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COLUMBIA BLVD over MILTON CREEK

Columbia County, Oregon

Map

Coordinates:
+45.85868, -122.82397
45°51'31" N, 122°49'26" W

Facts

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

Name:	COLUMBIA BLVD over MILTON CREEK
Structure number:	13757A111101082
Location:	002 MI W JCT C1111/HWY30
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Minor Arterial (Urban) `[16]`
Length of largest span:	51.8 ft. `[15.8 m]`
Total length:	126.0 ft. `[38.4 m]`
Roadway width between curbs:	29.9 ft. `[9.1 m]`
Deck width edge-to-edge:	41.7 ft. `[12.7 m]`
Skew angle:	40°
Owner:	City or Municipal Highway Agency `[04]`
Year built:	1958
Historic significance:	Historical significance is not determinable at this time `[4]`
Design load:	MS 18 / HS 20 `[5]`
Number of main spans:	3
Main spans material:	Concrete continuous `[2]`
Main spans design:	Tee beam `[04]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Bituminous `[6]`

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	4,966 `[as of 2010]`
Truck traffic:	10% 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:	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]`
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. `[8]`
Sufficiency rating:	53.4

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
May 2017	Fair	Satisfactory	Satisfactory	Fair	4966	53.4
May 2015	Fair	Good	Satisfactory	Fair	4966	53.9
May 2013	Fair	Good	Satisfactory	Fair	4966	53.9
May 2011	Fair	Good	Satisfactory	Fair	4966	53.9
May 2009	Good	Good	Good	Good	4966	64.0
November 2008	Good	Good	Good	Good	4966	64.0
September 2006	Good	Good	Good	Good	4774	64.1
September 2004	Good	Good	Good	Good	4774	63.7
October 2002	Good	Good	Very Good	Good	4635	63.8
October 2000	Good	Good	Very Good	Good	4500	63.8
September 1998	Good	Good	Very Good	Good	4500	63.8
May 1996	Good	Good	Very Good	Good	4500	79.5
April 1994	Good	Good	Very Good	Good	4500	79.6
May 1992	Good	Good	Very Good	Good	4500	79.6
January 1990	Good	Good	Very Good	Good	4300	79.6

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
Reinforced Concrete Girder/Beam	linear ft.	630	616	7	7	0
Deck
Reinforced Concrete Top Flange	sq. ft.	5,300	5,180	120	0	0
Wearing Surfaces	sq. ft.	5,300	5,300	0	0	0
Substructure
Reinforced Concrete Column	each	10	10	0	0	0
Reinforced Concrete Pier Wall	linear ft.	109	0	109	0	0
Reinforced Concrete Abutment	linear ft.	109	109	0	0	0
Joints
Other Joint	linear ft.	84	84	0	0	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	252	126	126	0	0
Steel Protective Coating	sq. ft.	1,563	157	1,093	0	313

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