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PATTERSON LAKE RD over PORTAGE CREEK

Livingston County, Michigan

Map

Coordinates:
+42.43474, -83.98855
42°26'05" N, 83°59'19" W

Facts

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

Name:	PATTERSON LAKE RD over PORTAGE CREEK
Structure number:	000000000005806
Old structure number:	47200003000B020 `(from 1992 edition)`
Location:	SEC 32 PUTNAM TWP
Purpose:	Carries highway over waterway
Route classification:	Major Collector (Rural) `[07]`
Length of largest span:	60.4 ft. `[18.4 m]`
Total length:	64.3 ft. `[19.6 m]`
Roadway width between curbs:	42.0 ft. `[12.8 m]`
Deck width edge-to-edge:	44.3 ft. `[13.5 m]`
Skew angle:	47°
Owner:	County Highway Agency `[02]`
Year built:	1998
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18 / HS 20 `[5]`
Main span material:	Prestressed concrete `[5]`
Main span design:	Box beam or girders - Multiple `[05]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) `[1]`

Latest Available Inspection: October 2018

Good/Fair/Poor Condition:	Good
Status:	Open, no restriction `[A]`
Average daily traffic:	1,614 `[as of 2013]`
Truck traffic:	3% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Very Good `[8 out of 9]`
Substructure condition:	Good `[7 out of 9]`
Structural appraisal:	Better than present minimum criteria `[7]`
Deck geometry appraisal:	Better than present minimum criteria `[7]`
Water adequacy appraisal:	Better than present minimum criteria `[7]`
Roadway alignment appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Channel protection:	Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. `[7]`
Scour condition:	Bridge foundations determined to be stable for assessed or calculated scour condition. `[5]`
Sufficiency rating:	98.5

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
October 2018	Good	Good	Very Good	Good	1614	98.5
October 2016	Good	Good	Very Good	Good	1614	98.5
October 2014	Good	Good	Very Good	Good	1614	98.5
October 2012	Good	Good	Very Good	Good	2168	98.4
October 2010	Good	Good	Very Good	Good	2080	98.4
November 2008	Good	Good	Very Good	Good	2080	98.4
December 2006	Good	Good	Very Good	Very Good	1988	98.4
December 2004	Good	Very Good	Very Good	Very Good	1988	95.3
November 2002	Good	Very Good	Very Good	Very Good	1988	95.3
June 1998	Good	Very Good	Very Good	Very Good	1780	95.3
May 1996	Poor	Poor	Serious	Fair	1675	9.3
May 1994	Poor	Poor	Serious	Fair	1600	9.8
July 1993	Poor	Poor	Serious	Fair	1392	11.1
June 1991	Poor	Poor	Serious	Fair	1392	11.1

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