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Nearby Bridges in NBI 2021: 2


SIWELL RD over PEARL RIVER (Route: 425)
Num:SA2500000000056x
Open: no restriction [A]
Built: 1989, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Deck: Concrete Precast Panels [2] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 481.6 m = 1580.1 ft
Main Spans: 3 at 42.7 m = 140.1 ft
Approach Spans: 28
Skew: 0
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 10.1 m = 33.1 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
District 5 [93177]: Hinds County [049], Mississippi [28]
Owned by County Highway Agency [02], DOT District: 5
SEC 19 T 4N R 1E B
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 56.6 metric ton = 62.3 tons (Load Factor(LF) [1])
Inventory: 34 metric ton = 37.4 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: Better than present minimum criteria [7] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: November 1999 [1199] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 2.9 km = 1.8 mi
Traffic
ADT: 7300 (2015) and Trucks: 8%
Future ADT: 10950 (In 2035 )
OLD BYRAM RD over TRAHOM CREEK (Route: 5471)
Num:SA2500000000055x
Bridge closed to all traffic [K]
Built: 1959, 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): Concrete [1] Channel beam [22]
Approach Span(s): Other [00]
Deck: Concrete Precast Panels [2] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 41.1 m = 134.8 ft
Main Spans: 3 at 13.7 m = 44.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.9 m = 22.6 ft (2 Lanes) and Out-To-Out: 7.5 m = 24.6 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Byram [10140]: Hinds County [049], Mississippi [28]
Owned by City or Municipal Highway Agency [04], DOT District: 5
SEC 18 T 4N R 1E
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Imminent Failure [1]
Loading
Design: M 13.5 / H 15 [2]
Operating: 0 metric ton = 0.0 tons (Allowable Stress(AS) [2])
Inventory: 0 metric ton = 0.0 tons (Allowable Stress(AS) [2])
Appraisal
Structural:
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: November 1999 [1199] and Frequency: 12
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 400 (2017) and Trucks: 8%
Future ADT: 600 (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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