MAIN ST over SILVER CREEK (Route: 0)
Num:47C100A57700000x
Open: no restriction [A]
Built: 1974, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 24.7 m = 81.0 ft
Main Spans: 1 at 24.4 m = 80.1 ft
Approach Spans: 0
Skew: 6
Width, Roadway: 10.9 m = 35.8 ft (3 Lanes) and Out-To-Out: 14.4 m = 47.2 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Silverton [67650]: Marion County [047], Oregon [41]
Owned by City or Municipal Highway Agency [04], DOT District: 3
WEST OF WATER / MAIN INT.

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 88.9 metric ton = 97.8 tons (Load Factor(LF) [1])
Inventory: 64.4 metric ton = 70.8 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: August 2020 [0820] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 12536 (2020) and Trucks: 8%
Future ADT: 13286 (In 2025 )

C STREET over SILVER CREEK (Route: 0)
Num:09765 034x
Open: no restriction [A]
Built: 1969, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Precast Panels [2] with Wearing Surface: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Bridge Dimensions
Length: 23.8 m = 78.1 ft
Main Spans: 1 at 23.5 m = 77.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 14.6 m = 47.9 ft (2 Lanes) and Out-To-Out: 17 m = 55.8 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Silverton [67650]: Marion County [047], Oregon [41]
Owned by County Highway Agency [02], DOT District: 3
IN SILVERTON

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 72.6 metric ton = 79.9 tons (Allowable Stress(AS) [2])
Inventory: 43.5 metric ton = 47.9 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: August 2020 [0820] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 4272 (2020) and Trucks: 11%
Future ADT: 4763 (In 2025 )