Our team served as Prime consultant for a Mini Roundabout for NCDOT through the Statewide On-Call Planning and Design contracts. The goal of this project was to improve the operational safety of the intersection of Carver St. and Broad St./Kenan Road in Durham, NC. Due to several rear-end collisions and numerous near-misses, a mini-roundabout was utilized to calm traffic while continuously processing traffic through the intersection, thus eliminating the need for side street traffic to compete for limited gaps in the predominant Carver Street movement. The mini-roundabout approach limited the amount of impact to surrounding property owners but accommodates the turning movement of larger vehicles (transit/school buses, fire truck, etc.) through the use of a mountable center island. The Summit team provided roadway design, hydraulic design, erosion control design, traffic management and pavement marking design, and utility coordination/design services for the project. Summit also participated in NCDOT’s Public Involvement efforts and provided supplemental route location surveys and easement staking as needed to complete the project.
As lead engineer, our team is providing roadway design, hydrologic/hydraulic analysis, drainage design, TMP/PMP design, utility coordination and design, surveying, geotechnical engineering and project management for 28 bridges and 26 culverts. Summit is also managing subconsultant services for structure design, hydraulic analysis/ design, utility coordination and ROW acquisition.
Summit was the prime consultant on the Town of Hillsborough’s Riverwalk, a recently-opened collection of urban greenways along the historic Eno River. To develop the initial greenway routing and bridge crossing locations, Summit and its team performed site assessments, detailed surveys, flood plain analysis, historical and archaeological assessment, and agency coordination to gain concurrence on the preferred route. Under supplemental contracts, Summit provided detailed engineering design including greenway trail design, hydraulic design, CLOMR/LOMR, and structure design to develop full construction plans, prepare bid packages, and administer the public bid processes for the resulting two construction projects. During construction, Summit also provided daily inspection and testing services and construction management of the project to final completion. Summit’s ingenuity to utilize a top down construction method saved the town $30,000, shortened construction time by three months, and preserved mature, native trees.