US Bridges

US-127 NB over Willoughby RD

Fair

Ingham County, Michigan · 2.0 MI S of I-96 · Structure no. 000000000003725

Built
1966
59 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
107 ft
3 main spans
Daily traffic
16,286
2007 count
Owner
State
State Highway Agency

About this bridge

US-127 NB over Willoughby RD is a steel stringer/multi-beam or girder carrying US-127 NB over Willoughby RD in Ingham County, Michigan. It was built in 1966, so it is 59 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 16,286 vehicles a day, roughly 8% of them trucks, projected to reach 19,219 by 2018. The structure is 107 ft (32.5 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS-127 NB
CrossesWilloughby RD
Location2.0 MI S of I-96
RouteU.S. Route 127
CountyIngham County
StateMichigan
Coordinates42.65488, -84.47518
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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 alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length107 ft (32.5 m)
Longest span46 ft (14 m)
Deck width42 ft (12.9 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,286 (2007)
Projected traffic19,219 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$72,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-127 NB over Willoughby RD built?

It was built in 1966, making it 59 years old in 2025.

What condition is US-127 NB over Willoughby RD 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 2024.

How much traffic does US-127 NB over Willoughby RD carry?

About 16,286 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is US-127 NB over Willoughby RD?

The structure is 107 ft (32.5 m) long with a longest span of 46 ft (14 m) and a deck 42 ft wide.

Who owns US-127 NB over Willoughby RD?

It is owned by the State Highway Agency.