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Nearby Bridges in NBI 2021: 2


RIVER ROAD over C&O CANAL (Route: 421)
Num:3100017P0000000x
Open: no restriction [A]
Built: 2015, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Precast Panels [2] with Wearing Surface:
Bridge Dimensions
Length: 13.4 m = 44.0 ft
Main Spans: 1 at 12.2 m = 40.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 8.3 m = 27.2 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Allegany County [001], Maryland [24]
Owned by National Park Service [66], DOT District: 0
0.1 miles from North Bran
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Very Good [8]
Loading
Design: HL93 [A]
Operating: 68.2 metric ton = 75.0 tons ()
Inventory: 40.8 metric ton = 44.9 tons ()
Appraisal
Structural: Equal to present desirable criteria [8]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: October 1999 [1099] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 100 (2017) and Trucks: 60%
Future ADT: 120 (In 2037 )
PITTSBURGH PG ROAD over CSXT / LOCKHOUSE RD (Route: 518)
Num:200000A-0085010x
Open: no restriction [A]
Built: 1957, Reconstructed: 1983
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
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: 65.5 m = 214.9 ft
Main Spans: 3 at 31.4 m = 103.0 ft
Approach Spans: 0
Skew: 9
Width, Roadway: 9.5 m = 31.2 ft (2 Lanes) and Out-To-Out: 10.4 m = 34.1 ft for a 10.7 m = 35.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Allegany County [001], Maryland [24]
Owned by County Highway Agency [02], DOT District: 6
0.23 MI NW OF MD 51
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: M 18 / H 20 [4]
Operating: 87.5 metric ton = 96.3 tons (Load Factor(LF) [1])
Inventory: 52.6 metric ton = 57.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: December 1999 [1299] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 2085 (2019) and Trucks: 5%
Future ADT: 2545 (In 2039 )

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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