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IRR COUNTY ROAD over ANTELOPE CK

Todd County, South Dakota

Map

Coordinates:
+43.27990, -100.55083
43°16'48" N, 100°33'03" W

Facts

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

Name:	IRR COUNTY ROAD over ANTELOPE CK
Structure number:	000000061350076
Location:	1.7S 5.0E MISSION
Purpose:	Carries highway over waterway
Route classification:	Major Collector (Rural) `[07]`
Length of largest span:	12.1 ft. `[3.7 m]`
Total length:	24.6 ft. `[7.5 m]`
Owner:	County Highway Agency `[02]`
Year built:	1994
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18+Mod / HS 20+Mod `[6]`
Number of main spans:	2
Main spans material:	Concrete continuous `[2]`
Main spans design:	Culvert `[19]`
Deck type:	Not applicable `[N]`

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:	Good
Status:	Open, no restriction `[A]`
Average daily traffic:	27 `[as of 2015]`
Truck traffic:	3% of total traffic
Structural appraisal:	Equal to present minimum criteria `[6]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Channel protection:	Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. `[5]`
Culvert condition:	Shrinkage cracks, light scaling and insignificant spalling which does not expose reinforcing steel. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Some minor scouring has occured near curtain walls, wingwalls or pipes. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting. `[7]`
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. `[8]`
Sufficiency rating:	92.8

Previous Inspections

Date	Condition	Culvert Condition	ADT	Suff. Rating
July 2017	Good	7 out of 10	27	92.8
July 2013	Good	7 out of 10	27	100.0
October 2009	Good	7 out of 10	27	100.0
October 2005	Good	7 out of 10	27	100.0
September 2003	Good	8 out of 10	27	100.0
October 2001	Good	8 out of 10	27	100.0
October 1999	Good	8 out of 10	27	100.0
June 1997	Good	8 out of 10	27	100.0
May 1995	Good	8 out of 10	27	100.0
August 1994	Good	8 out of 10	27	100.0
June 1993	Poor	N out of 10	27	33.9
May 1991	Poor	N out of 10	27	39.0

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