US Bridges

M-28 over W Br Sage River

Fair

Luce County, Michigan · 5.5 MI E of M-123 · Structure no. 000000000005906

Built
2001
24 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
2,127
2007 count
Owner
State
State Highway Agency

About this bridge

M-28 over W Br Sage River is a prestressed concrete box beam or girders - single or spread carrying M-28 over W Br Sage River in Luce County, Michigan. It was built in 2001, so it is 24 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,127 vehicles a day, roughly 18% of them trucks, projected to reach 3,129 by 2018. The structure is 67 ft (20.4 m) long and 47 ft wide.

CarriesM-28
CrossesW Br Sage River
Location5.5 MI E of M-123
RouteState Highway 28
Coordinates46.30356, -85.39346
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating26.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length67 ft (20.4 m)
Longest span66 ft (20 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,127 (2007)
Projected traffic3,129 by 2018
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-28 over W Br Sage River built?

It was built in 2001, making it 24 years old in 2025.

What condition is M-28 over W Br Sage River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does M-28 over W Br Sage River carry?

About 2,127 vehicles per day (2007 count), of which roughly 18% are trucks.

How long is M-28 over W Br Sage River?

The structure is 67 ft (20.4 m) long with a longest span of 66 ft (20 m) and a deck 47 ft wide.

Who owns M-28 over W Br Sage River?

It is owned by the State Highway Agency.