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Nearby Bridges in NBI 2021: 2


HWY 241 over ISTHMUS SLOUGH (Route: 241)
Num:01132F241 00051x
Open: no restriction [A]
Built: 1931, Reconstructed: 1960
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Steel [3] Truss - Deck [09]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Epoxy Overlay [5]
Bridge Dimensions
Length: 515.4 m = 1691.0 ft
Main Spans: 1 at 42.7 m = 140.1 ft
Approach Spans: 32
Skew: 0
Width, Roadway: 8.2 m = 26.9 ft (2 Lanes) and Out-To-Out: 11 m = 36.1 ft for a 8.2 m = 26.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 8.5 m = 27.9 ft
Location
Unknown [00000]: Coos County [011], Oregon [41]
Owned by State Highway Agency [01], DOT District: 7
00.2 MI SW EASTSIDE SCL
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: M 13.5 / H 15 [2]
Operating: 22.4 metric ton = 24.6 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 17.2 metric ton = 18.9 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
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: 1.4 km = 0.9 mi
Traffic
ADT: 11900 (2018) and Trucks: 17%
Future ADT: 17000 (In 2038 )
HWY 241 over CBRL (Route: 241)
Num:02390 241 00014x
Open: no restriction [A]
Built: 1939, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 45.7 m = 149.9 ft
Main Spans: 3 at 15.2 m = 49.9 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 7.9 m = 25.9 ft (2 Lanes) and Out-To-Out: 11.7 m = 38.4 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]: Coos County [011], Oregon [41]
Owned by State Highway Agency [01], DOT District: 7
006 MI SW EASTSIDE
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 42.6 metric ton = 46.9 tons (Load Factor(LF) [1])
Inventory: 25.4 metric ton = 27.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: February 2020 [0220] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 1.4 km = 0.9 mi
Traffic
ADT: 11900 (2018) and Trucks: 17%
Future ADT: 17000 (In 2038 )

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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