Share:

M-28 over ROCK RIVER

Alger County, Michigan

Map

Coordinates:
+46.46382, -86.91603
46°27'50" N, 86°54'58" W

Facts

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

Name:	M-28 over ROCK RIVER
Structure number:	000000000000046
Old structure number:	02102041000B030 `(from 1992 edition)`
Location:	5.1 MI NW OF AU TRAIN
Purpose:	Carries highway over waterway
Route classification:	Principal Arterial - Other (Rural) `[02]`
Length of largest span:	40.0 ft. `[12.2 m]`
Total length:	40.0 ft. `[12.2 m]`
Roadway width between curbs:	47.9 ft. `[14.6 m]`
Deck width edge-to-edge:	49.5 ft. `[15.1 m]`
Owner:	State Highway Agency `[01]`
Year built:	1932
Year reconstructed:	1975
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18 / HS 20 `[5]`
Main span material:	Steel `[3]`
Main span design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) `[1]`

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	3,093 `[as of 2007]`
Truck traffic:	10% of total traffic
Deck condition:	Very Good `[8 out of 9]`
Superstructure condition:	Good `[7 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Structural appraisal:	Equal to present minimum criteria `[6]`
Deck geometry appraisal:	Superior to present desirable criteria `[9]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Better than present minimum criteria `[7]`
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 the assessed or calculated scour condition. `[8]`
Sufficiency rating:	90.8
Recommended work:	Bridge deck replacement with only incidental widening. `[37]`
Estimated cost of work:	$7,000

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
May 2017	Fair	Very Good	Good	Satisfactory	3093	90.8
May 2015	Fair	Very Good	Good	Satisfactory	3093	90.8
May 2013	Fair	Very Good	Good	Satisfactory	3093	90.8
May 2011	Fair	Very Good	Satisfactory	Satisfactory	3093	90.8
May 2009	Good	Very Good	Good	Good	3093	90.8
May 2007	Good	Very Good	Good	Good	3622	89.2
May 2005	Good	Very Good	Good	Good	3400	89.8
May 2003	Good	Very Good	Good	Good	3400	89.7
May 2001	Good	Very Good	Good	Good	3400	89.7
May 1999	Good	Very Good	Good	Good	3400	89.7
July 1997	Good	Very Good	Good	Good	3400	87.7
October 1995	Good	Good	Good	Good	3300	88.0
September 1993	Fair	Very Good	Good	Fair	3300	75.5
September 1991	Good	Very Good	Good	Good	3300	88.0

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.	400	385	15	0	0
Steel Protective Coating	sq. ft.	2,500	2,375	125	0	0
Deck
Reinforced Concrete Deck	sq. ft.	2,000	1,990	10	0	0
Wearing Surfaces	sq. ft.	2,000	1,998	0	2	0
Substructure
Reinforced Concrete Abutment	linear ft.	130	82	36	12	0
Joints
Pourable Joint	linear ft.	92	0	0	92	0
Bearings
Movable Bearing	each	10	10	0	0	0
Fixed Bearing	each	10	10	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	80	75	2	3	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/1247271