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Nearby Bridges in NBI 2021: 2


NORTHSIDE RD over BIG CREEK;SE.CALDER BR (Route: 0)
Num:30840x
Open: no restriction [A]
Built: 1960, 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): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Wood or timber [7] Stringer/Multi-beam or girder [02]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 31.1 m = 102.0 ft
Main Spans: 1 at 18 m = 59.1 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 4.3 m = 14.1 ft (1 Lanes) and Out-To-Out: 4.7 m = 15.4 ft for a 5.5 m = 18.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Shoshone County [079], Idaho [16]
Owned by County Highway Agency [02], DOT District: 1
0.1 S. 3.7 E. CALDER
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 44.5 metric ton = 49.0 tons (Load Factor(LF) [1])
Inventory: 32.7 metric ton = 36.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Better than present minimum criteria [7] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 1.6 km = 1.0 mi
Traffic
ADT: 50 (2019) and Trucks: 10%
Future ADT: 75 (In 2039 )
POTLATCH ROAD over BIG CREEK TRESTLE (Route: 0)
Num:30993x
Open: no restriction [A]
Built: 1912, Reconstructed: 1991
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.3 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 22.6 m = 74.2 ft
Main Spans: 1 at 21.3 m = 69.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.1 m = 13.5 ft (1 Lanes) and Out-To-Out: 4.4 m = 14.4 ft for a 4.9 m = 16.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Shoshone County [079], Idaho [16]
Owned by County Highway Agency [02], DOT District: 1
4.1 E. CALDER
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 26.1 metric ton = 28.7 tons (Allowable Stress(AS) [2])
Inventory: 19.8 metric ton = 21.8 tons (Allowable Stress(AS) [2])
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 minimum criteria [6]
Waterway: Better than present minimum criteria [7] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: August 2020 [0820] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 1.6 km = 1.0 mi
Traffic
ADT: 100 (2019) and Trucks: 5%
Future ADT: 150 (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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