New Hampshire
NHDOT Manual on Drainage Design for Highways
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Heuristic agency extract from prepared text. NHDOT Manual on Drainage Design for Highways
Fields not found in document: design_criteria.water_quality_volume_method, design_criteria.approved_bmp_categories
Document Metadata
Jurisdiction level
State
No evidence cited
State
New Hampshire
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, 10-year, 25-year, 50-year, 100-year
“ping now represents something less than 100 year and generally becomes less accurate with the increasing frequency and intensity”
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, Modified Rational Method
“............................ 3-10 3.2.1 Rational Method.........................................................................”
Hydrologic/hydraulic software
HydroCAD, HEC-HMS, HEC-RAS, HY-8, StormCAD
No evidence cited
Approved BMP categories
Not found in document
No evidence cited