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Nearby Bridges in NBI 2021: 1


MCLEAN MILL ROAD over BIG DARBY CREEK (Route: 0)
Num:6533167x
Bridge closed to all traffic [K]
Built: 1912, Reconstructed: 1986
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Corrugated Steel [6] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 78.6 m = 257.9 ft
Main Spans: 2 at 38.1 m = 125.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 5.2 m = 17.1 ft (1 Lanes) and Out-To-Out: 5.3 m = 17.4 ft for a 4.6 m = 15.1 ft approaching roadway.
Vertical Clearance: 3.81 m = 12.5 ft and Navigational Clearance: 0 = N/A
Location
Jackson [37982]: Pickaway County [129], Ohio [39]
Owned by County Highway Agency [02], DOT District: 6
1.3MI EAST OF LONDON ROAD
Condition
Deck: Poor [4]
Superstructure: Serious [3]
Substructure: Critical [2]
Loading
Design:
Operating: 35.6 metric ton = 39.2 tons (Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading [7])
Inventory: 25.9 metric ton = 28.5 tons (Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading [7])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry:
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Inspections
Date: December 2020 [1220] and Frequency: 12
Future Work
Work Needed: Replacement of bridge or other structure because of relocation of road. [32]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 210 (1984) and Trucks: 0%
Future ADT: 291 (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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