HWY 287 BYPASS over MISSOURI RIVER 019

Map

Coordinates:
+46.17185, -111.44368
46°10'19" N, 111°26'37" W

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

Name:	HWY 287 BYPASS over MISSOURI RIVER 019
Structure number:	L04415000+01001
Location:	TOSTON
Purpose:	Carries highway over waterway
Route classification:	Local (Rural) `[09]`
Length of largest span:	174.9 ft. `[53.3 m]`
Total length:	531.9 ft. `[162.1 m]`
Roadway width between curbs:	15.4 ft. `[4.7 m]`
Deck width edge-to-edge:	16.1 ft. `[4.9 m]`
Vertical clearance above deck:	11.2 ft. `[3.4 m]`
Owner:	County Highway Agency `[02]`
Year built:	1920
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Number of main spans:	3
Main spans material:	Steel `[3]`
Main spans design:	Truss - Thru `[10]`
Deck type:	Wood or Timber `[8]`
Wearing surface:	Bituminous `[6]`

Good/Fair/Poor Condition:	Poor
Status:	Posted for load `[P]`
Average daily traffic:	100 `[as of 2003]`
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Poor `[4 out of 9]`
Substructure condition:	Poor `[4 out of 9]`
Structural appraisal:	Basically intolerable requiring high priority of replacement `[2]`
Deck geometry appraisal:	Basically intolerable requiring high priority of replacement `[2]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Equal to present minimum criteria `[6]`
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. `[8]`
Scour condition:	Bridge foundations determined to be stable for assessed or calculated scour condition. `[5]`
Sufficiency rating:	19.9
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. `[31]`
Estimated cost of work:	$1,074,000

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
June 2018	Poor	Satisfactory	Poor	Poor	100	19.9
August 2016	Poor	Satisfactory	Poor	Poor	100	19.9
August 2014	Poor	Satisfactory	Poor	Poor	100	19.8
September 2012	Poor	Satisfactory	Fair	Poor	100	27.3
October 2010	Poor	Satisfactory	Fair	Poor	100	27.3
October 2009	Poor	Satisfactory	Fair	Poor	100	27.3
October 2007	Poor	Satisfactory	Satisfactory	Poor	100	27.3
September 2005	Poor	Satisfactory	Satisfactory	Poor	100	27.3
July 2003	Poor	Satisfactory	Satisfactory	Poor	100	27.3
April 2001	Poor	Satisfactory	Satisfactory	Poor	100	27.3
October 1994	Poor	Satisfactory	Satisfactory	Poor	100	27.3
July 1993	Poor	Satisfactory	Satisfactory	Poor	31	32.7
November 1990	Poor	Fair	Poor	Poor	31	31.7

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

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Steel Stringer	linear ft.	3,724	0	3,640	47	37
Steel Protective Coating	sq. ft.	44,688	0	26,813	13,406	4,469
Steel Truss	linear ft.	1,063	0	0	1,054	9
Steel Protective Coating	sq. ft.	12,750	0	1,275	2,550	8,925
Steel Floor Beam	linear ft.	469	0	469	0	0
Steel Protective Coating	sq. ft.	2,286	0	1,371	686	229
Steel Gusset Plate	each	96	0	96	0	0
Steel Protective Coating	sq. ft.	1,080	0	108	216	756
Substructure
Reinforced Concrete Column	each	4	0	0	4	0
Reinforced Concrete Abutment	linear ft.	89	64	19	6	0
Reinforced Concrete Pier Cap	linear ft.	49	0	24	25	0
Deck
Timber Deck	sq. ft.	8,568	2,570	4,284	1,714	0
Wearing Surfaces	sq. ft.	8,568	7,596	0	972	0
Bearings
Movable Bearing	each	6	0	3	3	0
Steel Protective Coating	sq. ft.	6	0	0	0	6
Fixed Bearing	each	6	0	6	0	0
Steel Protective Coating	sq. ft.	6	0	0	0	6
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	1,063	0	0	1,063	0
Steel Protective Coating	sq. ft.	5,160	0	0	0	5,160