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Nearby Bridges in NBI 2021: 3


ROCKLAND RD over BRANDYWINE CREEK (Route: 232)
Num: 1002 232x
Open: no restriction [A]
Built: 1933, Reconstructed: 1993
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] Stringer/Multi-beam or girder [02]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 50.1 m = 164.4 ft
Main Spans: 1 at 34.3 m = 112.5 ft
Approach Spans: 1
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 11.5 m = 37.7 ft for a 7.4 m = 24.3 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Rockland [61590]: New Castle County [003], Delaware [10]
Owned by State Highway Agency [01], DOT District: 1
ROCKLAND
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 27.5 metric ton = 30.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 21.1 metric ton = 23.2 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: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 2020 [0420] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 1 km = 0.6 mi
Traffic
ADT: 3409 (2018) and Trucks: 13%
Future ADT: 4277 (In 2042 )
ROCKLAND RD over WILSON RUN (Route: 235)
Num: 1068 235x
Open: no restriction [A]
Built: 1925, Reconstructed: 2005
Historic: Bridge is on the NRHP. [1]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box Beam or girders - Single or Spread [06]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 7.5 m = 24.6 ft
Main Spans: 1 at 6.5 m = 21.3 ft
Approach Spans: 0
Skew: 12
Width, Roadway: 6.4 m = 21.0 ft (2 Lanes) and Out-To-Out: 10.5 m = 34.5 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Rockland [61590]: New Castle County [003], Delaware [10]
Owned by State Highway Agency [01], DOT District: 1
ROCKLAND
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Satisfactory [6]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 90.7 metric ton = 99.8 tons (Load Factor(LF) [1])
Inventory: 54.3 metric ton = 59.7 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Equal to present minimum criteria [6] 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 rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.1 km = 0.1 mi
Traffic
ADT: 5447 (2017) and Trucks: 9%
Future ADT: 8164 (In 2037 )
ADAMS DAM RD over WILSON RUN (Route: 232)
Num: 1069 232x
Open: no restriction [A]
Built: 1933, Reconstructed: 1998
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box Beam or girders - Single or Spread [06]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 11 m = 36.1 ft
Main Spans: 1 at 9.6 m = 31.5 ft
Approach Spans: 0
Skew: 23
Width, Roadway: 7.8 m = 25.6 ft (2 Lanes) and Out-To-Out: 8.9 m = 29.2 ft for a 6.8 m = 22.3 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Rockland [61590]: New Castle County [003], Delaware [10]
Owned by State Highway Agency [01], DOT District: 1
ROCKLAND
Condition
Deck: Very Good [8]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: HL93 [A]
Operating: 52.8 metric ton = 58.1 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 43.1 metric ton = 47.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Equal to present minimum criteria [6]
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 assessed or calculated scour condition. [5]
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: 0.3 km = 0.2 mi
Traffic
ADT: 3394 (2017) and Trucks: 10%
Future ADT: 3790 (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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