US Bridges

US-127 NB over Michigan Ave

Fair

Gratiot County, Michigan · NE Lts of Alma · Structure no. 000000000003102

Built
1961
64 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
147 ft
3 main spans
Daily traffic
8,293
2007 count
Owner
State
State Highway Agency

About this bridge

US-127 NB over Michigan Ave is a steel stringer/multi-beam or girder carrying US-127 NB over Michigan Ave in Gratiot County, Michigan. It was built in 1961, so it is 64 years old, older 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 8,293 vehicles a day, roughly 8% of them trucks, projected to reach 11,739 by 2018. The structure is 147 ft (44.8 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS-127 NB
CrossesMichigan Ave
LocationNE Lts of Alma
RouteU.S. Route 127
CountyGratiot County
StateMichigan
Coordinates43.39324, -84.62625
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length147 ft (44.8 m)
Longest span64 ft (19.5 m)
Deck width47 ft (14.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,293 (2007)
Projected traffic11,739 by 2018
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-127 NB over Michigan Ave built?

It was built in 1961, making it 64 years old in 2025.

What condition is US-127 NB over Michigan Ave 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 May 2023.

How much traffic does US-127 NB over Michigan Ave carry?

About 8,293 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is US-127 NB over Michigan Ave?

The structure is 147 ft (44.8 m) long with a longest span of 64 ft (19.5 m) and a deck 47 ft wide.

Who owns US-127 NB over Michigan Ave?

It is owned by the State Highway Agency.