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STEVENS CANYON ROA over MUDDY FORK

Lewis County, Washington

Map

Coordinates:
+46.76564, -121.63581
46°45'56" N, 121°38'09" W

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Facts

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

Name:	STEVENS CANYON ROA over MUDDY FORK
Structure number:	9450011P0000000
Location:	10.3 miles west of jct. U
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Minor Collector (Rural) `[08]`
Length of largest span:	79.1 ft. `[24.1 m]`
Total length:	79.1 ft. `[24.1 m]`
Roadway width between curbs:	27.6 ft. `[8.4 m]`
Deck width edge-to-edge:	40.0 ft. `[12.2 m]`
Owner:	National Park Service `[66]`
Year built:	1952
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	M 13.5 / H 15 `[2]`
Main span material:	Concrete `[1]`
Main span design:	Arch - Deck `[11]`
Deck type:	Not applicable `[N]`

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	1,500 `[as of 2008]`
Truck traffic:	15% of total traffic
Superstructure condition:	Good `[7 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:	Superior to present desirable criteria `[9]`
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:	42.8
Estimated cost of work:	$63,000

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
August 2018	Fair	-	Good	Satisfactory	1500	42.8
August 2016	Fair	-	Good	Satisfactory	1500	42.8
August 2014	Fair	-	Good	Satisfactory	1500	43.8
August 2012	Fair	-	Good	Satisfactory	1500	43.8
August 2010	Fair	-	Good	Satisfactory	1500	43.8
July 2008	Fair	-	Good	Satisfactory	1500	44.8
August 2006	Good	-	Good	Good	1500	44.8
August 2002	Good	-	Good	Good	1500	47.1
September 2000	Good	-	Good	Very Good	1500	46.9
October 1992	Good	Very Good	Good	Very Good	1500	59.3

© Copyright 2012-20, James Baughn
Disclaimer: All data is taken from the National Bridge Inventory and has not been verified.
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