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Thomas V. Clabo, P.E.
Civil Engineer
Fax:  865-215-6109

1400 Loraine Street
Knoxville TN 37921

Please call the front desk 865-215-6100 to be transferred to the appropriate party. Non-emergency requests may be faxed to 865-215-6109 or sent to tclabo@knoxvilletn.govAfter normal business hours (8 am to 4:30 pm Monday-Friday), please contact Police Dispatch at 865-215-4010 for emergency calls.

The Civil Engineering Division coordinates lists of projects to be performed each year through the process of:
  • Routine city inspections and inventory.
  • Recommendations from other city departments, city council, or the mayor.
  • Number and types of complaints/requests that are received from the general public or neighborhood groups.
  • Importance to transportation master planning or drainage master planning.
  • Amount of use by the citizens of Knoxville (traffic counts, recreational impacts).
All construction work within public right-of-way must meet or exceed the City of Knoxville Standard Details and Technical Specifications

The Civil Engineering Division also monitors and inspects any utility work within the public right-of-way through City ROW Construction Permits (or also called street cut permits) and Temporary Traffic Control Permits. 

The Civil Engineering Division conducts surveys for city projects and maintains a growing network of 3D survey control points. The network is based on the Tennessee Coordinate System of 1983 (the same grid system used by KGIS) to allow engineers, surveyors and developers to perform accurate surveys that match city grid coordinates and elevations. The network is tied to the Tennessee Geodetic Reference Network (TGRN), 2007 Readjustment.


The City of Knoxville has adopted new standard details for COK-10 (Type "B" Cast Iron Frame, Grate and Inlet) and COK-11 (Type "B" Cast Iron Frame, Grate and Inlet (Mountable)).  These new details allow for anti-theft measures to be included on catch basin frames and grates.  The appropriate frame and grade specified in COK-10 or COK-11 must be used when installing drainage infrastructure in Right-of-Way or on City property.  These standards are also recommended for use on private infrastructure, but are not required at this time. 

Any new plan submitted on or after May 1, 2015, must use these new standard details for construction in Right-of-Way or City property.  Click here to view the new standard details.

 Miscellaneous websites:

Federal Highway Administration (FHWA)
Tennessee Department of Transportation (TDOT)
Knoxville Regional Transportation Planning Organization (TPO)
Stormwater Engineering (Land Development Manual, BMP Manual)
Traffic Engineering (Traffic Investigations, Traffic Counts)