Chapter 5: Bridge Project Development Reference Information

Section 1: Requests for Development of Bridge and Geotechnical Work

Design Detail Requests

Submit all structures to be let under a single project as one submittal to ensure uniformity of design and eliminate duplication of standards. Submittal requirements for typical bridge layouts, and bridge layouts involving a railroad, are listed below. See Section 1 of this Chapter for the typical bridge project submission schedule.
The transmittal e-mail from the District to the Bridge Division project manager must contain the following information:
  • District (both letting District and designing District, if different)
  • County
  • CSJ
  • Facility carried and feature crossed
  • Ready-to-let date and proposed letting date
  • Project type (new construction, rehabilitation, replacement, widening, etc.)
  • Point-of-contact information
  • Pertinent, completed e-form:
    • For bridge details, complete Form 2252 “Information Sheet for Structural Design” and select “Bridge Project” at the top of the form.
    • For traffic structures, complete Form 2252 “Information Sheet for Structural Design” and select “TRF Structures Project” at the top of the form.
    • For bridge rail details, complete Form 2448 “Information Sheet for Bridge Railing Upgrades, Retrofits & Repairs.”
    • For geotechnical details, complete Form 2627 “Information Sheet for Geotechnical Design.” The Geotech form includes requests for borings, retaining walls, slope failures, and foundations.
  • Approved preliminary bridge layout
  • Soil boring data (either on layout or separate sheet)
  • Typical sections sheet
  • Construction sequence sheet
  • A map view of the project illustrating the relationship of the roadways if the project is an interchange, or an interchange exists within the vicinity
  • Existing bridge as-builts if relevant
Table 5-1: Specific Geotechnical Project Development Schedule
Work Type
Small Scale
Large Scale
Specialty/Other
Borings: Bridge
All bridge lengths – 4 months
Borings: Retaining Wall
All bridge lengths – 4 months
Foundation Design#
L < 400 ft.; 1 Month
L > 400 ft.; 2 Months
L > 400 ft. Single Column Bents, Designed for Lateral Loading, Etc.; 3 to 4 Months
Slope Stability Analysis**
L < 150 ft.; 1-2 Months
L > 150 ft.; 2-4 Months
Retaining Wall Design*
H < 20 ft.; L < 350 ft. 4 months plus the Retaining Wall Design time.
H < 20 ft.; 350 ft. < L < 1000 ft. 4 months plus the Retaining Wall Design time.
Total Time for Retaining Wall Detail Sheets = Retaining Wall Borings (4 months) + Wall Design time (project specific).
MSE Wall
1 Month
1.5 Months
2 Months
Concrete Block Wall
1 Month
1.5 Months
2 Months
Sheet Pile
2 Months
2 Months
2 Months
Soil Nail
1.5 Months
2 Months
3 Months
Tie-Back
2 Months
2.5 Months
3 Months
Drilled Shaft
2 Months
2.5 Months
3 Months