US Bridges

US-127 NB over Maple River

Fair

Gratiot County, Michigan · 1.5 MI N of Clinton Col · Structure no. 000000000003078

Built
1988
37 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
130 ft
2 main spans
Daily traffic
10,831
2018 count
Owner
State
State Highway Agency

About this bridge

US-127 NB over Maple River is a prestressed concrete stringer/multi-beam or girder carrying US-127 NB over Maple River in Gratiot County, Michigan. It was built in 1988, so it is 37 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 10,831 vehicles a day, roughly 8% of them trucks, projected to reach 12,456 by 2038. The structure is 130 ft (39.7 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS-127 NB
CrossesMaple River
Location1.5 MI N of Clinton Col
RouteU.S. Route 127
Coordinates43.13904, -84.56316
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating88.6 US tons
Inventory rating47.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length130 ft (39.7 m)
Longest span65 ft (19.8 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,831 (2018)
Projected traffic12,456 by 2038
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-127 NB over Maple River built?

It was built in 1988, making it 37 years old in 2025.

What condition is US-127 NB over Maple 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 July 2023.

How much traffic does US-127 NB over Maple River carry?

About 10,831 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is US-127 NB over Maple River?

The structure is 130 ft (39.7 m) long with a longest span of 65 ft (19.8 m) and a deck 47 ft wide.

Who owns US-127 NB over Maple River?

It is owned by the State Highway Agency.