5. Life Cycle
Cost
Maintenance can
provide Life Cycle Cost
using the following
resources:
•Historical info.
•Asset Management
•Truck Stations
•Other MN DOT
Resources
6. Value Engineering
Studies
Maintenance will help bring
unique perspectives:
•Rural vs. Urban
•Steep slope vs. Retaining wall
•Pond vs. Underground storage
•Guardrail vs. Barrier
•Lining vs. Replacement Culvert
•Paved vs. Grassy Median
7. Sample feedback
“Existing 24 inch culvert was
plugged and abandoned in 1973….
…”
“I-35W NB approx. 300 ft. before
the Lexington exit there is a need
for soil correction @ RT. shoulder “
“The Ramp from EB 10 to 35W
south is too sharp …we have quite
a few rollovers….”
8. Trends in
Construction
• FHWA Funding
• Small mini ponds
• Traffic Detours and
Construction Staging
• Scheduling
• Contract Delivery
Methods for Mega
Projects
• Substantial Completion
9. Sample Project Scoping: SP 6284-172
Sequence of events 2014 – 2019:
Dec 2014: Life Cycle Cost
Jan 2015: Scoping Database
Sep 2015: Field Inspection
Oct 2015: VE Study
Nov 2015: Anti-icing Proposal
2016 – 2017: Plan Reviews (30%,
60%, & 90%)
2018 – 2019: Pre-activity Meetings
“Construction”
Maintenance staff involvement through Project Development process is critical; Planning, Design, and Construction
As Life Cycle Experts, Maintenance would like to perform routine maintenance instead reconstruct pavement or repair slope failure shortly after construction completion.
Maintenance will fix stuff after normal wear and tear but is not set-up to do reconstruction after major construction project is completed.
Attend Value Engineering Studies
Provide input during Project Development Process (Layout, Design, and Construction)
Conduct field walk to identify Maintenance issues
Complete Project Scoping Database
Observe trends in Construction Projects and Its impacts on routine Maintenance & Operations
Picture: Gutter lines are overlaid to the top of curb causing washouts.
Incorporate Constructability and Maintainability in Value Engineering Studies
1920s ….1940s Getting out of the MUD
1950s …. 1970s Build 4 lanes w/o Stop Signs
1980s …. 2000s Get it Done & Stay out
Maintenance brings to the table: crash history, maintenance personnel experience, feedback about maintainability.
Maintenance Personnel field experience
Easy to maintain?
Accessibility?
Safety?
Durability?
Slippery conditions during S&I?
Regional Ponds will function properly and provide flatter slopes for equipment access… guardrail is not warranted
Project Manager may choose to line pipe culvert instead of replace to avoid traffic detours
Deep excavation and the implication of reaching contaminated soils may lead to compromise at the expense of maintenance
During Design Build Project, there is an opportunity to incorporate Maintainability and Constructability during project development.
Funding for rehab vs. major construction (Maintenance has limited funding)
Small mini ponds to treat water within MN DOT R/W.
Traffic Detours and Construction Staging sometimes dictate design options
P6 Scheduling and the pressure to meet Project Letting Date translate may impact project quality
More DB and CMGC mega Projects
After substantial completion, Contractors don’t come and clean up or remove erosion BMPs and maintenance end up doing the work
picture: Curb lines on most bridges stop at steep banks and Maintenance Mason Crews extend them to reach flatter slopes.
