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Nearby Bridges in NBI 2021: 3


I 90 over INT ORANGE STREET (Route: 90)
Num:I00090104+07801x
Open: no restriction [A]
Built: 1966, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 54.6 m = 179.1 ft
Main Spans: 3 at 21.9 m = 71.9 ft
Approach Spans: 0
Skew: 25
Width, Roadway: 11.2 m = 36.7 ft (2 Lanes) and Out-To-Out: 11.7 m = 38.4 ft for a 11.6 m = 38.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Missoula [50200]: Missoula County [063], Montana [30]
Owned by State Highway Agency [01], DOT District: 1
MISSOULA
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 33.6 metric ton = 37.0 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 15.4 metric ton = 16.9 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
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: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: February 2021 [0221] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 10527 (2019) and Trucks: 9%
Future ADT: 22211 (In 2039 )
I 90 over INT ORANGE STREET (Route: 90)
Num:I00090104+07802x
Open: no restriction [A]
Built: 1966, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 54.6 m = 179.1 ft
Main Spans: 3 at 21.9 m = 71.9 ft
Approach Spans: 0
Skew: 25
Width, Roadway: 11.2 m = 36.7 ft (2 Lanes) and Out-To-Out: 11.7 m = 38.4 ft for a 11.6 m = 38.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Missoula [50200]: Missoula County [063], Montana [30]
Owned by State Highway Agency [01], DOT District: 1
MISSOULA
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 35.4 metric ton = 38.9 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 17.2 metric ton = 18.9 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
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: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: February 2021 [0221] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 10527 (2019) and Trucks: 9%
Future ADT: 22211 (In 2039 )
S ORANGE ST over CLARK FORK RIVER (Route: 130)
Num:U08107001+05401x
Open: no restriction [A]
Built: 2003, 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): Prestressed concrete continuous [6] 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: 151.4 m = 496.7 ft
Main Spans: 4 at 50 m = 164.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 18 m = 59.1 ft (4 Lanes) and Out-To-Out: 23.8 m = 78.1 ft for a 18 m = 59.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Missoula [50200]: Missoula County [063], Montana [30]
Owned by State Highway Agency [01], DOT District: 1
MISSOULA-S ORANGE ST
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 29 metric ton = 31.9 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 20 metric ton = 22.0 tons (Load and Resistance Factor(LRFR) [3])
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 the assessed or calculated scour condition. [8]
Inspections
Date: July 2020 [0720] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 24415 (2019) and Trucks: 0%
Future ADT: 25636 (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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