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Nearby Bridges in NBI 2021: 2


SR 3 over TN RIVER & CSX RR (Route: 31)
Num:7320x
Open: no restriction [A]
Built: 1961, Reconstructed: 1997
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Truss - Thru [10]
Approach Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 762.6 m = 2502.1 ft
Main Spans: 3 at 109.7 m = 359.9 ft
Approach Spans: 20
Skew: 0
Width, Roadway: 9.2 m = 30.2 ft (2 Lanes) and Out-To-Out: 10.1 m = 33.1 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 4.88 m = 16.0 ft and Navigational Clearance: 17.4 m = 57.1 ft
Location
Decatur [20104]: Morgan County [103], Alabama [01]
Owned by State Highway Agency [01], DOT District: 2
0.1 M N JCT SR 3 & SR 20
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 40.6 metric ton = 44.7 tons (Load Factor(LF) [1])
Inventory: 24.3 metric ton = 26.7 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: September 1999 [999] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 20045 (2019) and Trucks: 7%
Future ADT: 2000 (In 2033 )
SR 3 over TN River & CSX RR (Route: 31)
Num:16368x
Open: no restriction [A]
Built: 1996, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.3 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Prestressed concrete [5] Tee beam [04]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 791 m = 2595.3 ft
Main Spans: 1 at 109.7 m = 359.9 ft
Approach Spans: 13
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (3 Lanes) and Out-To-Out: 13.1 m = 43.0 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 17.4 m = 57.1 ft
Location
Decatur [20104]: Morgan County [103], Alabama [01]
Owned by State Highway Agency [01], DOT District: 2
0.1 M N JCT SR 3 & SR 20
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 50.7 metric ton = 55.8 tons (Load Factor(LF) [1])
Inventory: 33 metric ton = 36.3 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 2020 [0720] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 20045 (2020) and Trucks: 7%
Future ADT: 25749 (In 2033 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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