M-28 over W BR ONTONAGON RIVER

Map

Coordinates:
+46.58928, -89.52674
46°35'21" N, 89°31'36" W

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

Name:	M-28 over W BR ONTONAGON RIVER
Structure number:	000000000008486
Old structure number:	66166022000B010 `(from 1992 edition)`
Location:	2.3 MI E OF E JCT M-64
Purpose:	Carries highway over waterway
Route classification:	Principal Arterial - Other (Rural) `[02]`
Length of largest span:	73.8 ft. `[22.5 m]`
Total length:	189.0 ft. `[57.6 m]`
Roadway width between curbs:	43.0 ft. `[13.1 m]`
Deck width edge-to-edge:	46.3 ft. `[14.1 m]`
Skew angle:	28°
Owner:	State Highway Agency `[01]`
Year built:	1965
Year reconstructed:	1997
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18 / HS 20 `[5]`
Number of main spans:	3
Main spans material:	Steel `[3]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) `[1]`

Good/Fair/Poor Condition:	Good
Status:	Open, no restriction `[A]`
Average daily traffic:	1,331 `[as of 2007]`
Truck traffic:	19% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Good `[7 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:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Roadway alignment appraisal:	Equal to present minimum criteria `[6]`
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. `[8]`
Scour condition:	Countermeasures have been installed to mitigate an existing problem with scour. `[7]`
Sufficiency rating:	91.6

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
August 2018	Good	Good	Good	Good	1331	91.6
August 2016	Good	Good	Good	Good	1331	91.6
August 2014	Good	Good	Good	Good	1331	91.6
August 2012	Good	Good	Good	Good	1331	91.6
August 2010	Good	Good	Good	Good	1331	91.6
August 2008	Good	Good	Good	Good	1331	91.6
August 2006	Good	Good	Good	Good	1589	90.5
August 2004	Good	Good	Good	Good	3700	82.6
August 2002	Good	Good	Good	Good	3700	82.6
August 2000	Good	Good	Good	Good	3700	79.6
October 1999	Good	Good	Good	Good	3700	79.6
July 1996	Poor	Poor	Poor	Good	1900	50.4
September 1995	Poor	Poor	Poor	Good	2000	50.4
June 1993	Poor	Poor	Poor	Good	2000	50.4
October 1992	Poor	Poor	Poor	Good	2000	50.4
September 1991	Poor	Poor	Poor	Good	2000	50.4

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.	1,134	1,119	15	0	0
Steel Protective Coating	sq. ft.	10,200	9,995	200	5	0
Deck
Reinforced Concrete Deck	sq. ft.	8,750	8,735	15	0	0
Wearing Surfaces	sq. ft.	8,750	0	8,000	500	250
Superstructure
Steel Pin or Pin & Hangar Assembly	each	12	12	0	0	0
Substructure
Reinforced Concrete Column	each	6	6	0	0	0
Reinforced Concrete Abutment	linear ft.	154	148	6	0	0
Reinforced Concrete Pile Cap/Footing	linear ft.	100	95	5	0	0
Reinforced Concrete Pier Cap	linear ft.	132	54	78	0	0
Joints
Strip Seal Joint	linear ft.	54	52	2	0	0
Pourable Joint	linear ft.	150	0	60	60	30
Bearings
Movable Bearing	each	12	12	0	0	0
Fixed Bearing	each	12	8	4	0	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	378	366	12	0	0