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Nearby Bridges in NBI 2021: 2


MD 845A over LITTLE ANTIETAM CREEK (Route: 845)
Num:100000210004010x
Open: no restriction [A]
Built: 1927, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Arch - Deck [11]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 15.2 m = 49.9 ft
Main Spans: 1 at 15.2 m = 49.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 11.1 m = 36.4 ft for a 10.4 m = 34.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [05200]: Washington County [043], Maryland [24]
Owned by State Highway Agency [01], DOT District: 6
0.56 MILE NORTH OF MD 34
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 76.2 metric ton = 83.8 tons (Load Factor(LF) [1])
Inventory: 45.8 metric ton = 50.4 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: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: September 2020 [0920] 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: 490 (2009) and Trucks: 8%
Future ADT: 922 (In 2026 )
MD 34 over LITTLE ANTIETAM CREEK (Route: 34)
Num:100000210050010x
Open: no restriction [A]
Built: 1958, Reconstructed: 1992
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): Steel continuous [4] 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: 40.5 m = 132.9 ft
Main Spans: 3 at 13.1 m = 43.0 ft
Approach Spans: 0
Skew: 60
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 11.9 m = 39.0 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Keedysville [43100]: Washington County [043], Maryland [24]
Owned by State Highway Agency [01], DOT District: 6
0.19 MILE EAST OF MD 845A
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Fair [5]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 85.3 metric ton = 93.8 tons (Load Factor(LF) [1])
Inventory: 51.2 metric ton = 56.3 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: September 2020 [0920] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 4951 (2009) and Trucks: 6%
Future ADT: 5570 (In 2026 )

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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