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Nearby Bridges in NBI 2021: 2


TWENTY EIGHTH ST over N-S RR /PAT/SASSAFRAS ST (Route: 0)
Num:2461x
Posted for load [P]
Built: 1931, Reconstructed: 1974
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): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 96 m = 315.0 ft
Main Spans: 1 at 64 m = 210.0 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 6.7 m = 22.0 ft (2 Lanes) and Out-To-Out: 7.5 m = 24.6 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 4.14 m = 13.6 ft and Navigational Clearance: 0 = N/A
Location
Pittsburgh [61000]: Allegheny County [003], Pennsylvania [42]
Owned by City or Municipal Highway Agency [04], DOT District: 11
301115 28 ST BR PGH & PAT
Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 32.7 metric ton = 36.0 tons (Load Factor(LF) [1])
Inventory: 19.1 metric ton = 21.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: October 2018 [1018] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 6500 (2004) and Trucks: 5%
Future ADT: 7150 (In 2019 )
HERRS ISLAND RD over ALLEGHENY RIVER (Route: 0)
Num:2417x
Open: no restriction [A]
Built: 1986, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 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: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 86 m = 282.2 ft
Main Spans: 1 at 53.9 m = 176.8 ft
Approach Spans: 2
Skew: 5
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 11.6 m = 38.1 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Pittsburgh [61000]: Allegheny County [003], Pennsylvania [42]
Owned by City or Municipal Highway Agency [04], DOT District: 11
301041 HERR'S ISLAND BRDG
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 53.5 metric ton = 58.9 tons (Load Factor(LF) [1])
Inventory: 31.8 metric ton = 35.0 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: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: November 2018 [1118] and Frequency: 24
Future Work
Work Needed: Bridge deck rehabilitation with only incidental widening. [36]
Bridge Detour: 15.9 km = 9.9 mi
Traffic
ADT: 800 (2004) and Trucks: 3%
Future ADT: 880 (In 2030 )

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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