US Bridges

US-127 Br NB over US-127 SB

Fair

Isabella County, Michigan · @ S JCT US-127 Br · Structure no. 000000000004235

Built
1961
64 years old, rebuilt 2020
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
232 ft
3 main spans
Daily traffic
7,675
2020 count
Owner
State
State Highway Agency

About this bridge

US-127 Br NB over US-127 SB is a steel stringer/multi-beam or girder carrying US-127 Br NB over US-127 SB in Isabella County, Michigan. It was built in 1961 and reconstructed in 2020, 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 5 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 7,675 vehicles a day, roughly 3% of them trucks, projected to reach 8,475 by 2040. The structure is 232 ft (70.7 m) long and 36 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesUS-127 Br NB
CrossesUS-127 SB
Location@ S JCT US-127 Br
RouteU.S. Route 127
Coordinates43.56407, -84.73622
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.1 US tons
Inventory rating40 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length232 ft (70.7 m)
Longest span108 ft (32.8 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,675 (2020)
Projected traffic8,475 by 2040
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 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 Br NB over US-127 SB built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2020.

What condition is US-127 Br NB over US-127 SB 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 April 2023.

How much traffic does US-127 Br NB over US-127 SB carry?

About 7,675 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is US-127 Br NB over US-127 SB?

The structure is 232 ft (70.7 m) long with a longest span of 108 ft (32.8 m) and a deck 36 ft wide.

Who owns US-127 Br NB over US-127 SB?

It is owned by the State Highway Agency.