ATCs in DB:Minnesota DOT’s Perspective

Peter DavichMnDOT Design-Build Program Manager

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MnDOT: ATC Statistics

DB Projects with ATCs: 22 since 2002Total ATCs Submitted: 570Total ATCs Approved: 352 (62%)Total ATCs Approved Without Conditions: 80 (14%)ATC Utilization Rate (Incorporated into Tech Proposal): 94%ATC Categories with the Highest Success Rates:

Geotechnical – 79%Grading – 74%Materials/Walls – 71%

ATC Categories with the Lowest Success Rates:Paving – 46% (MnDOT now disallows some paving ATCs)Geometrics – 49%Electrical – 50%

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MnDOT: ATC Graphs

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ROC 52

494

212

Orono

co10

/32

35W

TH 610

BOMC

St Pet

er

Hastin

gs

Elk Run

13/1

01

169/

494

TH 55

Mar

yland

St Cro

ix

35E M

nPASS

TH52/C

R9

I-35W

/4th

St

I-94

RICW

S

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

49%

58%49%49%

75%74%67%67%

40%

80%84%

71%

100%

50%

85%

46%

79%

67%

89%84%

75%

MnDOT ATC Approval Rate2002 to Present

MnDOT: ATC Graphs Continued

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Paving5%

Drainage6%

Geometrics27%

Traffic15%Grading

3%Materials

3%

Utilities1%

Miscellaneous5%

Walls8%

Bridge24%

Geotechnical2%

ATC Submittals by Category

MnDOT: ATC Cost Statistics*

ATC Cost Savings over the Life of MnDOT’s DB Program:$45.0 million

Cost Savings of all Approved ATCs (including unsuccessful teams): $107.4 millionIndividual ATCs with Largest Cost Savings:

Hastings ATC#2 “Tied Arch Alternate” $4,600,000

169/494 ATC#4 “Move Ramp G”$3,000,000

TH 212 ATC#1 “TH 212 Profile Grade Change$2,300,000Recent Project Total ATC Cost Savings:

I94 Reconstruction$1,555,000

I-35E MnPASS$3,375,000

TH 169/494 Interchange$6,545,000

*Note: Cost savings are as estimated by DB Teams

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MnDOT: Two-Stage One-on-One Meetings

• Offer meetings ~3 weeks into procurement• “Dead on Arrival” or “Entertainable”• Bring appropriate personnel

- Keep meetings small, 5-on-5?- Maintain confidentiality

• No: note-takingcoaching (but should point out risk

areas)‘stealing’ ideas (even for some

mistakes)clarifications, unless ATC-relateddiscussion of scoring

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MnDOT: ATC Process Continued

• # of ATCs limited (5-25)• Identify appropriate

reviewers, read details carefully and write conditions carefully

• Management reviews: protect DOT interests and promote innovation

• Respond within 7-10 days

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MnDOT: Pre-Approved Elements (PAE)

• Can be thought of as a required ATC – Designed to mitigate risk for both parties– “Approved” vs “Equal or Better”– Back-and-forth discussion (“coaching”) is

allowed…and necessary.

• MnDOT Applications– Hastings Bridge: Redundancy, Scour, Fixity,

Analysis Method– TH 610: Pavement Design

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MnDOT Resources

• Instructions to Proposers template (ATC Process): – http://www.dot.state.mn.us/designbuild/itp.html

• General Design-Build Information (Laws, Project Info, Etc) – http://www.dot.state.mn.us/designbuild/

• Forms/Other:– http://www.dot.state.mn.us/designbuild/DBmanual.html– Form 2.4a for Confidentiality Template– Form 4.9a for ATC Log, 4.9b for ATC Approval Template

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