Manufactured System Design w w w. t r a n s p o r t a t i o n . o h - PowerPoint PPT Presentation

Manufactured System Design w w w. t r a n s p o r t a t i o n . o h i o . g o v 1

Manufactured Systems L&D Vol. 2 Section 1117.1 Provides quality treatment only w w w. t r a n s p o r t a t i o n . o h i o . g o v 2

Manufactured System Treatment Processes w w w. t r a n s p o r t a t i o n . o h i o . g o v 3

Design Process Treatment Goals Siting Analysis Manufactured System Sizing Other Considerations w w w. t r a n s p o r t a t i o n . o h i o . g o v 4

Design Process Treatment Goals Siting Analysis Manufactured System Sizing Other Considerations w w w. t r a n s p o r t a t i o n . o h i o . g o v 5

Project Example Intersection improvement Add turn lane All within existing right-of-way w w w. t r a n s p o r t a t i o n . o h i o . g o v 6

Project Example w w w. t r a n s p o r t a t i o n . o h i o . g o v 7

Project Example – Treatment Goals Project EDA = 2.28 ac All within existing right-of-way A ix = 2.28 ac; A in = 0.0 ac T% = [(A ix x 20)+(A in x 100)] / (A ix + A in ) T% = [(2.28 x 20)+(0.0 x 100)] / (2.28 + 0) T% = 20% 20% x 2.28 ac = 0.46 ac w w w. t r a n s p o r t a t i o n . o h i o . g o v 8

Project Example – Treatment Goals Project EDA = 2.28 ac >= 1 ac Need a post-construction BMP All redevelopment Need to treat 0.46 ac (20%) All in existing right-of-way All existing right-of-way considered impervious Therefore no “new impervious area in new permanent right-of-way” Water quality treatment only required w w w. t r a n s p o r t a t i o n . o h i o . g o v 9

Design Process Treatment Goals Siting Analysis Manufactured System Sizing Other Considerations w w w. t r a n s p o r t a t i o n . o h i o . g o v 10

Siting Analysis Manufactured systems near storm sewers Avoid underground utilities Avoid pipes at depths greater than 10 ft Avoid trunk lines (pipes with WQ F greater than 6 cfs) Site system outside of paved areas for maintenance w w w. t r a n s p o r t a t i o n . o h i o . g o v 11

Footprint w w w. t r a n s p o r t a t i o n . o h i o . g o v 12

Maximum Depth w w w. t r a n s p o r t a t i o n . o h i o . g o v 13 Contech CDS Model 4045-8-C

Maximum Depth w w w. t r a n s p o r t a t i o n . o h i o . g o v 14 Image: Contech

No Trunk Lines w w w. t r a n s p o r t a t i o n . o h i o . g o v 15

Siting Analysis Tributary area = 12.42 ac Trib. Area within R/W = 1.94 ac w w w. t r a n s p o r t a t i o n . o h i o . g o v 16

Design Process Treatment Goals Siting Analysis Manufactured System Sizing Other Considerations w w w. t r a n s p o r t a t i o n . o h i o . g o v 17

Manufactured System Sizing Design after January 2019 Water Quality Flow (WQ F ): Q = CiA Calculate time of concentration to determine i T c = overland + shallow conc. + pipe flow T o = 16 min T s = 7 min T p = 2 min T c = 16 + 7 + 2 = 25 min w w w. t r a n s p o r t a t i o n . o h i o . g o v 18

w w w. t r a n s p o r t a t i o n . o h i o . g o v 19

Manufactured System Sizing Design after January 2019 Water Quality Flow (WQ F ): Q = CiA C = 0.41 i = 1.13 in/hr A = 12.42 ac. WQ F = 0.41 * 1.13 in/hr * 12.42 ac WQ F = 5.75 cfs ODOT Type 4 w w w. t r a n s p o r t a t i o n . o h i o . g o v 20

Manufactured System Sizing w w w. t r a n s p o r t a t i o n . o h i o . g o v 21

w w w. t r a n s p o r t a t i o n . o h i o . g o v 22

BMP Calcs Spreadsheet w w w. t r a n s p o r t a t i o n . o h i o . g o v 23

Design Process Treatment Goals Siting Analysis Manufactured System Sizing Other Considerations w w w. t r a n s p o r t a t i o n . o h i o . g o v 24

Sample Plan Note W103 w w w. t r a n s p o r t a t i o n . o h i o . g o v 25

Manufactured System Considerations Vacuum truck maintenance every 4 – 12 months Access and safety for maintenance crew Need to close lanes Max. depth of vac truck suction (~20 ft) Max. flow 6 cfs May need to separate off-site flows w w w. t r a n s p o r t a t i o n . o h i o . g o v 26

Manufactured System Considerations ODOT Qualified Products List – 31 Products Manufactured Water Quality Structure (SS- 995) Advance Drainage AquaShield Bio Clean Contech Environment 21 Hydro Int. All hydrodynamic separators w w w. t r a n s p o r t a t i o n . o h i o . g o v 27

Manufactured System Considerations Some Cartridge Filters: 80% TARP TSS Distribution Hydrodynamic Separators: 80% ODOT Sand, 50% TARP Catch Basin Inserts: May Capture > 200 microns Cartridge (Contech) Hydro. Sep. (Contech) Basin Insert (Contech) w w w. t r a n s p o r t a t i o n . o h i o . g o v 28

Research: Particle Size Distribution w w w. t r a n s p o r t a t i o n . o h i o . g o v 29 Image: 3P Technik UK

Research: Particle Size Distribution Sediment Particle Distributions 100 90 NJDEP 80 Test Percent Finer 70 US Silica 60 OK110 50 40 US Silica 30 F110 20 80% TSS 10 Removal 0 1 10 100 1,000 Particle Size (µm) w w w. t r a n s p o r t a t i o n . o h i o . g o v 30

Questions ? Jon Prier, P.E. jonathan.prier@dot.ohio.gov 614-644-1876 w w w. t r a n s p o r t a t i o n . o h i o . g o v 31