US Bridges

US-127 Br NB over US-127 SB

Poor

Isabella County, Michigan · @ US-127 Br · Structure no. 000000000004254

Built
1961
64 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
236 ft
3 main spans
Daily traffic
2,953
2007 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, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,953 vehicles a day, roughly 4% of them trucks, projected to reach 5,305 by 2018. The structure is 236 ft (71.9 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS-127 Br NB
CrossesUS-127 SB
Location@ US-127 Br
RouteU.S. Route 127
Coordinates43.62318, -84.75848
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, 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 inspectionApril 2024
Inspection intervalevery 12 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating45.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length236 ft (71.9 m)
Longest span106 ft (32.4 m)
Deck width37 ft (11.2 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,953 (2007)
Projected traffic5,305 by 2018
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedDeck replacement with only incidental widening
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.

What condition is US-127 Br NB over US-127 SB in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

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

About 2,953 vehicles per day (2007 count), of which roughly 4% are trucks.

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

The structure is 236 ft (71.9 m) long with a longest span of 106 ft (32.4 m) and a deck 37 ft wide.

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

It is owned by the State Highway Agency.