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Dardanelle vicinity

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Middle Fork Stanislaus River Bridge, Spans Middle Fork Stanislaus River at State Highwa, Dardanelle, Tuolumne County, CA



See 19 maps of this location


B&W Photos

HB132881
Contextual View Of Bridge In Its Setting, Looking Northwest From Upstream

HB132882
Contextual View Of Bridge In Its Setting, Looking Southeast From Downstream

HB132883
Contextual View Of Bridge In Its Setting, Looking Southeast From Downstream

HB132884
Oblique View Of Upstream Elevation, Looking Northwest

HB132885
Oblique View Of Upstream Elevation, Looking West-northwest

HB132886
View Of Downstream Elevation, Looking Southeast

HB132887
View Of Downstream Elevation, Looking Southeast

HB132888
Approach View To Bridge, Looking East-northeast

HB132889
Approach View To Bridge, Looking West Southwest

HB132890
View Of Understructure, Showing Timber Scissors Truss, Floor Beams, And Wooden Deck Soffit, Looking West-southwest

HB132891
Detail View Of Understructure, Showing Timber Truss End Posts And Top Chord, Tension Rods, And Truss Footings, Looking Northeast

HB132892
Detail View Of Understructure, Showing Timber Truss End Posts, Top Chord, Gusset Plates, Tension Rods, Transverse Beam, And Floor Beam, Looking Northeast

HB132893
Detail View Of Understructure, Showing West Abutment, Floor Beams, And Wooden Deck Soffit, Looking West-southwest

HB132894
Detail View Of Bridge, Looking North, Showing Damage To Floor Beams And Deck Of West Approach Span, Caused When Contractor's Forces, Working On Adjacent Abutment For Replacement Bridge, Dynamited Granite Boulders Into Upstream Side Of Historic Bridge

HB132895
Detail View Of Understructure, Showing Damage To Floor Beams And Deck Of West Approach Span, Looking East

HB132896
Detail View Of Damaged Area Of West Approach Span, Showing Remaining Granite Outcrop Being Broken Up By Hydraulic Hammer Mounted On A Backhoe, Looking East-northeast

HB132897
Detail View Showing Metal Deck Plates Covering Damaged Area Of West Approach Span

HB132898
Detail View Of Damaged Area Of West Approach Span, Showing Granite Outcrop Being Removed, Looking East-southeast

HB132899
Overview Showing Removal Of Granite Outcrop, Following Damage To Bridge, Looking Northeast

HB132900
Detail View Showing Removal Of Granite Outcrop, Following Damage To Bridge, Looking Northeast


Data Pages


Photo Caption Pages


Item Title


Location
Spans Middle Fork Stanislaus River at State Highwa, Dardanelle vicinity, CA

Find maps of Dardanelle, CA


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER CA-72
Significance: The Middle Fork Stanislaus River Bridge, also known as the Dardanelle Bridge, represents the last known timber scissors truss -- a bridge type well suited for quick erection in rugged locations without the use of falsework -- in California. It was determined eligible for inclusion in the National Register of Historic Places at the State level under criterion C in 1987.

Subjects
Bridges


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. CONTEXTUAL VIEW OF BRIDGE IN ITS SETTING, LOOKING NORTHWEST FROM UPSTREAM
2. CONTEXTUAL VIEW OF BRIDGE IN ITS SETTING, LOOKING SOUTHEAST FROM DOWNSTREAM
3. CONTEXTUAL VIEW OF BRIDGE IN ITS SETTING, LOOKING SOUTHEAST FROM DOWNSTREAM
4. OBLIQUE VIEW OF UPSTREAM ELEVATION, LOOKING NORTHWEST
5. OBLIQUE VIEW OF UPSTREAM ELEVATION, LOOKING WEST-NORTHWEST
6. VIEW OF DOWNSTREAM ELEVATION, LOOKING SOUTHEAST
7. VIEW OF DOWNSTREAM ELEVATION, LOOKING SOUTHEAST
8. APPROACH VIEW TO BRIDGE, LOOKING EAST-NORTHEAST
9. APPROACH VIEW TO BRIDGE, LOOKING WEST SOUTHWEST
10. VIEW OF UNDERSTRUCTURE, SHOWING TIMBER SCISSORS TRUSS, FLOOR BEAMS, AND WOODEN DECK SOFFIT, LOOKING WEST-SOUTHWEST
11. DETAIL VIEW OF UNDERSTRUCTURE, SHOWING TIMBER TRUSS END POSTS AND TOP CHORD, TENSION RODS, AND TRUSS FOOTINGS, LOOKING NORTHEAST
12. DETAIL VIEW OF UNDERSTRUCTURE, SHOWING TIMBER TRUSS END POSTS, TOP CHORD, GUSSET PLATES, TENSION RODS, TRANSVERSE BEAM, AND FLOOR BEAM, LOOKING NORTHEAST
13. DETAIL VIEW OF UNDERSTRUCTURE, SHOWING WEST ABUTMENT, FLOOR BEAMS, AND WOODEN DECK SOFFIT, LOOKING WEST-SOUTHWEST
14. DETAIL VIEW OF BRIDGE, LOOKING NORTH, SHOWING DAMAGE TO FLOOR BEAMS AND DECK OF WEST APPROACH SPAN, CAUSED WHEN CONTRACTOR'S FORCES, WORKING ON ADJACENT ABUTMENT FOR REPLACEMENT BRIDGE, DYNAMITED GRANITE BOULDERS INTO UPSTREAM SIDE OF HISTORIC BRIDGE
15. DETAIL VIEW OF UNDERSTRUCTURE, SHOWING DAMAGE TO FLOOR BEAMS AND DECK OF WEST APPROACH SPAN, LOOKING EAST
16. DETAIL VIEW OF DAMAGED AREA OF WEST APPROACH SPAN, SHOWING REMAINING GRANITE OUTCROP BEING BROKEN UP BY HYDRAULIC HAMMER MOUNTED ON A BACKHOE, LOOKING EAST-NORTHEAST
17. DETAIL VIEW SHOWING METAL DECK PLATES COVERING DAMAGED AREA OF WEST APPROACH SPAN
18. DETAIL VIEW OF DAMAGED AREA OF WEST APPROACH SPAN, SHOWING GRANITE OUTCROP BEING REMOVED, LOOKING EAST-SOUTHEAST
19. OVERVIEW SHOWING REMOVAL OF GRANITE OUTCROP, FOLLOWING DAMAGE TO BRIDGE, LOOKING NORTHEAST
20. DETAIL VIEW SHOWING REMOVAL OF GRANITE OUTCROP, FOLLOWING DAMAGE TO BRIDGE, LOOKING NORTHEAST


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