Bulk Bidding of Spans and Structures Annual Dirt & Gravel Roads Maintenance Workshop

Transcription

1 Bulk Bidding of Spans and Structures 2014 Annual Dirt & Gravel Roads Maintenance Workshop 1

2 Traditional Design Approach Bundled Approach Additional Considerations Introduction 2

3 Traditional Project Approach Field Scoping Gather Information Design Permitting Bidding Construction 3

4 Traditional Project Approach Field Scoping Determine Site/Operational Constraints Slopes Width Depth Geology Surrounding Infrastructure/Development Environmental Resources Wetlands & Watercourses Channel Condition/Access to Floodplain at Bankfull 4

5 Traditional Project Approach Gather Information Topographic Survey Utilities Identify Environmental Resources Identify Cultural/Historical Resources Geotechnical/Subsurface Investigation Specific FHWA Requirements for Geosynthetic Reinforced Soil Integrated Bridge System (GRS-IBS) Hydrologic Analysis 5

6 Traditional Project Approach Design Superstructure Abutments/Geotechnical (GRS-IBS Specific Requirements) Utility Relocation Hydraulic Analysis/Floodplain 6

7 Traditional Project Approach Permitting Waterways/Wetlands Stream Classification Drainage Area FEMA Mapped Floodplain Threatened & Endangered Species PHMC GP-11, GP7 or JPA Erosion and Sedimentation Pollution Control 7

8 Traditional Project Approach Bidding Design/Bid/Build Advertising Award 8

9 Traditional Project Approach Construction Construction Stakeout PA-One Call Regulatory Notifications Abutment/Wingwalls Shop Drawing Review Process Superstructure Inspection Substantial Completion Final Completion As-Builts 9

10 Bundled Project Approach Design Benefits Spread Cost on Non-Site Specific Design over Multiple Projects Increased Efficiency in Site Specific Tasks Shorter Schedules Construction Benefits Economies of Scale Spread Mobilization/Demobilization costs over Multiple Projects Shorter Schedule 10

11 Bundled Project Approach Design Benefits Spread Cost on Non-Site Specific Design over Multiple Projects Identify Groups of Projects by Span Length Perform Superstructure Design Based on Max roadway Slopes/Loads Saves Time and Cost in Design Process 11

12 Bundled Project Approach Design Benefits Increased Efficiency in Site Specific Tasks Save Travel Time for Field Work Gain Efficiency in Repetitive Technical Office Tasks 12

13 Bundled Project Approach Design Benefits Shorter Schedules Less Office Time for Site Specific Tasks Same Design Used for Multiple Sites 13

14 Bundled Project Approach Construction Benefits Economies of Scale Spread Mobilization/Demobilization costs over Multiple Projects Shorter Schedule 14

15 Additional Considerations Structure Types Alternate Delivery 15

16 Structure Types Site Conditions How does structure type correlate to your site? Purpose and Need Sediment Considerations Aquatic Passage Flooding Conditions Emergency Services ADT and Bridge Loads Single Lane Bridge Construction and Site Constraints Construction Access Embankments Streams Parallel Roadway 16

17 Structure Types Culverts 17

18 Structure Types Precast Reinforced Concrete Slab Reinforced Concrete Beams 18

19 Structure Types Prefabricated Steel Bridge Prefabricated Glue-Laminated Bridge 19

20 Structure Types Prestressed Concrete Plank Beams 20

21 Structure Types Right-Sizing Structures How does structure type correlate to span length? Spans less than 20-feet Spans between 20 to 30-feet Spans between 30 to 90-feet 21

22 Alternate Delivery Design Build Shortens Design & Construction Windows Less Plan Detail & Reduce Competitive Bid Tactics One Responsible Party Contractor Flexibility Which Adds Value & Lowers Cost 22

23 Conclusion Traditional Design Repetitive Processes Increased Cost Bundled Approach Design and Construction Savings Improve Processes Progress on Larger Scale Stretching Available Funding Additional Considerations Selecting Structure Types to Achieve Goals Design Build Delivery Method 23

24 Thank you Presenters: Additional Staff: Jeff Ream, PE Gannett Fleming, Inc Vice President Regional Office Manager 800 Leonard Street, Clearfield, PA Amber Winkler, PE, CBSI Gannett Fleming, Inc Transportation Manager Bridge Division 800 Leonard Street, Clearfield, PA Jason Reed Gannett Fleming, Inc Environmental Scientist 800 Leonard Street, Clearfield, PA Eric Deetscreek, PE Gannett Fleming, Inc Project Manager Bridge Division 800 Leonard Street, Clearfield, PA