SH 55 over SNAKE RIVER(MARSING BR)

Map

Coordinates:
+43.54799, -116.80135
43°32'53" N, 116°48'05" W

Source: National Bridge Inventory. Information not verified; use at your own risk.

Name:	SH 55 over SNAKE RIVER(MARSING BR)
Structure number:	000000000014670
Location:	NEAR MARSING ECL
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Principal Arterial - Other (Rural) `[02]`
Length of largest span:	64.0 ft. `[19.5 m]`
Total length:	774.0 ft. `[235.9 m]`
Roadway width between curbs:	27.9 ft. `[8.5 m]`
Deck width edge-to-edge:	38.1 ft. `[11.6 m]`
Vertical clearance below bridge:	13.1 ft. `[4.0 m]`
Owner:	State Highway Agency `[01]`
Year built:	1955
Historic significance:	Bridge is eligible for the National Register of Historic Places `[2]`
Design load:	MS 13.5 / HS 15 `[3]`
Number of main spans:	12
Main spans material:	Steel continuous `[4]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`

Good/Fair/Poor Condition:	Poor
Status:	Open, no restriction `[A]`
Average daily traffic:	6,200 `[as of 2016]`
Truck traffic:	11% of total traffic
Deck condition:	Poor `[4 out of 9]`
Superstructure condition:	Satisfactory `[6 out of 9]`
Substructure condition:	Poor `[4 out of 9]`
Structural appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Deck geometry appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Channel protection:	Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. `[6]`
Pier/abutment protection:	Navigation protection not required `[1]`
Scour condition:	Bridge is scour critical; bridge foundations determined to be unstable. `[3]`
Sufficiency rating:	30.8
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. `[31]`
Estimated cost of work:	$12,230,000

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
March 2018	Poor	Poor	Satisfactory	Poor	6200	30.8
March 2017	Poor	Poor	Satisfactory	Poor	6000	30.8
March 2016	Poor	Poor	Satisfactory	Poor	6000	30.8
March 2015	Poor	Fair	Satisfactory	Poor	6000	32.8
March 2014	Poor	Fair	Satisfactory	Poor	6000	32.8
March 2013	Poor	Satisfactory	Satisfactory	Serious	5800	11.0
March 2012	Poor	Satisfactory	Satisfactory	Serious	5800	11.0
March 2011	Poor	Satisfactory	Satisfactory	Serious	6300	11.0
March 2010	Poor	Satisfactory	Satisfactory	Serious	6300	11.0
March 2009	Poor	Good	Satisfactory	Serious	6300	11.0
March 2008	Poor	Good	Satisfactory	Serious	6300	11.0
March 2007	Fair	Good	Satisfactory	Fair	6200	44.0
February 2006	Fair	Good	Satisfactory	Fair	5600	44.0
February 2005	Fair	Good	Satisfactory	Fair	5600	44.0
February 2004	Fair	Satisfactory	Satisfactory	Fair	5600	44.0
February 2002	Fair	Satisfactory	Satisfactory	Fair	5600	44.0
February 2000	Fair	Satisfactory	Satisfactory	Fair	5400	44.0
February 1998	Fair	Good	Satisfactory	Fair	5400	44.0
September 1996	Fair	Good	Satisfactory	Fair	5200	44.0
September 1994	Fair	Good	Satisfactory	Fair	5200	44.0
September 1992	Fair	Good	Satisfactory	Fair	3410	47.1
September 1991	Fair	Good	Satisfactory	Fair	3410	47.1

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Steel Girder/Beam	linear ft.	3,871	3,596	195	80	0
Steel Protective Coating	sq. ft.	44,866	0	36,066	8,000	800
Deck
Reinforced Concrete Deck	sq. ft.	29,407	0	13,607	15,800	0
Substructure
Reinforced Concrete Column	each	121	0	0	121	0
Reinforced Concrete Abutment	linear ft.	75	60	15	0	0
Steel Pile	each	99	0	0	99	0
Reinforced Concrete Pier Cap	linear ft.	384	314	70	0	0
Joints
Strip Seal Joint	linear ft.	132	0	42	80	10
Pourable Joint	linear ft.	38	38	0	0	0
Compression Joint	linear ft.	19	10	9	0	0
Bearings
Movable Bearing	each	40	0	0	40	0
Steel Protective Coating	sq. ft.	80	0	0	0	80
Fixed Bearing	each	40	0	0	40	0
Steel Protective Coating	sq. ft.	80	0	0	80	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	1,549	449	1,000	100	0
Steel Protective Coating	sq. ft.	9,314	0	0	8,300	1,014