This project involved the preliminary bridge design, hydraulics and scour evaluation for a bridge along SR-8 over Quiver River in Sunflower County, Mississippi. Hydraulics tasks included 2D modeling of the existing, proposed, and during construction bridges, a detailed scour analysis, scour countermeasure design, and developing a report summarizing procedures and the impacts of the proposed bridge. Bridge design tasks include preliminary layout and design of bridge spans, superstructure, substructure and plan development.
Mississippi Non-Complex Bridge Inspections
Client: Mississippi Office of State Aid and Road Construction
Location: Calhoun, Carroll, Grenada, Leflore, Webster, and Yalobusha Counties, Mississippi
Services: Bridge Inspection
Performed NBIS Routine inspections for 160 bridges and 46 Scour Monitoring inspections within various counties in North MS. NBIS Routine Inspection tasks included Inspection Plans, Field Inspections, Data Collection for Load Rating, InspectTech Reporting, and Inspection QA/QC. Scour Monitoring tasks included Scour Plan of Actions (POA), Scour/Waterway Appraisal Inspection, and InspectTech reporting. Due to flooding damage, L&R also performed a Special Inspection of the Gums Crossing bridge over Grenada Lake.
Valley Road Bridge Improvements
Client: Waggoner Engineering / City of Meridian, MS
Location: Meridian, MS
Services: Bridge Rehabilitation
L&R was requested to assist Waggoner Engineering and the City of Meridian with the rehabilitation and repair of Valley Road over Sowashee Creek. The bridge was recently closed to traffic after findings in the previous NBIS inspection, and since the bridge is vital to a local manufacturing facility the City needed a rapid response coupled with expertise in bridge rehabilitation. An on-site assessment of the bridge was performed in addition to field measurements to establish the rehabilitation requirements. Within 4 weeks rehabilitation plans were completed to address deteriorated steel piles, deteriorated steel girders and provide scour countermeasures. All steel members were abrasive blasted and painted to provide a longer service. Deteriorated piling was repaired with encasements and pile connection angles. Deteriorated girders were repaired with girder support plates, and epoxy repairs were applied to various locations. A load rating was performed to ensure the planned rehabilitation resulted in adequate load carrying capacity for the bridge, and during construction L&R assisted with construction engineering and inspection to ensure proper construction.
Old 80 Bridge Improvements
Client: Waggoner Engineering / City of Meridian, MS
Location: Meridian, MS
Services: Bridge Design
L&R was requested to assist Waggoner Engineering and the City of Meridian with the bridge replacement of the Old 80 bridge over Okatibbee Creek. The existing truss bridge is being replaced with a prestressed girder bridge. L&R responsibilities include bridge design, bridge plans, and CE&I assistance.
Parking Lot Retaining Wall Improvements
Client: Mid-America Apartment Communities
Location: Ridgeland, Mississippi
Services: Civil Site Design
Mid-America apartments owned and operated an apartment complex in Ridgeland, Mississippi that had been experiencing issues within the parking lot due to a retaining wall failure. A thorough inspection of the site was made and recommendations were provided for proposed improvements to the retaining wall and parking lot.