Roads and Highways
St. Louis District Safety Design Build –
St. Charles and Franklin Counties, MO
Missouri Department of Transportation (MoDOT)
EDSI, serving as a subconsultant, was responsible for delivering safety improvement plans for several state routes located in St. Charles and Franklin Counties. The project provided an innovative approach to optimizing the implementation of safety improvements defined by Crash Modification Factors for the greatest cost benefit ratio. Improvements consisted of High Friction Surface Treatment, guardrail, striping, rumble strips, and signing. EDSI deliverables included plans, calculations, quality control documents, and estimates.
Wydown Boulevard Resurfacing –
City of Clayton
EDSI, as the prime consultant, was responsible for designing the federally-funded proposed improvements in the City of Clayton which included milling and asphalt overlay of Wydown Boulevard from the east edge of Hanley Road to the eastern city limit. The project also included the replacement of curb ramps per ADA guidance, curb replacement, replacement of colored asphaltic crosswalks with brick paver crosswalks, and signing and striping for bicycles and pedestrians.
Forsyth Boulevard – University City, MO
City of University City
EDSI, as the prime consultant, was responsible for the survey, design, and preparation of bid documents for the federally-funded improvements to Forsyth Boulevard from Big Bend Boulevard to the west City limits, including sidewalk and curb upgrades, road resurfacing, traffic signal upgrades, pavement markings, and bicycle facilities. EDSI will perform construction inspection.
Page-Olive Connector – St. Louis County, MO
St. Louis County Department of Transportation
This project was a design-build project constructing a new road between Olive Boulevard (Route 340) and the Maryland Heights Expressway and the widening of the Maryland Heights Expressway from its termination at Creve Coeur Mill Road to River Valley Drive. The project formed the final link between Route 141 and the Maryland Heights Expressway. As a subconsultant, EDSI’s design tasks included alignments, profiles, right-of-way and easements, pavement design, intersection geometrics and warping details, traffic control and construction phasing, temporary erosion and sediment control, lighting, signing, pavement markings, open and enclosed drainage design, cross-sections and earthwork/grading, utility coordination, quantity calculation, construction cost estimate, and technical specifications.
Washington Avenue Streetscape – St. Louis, MO
EDSI served as a subconsultant for the construction document phase of the Grand Center Great Streets Streetscape project along Washington Avenue between the Sheldon Theater and Grand Avenue, near the Fox Theater. This was the first implementation project of the Great Streets Master Plan. EDSI performed both Civil and Structural engineering services during the design development and construction document portions of the project. Design included grading, sidewalk and street paving improvements, stormwater, traffic control, signing, striping, and specifications, along with coordination with the design of the new Fox Theater parking garage. The original plan incorporated stormwater BMP’s that met MSD’s standards even though the project was in a sewer shed that did not mandate their construction. The original rainscaping elements of the project were submitted and approved by MSD along with a Project Clear Grant that was also approved. These additions to the project could not be constructed with the available budget and were eliminated. EDSI was also engaged in construction phase services. Prior to the Washington Avenue Streetscape project, EDSI had been selected to perform boundary and topographic surveys which serve as the basis for the Great Streets Master Plan.