Standard Drawing Substitution

Non Published Drawings - NOT For General Use
Approved Alternative Manufacturer's Drawing
TDOT Standard Drawings Manufacturer Approved Drawing(s)
D-PE-30  Type "U" Cross Drain Endwall Foley 30" Endwall (3:1 Slope) - General Details
D-PE-30 Type "U" Cross Drain Endwall Foley 30" Endwall (4:1 Slope) - General Details. 
D-PE-30 Type "U" Cross Drain Endwall Foley 30" Endwall (6:1 Slope) - General Details. 
D-PE-36  Type "U" Cross Drain Endwall Foley 36" Endwall (3:1 Slope) - General Details. 
D-PE-36 Type "U" Cross Drain Endwall Foley 36" Endwall (4:1 Slope) - General Details. 
D-PE-36 Type "U" Cross Drain Endwall Foley 36" Endwall (6:1 Slope) - General Details. 
D-CB-10SB, D-CB-12SB, D-CB-13SB, D-CB-25SB, D-CB-28SB, D-CB-38SB, D-CB-39S, D-CB-41SB, and D-CB-42SB   4' X 4' Precast Catch Basin
D-CB-16S, D-CB-27S, D-CB-29SB, D-CB-40S, D-CB-43SB, and D-CB-45S Forterra
4' X 8' Precast Catch Basin
    4' X 4' & 4' X 8' - Design Calculation Precast Concrete Box Structure

3' X 4' & 3' X 8' Precast Catch Basin

3' X 4' & 3' X 8' Design Calculations -Precast Concrete Box Structure

Forterra  
32" X 32" Precast Catch Basin Forterra  

D-PE-15A & D-PE-15B

Oldcastle Precast

3:1 Slopes

4:1 Slopes

6:1 Slopes

D-PE-18A & D-PE-18B

Oldcastle Precast

3:1 Slopes

4:1 Slopes

6:1 Slopes

D-PE-24A & D-PE-24B

Oldcastle Precast

3:1 Slopes

4:1 Slopes

6:1 Slopes

D-PE-30A & D-PE-30B

Oldcastle Precast

3:1 Slopes

4:1 Slopes

6:1 Slopes (Not Approved)

D-PE-36A & D-PE-36B

Oldcastle Precast

3:1 Slopes (Not Approved)

4:1 Slopes

6:1 Slopes (Not Approved)

D-SEW-1A

Oldcastle Precast

18" Side Drains

24" Side Drains

D-PE-18A & D-PE-18B

Foley Products Company

3:1 Slopes

4:1 Slopes

6:1 Slopes

D-PE-24A & D-PE-24B

Foley Products Company

3:1 Slopes

4:1 Slopes

6:1 Slopes

Contact Information
If you find any mistakes, missing information or have a question, contact:
TDOT Design Division - Production Support
William R. Snodgrass Tennessee Tower, 10th Floor
                         312 Rosa L. Parks Avenue                           
 Nashville, TN 37243
TDOT.EngineeringProductionSupport@tn.gov

Tsehay Dessalgn, PE
Phone: 615-532-2614
Email: Tsehay.Dessalgn@tn.gov

This Page Last Updated: December 19, 2025 at 10:34 AM