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Nearby Bridges in NBI 2021: 1


SWAMP CREEK ROAD over UNAMI CREEK (Route: 0)
Num:27564x
Open: no restriction [A]
Built: 1892, Reconstructed: 2012
Historic: Bridge is on the NRHP. [1]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Masonry [8] Arch - Deck [11]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 27.1 m = 88.9 ft
Main Spans: 3 at 7.9 m = 25.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.9 m = 16.1 ft (1 Lanes) and Out-To-Out: 6.1 m = 20.0 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
Marlborough [47592]: Montgomery County [091], Pennsylvania [42]
Owned by State Highway Agency [01], DOT District: 6
1MI.N. PA 63 7E7/2917J7
Condition
Deck: Very Good [8]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: M 13.5 / H 15 [2]
Operating: 76.2 metric ton = 83.8 tons ()
Inventory: 45.4 metric ton = 49.9 tons ()
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Equal to present desirable criteria [8] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: March 2020 [0320] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 202 (2019) and Trucks: 4%
Future ADT: 181 (In 2032 )

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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