atcs in db: minnesota dot’s perspective peter davich mndot design-build program manager 1
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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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