ON-CALL SANITARY SEWER REHABILITATION DESIGN

Baltimore County, Maryland - Baltimore County Bureau of Engineering and Construction

SERVICES: SSES • Smoke Testing • Dye Testing • Cleaning & CCTV Inspection • GPS Location • Surveying • Geotechnical • Manhole Inspections • Wetland Delineations • Permitting • Trenchless Rehabilitation Design • Environmental Permitting

WORK PERFORMED: March 2013 – March 2017

OWNER CONTACT

Mr. David Bayer, P.E., Project Engineer

(p) 410.887.3782 • (f) 410.887.3406 • dbayer@baltimorecountymd.gov

111 West Chesapeake Avenue, Suite 307, Towson, MD 21204

COST: $4,000,000

SCOPE OF WORK

Hydrostructures was selected by Baltimore County to perform various sanitary sewer rehabilitation design projects to support its consent order with the EPA, Maryland Department of the Environment, and the U.S. Department of Justice. Projects include review of CCTV inspection data and manhole inspection reports, design of trenchless technology pipeline rehabilitation and pipeline replacement, manhole rehabilitation, lateral replacement and rehabilitation, permitting, environmental surveys and sketches, and construction phase services. This project encompasses two tasks to date. Task A includes the cleaning and CCTV inspection of 43,000 linear feet of 8” – 15” sanitary sewer pipe, the inspection of 110 manholes, and the cleaning and inspection of 700 LF of 8” – 15” siphon pipe. The scope of work for Task B includes the comprehensive sewer rehabilitation design and construction phase services for the rehabilitation of the public portion of the County’s collection system within Basins SR02B and SR03. Subtasks include desktop review of existing information; video review and assessment of pipes, manholes, and laterals; field inspection of sewer mains and manholes to collect incomplete data (As Needed); site walk of select sewer mains/manholes for areas with limited access (As Needed); preparation of base mapping using Auto Cad and COUNTY GIS; draft Design (90% Design); Pre-Final Design (95% Design); Final (Bid Ready) Documents (100% Design); bid administration assistance; and construction phase services.

Prior to lining, all observed structural defects will be noted and structural rehabilitation recommendations will be made by the engineer based on condition, cost, capacity, access, constructability and other factors.

Browse our site today to learn more about us, our field services, our engineering and construction services, our GIS and utility mapping services, and to view photo galleries and descriptions of some of our projects. Call us today at (919) 542-5002 or contact us to learn more about how we can serve all of your water, wastewater, and stormwater needs.

Hydrostructures delivers comprehensive wastewater,  stormwater, and water system collection, conveyance, and management design and consulting services to clients throughout the Southeast and Mid-Atlantic, with offices in Pittsboro, North Carolina; Winston Salem, North Carolina; Cayce, South Carolina; and Virginia Beach, Virginia.

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