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

Span 1: Looking U/S Pier 2: Looking U/S

Pier 2: Looking U/S Superstructure Bracing

Pier 6: Looking D/S Pier 6: Looking D/S