically lasts up to two years.
The construction contract includes a warranty guaranteeing materials and workmanship for one year from the date of completion. The construction inspector conducts 6- and 11-month inspections during the warranty period. Upon notification, the contractor must repair defective items at no additional cost.