field review report · 2015-05-05 · field review report d ate 06/09/05 f eature ... type: open...
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FIELD REVIEW REPORT D ate
06/09/05
F eature Crossed Pajaro River
L oad Rating
E-55
M P
1.06b
Year Built
1906 Width
17’-5” Length
300’ No. of Spans
5 Cols/Bent
2
CT Br. No.
N/A Dist.
04
Co.
SCr
Route
N/A
Suff. Rate N/A
Attendees Firm/District
Anthony P. Notaro
Biggs Cardosa Associates, Inc.
David Chan
Biggs Cardosa Associates, Inc.
Jay Ybarra (Flagman)
Union Pacific Railroad
Structure Components
Description
Superstructure
Superstruct type: 5 span open deck riveted steel plate through girder No. tracks: 1 Ballast depth: Open deck with 10”x 12” ties Structure depth: 6’-5” deep exterior riveted steel plate through
girders with 20” deep steel stringers below the ties Max. span: 60’-0” Min. span: 60’-0” Skew: 0o Drainage: Open deck. No visible ponding. Condition: Fair (paint has worn away, rust patches visible
throughout)
Pier 1 Cap Beam: HP14x Piling: Four HP14x 73 vertical piles Bracing: Double angle cross bracing Bearings: Riveted steel plate bearings Clear Height: 10 ft Condition: Fair
Pier 2 - 5 Cap Beam: 5.0 ft deep by 3.5 ft concrete beam Piling/column: Two 6.0 ft dia. steel jacketed concrete pile
columns (depth unknown) Bracing: Double angle cross bracing Bearings: Built-up steel bearing assemblies Clear Height: Varies Condition: Fair
Pier 6 Cap Beam: 4.0 ft min deep by 3.5 ft concrete beam Piling/column: Two 6.0 ft dia. steel jacketed concrete pile
columns (depth unknown) Bracing: Riveted steel girder (3’-9” web with 12” flanges) Bearings: Built-up steel bearing assemblies
Structure Components
Description
Clear Height: 8.5 ft (to steel plate girder); 8.0 (to timber stringer) Condition: Fair
Railings (type, etc.) Rails: N/A Posts: N/A Condition: N/A
Walkways (type, etc.) Type: Open steel grating supported on rail tie extensions Condition: Fair
Hinges None
Restrainers/Soffit Opening Locations
None
Bridge Deck Overlays Timber rail ties replaced as required in 1996
Approaches Slabs: None Railings: None Sidewalks: None
Embankment Erosion None
Slope Paving None
Construction access to structural components
Open
Unique Features None
Visible Damage/ Deterioration Paint: Majority of existing paint system is missing and patches of rust visible throughout the superstructure and substructure elements.
Existing facilities around structure (buildings, pumping plants, RR, etc.)
Right: Pajaro River channel Left: Pajaro River channel
Visible Utilities On: None visible Under: None visible Adjacent: Overhead electrical lines along left side of structure
Roadway Conditions / Traffic Lanes
No. of Lanes: N/A Shoulders: N/A Median: N/A Drainage: N/A Conditions: N/A Overlays: N/A Manholes: N/A
Potential R/W Conflicts None identified.
Structure Components
Description
Railroad Santa Cruz Branch Line
Water Crossings Pajaro River channel passes under Spans 1, 2 & 3
Critical areas to be surveyed (measure where possible, e.g. column heights)
None identified.
Overall Condition Rating: 6
Overall Channel Rating: 7
PRELIMINARY RECOMMENDATIONS
CONTINUED FREIGHT SERVICE: • Structurally acceptable for continued freight service • Clear grass and debris and maintain fire break under and along edges of structure SUPPLEMENTAL INVESTIGATION: • Conduct detailed structural assessment within 0 to 5 years to verify structure load rating and identify
any areas potentially requiring rehabilitation ATTACHMENTS: • Field Photos M:\2005\166\Field Review\Railroad Bridges\MP 01-06b.doc
Right Side: Looking U/S Open Deck: Looking U/S
Left Side: Looking D/S Right Side Through Girder
Pier 1: Looking U/S Pier 2: Looking U/S