Columbia River Bridge Rehabilitation

Dario Gnoato

Presentation Outline

■  Job Overview ■ Traffic Management ■ Deck Demolition & Surface Preparation ■ Concrete Paving ■  Steel Installation ■ Conclusion

Job Overview ■  Job Location: Revelstoke, BC

■  Job Start: Sept 7, 1999

■  Job Value: $1.16 Million

■  Job Consisted of:

■  Removing 125m3 of road surface overlay

■  Repairing Subsurface Concrete Cracks

■  Batching and Placing 125m3 of SFRC Overlay

■  Installing 120,000lbs of miscellaneous steel

Elevation

308m (1010)

General Arrangement

P1 P2

P3 P4

Elevation and Plan Views

7.3m deck width = 2 - 12ft wide lanes

Traffic Management

■ Ministry advised Kiewit that the Traffic Management Plan was EXTREMELY Important

■  600 vehicles/hr

Principle Traffic Concerns

■  Safety ■  Emergency preparedness ■ Motorist advisories ■  ZERO full bridge closures ■ Minimize impact on local businesses ■ Minimize wide load advisories

Experienced Traffic Personnel

Traffic/Worker Proximity ■  Min. paving width = 12ft

■  Max. allowable lane closure width = 13 ft

Deck Demolition

■ Remove 125m3 of existing overlay ■  2 stages

■  scarify top 40 mm

■  hydro demo the last 15 mm

Existing Deck Detail

Stage 1 - Scarifying CAT PR-453

Stage 2 - Hydro Demolition

German made WOMA Pump

700hp Cummins Generator

Peak Flow

Concrete

■ Batching ■ Grouting ■ Deck Paving

Batch Plant ■ 125m^3

1 YD^3 bags

opening

Grouting

Concrete Paving Paver - Bidwell OF-500

Rail on 2x6

Rail on cups

Steel

■ Deck Joints ■  Inspection Panels ■ Girder Drains ■  Suspended Span Drains ■ Drain Troughs ■ Bearings

Deck Joints ■  3 total

■  7.3m (28ft) each

Inspection Panels

■  378 total

■  92 support struts

Gouging

Torching

3,100 - 3/4” holes

Girder Drains ■ 14 total

■ 300# each

■ 1/2 over water

■ 1/2 over land

Over Water Access - 40ft swing stage

1st 2nd

3rd 4th

Suspended Span Drain

■  70 total

■  300# each

1st 2nd

3rd

Drain Troughs ■  3 total

■  24 pcs. each

Bearings

■  8 total

■  1500# each

1st 2nd

3rd 4th

The Crew