Roadway Cross Sections Sample Clauses

Roadway Cross Sections. The Consultant shall develop project cross sections for all streets in the project. Cross sections will be developed at all driveways, carriage walks and private walkways (at a minimum) and supplemented at 25-foot stationing, where necessary. Cross sections will be prepared on 11”x17” and at 1"=10' V and 1"=10' H. Cross sections will display the following features: • Original ground • Finished grade • Existing and Proposed top of pavement elevations at profile grade line • Pavement structure • Curbing • Sidewalk • Driveways • Cross-Slopes (pavement, driveway, sidewalk, tree lawn, etc.) • Highway boundary / right-of-way lines Existing and proposed utilities and drainage information do not need to be depicted on the plotted cross sections unless a sewer main is proposed. G. Digital Terrain Model (DTM)

Roadway Cross Sections. The ENGINEER shall prepare proposed cross sections at a scale of 1” = 10’ horizontal and 1” =10’ vertical (on 11”X17” format). Cross sections shall be created at all critical locations and on 100-foot increments for Collin County Outer Loop Access Road and cross streets with construction beyond the radius return. The ENGINEER shall determine the quantities of cut and fill for each cross section and provide the earthwork quantities in a tabular format in the plans. The ENGINEER will select standard details applicable to the roadway design as needed for construction and include in the plans for the 60%, 90%, and final submittals.

Roadway Cross Sections. After the roadway 2D and 3D topographic survey files have been adjusted to the current VRS, GPS coordinate system, it shall be necessary to re-develop the design files for the US 54 main lane cross-sections and re-cut the sections.

Roadway Cross Sections. The ENGINEER shall prepare proposed cross sections at a scale of 1” = 10’ horizontal and 1” =20’ vertical (on 11”X17” format). Cross sections shall be created at all critical locations and on 100-foot increments for Collin County Outer Loop Access Road and cross streets with construction beyond the radius return. The ENGINEER shall determine the quantities of cut and fill for each cross section and provide the earthwork quantities in a tabular format in the plans for the 60%, 95% and final submittals The ENGINEER shall develop each retaining wall design and determine the location of each soil boring needed for the foundation design of each retaining wall in accordance with the Geotechnical Manual. Prior to preparation of the retaining wall layouts, the ENGINEER shall prepare a comparative cost analysis of different type of retaining walls versus roadway embankment, pavement, soil stabilization, retaining walls type and available ROW to determine the optimum selection based on economics, construction time duration, ROW encroachments (need for construction easements) and construction feasibility. The approximate limits of the retaining walls shall be based on Station or length. The ENGINEER shall notify the COUNTY, for their review and approval of retaining walls that will be proposed to be used for each Cut and Fill location. Retaining wall type shall be: • Mechanically Stabilized Earth (MSE) Walls. The ENGINEER shall prepare the retaining wall layouts showing plan and profile. The ENGINEER shall incorporate a slope of 4:1 or flatter (6:1 preferred) from the existing and finished ground line elevation to the face of the retaining wall. The ENGINEER shall provide layouts (assume scale 1”=100’), elevations, quantity estimate, summary of quantities, typical cross sections and miscellaneous details of all retaining walls within the project. If applicable, architectural standard drawings are not included as part of this scope of services and will be provided by the COUNTY and shall be incorporated into design details. The specific requirements for each item are as follows:

Roadway Cross Sections. The ENGINEER shall determine earthwork quantities and provide final design cross sections at 50-foot intervals. Cross sections shall be delivered on 11”x17” sheets. The ENGINEER shall provide all criteria and input files used to generate the design cross sections. Cross sections and quantities shall consider existing pavement removals. Annotation shall include at a minimum existing/proposed right of way, side slopes (front & back), and profile elevations. Cross sections shall be submitted by the ENGINEER at the 60%, 90%, and Final submittals, respectively.