Drainage Resource Materials
​3-Sided Culvert Policy
Example 3-sided culvert.dgnExample 3-sided culvertExample Microstation Sheets for 3-sided culverts
wing wall layout.dgnwing wall layoutGuidance for Wing Wall Layouts
KYTC Approved Three Sided Culverts.pdfKYTC Approved Three Sided CulvertsDrawings for approved culvert shapes
Preconstruction Policy for 3-Sided Culverts (draft)  2-21-13.docxPreconstruction Policy for 3-Sided Culverts (draft) 2-21-13Guidance Document for use of 3-sided culverts (draft)
​Calculation Tools
KTDID.zipKTDIDKYTC Computer Programs
IDF.ZIPIDFBased on Thiessen Regional Polygons
Excel Spreadsheets
Download .xlsm files by right-clicking the link selecting 'Save target as', using Internet Explorer 7+ or Firefox.
Channel Design Summary.xlsChannel Design SummarySummary of Ditch Design Analysis
Entrance Pipe Summary.xlsEntrance Pipe SummaryHydraulic Parameter Summary Sheet
Silt Trap Volumes.xlsSilt Trap VolumesSize Silt Traps along a Uniform Ditch Slope
TC61-504.xlsxTC61-504Bridge and Culvert Summary
Regional Method_2003h.xlsmRegional Method_2003hCalculates Rural Regional, Urban and Gage Based Flows
Rational Method Calculations16c.xlsmRational Method Calculations16cCalculates Design Flows based on NOAA intensities
Storm Sewer Capacity NOAA.xlsmStorm Sewer Capacity NOAADesign Storm Sewer System for non-pressure flow using current NOAA data
Curb Box Inlet Calculations_12-20-13.xlsCurb Box Inlet Calculations_12-20-13
Reference Documents
KY Floodplain Coordinators and Communities.xlsKY Floodplain Coordinators and CommunitiesContact List
Estimated Peak Gage Flows.docEstimated Peak Gage FlowsEstimated Peak flows at Selected Gages (WRIR 03-4180)
Ky Regional Map.pdfKy Regional MapRegional boundaries and Gage Site Locations (WRIR 03-4180)
Acid Mine Drainage.XLSAcid Mine DrainageListing of Known Acid Mine Drainage Locations in Kentucky
Jefferson County Flows.pdfJefferson County FlowsUSGS Regression flow Equations for Jefferson County (WRIR 97-4219)
KY Region Flow Method.pdfKY Region Flow MethodUSGS Regional Flow Method for KY, 2003 (WRIR 03-4180)
Software Applications
HECRAS.docHECRASHow to generate hydraulic sections in Microstation
KYTC Hydrologic Calculation Software Recommendations.pdfKYTC Hydrologic Calculation Software RecommendationsKYTC Hydrologic Calculation Software Recommendations
KyTC BMP Plan for projects let October 2006 and later.docKyTC BMP Plan for projects let October 2006 and laterKPDES BMP Plan as required by KPDES by KPDES Permit KYR 10
KyTC BMP Plan instructions.docKyTC BMP Plan instructionsInstructions for filling out BMP Plan
KyTC NOISW.docKyTC NOISWNotice of Intent for KPDES Permits with comments
NOISW.docNOISWNotice of Intent for KPDES Permits without comments
NOTSW.docNOTSWNotice of Termination Issued at Conclusion of Project, when project is stabilized
eNOI Walkthrough.pdfeNOI Walkthrough
bw aug 11 d and c memo.pdfbw aug 11 d and c memoDesign and Construction Guidance Memo
Special Note For Erosion Control as Lump Sum.docSpecial Note For Erosion Control as Lump Sum