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Nearby Bridges in NBI 2021: 2


N12 over MINNECHADUZA CREEK (Route: 12)
Num:S012 00398x
Open: no restriction [A]
Built: 1958, Reconstructed: 1985
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Truss - Deck [09]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Low slump Concrete [4]
Bridge Dimensions
Length: 53.3 m = 174.9 ft
Main Spans: 1 at 29.3 m = 96.1 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 9.5 m = 31.2 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]: Cherry County [031], Nebraska [31]
Owned by State Highway Agency [01], DOT District: 8
4E VALENTINE
Condition
Deck: Satisfactory [6]
Superstructure: Poor [4]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 38 metric ton = 41.8 tons (Load Factor(LF) [1])
Inventory: 23 metric ton = 25.3 tons (Load Factor(LF) [1])
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: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge with deck rehabilitation or replacement. [34]
Bridge Detour: 14 km = 8.7 mi
Traffic
ADT: 1070 (2018) and Trucks: 11%
Future ADT: 1445 (In 2038 )
COLL 7329 over NIOBRARA RIVER (Route: 7329)
Num:C001611405Px
Open: no restriction [A]
Built: 1970, Reconstructed: N/A [0000]
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: 56.1 m = 184.1 ft
Main Spans: 2 at 27.4 m = 89.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 10.1 m = 33.1 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Cherry County [031], Nebraska [31]
Owned by County Highway Agency [02], DOT District: 8
1.5N 3.5E OF VALENTINE
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Satisfactory [6]
Loading
Design: M 13.5 / H 15 [2]
Operating: 49 metric ton = 53.9 tons (Load Factor(LF) [1])
Inventory: 29 metric ton = 31.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 1999 [699] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 155 (1998) and Trucks: 0%
Future ADT: 263 (In 2033 )

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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