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ATP Presentation Series Pavement Materials Selection Process Cody Brand | Soils Engineer District 8 6/23/2017

ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

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Page 1: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

ATP Presentation SeriesPavement Materials Selection Process

Cody Brand | Soils Engineer

District 8

6/23/2017

Page 2: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

ATP Presentation Series

2

1. MnDOT Statewide Planning

2. Performance Measures & Funding Programs

a) Pavement & Materials Selection Process

3. Project Selection Processes

4. Project Scoping

5. STIP Overview and Approval Process

You are here!

Page 3: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Overview

3

• Reconnaissance

• Current & Predicted Pavement Conditions

• Effects of Pavement Resurfacing

• Cost of Pavement Resurfacing

• Network Analysis

• Project Selection

Page 4: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Reconnaissance

• Historic Plans

• Technical Information

• Falling Weight Deflectometer (FWD)

• Coring

• Past Pavement Condition

• Projected Pavement Condition

4

Focus For Today

Page 5: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Pavement Conditions

5

60

.6%

74

.4%

86

.1%

73

.1%

73

.2%

55

.0%

73

.8%

71

.4%

71

.5%

58

.0%

56

.9%

74

.4%

69

.2%

72

.2%

60

.4% 66

.4%

57

.9% 64

.7%

68

.4%

70

.5%

88

.7%

71

.9%

68

.5%

61

.3%

56

.6%

78

.5%

71

.7%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide

Pe

rce

nt

of

Ro

adw

ay M

iles

"Good" Ride Quality Index, Non-Interstate NHS System(RQI > 3.0)

Actual 2016 Predicted 2021 (2018-2021 STIP) Predicted 2027 (2022-2027 CHIP)

Page 6: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Pavement Conditions

6

3.8

%

0.8

%

0.7

%

0.8

%

1.9

%

4.4

%

1.7

%

1.6

%

2.0

%

10

.4%

4.1

%

3.0

%

6.4

%

4.8

% 5.5

%

8.0

%

5.0

% 5.9

%

7.9

% 8.8

%

1.5

%

5.2

%

8.8

%

10

.9%

9.6

%

4.8

%

6.8

%

0%

2%

4%

6%

8%

10%

12%

14%

16%

18%

20%

ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide

Pe

rce

nt

of

Ro

adw

ay M

iles

"Poor" Ride Quality Index, Non-Interstate NHS System(RQI <= 2.0)

Actual 2016 Predicted 2021 (2018-2021 STIP) Predicted 2027 (2022-2027 CHIP)

Page 7: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Pavement Conditions

7

49

.0%

85

.1%

69

.5%

73

.2%

74

.8%

34

.8%

76

.7%

53

.7%

65

.8%

63

.3%

62

.8%

65

.2%

63

.4%

73

.9%

40

.8%

70

.1%

49

.2%

62

.1%

75

.7%

57

.6%

71

.4%

63

.9%

77

.6%

67

.1%

58

.0%

73

.7%

67

.9%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide

Pe

rce

nt

of

Ro

adw

ay M

iles

"Good" Ride Quality Index, Non-NHS System(RQI > 3.0)

Actual 2016 Predicted 2021 (2018-2021 STIP) Predicted 2027 (2022-2027 CHIP)

Page 8: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Pavement Conditions

8

17

.5%

1.0

%

3.4

%

0.6

%

3.1

%

8.4

%

1.0

%

8.3

%

5.5

%

13

.3%

4.8

%

2.5

%

4.3

%

8.9

%

26

.6%

3.9

%

12

.7%

9.3

%

9.0

%

12

.7%

6.0

% 8.2

%

6.1

%

16

.3%

4.8

%

9.0

%

9.1

%

0%

5%

10%

15%

20%

25%

30%

ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide

Pe

rce

nt

of

Ro

adw

ay M

iles

"Poor" Ride Quality Index, Non-NHS System(RQI <= 2.0)

Actual 2016 Predicted 2021 (2018-2021 STIP) Predicted 2027 (2022-2027 CHIP)

Page 9: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Projecting Pavement Conditions

9

Rid

e Q

ual

ity

Ind

ex

Year

Page 10: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Projecting Pavement Conditions

10

Rid

e Q

ual

ity

Ind

ex

Year

Page 11: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Defining “Pavement Condition”

• Measures include:

• Ride Quality Index (RQI)

• Remaining Service Life (RSL)

• Surface Rating (SR)

• Crack Counts

11

What the Public Sees

Page 12: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Pavement Distress Identification

12

Page 13: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Effects of Resurfacing

• Examine performance of:

• Major Rehabilitation

• Cold In-place Recycle (CIR)

• Medium mill & overlay

• Thin Surface Treatments

• Ultra-thin Bonded Wearing Course (UTBWC)

• Micro-milling

13

Paver

5/8” – 1.0”Thickness

Page 14: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Effects of Resurfacing - CIR

14

Low

Sev

erit

y Tr

ansv

erse

cra

cks

/ 5

00

Year 18 + years

Page 15: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Effects of Resurfacing – Medium M&O

15

Low

Sev

erit

y Tr

ansv

erse

cra

cks

/ 5

00

Year 11 years

Page 16: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Cost of Resurfacing

• Cold In-place Recycle

• $ 250,000 / mile

• Detour may be needed

• CIR mix design may need to be performed by a consultant

• CIR doesn’t work well in urban sections

• Medium Mill and Overlay

• $ 225,000 / mile

• Detour not required

16

Page 17: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Cost of Resurfacing

• Full Depth Reclamation / Stabilized Full Depth Reclamation

• $ 350,000 / mile

• Detour required

• Ground Penetrating Radar should be performed by consultant

• White-topping

• $ 300,000 – $ 600,000 / mile

• Detour required

• Ground Penetrating Radar should be performed by consultant

• More complex deliverability17

Page 18: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Effects of Resurfacing – UTBWC

18

Rid

e Q

ual

ity

Ind

ex

Year Year

No Ultra-Thin Bonded Wearing Course

Ultra-Thin Bonded Wearing Course

Page 19: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Effects of Resurfacing – Micro-milling

19

Year 0 RQI Year 1 RQI Year 3 RQI

Micro-mill & Chip Seal 3.3 3.4 3.4

Micro-mill & Micro-Surfacing* 2.3 3.7 3.2

Micro-mill & UTBWC 2.9 3.9 3.5

NRRA micro-milling case study on 3 MN trunk highways between 2013 – 2016.*Polymer Modified Micro-Surfacing

• RQI on traditional mill and overlay projects ranges from 4.2 – 3.6

• Other Thin Surface Treatments to Consider:

• Double chip seal

• ThinLay

Page 20: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Cost of Resurfacing

• Ultra-thin Bonded Wearing Course

• $ 100,000 / mile

• Potential for snow and ice issues in wind-blown locations

• Micro-milling

• $ 15,000 / mile (additional cost)

• ThinLay

• $ 65,000 / mile

20

Page 21: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Benefits of Thin Surface Treatments

21

• Program Flexibility

• Can be advanced or delayed with minimal impact

• No profile raise:

• Reduces the cost of shouldering

• Reduces the cost of entrances / intersection

• Preserves in-slope

• “Easy” deliverability

• Design and Inspection

• Shorter duration

Page 22: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Network Analysis

• Highway Pavement Management Application (HPMA)

• Uses a decision tree to determine the appropriate rehabilitation strategy for each segment. Triggers include:

• Ride Quality Index

• Surface Rating

• Transverse Cracking

• Alligator Cracking

• Fiscal constrains are used to determine the most cost effective projects

22

Page 23: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

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Page 24: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Project Selection

• HPMA network analysis is verified or revised by District

• Past project performance

• Recent regional experience

• Research and literature

• Projects are selected based on funding targets and performance measures

• Process is repeated annually for program development

• Also repeated within the fiscal year

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Page 25: ATP Presentation Series Pavement Materials Selection Process Presentation Series... · ATP-1 ATP-2 ATP-3 ATP-4 ATP-6 ATP-7 ATP-8 Metro Statewide ... •Double chip seal •ThinLay

Thank you!Questions?

Cody Brand

[email protected]

320-214-6366

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