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Nearby Bridges in NBI 2021: 2


I-77 SBL over RTE 717 (Route: 77)
Num:2986x
Open: no restriction [A]
Built: 1972, Reconstructed: 1987
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 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: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 44.2 m = 145.0 ft
Main Spans: 3 at 18.3 m = 60.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 15.5 m = 50.9 ft (3 Lanes) and Out-To-Out: 16.6 m = 54.5 ft for a 13.4 m = 44.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Bland County [021], Virginia [51]
Owned by State Highway Agency [01], DOT District: 1
.94 FR WCL-.36 TO BWMT
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 70.8 metric ton = 77.9 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 43.5 metric ton = 47.9 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: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 2020 [0920] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 14504 (2018) and Trucks: 28%
Future ADT: 21988 (In 2037 )
I-77 NBL over RTE 717 (Route: 77)
Num:2984x
Open: no restriction [A]
Built: 1972, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 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: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 44.2 m = 145.0 ft
Main Spans: 3 at 18.3 m = 60.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 15.5 m = 50.9 ft (3 Lanes) and Out-To-Out: 16.6 m = 54.5 ft for a 13.4 m = 44.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Bland County [021], Virginia [51]
Owned by State Highway Agency [01], DOT District: 1
.94 FR WCL-.36 TO BWMT
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 60.8 metric ton = 66.9 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 42.6 metric ton = 46.9 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: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 2020 [0920] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 15155 (2018) and Trucks: 28%
Future ADT: 20822 (In 2037 )

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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