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S 7 over DRAINAGE

Carter County, Montana

Map

Coordinates:
+45.90990, -104.53547
45°54'36" N, 104°32'08" W

Facts

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

Name:	S 7 over DRAINAGE
Structure number:	P00027001+02901
Location:	1M NE EKALAKA
Purpose:	Carries highway over waterway
Route classification:	Minor Arterial (Rural) `[06]`
Length of largest span:	19.0 ft. `[5.8 m]`
Total length:	39.4 ft. `[12.0 m]`
Roadway width between curbs:	24.3 ft. `[7.4 m]`
Deck width edge-to-edge:	25.9 ft. `[7.9 m]`
Owner:	State Highway Agency `[01]`
Year built:	1940
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	M 13.5 / H 15 `[2]`
Number of main spans:	2
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: October 2018

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	522 `[as of 2017]`
Truck traffic:	7% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Fair `[5 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Structural appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
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:	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:	70.8

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
October 2018	Fair	Satisfactory	Fair	Satisfactory	522	70.8
October 2016	Fair	Satisfactory	Fair	Satisfactory	480	70.9
October 2014	Fair	Satisfactory	Fair	Satisfactory	440	71.0
October 2012	Fair	Good	Fair	Satisfactory	440	71.0
October 2010	Fair	Good	Fair	Satisfactory	440	71.0
September 2008	Fair	Good	Fair	Good	400	73.2
January 2007	Fair	Good	Satisfactory	Satisfactory	320	84.5
February 2005	Fair	Good	Satisfactory	Satisfactory	320	80.9
February 2003	Fair	Good	Satisfactory	Satisfactory	310	81.0
January 2001	Fair	Very Good	Satisfactory	Satisfactory	300	81.0
January 1999	Fair	Very Good	Satisfactory	Satisfactory	300	81.0
December 1996	Fair	Very Good	Satisfactory	Good	320	78.9
January 1995	Good	Very Good	Good	Very Good	256	75.9
November 1992	Good	Very Good	Good	Very Good	265	69.9
February 1991	Good	Very Good	Good	Very Good	285	69.9

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.	495	411	64	20	0
Substructure
Timber Abutment	linear ft.	85	46	39	0	0
Timber Pile	each	15	5	8	2	0
Timber Pier Cap	linear ft.	98	68	30	0	0
Deck
Timber Deck	sq. ft.	1,023	972	51	0	0
Wearing Surfaces	sq. ft.	1,023	962	61	0	0
Bridge Rail
Timber Bridge Rail	linear ft.	79	61	14	4	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/1318121