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309 ST over I029

Union County, South Dakota

Map

Coordinates:
+42.90998, -96.79460
42°54'36" N, 96°47'41" W

Facts

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

Name:	309 ST over I029
Structure number:	000000064006120
Location:	4 N SD 48 INTERCH
Purpose:	Carries highway over highway
Route classification:	Local (Rural) `[09]`
Length of largest span:	69.9 ft. `[21.3 m]`
Total length:	253.9 ft. `[77.4 m]`
Roadway width between curbs:	24.0 ft. `[7.3 m]`
Deck width edge-to-edge:	26.2 ft. `[8.0 m]`
Vertical clearance below bridge:	16.4 ft. `[5.0 m]`
Owner:	State Highway Agency `[01]`
Year built:	1961
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	M 18 / H 20 `[4]`
Number of main spans:	4
Main spans material:	Steel continuous `[4]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Epoxy Overlay `[5]`

Latest Available Inspection: November 2017

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	20 `[as of 2016]`
Truck traffic:	2% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Satisfactory `[6 out of 9]`
Substructure condition:	Good `[7 out of 9]`
Structural appraisal:	Equal to present minimum criteria `[6]`
Deck geometry appraisal:	Equal to present minimum criteria `[6]`
Underclearances appraisal:	Equal to present minimum criteria `[6]`
Roadway alignment appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Scour condition:	Bridge not over waterway. `[N]`
Sufficiency rating:	95.1

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
November 2017	Fair	Good	Satisfactory	Good	20	95.1
November 2015	Fair	Good	Satisfactory	Good	20	95.1
November 2013	Fair	Good	Satisfactory	Good	20	95.1
November 2011	Fair	Good	Satisfactory	Good	20	95.1
December 2009	Fair	Good	Satisfactory	Good	20	95.1
October 2007	Fair	Good	Satisfactory	Good	20	95.1
February 2006	Fair	Good	Satisfactory	Good	20	95.1
April 2004	Fair	Good	Satisfactory	Good	20	95.1
May 2002	Fair	Good	Satisfactory	Good	220	89.6
March 2000	Fair	Good	Satisfactory	Good	220	88.6
April 1998	Fair	Good	Fair	Satisfactory	220	77.6
April 1996	Good	Very Good	Good	Good	220	88.6
March 1994	Good	Very Good	Good	Good	220	89.8
February 1992	Good	Very Good	Good	Good	220	91.6

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
Steel Girder/Beam	linear ft.	1,016	540	460	16	0
Steel Protective Coating	sq. ft.	10,000	7,400	2,500	100	0
Deck
Reinforced Concrete Deck	sq. ft.	6,689	6,685	2	2	0
Wearing Surfaces	sq. ft.	6,689	6,100	424	100	65
Substructure
Reinforced Concrete Column	each	6	4	2	0	0
Reinforced Concrete Abutment	linear ft.	85	80	5	0	0
Reinforced Concrete Pier Cap	linear ft.	79	74	5	0	0
Joints
Strip Seal Joint	linear ft.	53	53	0	0	0
Bearings
Movable Bearing	each	16	16	0	0	0
Steel Protective Coating	sq. ft.	80	80	0	0	0
Fixed Bearing	each	4	4	0	0	0
Steel Protective Coating	sq. ft.	20	20	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	508	508	0	0	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/1495267