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Nearby Bridges in NBI 2021: 1


US 93 over SNAKE RIVER; PERRINE BR. (Route: 93)
Num:17580x
Open: no restriction [A]
Built: 1976, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Arch - Deck [11]
Approach Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Epoxy Overlay [5]
Bridge Dimensions
Length: 457.2 m = 1500.1 ft
Main Spans: 1 at 302.7 m = 993.2 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 19.1 m = 62.7 ft (4 Lanes) and Out-To-Out: 23.9 m = 78.4 ft for a 24.4 m = 80.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Twin Falls County [083], Idaho [16]
Owned by State Highway Agency [01], DOT District: 4
0.6 N. TWIN FALLS
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 47.2 metric ton = 51.9 tons (Load Factor(LF) [1])
Inventory: 28.1 metric ton = 30.9 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 desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations (including piles) on dry land well above flood water elevations. [9]
Inspections
Date: September 2020 [0920] 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: 2.7 km = 1.7 mi
Traffic
ADT: 32500 (2019) and Trucks: 8%
Future ADT: 48750 (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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