Technical Standards Manual


The City Council adopted the new Garland Development Code (GDC) on Tuesday, May 19, 2015. The Engineering Department has created a Technical Standards Manual (TSM) that was adopted in conjunction with the GDC. The purpose of the manual is to ensure that all public infrastructure in the City is designed and constructed to the highest standards. 

The TSM replaces the Public Works Design Guideline from 1996 and the Traffic Management Standards from 1996 in their entirety.

Current Version of the TSM

This manual may be revised periodically. The proposed revision will be posted on this website for a period of 30 days prior to implementation unless the revision is required to comply with Federal, State, County and City laws, regulations, ordinances or codes. The Appendix consists of checklists and forms pertaining to the Technical Standards Manual and therefore may be revised to correspond to the TSM or City Ordinances without a review period.

At any time, if you have a comment or request to modify current design criteria or add new design criteria, a formal request can be submitted to the City for consideration in writing to the Director of Engineering. These comments will be reviewed and responded to.

This page will contain the City’s most current version of the TSM. The Technical Standards Manual will include a Record of Revisions to identify any revisions to the Technical Standards Manual. Please send questions or comments via email at


The document below contains proposed revisions to the Technical Standards Manual. The revisions have been posted as of February 1, 2022 initiating the 30 day review period. 

Overall summary of proposed revisions and Sections being revised:

Section 1 & 2: Update to reflect the electronic PDF only submittals and reports and reflect the previously adopted 5% engineer review and inspection fee.


Section 4:

  • Make analyzed storm events uniform across sections (2, 10, 100).
  • Add plan documentation/notation requirements to mimic already in practice approach.
  • Update rainfall intensity to match NOAA Atlas 14 rainfall data as adopted by iSWM in 2020 (increase in intensity: example for Tc=10min, current I100=9.27 in/hr; revised is 9.76 in/hr).
  • Update submittal process to electronic PDF requirements.


Section 8: Update language to match GDC, correct error in SSD and clarify tandem parking requirements.


Section 9: Update table to reflect previously adopted standard details.

If you have a comment or question regarding the proposed revisions, please send an email to and the Engineering Department will consider and respond to all comments.  Revisions were adopted and are effective as of April 1, 2022.

Link to proposed revisions: TSM Proposed Revisions 2022 Sec 1, 2, 4, 8, 9.pdf