SR20 over Apalachicola River (Route: 20)
Num:470052x
Open: no restriction [A]
Built: 1998, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Prestressed concrete continuous [6] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 2548.7 m = 8362.3 ft
Main Spans: 3 at 85.3 m = 279.9 ft
Approach Spans: 70
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 15.2 m = 49.9 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 14 m = 45.9 ft

Location
Unknown [00000]: Calhoun County [013], Florida [12]
Owned by State Highway Agency [01], DOT District: 3
1.9mi. East of SR71

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 70.7 metric ton = 77.8 tons (Load Factor(LF) [1])
Inventory: 42.4 metric ton = 46.6 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Better than present minimum criteria [7]
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: October 1999 [1099] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 5281 (2019) and Trucks: 14%
Future ADT: 9163 (In 2041 )

SR20 over Apalachicola River (Route: 20)
Num:470029x
Open: no restriction [A]
Built: 1938, Reconstructed: 1998
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Truss - Thru [10]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 2559.4 m = 8397.4 ft
Main Spans: 5 at 85.3 m = 279.9 ft
Approach Spans: 198
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 8.1 m = 26.6 ft for a 10.4 m = 34.1 ft approaching roadway.
Vertical Clearance: 5.06 m = 16.6 ft and Navigational Clearance: 15.8 m = 51.8 ft

Location
Unknown [00000]: Calhoun County [013], Florida [12]
Owned by State Highway Agency [01], DOT District: 3
3.0mi East of SR71

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: HL93 [A]
Operating: 33.7 metric ton = 37.1 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 25.8 metric ton = 28.4 tons (Load and Resistance Factor(LRFR) [3])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: March 1999 [399] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 5281 (2019) and Trucks: 14%
Future ADT: 9163 (In 2041 )