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S 285 over TOSTON CANAL

Broadwater County, Montana

Map

Coordinates:
+46.17371, -111.50521
46°10'25" N, 111°30'19" W

Facts

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

Name:	S 285 over TOSTON CANAL
Structure number:	S00285002+09001
Location:	2M W TOSTON
Purpose:	Carries highway over waterway
Route classification:	Major Collector (Rural) `[07]`
Length of largest span:	13.1 ft. `[4.0 m]`
Total length:	29.9 ft. `[9.1 m]`
Roadway width between curbs:	24.3 ft. `[7.4 m]`
Deck width edge-to-edge:	26.2 ft. `[8.0 m]`
Owner:	State Highway Agency `[01]`
Year built:	1948
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Number of main spans:	3
Main spans material:	Wood or timber `[7]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Wood or Timber `[8]`
Wearing surface:	Bituminous `[6]`

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	290 `[as of 2017]`
Truck traffic:	1% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Satisfactory `[6 out of 9]`
Substructure condition:	Fair `[5 out of 9]`
Structural appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Deck geometry appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
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 the assessed or calculated scour condition. `[8]`
Sufficiency rating:	70.0

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
August 2018	Fair	Satisfactory	Satisfactory	Fair	290	70.0
August 2016	Fair	Satisfactory	Satisfactory	Fair	250	74.7
August 2014	Fair	Satisfactory	Good	Satisfactory	390	81.9
August 2012	Fair	Satisfactory	Good	Satisfactory	390	81.9
August 2010	Fair	Good	Good	Satisfactory	390	82.9
August 2008	Fair	Good	Good	Satisfactory	400	82.8
August 2006	Fair	Very Good	Good	Satisfactory	240	87.8
July 2004	Fair	Very Good	Good	Satisfactory	320	83.0
July 2002	Fair	Very Good	Good	Satisfactory	330	82.0
March 2000	Fair	Very Good	Good	Satisfactory	260	82.2
March 1998	Fair	Very Good	Good	Satisfactory	560	80.4
March 1996	Fair	Very Good	Good	Satisfactory	260	80.2
April 1994	Fair	Good	Good	Satisfactory	320	79.5
April 1992	Fair	Good	Good	Satisfactory	280	86.0
February 1990	Fair	Satisfactory	Satisfactory	Satisfactory	250	91.1

Element Data

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

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Timber Girder/Beam	linear ft.	479	417	62	0	0
Substructure
Reinforced Concrete Abutment	linear ft.	72	31	28	13	0
Timber Pile	each	4	0	3	1	0
Timber Pier Cap	linear ft.	52	0	49	3	0
Deck
Timber Deck	sq. ft.	786	762	12	12	0
Wearing Surfaces	sq. ft.	786	707	0	79	0
Bridge Rail
Timber Bridge Rail	linear ft.	59	0	51	8	0

© Copyright 2012-20, James Baughn
Disclaimer: All data is taken from the National Bridge Inventory and has not been verified.
This page's URL is http://bridgereports.com/1318761