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Nearby Bridges in NBI 2021: 1


CHAMBERS ROCK RD over WHITE CLAY CREEK (Route: 329)
Num: 1216 329x
Posted for load [P]
Built: 1928, Reconstructed: 1995
Historic: Bridge is eligible for the NRHP. [2]

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: Wood or Timber [8] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 21 m = 68.9 ft
Main Spans: 1 at 20.4 m = 66.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 5 m = 16.4 ft (1 Lanes) and Out-To-Out: 5 m = 16.4 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
Covered Bridge Farms [18040]: New Castle County [003], Delaware [10]
Owned by State Highway Agency [01], DOT District: 1
WHITE CLAY CREEK PRESERVE
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 24.3 metric ton = 26.7 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 18.8 metric ton = 20.7 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
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: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Better than present minimum criteria [7] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: April 1999 [499] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 3976 (2018) and Trucks: 13%
Future ADT: 5036 (In 2043 )

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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