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Nearby Bridges in NBI 2021: 1


Lake Side Drive over Guernsey Dam Spillway (Route: 317)
Num: WYA-NPP-001x
Posted for load [P]
Built: 1927, Reconstructed: N/A [0000]
Historic: Bridge is on the NRHP. [1]

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Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Tee beam [04]
Approach Span(s): Concrete continuous [2] Slab [01]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 24 m = 78.7 ft
Main Spans: 1 at 15.8 m = 51.8 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 4.8 m = 15.7 ft (1 Lanes) and Out-To-Out: 6.2 m = 20.3 ft for a 7 m = 23.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Platte County [031], Wyoming [56]
Owned by Bureau of Reclamation [69], DOT District: 0
1.8 miles NW of Guernsey
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design:
Operating: 9 metric ton = 9.9 tons (Load Factor(LF) [1])
Inventory: 5.4 metric ton = 5.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Equal to present desirable criteria [8]
Road Alignment: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: September 1999 [999] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 2.9 km = 1.8 mi
Traffic
ADT: 100 (2011) and Trucks: 0%
Future ADT: 110 (In 2032 )

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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