On-Call Engineering Services (Countywide)

The County of Lexington is seeking sealed proposals for ON CALL ENGINEERING SERVICES for Lexington County.

The specifications listed herein are not intended to be restrictive in any way. The intent is to provide potential responders a basic guideline for the Engineering Services that are acceptable.

Interested Consultants shall develop a team of professionals who are capable of offering the variety of services defined herein.

Projects assigned to the Consultant under this contract may include, yet not be limited to:

1. Transportation and Highway Engineering: Including, but not limited to: roadway widening projects, paving existing dirt roads, new roadway design, intersection improvements, traffic calming, pavement section design, right of way acquisition coordination, construction management, material testing and inspection, utility coordination, subsurface utility engineering, and evaluation of safety complaints [...].
2. Structural Engineering: Including, but not limited to, the design of structural repairs for bridges, design of new structures such as retaining walls, culverts, bridges, structural steel and wood structures, and inspections.
3. Traffic Engineering: Including, but not limited to, analysis of existing traffic conditions, traffic calming recommendations, evaluation of traffic related complaints; development of signing and pavement marking plans; maintenance of traffic plans; preparation of traffic impact studies; and review of traffic studies prepared by others.
4. Geotechnical Engineering: Including, but not limited to subsurface exploration, soil boring, material sampling, testing, analysis, and recommendation related to excavation, slope stability, infiltration, groundwater, retaining structures, compaction, gradation, and pavement section design and evaluation.
5. Stormwater & Environmental Engineering: Including, but not limited to, hydraulic/hydrologic engineering using standard computation methodology and computer modeling [...]. Scope may include, but is not limited to, storm drainage system design and evaluation, waterway analysis to support culvert and bridge design, evaluation of drainage complaints, development of sediment and erosion control measures, other related activities, wetland delineation, permitting and mitigation, archaeological, endangered species and any other regulatory permitting requirements.
6. Land and Geodetic Surveying: Including, but not limited to, measurement of land and land features, establishment of property boundaries, topographic mapping, establishment of vertical and horizontal surveying control using global positioning systems and equipment, adjustment of survey data including balancing of traverses and volume calculations, adjustment of GPS control points with existing data, cross sectioning, preparation of right of way and boundary plats and related activities.
7. Environmental Field Delineation: Including, but not limited to wetland delineation, permitting and mitigation, archaeological, endangered species and any other regulatory permitting requirements. Ability to develop a wetland mitigation bank.
8. Real Property Acquisition: Including, but not limited to acquiring the necessary rights of way, drainage easements, slope permissions, etc. necessary to complete the work assigned.
9. Construction Management: Including, but not limited to general oversight and inspection of construction processes such as clearing and grubbing, excavation, grading, sub-base preparation, base course placement and preparation, drainage feature installation, pile/shaft installation, and paving operations.

**Proposals** are to be submitted no later than **2:00 P.M. E.T. November 9, 2026**, in the Lexington County E-Procurement System. Offerors shall upload their responses in the Lexington County E-Procurement System. Each file size shall not exceed fifty (50) MB. Each offeror shall provide one (1) original version and one (1) redacted version.

The preceding shall be limited to twenty-five (25) double-spaced pages with a minimum size 10 font.

Responses will be evaluated on the criteria included in the Sample Score Sheet (Attachment Four (4)), which are listed in no particular order, on page 27.

The County will have up to ninety (90) calendar days to review all qualification submittals.

Provide certification that offeror has the ability to commence full operations within thirty (30) days after notification of award.