Stormwater Atlas

Delaware

DelDOT Road Design Manual Ch.6 Drainage and Stormwater Management

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Heuristic agency extract from prepared text. DelDOT Road Design Manual Ch.6 Drainage and Stormwater Management Pipeline excerpt repair removed 1 unlocated citation(s).

Fields not found in document: design_criteria.water_quality_volume_method, document_metadata.jurisdiction_name
Other manuals in Delaware: City of Dover, City of Wilmington, Delaware

Document Metadata

Jurisdiction level
State

No evidence cited

State
Delaware

No evidence cited

Version / edition
Not found in document

No evidence cited

Adoption / effective date
Not found in document

No evidence cited

Last revised date
Not found in document

No evidence cited

Relationship to state manual
independent

No evidence cited

Design Criteria

Design storm return periods (years)
2-year, 5-year, 10-year, 25-year, 50-year, 100-year, 500-year

“http://msc.fema.gov), if available, for 100-year flood plain location and elevation; • Existing drainage facilities with design”

Water quality volume method
Not found in document

No evidence cited

Peak flow calculation method(s)
Rational Method, NRCS / SCS Curve Number (TR-55), TR-20, HEC-HMS, HEC-RAS

“ds of hydrological analysis include the Rational Method; TR-20 Project Formulation Hydrology Program System; TR- 55 Urban Hydrol”

Hydrologic/hydraulic software
HEC-HMS, HEC-RAS, PondPack

No evidence cited

Approved BMP categories
Bioretention, Filter Strip

“program HEC-RAS is recommended. iii. Filter strips, biofiltration swales, bioretention areas and infiltration ditches are designed using DURMM, DNREC’s green technology computer model based on a combination of computer routines from TR-22 and TR-55. b. Pavement (Storm) Drainag”

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