Virginia Street Bridge at Truckee River Simulations

Transcription

1 Virginia Street Bridge at Truckee River Simulations Bridge Rehabilitation & Flood Bypass Channels Bridge Replacement CH2MHILL

2 VIRGINIA STREET BRIDGE

3 Example of Clear Span Conventional Highway Bridge Second Street over the Truckee River

4 Example of Two Span Conventional Highway Bridge Booth Street over the Truckee River

5 Example of Three Span Conventional Highway Bridge Center Street over the Truckee River

6 Example of Clear Span Signature Bridge Damen Avenue Bridge - Chicago

7 VIRGINIA STREET BRIDGE SCOPE OF WORK Provide Cost Estimates And Timelines For The Rehabilitation And Replacements Options Identified By THE ACOE For The Virginia Street Bridge ASSUMPTIONS A Rehabilitation Or Replacement Project Is Developed Under The Federal Highway Bridge Replacement And Rehabilitation Program (FHWA/NDOT)

8 VIRGINIA STREET BRIDGE SUMMARY Cost Estimates For Both Rehabilitation and Replacement Are Comparable To The ACOE s Estimates Timeline For Rehabilitation Is Approximately 7 To 8 Years To Complete Construction With Replacement Being Slightly Less

9 REQUIRED INCREASE IN VIRGINIA STREET ELEVATION AT THE TRUCKEE RIVER TO ACCOMMODATE REPLACEMENT ALTERNATIVES REPLACEMENT ALTERNATIVE CONVENTIONAL CLEAR SPAN BRIDGE LPP CONVENTIONAL TWO-SPAN BRIDGE LPP INCREASE IN ELEVATION (FEET) SIGNATURE BRIDGE LPP 5

10 Approximate Limits of Virginia Street Reconstruction For the Conventional Clear Span Bridge LPP w/ Floodwalls 9 Feet at Virginia Street Bridge

11 Approximate Limits of Virginia Street Reconstruction For the Signature Clear Span Bridge LPP w/ Floodwalls 5 Feet at Virginia Street Bridge For the Conventional Two- Span Bridge LPP w/ Floodwalls 5.5 Feet at Virginia Street Bridge

12 Rehabilitation Alternative 7 to 8 Years to Complete Construction Replacement Alternatives 6.5 to 7.56 Years to 7.5 to Years Complete to Complete Construction Construction Replacement Alternatives Time lines for Rehabilitation Alternative and Replacement Alternatives

13

14 HORSE FERRY THERE MAY HAVE BEEN A FERRY BEFORE THE BRIDGE WAS BUILT

15 WOODEN BRIDGE BUILT BY C.W. FULLER

16 IRON BRIDGE AT LAKE S CROSSING BUILT IN 1877 RIVERSIDE HOTEL & VIRGINIA STREET BRIDGE ABOUT 1903

17 VIRGINIA STREET BRIDGE COMPLETED 1905

18 Bridge Rehabilitation & Flood Bypass Concept overview southwest

19 Bridge Rehabilitation & Flood Bypass Concept looking northeast at flood bypass channel

20 Bridge Rehabilitation & Flood Bypass Concept looking southeast

21 Bridge Rehabilitation & Flood Bypass Concept looking southwest

22 Bridge Rehabilitation & Flood Bypass Concept looking northwest

23 Issues Flood Bypass Channel Construction would require extensive modifications to: - Truckee River Fountain Walk Plaza - Post Office Plaza Design - 10 North Virginia Plaza/Ice Rink pedestrian & vehicular systems - Remove the Masonic Office Building

24 Bridge Replacement Bridge Types best choices for flood mitigation through arch cable stayed, off-set pier no center pier

25 Issues Historic status of existing VA St. Bridge could influence replacement design. Replacement design is unlikely to have piers, which will improve flood capacity. New bridge could affect your ability to view up and down the river, keep bridge transparent to maintain river views.

26 Replacement bridge design should be coordinated with 10 North Virginia Plaza/Ice Rink cover for visual compatibility

27 Opportunities Replacement VA St. Bridge could be a new landmark for downtown Reno with unique design. A team including an experienced bridge designer should be used to derive a context based design solution. Look at the family of downtown river bridges during VA St. Bridge design process to ensure overall design compatibility since Sierra and Lake Street bridges are also scheduled for replacement.

28 ARCH BRIDGES

29 ARCH BRIDGES This type of bridge has a thin deck with support structures above.

30 ARCH BRIDGES Joseph M. Schneid COLUMBUS GATEWAY ARCH BRIDGE COLUMBUS INDIANA

31 STEEL TIED ARCH BRIDGE WES SMITH BRIDGE INDEX, WASHINGTON

32 RAINBOW ARCH BRIDGE REDFIELD RAINBOW ARCH BRIDGE REDFIELD, SOUTH DAKOTA

33 TUBULAR ARCH DAMEN AVENUE ARCH BRIDGE CHICAGO, ILLINOIS

34 TUBULAR TRUSS BIRMINGHAM BRIDGE

35 CABLE STAYED BRIDGES

36 CABLE STAYED BRIDGES PUENTE de la MUJER BRIDGE CALATRAVA PUENTE del ALAMILLO SEVILLE BOYNE CABLE STAYED BRIDGE IRELAND

37 CABLE STAYED BRIDGE SUNDIAL BRIDGE by CALAVERAS REDDING, CALIFORNIA

38 CABLE STAYED BRIDGE CALIFORNIA STREET BRIDGE MISSOULA, MONTANA

39 NIGHT LIGHTS

40 Bridge Replacement looking northeast

41 Bridge Replacement looking southeast

42 Bridge Replacement looking northwest

43 Bridge Replacement looking southwest

44 Bridge Replacement looking south at 1 st Street