c ambium-inc .c om CAMBIUM CONSUL T ING & E NGINE E R ING E xc e ptional Se r vic e Guiding De c isions for a Be tte r F utur e
c ambium-inc .c om Ge ote c hnic al Inve stigation Various Gravel Roads Township of Douro- Dummer
Pur pose : • Asse ss the quality and c o nditio ns alo ng se ve n (7) pre - se le c te d g rave l surfac e d ro ads within the T o wnship • T e st sto c kpile d Granular M so urc e d fro m E dwards Pit and Winte r Sand fo r c o mpariso n to MT O spe c ific atio ns • Assist the T WP with re c o mme ndatio ns fo r impro ve me nt
R oad Se gme nt L oc ations Length 2018 Gravel Number of Road Name From To Pit Source Test Pits km Douro 5 th Line Road Centre Road Highway 28 1.3 Edwards 2 Douro 5 th Line Road Centre Road North Limit 1.3 Edwards 2 Douro 4 th Line Road County Road 4 North Limit 3.9 Edwards 6 Douro 2 nd Line Road Cedar Cross Road County Road 4 3.6 Edwards 6 4 th Line Rd S 3 rd Line Rd S Clifford Road 1.3 Edwards 2 Dummer Dummer Centre Fourth Line S Dummer Clifford Road 1.2 Edwards 2 Dummer Twelfth Line S Dummer Highway 7 North Limit 6.3 Drain 8
Stoc kpile d Mate r ial Material Source Number of Samples Granular M Edwards Pit 1 Winter Sand Warsaw Roads Department Depot 1
F ie ld Inve stigation and Sample Colle c tion: • May 3, 2019 - T e st Pit lo c atio ns we re marke d and visual o bse rvatio ns re c o rde d • May 21-22, 2019 - A to tal o f 28 T e st Pits we re advanc e d alo ng the 7 pre - se le c te d ro adways • Cambium re taine d a lo c al e xc avato r (bac kho e ) and te st pits we re e xc avate d in the driving lane ne ar e dg e o f ro ad • T he uppe r 100 mm o f g ranular mate rial was sample d fo r te sting . E xc avatio ns we re c o ntinue d to the unde rside o f the g ranular base to de te rmine de pth o f g ranulars and c o lle c t so me o f the subg rade mate rial
Visual Obse r vation of Road Conditions – May 03, 2019 Road Visual Condition – May 3, 2019 Centre Road Soft to firm surface, common potholes, slight ditch, tapered shoulders, parabolic to low A crown Very loose/soft surface, significant ruts in places, potholes, pooled water on surface, high shoulder Douro 5 th Line Road in places, no ditch in places – restricted flow, parabolic to flat crown Soft to firm surface, cracks in surface of roadway, minor rutting in places, severe potholes, pooled Douro 4 th Line Road water on surface, high shoulder in some areas, very shallow ditching with restricted flow in low swampy areas, low A crown with sporadic parabolic crown Soft to firm surface, minor rutting in places, severe potholes, pooled water on surface, high Douro 2 nd Line Road shoulders, shallow ditching to no ditch in places, flat low area, crown flat A shape in places to parabolic crown in others Mainly firm surface, some soft areas, some potholes, shallow ditching, tapered shoulders, pooled Clifford Road water on surface, low A crown Fourth Line S Soft to firm surface, common potholes, pooled water on surface, low flat to swampy area, shallow Dummer ditching, raised shoulder in places Twelfth Line S Very firm surface, smooth, no pooled water, no ditch, high shoulder in places, flat A shape crown Dummer to slightly parabolic
Road Observations – May 03 Douro 5 th Line Rd Douro 2 nd Line Rd Twelfth Line S Dummer
Test Pit Excavations – May 21 and 22 Douro 4 th Line – TP106 Centre Road – TP102 Twelfth Line S – TP128
T e st Me thods: Stoc kpile d Mate r ial • Granular M te ste d fo r c o mpariso n to OPSS 1010 spe c ific atio ns fo r ag g re g ate - Sie ve (g radatio n) to de te rmine partic le size distributio n - Physic al Pro pe rtie s Pe rc e nt Crushe d Partic le s Mic ro -De val Abrasio n (c o urse and fine ) Plastic F ine s Unc o nfine d F re e ze -T haw (no t in spe c ) • Winte r Sand te ste d fo r c o mpariso n to OPSS 1004 spe c ific atio ns - Sie ve (g radatio n) - Mic ro -De val Abrasio n (fine ) - Org anic I mpuritie s (no t in spe c )
L abor ator y R e sults: Sto c kpile d Granular M Sto c kpile d Winte r Sand Sieve (mm) % Passing* Granular M Sieve (mm) % Passing* Winter Sand Specification Specification 26.5 100.0 ‐ 9.5 99.7* 100 19.0 99.9* 100 6.7 98.5 97 – 100 13.2 92.8 75 – 95 4.75 93.7 90 – 100 9.5 80.7* 55 – 80 2.36 82.2 50 – 95 4.75 58.6* 35 – 55 1.18 71.1 20 – 90 1.18 38.8 15 – 40 0.600 54.4 0 – 70 0.300 26.2* 5 – 22 0.300 33.5 0 – 35 0.150 18.2* 0 – 15 0.150 19.3 ‐ 0.075 13.5* 2 – 8 0.075 11.7* 0 – 5 Laboratory Test Result Gran M Spec Laboratory Test Result Winter Sand Spec Percent Crushed 96% 60% min Micro‐Deval Abrasion 13.1% 25% max loss Micro‐Deval Abrasion 23.5% 25% max loss (Fine) (Course) Plastic Fines 0% N/A Micro‐Deval Abrasion 18.6% 30% max loss (Fine) Colour Chart Organic Impurities N/A Plastic Fines 0% 0% Reading 1 Unconfined Freeze‐ 11.7% N/A *do e s no t me e t OPSS 1004 spe c ific atio ns Thaw Loss *do e s no t me e t OPSS 1010 spe c ific atio ns Silts and Clays < 0.075 mm
T e st Me thods: T e st Pit Gr anular Sample s • Uppe r 100 mm o f Surfac e Granulars te ste d fo r c o mpariso n to OPSS 1010 spe c - All 28 te st pit sample s te ste d fo r Sie ve (g radatio n) - 1 sample fro m e ac h ro ad te ste d fo r physic al pro pe rtie s Pe rc e nt Crushe d Mic ro -De val (c o urse and fine ) Plastic F ine s Unc o nfine d F re e ze -thaw (no t is spe c ) • Subg rade Mate rial - 8 sample s fro m be lo w the e xisting surfac e g ranular mate rial we re se le c te d fo r Sie ve (g radatio n)
Gr adation Br e akdown of Road Sur fac e Gr anular s Silt and Test Pit ID Road Gravel % Sand % Meets OPSS Spec Clay % TP101‐19 GS1 Centre Road 28.1 54.7 17.2 Does Not Meet Spec – Gran M TP102‐19 GS1 Centre Road 26.0 59.1 14.9 Does Not Meet Spec – Gran M Douro 5 th Line Rd TP103‐19 GS1 34.9 47.8 17.3 Does Not Meet Spec – Gran M Douro 5 th Line Rd TP104‐19 GS1 31.7 54.1 14.2 Does Not Meet Spec – Gran M Douro 4 th Line Rd TP105‐19 GS1 43.4 39.7 16.7 Does Not Meet Spec – Gran M Douro 4 th Line Rd TP106‐19 GS1 35.8 48.8 15.4 Does Not Meet Spec – Gran M Douro 4 th Line Rd TP107‐19 GS1 29.2 53.5 17.3 Does Not Meet Spec – Gran M Douro 4 th Line Rd TP108‐19 GS1 39.0 44.8 16.2 Does Not Meet Spec – Gran M Douro 4 th Line Rd TP109‐19 GS1 47.6 34.1 13.5 Does Not Meet Spec – Gran M Douro 4 th Line Rd TP110‐19 GS1 36.6 50.1 13.3 Does Not Meet Spec – Gran M Douro 2 nd Line Rd TP111‐19 GS1 34.6 51.1 14.4 Does Not Meet Spec – Gran M Douro 2 nd Line Rd TP112‐19 GS1 29.6 54.6 15.8 Does Not Meet Spec – Gran M Douro 2 nd Line Rd TP113‐19 GS1 30.0 55.5 14.5 Does Not Meet Spec – Gran M Douro 2 nd Line Rd TP114‐19 GS1 42.1 48.9 9.0 Does Not Meet Spec – Gran M Douro 2 nd Line Rd TP115‐19 GS1 29.6 55.1 15.3 Does Not Meet Spec – Gran M Douro 2 nd Line Rd TP116‐19 GS1 33.4 52.0 14.6 Does Not Meet Spec – Gran M Silts and Clays < 0.075 mm OPSS Spec for Granular M and A allows 2 – 8 % passing 0.075 mm
Gr adation Br e akdown of Road Sur fac e Gr anular s Silt and Test Pit ID Road Gravel % Sand % Meets OPSS Spec Clay % TP117‐19 GS1 Clifford Road 27.9 59.3 12.8 Does Not Meet Spec – Gran M TP118‐19 GS1 Clifford Road 32.2 55.6 12.2 Does Not Meet Spec – Gran M TP119‐19 GS1 Fourth Line S Dummer 34.7 54.8 10.5 Does Not Meet Spec – Gran M TP120‐19 GS1 Fourth Line S Dummer 42.0 48.7 9.3 Does Not Meet Spec – Gran M TP121‐19 GS1 Twelfth Line S Dummer 29.7 53.2 17.1 Does Not Meet Spec – Gran A TP122‐19 GS1 Twelfth Line S Dummer 53.7 39.9 6.4 Meets Spec – Gran A TP123‐19 GS1 Twelfth Line S Dummer 31.0 52.1 16.9 Does Not Meet Spec – Gran A TP124‐19 GS1 Twelfth Line S Dummer 46.7 44.0 9.3 Does Not Meet Spec – Gran A TP125‐19 GS1 Twelfth Line S Dummer 51.6 40.0 8.4 Meets Spec – Gran A TP126‐19 GS1 Twelfth Line S Dummer 58.2 36.3 5.5 Meets Spec – Gran A TP127‐19 GS1 Twelfth Line S Dummer 54.9 38.3 6.8 Meets Spec – Gran A TP128‐19 GS1 Twelfth Line S Dummer 55.9 38.9 5.7 Meets Spec – Gran A Silts and Clays < 0.075 mm OPSS Spec for Granular M and A allows 2 – 8 % passing 0.075 mm
Summar y of F indings: • I n g e ne ral, T we lfth L ine S was o bse rve d to be in sig nific antly be tte r c o nditio n than all o the r ro ads. T we lfth L ine was firm, had no po o ling o f wate r o n surfac e , minimal po tho le s, no visible rutting Do uro 5 th L • ine Rd was fo und to be in the wo rst c o nditio n at the time o f the inve stig atio n with se ve re po tho le s, rutting , po o ling o f wate r • Granular sample s fro m all ro ad se g me nts we re fo und to me e t OPSS 1010 spe c ific atio ns fo r Physic al pro pe rtie s (% c rushe d, mic ro -de val, plastic fine s) • Sie ve analysis re sults indic ate all sample s fro m ro ads c o ve re d with g ranular fro m E dwards Pit c o ntaine d to o many fine s passing 0.075 mm sie ve (silts and c lays) • Sinc e the ro ads are in use , we wo uld e xpe c t so me de te rio ratio n o ve r time , ho we ve r the mate rial use d fro m the so urc e sto c kpile at E dwards Pit did no t me e t spe c ific atio n fo r sie ve analysis
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