US Bridges

US-127 SB over Mdot RR Corridor

Fair

Gratiot County, Michigan · 0.5 MI E of Ithaca · Structure no. 000000000003091

Built
1959
66 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
167 ft
3 main spans
Daily traffic
8,987
2007 count
Owner
State
State Highway Agency

About this bridge

US-127 SB over Mdot RR Corridor is a steel stringer/multi-beam or girder carrying US-127 SB over Mdot RR Corridor in Gratiot County, Michigan. It was built in 1959, so it is 66 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 8,987 vehicles a day, roughly 8% of them trucks, projected to reach 11,805 by 2018. The structure is 167 ft (50.9 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS-127 SB
CrossesMdot RR Corridor
Location0.5 MI E of Ithaca
RouteU.S. Route 127
Coordinates43.28727, -84.58238
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length167 ft (50.9 m)
Longest span56 ft (17 m)
Deck width58 ft (17.6 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,987 (2007)
Projected traffic11,805 by 2018
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 SB over Mdot RR Corridor built?

It was built in 1959, making it 66 years old in 2025.

What condition is US-127 SB over Mdot RR Corridor 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 SB over Mdot RR Corridor carry?

About 8,987 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is US-127 SB over Mdot RR Corridor?

The structure is 167 ft (50.9 m) long with a longest span of 56 ft (17 m) and a deck 58 ft wide.

Who owns US-127 SB over Mdot RR Corridor?

It is owned by the State Highway Agency.