FDOT Standard Plans Index 425-040: Gutter Inlet Type S

Design Criteria

Design Criteria and Guidance FDOT Design Manual (FDM) ; Drainage Manual (DM) ; Drainage Design Guide (DDG)

Design Assumptions and Limitations

Design Assumptions and Limitations Type S inlets are intended for use in shoulder gutter on facilities subject to heavy wheel loads (H-20). Type V Inlets are intended for use in valley gutter. This inlet is suitable for village swales, ditches, or other areas subject to heavy wheel loads and minimum debris.

This inlet may be placed in areas subject to occasional pedestrian traffic such as landscaped areas and pavement areas where pedestrians can walk around the inlet. This inlet is not for use in a bicycle way.

Payment

Payment Item number Item Description Unit Measure 425-70B Gutter Type S EA 425-71B Gutter Type V EA Gutter Transitions are paid for under the Gutter pay item. See the BOE and Specification 425 for additional information on payment, pay item use and compensation. RECOMMENDED MAXIMUM PIPE SIZES Inlet Inside Width Pipe Size 2'-11" or 3'-3 24" 3'-10" or 4'-0" 30" Note: Recommended sizes are based on concrete pipe.

Sizes for other types of pipe must be verified for fit in accordance with Index 425-001 . For larger pipe use J-Bottom, See Index 425-010 .

What your plans must show

Plan Content Requirements for this index — the SPI's checklist for designers.

• Include Drainage Structure information in the Plans in accordance with the requirements of the Basis of Estimates Manual ( BOE ) and the FDM. Require the reticuline grate option for Type S inlets in locations where bicycle traffic is anticipated. Specify Alt. G grates when galvanized grates are required.